./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 ff03de63 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-dev-ff03de6 [2021-12-21 17:05:12,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:05:12,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:05:12,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:05:12,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:05:12,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:05:12,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:05:12,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:05:12,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:05:12,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:05:12,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:05:12,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:05:12,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:05:12,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:05:12,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:05:12,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:05:12,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:05:12,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:05:12,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:05:12,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:05:12,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:05:12,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:05:12,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:05:12,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:05:12,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:05:12,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:05:12,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:05:12,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:05:12,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:05:12,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:05:12,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:05:12,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:05:12,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:05:12,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:05:12,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:05:12,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:05:12,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:05:12,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:05:12,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:05:12,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:05:12,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:05:12,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:05:12,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:05:12,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:05:12,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:05:12,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:05:12,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:05:12,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:05:12,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:05:12,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:05:12,731 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:05:12,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:05:12,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:05:12,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:05:12,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:05:12,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:05:12,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:05:12,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:05:12,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:05:12,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:05:12,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:05:12,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:05:12,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:05:12,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:05:12,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:05:12,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:05:12,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:05:12,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:05:12,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:05:12,742 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:05:12,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:05:12,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:05:12,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:05:12,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-12-21 17:05:12,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:05:12,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:05:12,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:05:12,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:05:12,944 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:05:12,945 INFO L432 ainManager$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 [2021-12-21 17:05:13,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c700cde/6573b786e8954cd6bac6892cd13d0a1c/FLAGc43256e93 [2021-12-21 17:05:13,665 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:05:13,666 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 [2021-12-21 17:05:13,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c700cde/6573b786e8954cd6bac6892cd13d0a1c/FLAGc43256e93 [2021-12-21 17:05:13,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c700cde/6573b786e8954cd6bac6892cd13d0a1c [2021-12-21 17:05:13,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:05:13,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:05:13,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:05:13,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:05:13,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:05:13,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:05:13" (1/1) ... [2021-12-21 17:05:13,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8ea70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:13, skipping insertion in model container [2021-12-21 17:05:13,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:05:13" (1/1) ... [2021-12-21 17:05:13,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:05:14,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:05:15,875 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] [2021-12-21 17:05:15,878 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] [2021-12-21 17:05:15,878 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] [2021-12-21 17:05:15,879 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] [2021-12-21 17:05:15,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:05:15,922 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:05:16,135 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] [2021-12-21 17:05:16,136 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] [2021-12-21 17:05:16,136 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] [2021-12-21 17:05:16,136 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] [2021-12-21 17:05:16,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:05:16,271 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:05:16,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16 WrapperNode [2021-12-21 17:05:16,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:05:16,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:05:16,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:05:16,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:05:16,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,450 INFO L137 Inliner]: procedures = 412, calls = 1826, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 4587 [2021-12-21 17:05:16,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:05:16,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:05:16,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:05:16,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:05:16,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:05:16,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:05:16,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:05:16,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:05:16,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (1/1) ... [2021-12-21 17:05:16,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:05:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:05:16,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:05:16,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:05:16,739 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-12-21 17:05:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-12-21 17:05:16,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:05:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:05:16,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:05:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:05:16,740 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-21 17:05:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-21 17:05:16,740 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:05:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:05:16,741 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2021-12-21 17:05:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2021-12-21 17:05:16,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:05:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:05:16,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-21 17:05:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-21 17:05:16,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:05:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:05:16,742 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:05:16,742 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:05:16,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2021-12-21 17:05:16,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2021-12-21 17:05:16,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:05:16,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:05:16,742 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 17:05:16,742 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 17:05:16,742 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:05:16,743 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:05:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:05:16,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:05:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:05:16,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:05:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:05:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 17:05:16,743 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 17:05:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:05:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:05:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:05:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:05:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:05:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:05:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:05:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:05:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:05:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-21 17:05:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-21 17:05:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:05:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:05:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:05:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:05:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:05:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:05:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:05:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:05:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-21 17:05:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-21 17:05:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:05:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:05:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:05:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:05:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:05:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:05:16,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:05:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:05:16,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:05:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-21 17:05:16,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-21 17:05:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:05:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:05:16,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:05:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:05:16,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:05:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:05:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:05:16,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:05:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:05:16,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:05:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-12-21 17:05:16,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2021-12-21 17:05:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:05:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:05:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:05:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:05:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:05:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:05:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:05:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:05:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 17:05:16,750 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 17:05:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-21 17:05:16,750 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-21 17:05:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-21 17:05:16,750 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-21 17:05:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2021-12-21 17:05:16,750 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2021-12-21 17:05:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-21 17:05:16,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-21 17:05:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:05:16,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:05:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:05:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:05:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:05:16,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:05:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:05:16,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:05:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-12-21 17:05:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2021-12-21 17:05:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:05:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:05:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:05:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:05:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2021-12-21 17:05:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2021-12-21 17:05:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:05:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:05:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-21 17:05:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-21 17:05:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:05:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:05:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:05:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:05:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:05:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:05:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 17:05:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 17:05:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:05:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:05:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:05:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-21 17:05:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-21 17:05:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:05:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:05:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2021-12-21 17:05:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2021-12-21 17:05:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:05:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:05:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-21 17:05:16,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-21 17:05:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:05:16,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:05:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:05:16,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:05:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2021-12-21 17:05:16,756 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2021-12-21 17:05:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:05:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:05:16,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:05:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2021-12-21 17:05:16,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2021-12-21 17:05:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2021-12-21 17:05:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2021-12-21 17:05:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2021-12-21 17:05:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2021-12-21 17:05:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:05:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:05:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-21 17:05:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-21 17:05:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 17:05:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 17:05:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:05:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2021-12-21 17:05:16,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2021-12-21 17:05:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:05:16,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:05:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-21 17:05:16,759 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-21 17:05:17,342 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:05:17,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:05:17,490 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:05:19,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:05:19,114 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:05:19,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:05:19,125 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:05:19,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:05:19 BoogieIcfgContainer [2021-12-21 17:05:19,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:05:19,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:05:19,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:05:19,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:05:19,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:05:13" (1/3) ... [2021-12-21 17:05:19,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fdca84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:05:19, skipping insertion in model container [2021-12-21 17:05:19,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:05:16" (2/3) ... [2021-12-21 17:05:19,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fdca84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:05:19, skipping insertion in model container [2021-12-21 17:05:19,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:05:19" (3/3) ... [2021-12-21 17:05:19,132 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-12-21 17:05:19,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:05:19,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:05:19,167 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:05:19,171 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:05:19,171 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:05:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 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) [2021-12-21 17:05:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-21 17:05:19,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:19,238 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:19,238 INFO L402 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)] === [2021-12-21 17:05:19,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1114654547, now seen corresponding path program 1 times [2021-12-21 17:05:19,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:19,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148508123] [2021-12-21 17:05:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:19,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:05:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 17:05:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:05:19,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:19,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148508123] [2021-12-21 17:05:19,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148508123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:19,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:19,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:05:19,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172058023] [2021-12-21 17:05:19,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:19,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:05:19,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:19,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:05:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:05:19,843 INFO L87 Difference]: Start difference. First operand has 1568 states, 1094 states have (on average 1.287020109689214) internal successors, (1408), 1121 states have internal predecessors, (1408), 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) [2021-12-21 17:05:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:22,310 INFO L93 Difference]: Finished difference Result 4440 states and 6347 transitions. [2021-12-21 17:05:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:05:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2021-12-21 17:05:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:22,350 INFO L225 Difference]: With dead ends: 4440 [2021-12-21 17:05:22,351 INFO L226 Difference]: Without dead ends: 2879 [2021-12-21 17:05:22,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:22,363 INFO L933 BasicCegarLoop]: 2351 mSDtfsCounter, 2379 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 1112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1112 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:22,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2689 Valid, 4861 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1112 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 17:05:22,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-12-21 17:05:22,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2819. [2021-12-21 17:05:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1966 states have (on average 1.2746693794506612) internal successors, (2506), 2024 states have internal predecessors, (2506), 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) [2021-12-21 17:05:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3934 transitions. [2021-12-21 17:05:22,496 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3934 transitions. Word has length 129 [2021-12-21 17:05:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:22,497 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3934 transitions. [2021-12-21 17:05:22,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-21 17:05:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3934 transitions. [2021-12-21 17:05:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-21 17:05:22,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:22,500 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:22,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:05:22,501 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1677512621, now seen corresponding path program 1 times [2021-12-21 17:05:22,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:22,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249021394] [2021-12-21 17:05:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:22,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 17:05:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:05:22,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:22,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249021394] [2021-12-21 17:05:22,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249021394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:22,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:22,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:05:22,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009260731] [2021-12-21 17:05:22,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:22,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:05:22,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:22,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:05:22,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:05:22,829 INFO L87 Difference]: Start difference. First operand 2819 states and 3934 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) [2021-12-21 17:05:25,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:25,288 INFO L93 Difference]: Finished difference Result 8334 states and 11656 transitions. [2021-12-21 17:05:25,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:05:25,288 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 [2021-12-21 17:05:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:25,317 INFO L225 Difference]: With dead ends: 8334 [2021-12-21 17:05:25,317 INFO L226 Difference]: Without dead ends: 5538 [2021-12-21 17:05:25,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:25,330 INFO L933 BasicCegarLoop]: 2279 mSDtfsCounter, 2618 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 1120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 4701 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:25,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2970 Valid, 4701 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 17:05:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2021-12-21 17:05:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5468. [2021-12-21 17:05:25,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 3830 states have (on average 1.2754569190600522) internal successors, (4885), 3938 states have internal predecessors, (4885), 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) [2021-12-21 17:05:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 7621 transitions. [2021-12-21 17:05:25,591 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 7621 transitions. Word has length 129 [2021-12-21 17:05:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:25,591 INFO L470 AbstractCegarLoop]: Abstraction has 5468 states and 7621 transitions. [2021-12-21 17:05:25,592 INFO L471 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) [2021-12-21 17:05:25,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 7621 transitions. [2021-12-21 17:05:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-21 17:05:25,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:25,595 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:25,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:05:25,596 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:25,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:25,596 INFO L85 PathProgramCache]: Analyzing trace with hash 527388282, now seen corresponding path program 1 times [2021-12-21 17:05:25,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:25,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020378277] [2021-12-21 17:05:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:25,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 17:05:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:05:25,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:25,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020378277] [2021-12-21 17:05:25,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020378277] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:25,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:25,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:05:25,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308655123] [2021-12-21 17:05:25,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:25,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:05:25,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:25,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:05:25,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:05:25,826 INFO L87 Difference]: Start difference. First operand 5468 states and 7621 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-21 17:05:28,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:28,191 INFO L93 Difference]: Finished difference Result 15548 states and 21726 transitions. [2021-12-21 17:05:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:05:28,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2021-12-21 17:05:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:28,244 INFO L225 Difference]: With dead ends: 15548 [2021-12-21 17:05:28,244 INFO L226 Difference]: Without dead ends: 10103 [2021-12-21 17:05:28,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:28,274 INFO L933 BasicCegarLoop]: 2260 mSDtfsCounter, 2375 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 4681 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:28,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2697 Valid, 4681 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 17:05:28,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-12-21 17:05:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 9886. [2021-12-21 17:05:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 6886 states have (on average 1.2769387162358408) internal successors, (8793), 7088 states have internal predecessors, (8793), 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) [2021-12-21 17:05:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 13775 transitions. [2021-12-21 17:05:28,675 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 13775 transitions. Word has length 134 [2021-12-21 17:05:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:28,676 INFO L470 AbstractCegarLoop]: Abstraction has 9886 states and 13775 transitions. [2021-12-21 17:05:28,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-21 17:05:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 13775 transitions. [2021-12-21 17:05:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-21 17:05:28,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:28,683 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:28,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:05:28,683 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash -730204044, now seen corresponding path program 1 times [2021-12-21 17:05:28,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:28,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157065717] [2021-12-21 17:05:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:28,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:05:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-21 17:05:28,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:28,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157065717] [2021-12-21 17:05:28,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157065717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:28,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:28,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:05:28,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649081408] [2021-12-21 17:05:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:28,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:05:28,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:28,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:05:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:05:28,962 INFO L87 Difference]: Start difference. First operand 9886 states and 13775 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) [2021-12-21 17:05:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:31,300 INFO L93 Difference]: Finished difference Result 20076 states and 28034 transitions. [2021-12-21 17:05:31,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:05:31,300 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 [2021-12-21 17:05:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:31,372 INFO L225 Difference]: With dead ends: 20076 [2021-12-21 17:05:31,372 INFO L226 Difference]: Without dead ends: 14962 [2021-12-21 17:05:31,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:31,399 INFO L933 BasicCegarLoop]: 3916 mSDtfsCounter, 2104 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 7174 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:31,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2453 Valid, 7174 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 17:05:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2021-12-21 17:05:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 14679. [2021-12-21 17:05:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14679 states, 10233 states have (on average 1.2771425779341348) internal successors, (13069), 10529 states have internal predecessors, (13069), 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) [2021-12-21 17:05:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14679 states to 14679 states and 20444 transitions. [2021-12-21 17:05:31,928 INFO L78 Accepts]: Start accepts. Automaton has 14679 states and 20444 transitions. Word has length 187 [2021-12-21 17:05:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:31,930 INFO L470 AbstractCegarLoop]: Abstraction has 14679 states and 20444 transitions. [2021-12-21 17:05:31,930 INFO L471 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) [2021-12-21 17:05:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 14679 states and 20444 transitions. [2021-12-21 17:05:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-21 17:05:31,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:31,935 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:31,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:05:31,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:31,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:31,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1193023990, now seen corresponding path program 1 times [2021-12-21 17:05:31,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:31,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629663869] [2021-12-21 17:05:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:31,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:05:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-21 17:05:32,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:32,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629663869] [2021-12-21 17:05:32,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629663869] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:32,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:32,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:32,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668322235] [2021-12-21 17:05:32,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:32,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:32,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:32,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:32,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:32,265 INFO L87 Difference]: Start difference. First operand 14679 states and 20444 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 17:05:34,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:34,452 INFO L93 Difference]: Finished difference Result 14964 states and 20899 transitions. [2021-12-21 17:05:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:34,453 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 [2021-12-21 17:05:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:34,503 INFO L225 Difference]: With dead ends: 14964 [2021-12-21 17:05:34,503 INFO L226 Difference]: Without dead ends: 14962 [2021-12-21 17:05:34,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:34,512 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2182 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 6090 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:34,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 6090 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 17:05:34,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2021-12-21 17:05:34,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 14683. [2021-12-21 17:05:34,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14683 states, 10236 states have (on average 1.2770613520906604) internal successors, (13072), 10532 states have internal predecessors, (13072), 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) [2021-12-21 17:05:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 20447 transitions. [2021-12-21 17:05:34,897 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 20447 transitions. Word has length 187 [2021-12-21 17:05:34,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:34,899 INFO L470 AbstractCegarLoop]: Abstraction has 14683 states and 20447 transitions. [2021-12-21 17:05:34,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 17:05:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 20447 transitions. [2021-12-21 17:05:34,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-21 17:05:34,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:34,905 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:34,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:05:34,905 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:34,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:34,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1101116577, now seen corresponding path program 1 times [2021-12-21 17:05:34,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:34,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161574862] [2021-12-21 17:05:34,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:34,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:05:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:05:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-21 17:05:35,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:35,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161574862] [2021-12-21 17:05:35,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161574862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:35,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:35,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:35,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729394035] [2021-12-21 17:05:35,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:35,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:35,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:35,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:35,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:35,280 INFO L87 Difference]: Start difference. First operand 14683 states and 20447 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) [2021-12-21 17:05:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:37,148 INFO L93 Difference]: Finished difference Result 14968 states and 20902 transitions. [2021-12-21 17:05:37,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:37,149 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 [2021-12-21 17:05:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:37,202 INFO L225 Difference]: With dead ends: 14968 [2021-12-21 17:05:37,202 INFO L226 Difference]: Without dead ends: 14966 [2021-12-21 17:05:37,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:37,213 INFO L933 BasicCegarLoop]: 2035 mSDtfsCounter, 2174 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:37,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 6089 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 17:05:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14966 states. [2021-12-21 17:05:37,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14966 to 14687. [2021-12-21 17:05:37,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14687 states, 10239 states have (on average 1.276980173845102) internal successors, (13075), 10535 states have internal predecessors, (13075), 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) [2021-12-21 17:05:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14687 states to 14687 states and 20450 transitions. [2021-12-21 17:05:37,649 INFO L78 Accepts]: Start accepts. Automaton has 14687 states and 20450 transitions. Word has length 192 [2021-12-21 17:05:37,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:37,649 INFO L470 AbstractCegarLoop]: Abstraction has 14687 states and 20450 transitions. [2021-12-21 17:05:37,649 INFO L471 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) [2021-12-21 17:05:37,650 INFO L276 IsEmpty]: Start isEmpty. Operand 14687 states and 20450 transitions. [2021-12-21 17:05:37,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-21 17:05:37,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:37,655 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 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] [2021-12-21 17:05:37,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:05:37,656 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:37,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:37,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1614051123, now seen corresponding path program 1 times [2021-12-21 17:05:37,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:37,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330326416] [2021-12-21 17:05:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:37,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 17:05:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 17:05:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 17:05:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 17:05:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 17:05:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-12-21 17:05:37,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330326416] [2021-12-21 17:05:37,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330326416] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:37,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:37,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:05:37,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443453436] [2021-12-21 17:05:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:37,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:05:37,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:05:37,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:05:37,920 INFO L87 Difference]: Start difference. First operand 14687 states and 20450 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:05:42,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:42,136 INFO L93 Difference]: Finished difference Result 29801 states and 41573 transitions. [2021-12-21 17:05:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:05:42,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 206 [2021-12-21 17:05:42,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:42,210 INFO L225 Difference]: With dead ends: 29801 [2021-12-21 17:05:42,211 INFO L226 Difference]: Without dead ends: 19886 [2021-12-21 17:05:42,251 INFO L932 BasicCegarLoop]: 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 [2021-12-21 17:05:42,251 INFO L933 BasicCegarLoop]: 3792 mSDtfsCounter, 2655 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 1828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 7969 SdHoareTripleChecker+Invalid, 4337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1828 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:42,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2896 Valid, 7969 Invalid, 4337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1828 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-21 17:05:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19886 states. [2021-12-21 17:05:42,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19886 to 19484. [2021-12-21 17:05:42,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19484 states, 13590 states have (on average 1.2770419426048565) internal successors, (17355), 13980 states have internal predecessors, (17355), 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) [2021-12-21 17:05:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19484 states to 19484 states and 27123 transitions. [2021-12-21 17:05:42,953 INFO L78 Accepts]: Start accepts. Automaton has 19484 states and 27123 transitions. Word has length 206 [2021-12-21 17:05:42,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:42,955 INFO L470 AbstractCegarLoop]: Abstraction has 19484 states and 27123 transitions. [2021-12-21 17:05:42,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:05:42,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19484 states and 27123 transitions. [2021-12-21 17:05:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-21 17:05:42,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:42,961 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:42,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:05:42,962 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:42,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:42,962 INFO L85 PathProgramCache]: Analyzing trace with hash -786650282, now seen corresponding path program 1 times [2021-12-21 17:05:42,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:42,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465184605] [2021-12-21 17:05:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:42,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:05:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:05:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:05:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-12-21 17:05:43,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:43,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465184605] [2021-12-21 17:05:43,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465184605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:43,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:43,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:43,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704119381] [2021-12-21 17:05:43,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:43,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:43,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:43,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:43,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:43,231 INFO L87 Difference]: Start difference. First operand 19484 states and 27123 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) [2021-12-21 17:05:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:45,085 INFO L93 Difference]: Finished difference Result 19862 states and 27725 transitions. [2021-12-21 17:05:45,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:45,086 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 [2021-12-21 17:05:45,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:45,151 INFO L225 Difference]: With dead ends: 19862 [2021-12-21 17:05:45,151 INFO L226 Difference]: Without dead ends: 19860 [2021-12-21 17:05:45,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:45,164 INFO L933 BasicCegarLoop]: 2032 mSDtfsCounter, 2176 mSDsluCounter, 4047 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:45,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2408 Valid, 6079 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-21 17:05:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2021-12-21 17:05:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19488. [2021-12-21 17:05:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19488 states, 13593 states have (on average 1.2769807989406312) internal successors, (17358), 13983 states have internal predecessors, (17358), 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) [2021-12-21 17:05:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19488 states to 19488 states and 27126 transitions. [2021-12-21 17:05:45,872 INFO L78 Accepts]: Start accepts. Automaton has 19488 states and 27126 transitions. Word has length 197 [2021-12-21 17:05:45,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:45,873 INFO L470 AbstractCegarLoop]: Abstraction has 19488 states and 27126 transitions. [2021-12-21 17:05:45,873 INFO L471 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) [2021-12-21 17:05:45,873 INFO L276 IsEmpty]: Start isEmpty. Operand 19488 states and 27126 transitions. [2021-12-21 17:05:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-21 17:05:45,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:45,879 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-21 17:05:45,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 17:05:45,879 INFO L402 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)] === [2021-12-21 17:05:45,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:45,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1602830158, now seen corresponding path program 1 times [2021-12-21 17:05:45,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:45,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368177698] [2021-12-21 17:05:45,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:45,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 17:05:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 17:05:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 17:05:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:05:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 17:05:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:05:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 17:05:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-12-21 17:05:46,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:46,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368177698] [2021-12-21 17:05:46,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368177698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:46,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:46,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:46,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327994212] [2021-12-21 17:05:46,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:46,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:46,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:46,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:46,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:46,183 INFO L87 Difference]: Start difference. First operand 19488 states and 27126 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-12-21 17:05:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:52,994 INFO L93 Difference]: Finished difference Result 42013 states and 58320 transitions. [2021-12-21 17:05:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:52,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 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 195 [2021-12-21 17:05:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:53,072 INFO L225 Difference]: With dead ends: 42013 [2021-12-21 17:05:53,073 INFO L226 Difference]: Without dead ends: 22548 [2021-12-21 17:05:53,128 INFO L932 BasicCegarLoop]: 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 [2021-12-21 17:05:53,129 INFO L933 BasicCegarLoop]: 2522 mSDtfsCounter, 1631 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 6480 SdHoareTripleChecker+Invalid, 3955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:53,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1882 Valid, 6480 Invalid, 3955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [847 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-21 17:05:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2021-12-21 17:05:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 21872. [2021-12-21 17:05:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21872 states, 15514 states have (on average 1.2702720123759186) internal successors, (19707), 15895 states have internal predecessors, (19707), 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) [2021-12-21 17:05:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21872 states to 21872 states and 30010 transitions. [2021-12-21 17:05:54,022 INFO L78 Accepts]: Start accepts. Automaton has 21872 states and 30010 transitions. Word has length 195 [2021-12-21 17:05:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:54,022 INFO L470 AbstractCegarLoop]: Abstraction has 21872 states and 30010 transitions. [2021-12-21 17:05:54,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-12-21 17:05:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 21872 states and 30010 transitions. [2021-12-21 17:05:54,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-21 17:05:54,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:54,029 INFO L514 BasicCegarLoop]: 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] [2021-12-21 17:05:54,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 17:05:54,029 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:54,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:54,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2028223105, now seen corresponding path program 1 times [2021-12-21 17:05:54,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:54,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55142890] [2021-12-21 17:05:54,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:54,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:05:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:05:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:05:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:05:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:54,280 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-21 17:05:54,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:54,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55142890] [2021-12-21 17:05:54,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55142890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:54,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:54,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:54,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341067834] [2021-12-21 17:05:54,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:54,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:54,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:54,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:54,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:54,282 INFO L87 Difference]: Start difference. First operand 21872 states and 30010 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) [2021-12-21 17:05:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:55,990 INFO L93 Difference]: Finished difference Result 22370 states and 30783 transitions. [2021-12-21 17:05:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:55,990 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 [2021-12-21 17:05:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:56,063 INFO L225 Difference]: With dead ends: 22370 [2021-12-21 17:05:56,063 INFO L226 Difference]: Without dead ends: 22368 [2021-12-21 17:05:56,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:56,079 INFO L933 BasicCegarLoop]: 2035 mSDtfsCounter, 2174 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:56,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 6089 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-21 17:05:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22368 states. [2021-12-21 17:05:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22368 to 21876. [2021-12-21 17:05:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21876 states, 15517 states have (on average 1.2702197589740285) internal successors, (19710), 15898 states have internal predecessors, (19710), 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) [2021-12-21 17:05:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21876 states to 21876 states and 30013 transitions. [2021-12-21 17:05:56,992 INFO L78 Accepts]: Start accepts. Automaton has 21876 states and 30013 transitions. Word has length 202 [2021-12-21 17:05:56,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:56,992 INFO L470 AbstractCegarLoop]: Abstraction has 21876 states and 30013 transitions. [2021-12-21 17:05:56,993 INFO L471 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) [2021-12-21 17:05:56,993 INFO L276 IsEmpty]: Start isEmpty. Operand 21876 states and 30013 transitions. [2021-12-21 17:05:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-21 17:05:56,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:56,998 INFO L514 BasicCegarLoop]: 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] [2021-12-21 17:05:56,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 17:05:56,998 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1552987318, now seen corresponding path program 1 times [2021-12-21 17:05:56,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:56,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815965948] [2021-12-21 17:05:56,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:56,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:05:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:05:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:05:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:05:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:05:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:05:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:05:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:05:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:05:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:05:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 17:05:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-12-21 17:05:57,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815965948] [2021-12-21 17:05:57,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815965948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:57,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:57,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:57,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409999109] [2021-12-21 17:05:57,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:57,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:57,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:57,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:57,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:57,244 INFO L87 Difference]: Start difference. First operand 21876 states and 30013 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) [2021-12-21 17:05:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:59,427 INFO L93 Difference]: Finished difference Result 22374 states and 30786 transitions. [2021-12-21 17:05:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:59,428 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 [2021-12-21 17:05:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:59,496 INFO L225 Difference]: With dead ends: 22374 [2021-12-21 17:05:59,497 INFO L226 Difference]: Without dead ends: 22372 [2021-12-21 17:05:59,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:59,511 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 2174 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:59,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 6085 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 17:05:59,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22372 states. [2021-12-21 17:06:00,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22372 to 21880. [2021-12-21 17:06:00,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21880 states, 15520 states have (on average 1.270167525773196) internal successors, (19713), 15901 states have internal predecessors, (19713), 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) [2021-12-21 17:06:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21880 states to 21880 states and 30016 transitions. [2021-12-21 17:06:00,434 INFO L78 Accepts]: Start accepts. Automaton has 21880 states and 30016 transitions. Word has length 207 [2021-12-21 17:06:00,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:00,435 INFO L470 AbstractCegarLoop]: Abstraction has 21880 states and 30016 transitions. [2021-12-21 17:06:00,435 INFO L471 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) [2021-12-21 17:06:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 21880 states and 30016 transitions. [2021-12-21 17:06:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-21 17:06:00,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:00,441 INFO L514 BasicCegarLoop]: 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] [2021-12-21 17:06:00,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 17:06:00,441 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 64014239, now seen corresponding path program 1 times [2021-12-21 17:06:00,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:00,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040143847] [2021-12-21 17:06:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:00,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:06:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:06:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:06:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:06:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:06:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:06:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:06:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:06:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:06:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:06:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 17:06:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 17:06:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-12-21 17:06:00,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:00,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040143847] [2021-12-21 17:06:00,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040143847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:00,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:00,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:06:00,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912859355] [2021-12-21 17:06:00,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:00,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:06:00,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:00,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:06:00,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:06:00,719 INFO L87 Difference]: Start difference. First operand 21880 states and 30016 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) [2021-12-21 17:06:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:03,030 INFO L93 Difference]: Finished difference Result 22378 states and 30789 transitions. [2021-12-21 17:06:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:06:03,030 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 [2021-12-21 17:06:03,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:03,101 INFO L225 Difference]: With dead ends: 22378 [2021-12-21 17:06:03,101 INFO L226 Difference]: Without dead ends: 22376 [2021-12-21 17:06:03,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:06:03,117 INFO L933 BasicCegarLoop]: 2030 mSDtfsCounter, 2176 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 6071 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:03,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2410 Valid, 6071 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 17:06:03,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22376 states. [2021-12-21 17:06:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22376 to 21884. [2021-12-21 17:06:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21884 states, 15523 states have (on average 1.2701153127617084) internal successors, (19716), 15904 states have internal predecessors, (19716), 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) [2021-12-21 17:06:04,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21884 states to 21884 states and 30019 transitions. [2021-12-21 17:06:04,016 INFO L78 Accepts]: Start accepts. Automaton has 21884 states and 30019 transitions. Word has length 212 [2021-12-21 17:06:04,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:04,017 INFO L470 AbstractCegarLoop]: Abstraction has 21884 states and 30019 transitions. [2021-12-21 17:06:04,017 INFO L471 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) [2021-12-21 17:06:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 21884 states and 30019 transitions. [2021-12-21 17:06:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-21 17:06:04,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:04,023 INFO L514 BasicCegarLoop]: 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] [2021-12-21 17:06:04,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 17:06:04,023 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:04,023 INFO L85 PathProgramCache]: Analyzing trace with hash 696399382, now seen corresponding path program 1 times [2021-12-21 17:06:04,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:04,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725021358] [2021-12-21 17:06:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:04,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:06:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:06:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:06:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:06:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:06:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:06:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:06:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:06:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:06:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:06:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 17:06:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 17:06:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:06:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2021-12-21 17:06:04,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:04,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725021358] [2021-12-21 17:06:04,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725021358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:04,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:04,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:06:04,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547671323] [2021-12-21 17:06:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:04,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:06:04,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:04,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:06:04,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:06:04,269 INFO L87 Difference]: Start difference. First operand 21884 states and 30019 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) [2021-12-21 17:06:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:06,661 INFO L93 Difference]: Finished difference Result 23780 states and 32304 transitions. [2021-12-21 17:06:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:06:06,661 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 [2021-12-21 17:06:06,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:06,716 INFO L225 Difference]: With dead ends: 23780 [2021-12-21 17:06:06,717 INFO L226 Difference]: Without dead ends: 23778 [2021-12-21 17:06:06,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:06:06,725 INFO L933 BasicCegarLoop]: 2055 mSDtfsCounter, 2001 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 6452 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:06,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 6452 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 17:06:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23778 states. [2021-12-21 17:06:07,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23778 to 23187. [2021-12-21 17:06:07,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23187 states, 16405 states have (on average 1.2605303261200853) internal successors, (20679), 16795 states have internal predecessors, (20679), 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) [2021-12-21 17:06:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23187 states to 23187 states and 31408 transitions. [2021-12-21 17:06:07,564 INFO L78 Accepts]: Start accepts. Automaton has 23187 states and 31408 transitions. Word has length 217 [2021-12-21 17:06:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:07,564 INFO L470 AbstractCegarLoop]: Abstraction has 23187 states and 31408 transitions. [2021-12-21 17:06:07,564 INFO L471 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) [2021-12-21 17:06:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 23187 states and 31408 transitions. [2021-12-21 17:06:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-21 17:06:07,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:07,570 INFO L514 BasicCegarLoop]: 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] [2021-12-21 17:06:07,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 17:06:07,571 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:07,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1790136767, now seen corresponding path program 1 times [2021-12-21 17:06:07,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:07,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231381966] [2021-12-21 17:06:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:07,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:06:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:06:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:06:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:06:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:06:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:06:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:06:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:06:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:06:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:06:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 17:06:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 17:06:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:06:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-21 17:06:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2021-12-21 17:06:07,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:07,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231381966] [2021-12-21 17:06:07,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231381966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:07,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:07,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:06:07,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139614231] [2021-12-21 17:06:07,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:07,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:06:07,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:06:07,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:06:07,814 INFO L87 Difference]: Start difference. First operand 23187 states and 31408 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) [2021-12-21 17:06:10,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:10,413 INFO L93 Difference]: Finished difference Result 23784 states and 32307 transitions. [2021-12-21 17:06:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:06:10,413 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 [2021-12-21 17:06:10,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:10,477 INFO L225 Difference]: With dead ends: 23784 [2021-12-21 17:06:10,478 INFO L226 Difference]: Without dead ends: 23782 [2021-12-21 17:06:10,488 INFO L932 BasicCegarLoop]: 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 [2021-12-21 17:06:10,488 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 2174 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 6081 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:10,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 6081 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-21 17:06:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23782 states. [2021-12-21 17:06:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23782 to 23191. [2021-12-21 17:06:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23191 states, 16408 states have (on average 1.2604826913700633) internal successors, (20682), 16798 states have internal predecessors, (20682), 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) [2021-12-21 17:06:11,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23191 states to 23191 states and 31411 transitions. [2021-12-21 17:06:11,390 INFO L78 Accepts]: Start accepts. Automaton has 23191 states and 31411 transitions. Word has length 222 [2021-12-21 17:06:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:11,390 INFO L470 AbstractCegarLoop]: Abstraction has 23191 states and 31411 transitions. [2021-12-21 17:06:11,391 INFO L471 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) [2021-12-21 17:06:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 23191 states and 31411 transitions. [2021-12-21 17:06:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 17:06:11,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:11,397 INFO L514 BasicCegarLoop]: 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] [2021-12-21 17:06:11,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 17:06:11,397 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:11,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:11,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1937452918, now seen corresponding path program 1 times [2021-12-21 17:06:11,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:11,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907749133] [2021-12-21 17:06:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:11,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:06:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:06:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:06:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 17:06:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 17:06:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 17:06:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:06:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 17:06:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 17:06:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:06:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 17:06:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 17:06:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 17:06:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-21 17:06:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-21 17:06:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2021-12-21 17:06:11,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:11,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907749133] [2021-12-21 17:06:11,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907749133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:11,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:11,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:06:11,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916408219] [2021-12-21 17:06:11,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:11,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:06:11,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:11,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:06:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:06:11,630 INFO L87 Difference]: Start difference. First operand 23191 states and 31411 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)