./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.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 ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 09:29:12,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 09:29:12,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 09:29:12,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 09:29:12,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 09:29:12,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 09:29:12,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 09:29:12,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 09:29:12,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 09:29:12,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 09:29:12,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 09:29:12,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 09:29:12,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 09:29:12,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 09:29:12,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 09:29:12,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 09:29:12,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 09:29:12,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 09:29:12,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 09:29:12,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 09:29:12,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 09:29:12,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 09:29:12,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 09:29:12,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 09:29:12,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 09:29:12,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 09:29:12,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 09:29:12,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 09:29:12,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 09:29:12,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 09:29:12,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 09:29:12,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 09:29:12,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 09:29:12,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 09:29:12,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 09:29:12,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 09:29:12,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 09:29:12,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 09:29:12,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 09:29:12,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 09:29:12,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 09:29:12,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 09:29:12,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 09:29:12,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 09:29:12,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 09:29:12,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 09:29:12,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 09:29:12,715 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 09:29:12,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 09:29:12,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 09:29:12,715 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 09:29:12,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 09:29:12,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 09:29:12,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 09:29:12,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 09:29:12,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 09:29:12,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 09:29:12,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 09:29:12,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 09:29:12,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 09:29:12,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 09:29:12,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 09:29:12,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 09:29:12,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 09:29:12,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 09:29:12,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 09:29:12,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 09:29:12,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 09:29:12,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 09:29:12,719 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 09:29:12,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 09:29:12,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 09:29:12,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 09:29:12,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab0b375f71eb557eddedfb6836efa7383e8c24249ba51445e071f612ca1dd29b [2021-11-17 09:29:12,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 09:29:12,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 09:29:12,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 09:29:12,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 09:29:12,993 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 09:29:12,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-17 09:29:13,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43840114/9713cf0f720d41afa04a1cd4339b727a/FLAGd247d0d9b [2021-11-17 09:29:13,983 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 09:29:13,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-17 09:29:14,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43840114/9713cf0f720d41afa04a1cd4339b727a/FLAGd247d0d9b [2021-11-17 09:29:14,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43840114/9713cf0f720d41afa04a1cd4339b727a [2021-11-17 09:29:14,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 09:29:14,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 09:29:14,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 09:29:14,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 09:29:14,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 09:29:14,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 09:29:14" (1/1) ... [2021-11-17 09:29:14,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b5b727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:14, skipping insertion in model container [2021-11-17 09:29:14,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 09:29:14" (1/1) ... [2021-11-17 09:29:14,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 09:29:14,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 09:29:20,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647538,647551] [2021-11-17 09:29:20,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647707,647720] [2021-11-17 09:29:20,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647874,647887] [2021-11-17 09:29:20,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[648042,648055] [2021-11-17 09:29:20,622 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 09:29:20,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 09:29:21,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647538,647551] [2021-11-17 09:29:21,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647707,647720] [2021-11-17 09:29:21,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[647874,647887] [2021-11-17 09:29:21,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[648042,648055] [2021-11-17 09:29:21,234 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 09:29:21,704 INFO L208 MainTranslator]: Completed translation [2021-11-17 09:29:21,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21 WrapperNode [2021-11-17 09:29:21,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 09:29:21,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 09:29:21,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 09:29:21,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 09:29:21,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,437 INFO L137 Inliner]: procedures = 794, calls = 7637, calls flagged for inlining = 373, calls inlined = 338, statements flattened = 15768 [2021-11-17 09:29:22,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 09:29:22,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 09:29:22,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 09:29:22,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 09:29:22,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:22,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:23,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 09:29:23,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 09:29:23,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 09:29:23,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 09:29:23,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (1/1) ... [2021-11-17 09:29:23,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 09:29:23,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:29:23,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 09:29:23,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 09:29:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-17 09:29:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-17 09:29:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-17 09:29:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 09:29:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 09:29:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-17 09:29:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-17 09:29:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-17 09:29:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-17 09:29:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-17 09:29:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-17 09:29:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-17 09:29:23,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-17 09:29:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-17 09:29:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-17 09:29:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-17 09:29:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-17 09:29:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 09:29:23,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 09:29:23,302 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 09:29:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 09:29:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 09:29:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 09:29:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-17 09:29:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-17 09:29:23,303 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-17 09:29:23,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-17 09:29:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-17 09:29:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-17 09:29:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 09:29:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 09:29:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 09:29:23,304 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 09:29:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-17 09:29:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-17 09:29:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-17 09:29:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-17 09:29:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 09:29:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 09:29:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 09:29:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 09:29:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-17 09:29:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-17 09:29:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-17 09:29:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-17 09:29:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-17 09:29:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-17 09:29:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-17 09:29:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-17 09:29:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-17 09:29:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-17 09:29:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-17 09:29:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-17 09:29:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-17 09:29:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-17 09:29:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 09:29:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 09:29:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-17 09:29:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-17 09:29:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-17 09:29:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-17 09:29:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 09:29:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 09:29:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-17 09:29:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-17 09:29:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-17 09:29:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-17 09:29:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-17 09:29:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-17 09:29:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 09:29:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 09:29:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 09:29:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-17 09:29:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-17 09:29:23,312 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-17 09:29:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-17 09:29:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 09:29:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 09:29:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-17 09:29:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-17 09:29:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-17 09:29:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-17 09:29:23,313 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-17 09:29:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-17 09:29:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-17 09:29:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-17 09:29:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 09:29:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 09:29:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 09:29:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 09:29:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-17 09:29:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-17 09:29:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 09:29:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 09:29:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 09:29:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-17 09:29:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-17 09:29:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-17 09:29:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-17 09:29:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 09:29:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 09:29:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 09:29:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 09:29:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 09:29:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 09:29:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 09:29:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-17 09:29:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-17 09:29:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-17 09:29:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-17 09:29:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 09:29:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 09:29:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-17 09:29:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-17 09:29:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 09:29:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 09:29:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-11-17 09:29:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql_adapter [2021-11-17 09:29:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 09:29:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 09:29:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 09:29:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 09:29:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-17 09:29:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-17 09:29:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-17 09:29:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-17 09:29:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 09:29:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 09:29:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-11-17 09:29:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql_adapter [2021-11-17 09:29:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 09:29:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 09:29:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-17 09:29:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-17 09:29:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-17 09:29:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-17 09:29:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 09:29:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 09:29:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 09:29:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-17 09:29:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-17 09:29:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 09:29:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 09:29:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-17 09:29:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-17 09:29:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 09:29:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 09:29:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 09:29:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-17 09:29:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-17 09:29:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 09:29:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 09:29:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-17 09:29:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-17 09:29:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-17 09:29:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-17 09:29:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 09:29:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 09:29:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-17 09:29:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-17 09:29:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 09:29:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 09:29:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-17 09:29:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-17 09:29:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 09:29:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 09:29:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 09:29:23,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 09:29:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-17 09:29:23,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-17 09:29:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 09:29:23,342 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 09:29:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 09:29:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 09:29:23,343 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 09:29:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-17 09:29:23,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-17 09:29:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-17 09:29:23,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-17 09:29:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-17 09:29:23,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-17 09:29:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 09:29:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-17 09:29:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-17 09:29:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-17 09:29:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-17 09:29:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-17 09:29:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-17 09:29:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-17 09:29:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-17 09:29:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-17 09:29:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-17 09:29:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-17 09:29:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-17 09:29:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 09:29:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 09:29:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 09:29:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 09:29:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-17 09:29:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-17 09:29:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-17 09:29:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-17 09:29:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 09:29:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 09:29:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 09:29:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 09:29:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-17 09:29:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-17 09:29:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 09:29:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 09:29:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-17 09:29:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-17 09:29:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 09:29:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-17 09:29:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-17 09:29:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 09:29:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 09:29:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-11-17 09:29:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-11-17 09:29:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2021-11-17 09:29:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2021-11-17 09:29:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-17 09:29:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-17 09:29:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-17 09:29:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-17 09:29:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-17 09:29:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-17 09:29:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-17 09:29:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-17 09:29:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 09:29:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 09:29:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-17 09:29:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-17 09:29:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-17 09:29:23,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-17 09:29:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-17 09:29:23,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-17 09:29:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-17 09:29:23,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-17 09:29:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-17 09:29:23,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-17 09:29:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-17 09:29:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-17 09:29:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-17 09:29:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-17 09:29:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 09:29:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 09:29:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-17 09:29:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-17 09:29:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-17 09:29:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-17 09:29:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-17 09:29:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-17 09:29:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 09:29:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 09:29:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-17 09:29:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-17 09:29:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-17 09:29:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-17 09:29:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-17 09:29:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-17 09:29:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-17 09:29:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 09:29:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 09:29:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure ql_timer [2021-11-17 09:29:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_timer [2021-11-17 09:29:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 09:29:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 09:29:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-17 09:29:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-17 09:29:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-17 09:29:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-17 09:29:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-17 09:29:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-17 09:29:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 09:29:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 09:29:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 09:29:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 09:29:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-17 09:29:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-17 09:29:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-17 09:29:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-17 09:29:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 09:29:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 09:29:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-17 09:29:23,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-17 09:29:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 09:29:23,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 09:29:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-17 09:29:23,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-17 09:29:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-17 09:29:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-17 09:29:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-11-17 09:29:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-11-17 09:29:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 09:29:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 09:29:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-17 09:29:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-17 09:29:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-17 09:29:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-17 09:29:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-17 09:29:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-17 09:29:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 09:29:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 09:29:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-17 09:29:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-17 09:29:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 09:29:23,372 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 09:29:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 09:29:23,372 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 09:29:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 09:29:23,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 09:29:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-17 09:29:23,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-17 09:29:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-11-17 09:29:23,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-11-17 09:29:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-17 09:29:23,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-17 09:29:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 09:29:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-17 09:29:23,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-17 09:29:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-17 09:29:23,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-17 09:29:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-17 09:29:23,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-17 09:29:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-17 09:29:23,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-17 09:29:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 09:29:23,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 09:29:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-17 09:29:23,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-17 09:29:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-17 09:29:23,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-17 09:29:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 09:29:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-17 09:29:23,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-17 09:29:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 09:29:23,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 09:29:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 09:29:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-17 09:29:23,376 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-17 09:29:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 09:29:23,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 09:29:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 09:29:23,377 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 09:29:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 09:29:23,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 09:29:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 09:29:23,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 09:29:23,377 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-17 09:29:23,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-17 09:29:23,378 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-17 09:29:23,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-17 09:29:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2021-11-17 09:29:23,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2021-11-17 09:29:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-17 09:29:23,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-17 09:29:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-17 09:29:23,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-17 09:29:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-17 09:29:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-17 09:29:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-17 09:29:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-17 09:29:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-17 09:29:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-17 09:29:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 09:29:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 09:29:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-17 09:29:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-17 09:29:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-17 09:29:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-17 09:29:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 09:29:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 09:29:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-17 09:29:23,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-17 09:29:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 09:29:23,387 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 09:29:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-17 09:29:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-17 09:29:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 09:29:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 09:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-17 09:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-17 09:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-17 09:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-17 09:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-17 09:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-17 09:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-17 09:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-17 09:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 09:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 09:29:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-17 09:29:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-17 09:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-17 09:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 09:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-17 09:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-17 09:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-17 09:29:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 09:29:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 09:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 09:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 09:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-17 09:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-17 09:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-17 09:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-17 09:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 09:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 09:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-17 09:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-17 09:29:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-17 09:29:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-17 09:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 09:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-17 09:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-17 09:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-17 09:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-17 09:29:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-17 09:29:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 09:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 09:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 09:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 09:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-17 09:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-17 09:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 09:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 09:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-17 09:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-17 09:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-17 09:29:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-17 09:29:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-17 09:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 09:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-17 09:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 09:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 09:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-17 09:29:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-17 09:29:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-17 09:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-17 09:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-17 09:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-17 09:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 09:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 09:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2021-11-17 09:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2021-11-17 09:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-17 09:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-17 09:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-17 09:29:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-17 09:29:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-17 09:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-17 09:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-17 09:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 09:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 09:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 09:29:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-17 09:29:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 09:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-17 09:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-17 09:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 09:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-17 09:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-17 09:29:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-17 09:29:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-17 09:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-17 09:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-17 09:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-17 09:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 09:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 09:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 09:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-17 09:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-17 09:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 09:29:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 09:29:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-17 09:29:23,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-17 09:29:23,416 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-17 09:29:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-17 09:29:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-17 09:29:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-17 09:29:24,905 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 09:29:24,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 09:29:24,998 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 09:29:49,485 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 09:29:49,522 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 09:29:49,523 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-17 09:29:49,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 09:29:49 BoogieIcfgContainer [2021-11-17 09:29:49,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 09:29:49,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 09:29:49,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 09:29:49,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 09:29:49,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 09:29:14" (1/3) ... [2021-11-17 09:29:49,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3400d1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 09:29:49, skipping insertion in model container [2021-11-17 09:29:49,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:29:21" (2/3) ... [2021-11-17 09:29:49,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3400d1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 09:29:49, skipping insertion in model container [2021-11-17 09:29:49,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 09:29:49" (3/3) ... [2021-11-17 09:29:49,537 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-17 09:29:49,546 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 09:29:49,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 09:29:49,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 09:29:49,628 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 09:29:49,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 09:29:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 4969 states, 3485 states have (on average 1.3351506456241033) internal successors, (4653), 3564 states have internal predecessors, (4653), 1236 states have call successors, (1236), 245 states have call predecessors, (1236), 244 states have return successors, (1230), 1211 states have call predecessors, (1230), 1230 states have call successors, (1230) [2021-11-17 09:29:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-17 09:29:49,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:49,727 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:49,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:49,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -362375395, now seen corresponding path program 1 times [2021-11-17 09:29:49,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:49,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102682303] [2021-11-17 09:29:49,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:49,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 09:29:50,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:50,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102682303] [2021-11-17 09:29:50,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102682303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:50,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:50,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:50,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607502039] [2021-11-17 09:29:50,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:50,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:50,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:50,715 INFO L87 Difference]: Start difference. First operand has 4969 states, 3485 states have (on average 1.3351506456241033) internal successors, (4653), 3564 states have internal predecessors, (4653), 1236 states have call successors, (1236), 245 states have call predecessors, (1236), 244 states have return successors, (1230), 1211 states have call predecessors, (1230), 1230 states have call successors, (1230) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-17 09:29:51,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:51,204 INFO L93 Difference]: Finished difference Result 9891 states and 14297 transitions. [2021-11-17 09:29:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:51,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2021-11-17 09:29:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:51,263 INFO L225 Difference]: With dead ends: 9891 [2021-11-17 09:29:51,264 INFO L226 Difference]: Without dead ends: 4935 [2021-11-17 09:29:51,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:51,303 INFO L933 BasicCegarLoop]: 7058 mSDtfsCounter, 7033 mSDsluCounter, 14099 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7049 SdHoareTripleChecker+Valid, 21157 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:51,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7049 Valid, 21157 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:29:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2021-11-17 09:29:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4935. [2021-11-17 09:29:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 3458 states have (on average 1.3270676691729324) internal successors, (4589), 3534 states have internal predecessors, (4589), 1230 states have call successors, (1230), 245 states have call predecessors, (1230), 244 states have return successors, (1227), 1208 states have call predecessors, (1227), 1227 states have call successors, (1227) [2021-11-17 09:29:51,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 7046 transitions. [2021-11-17 09:29:51,630 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 7046 transitions. Word has length 48 [2021-11-17 09:29:51,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:51,630 INFO L470 AbstractCegarLoop]: Abstraction has 4935 states and 7046 transitions. [2021-11-17 09:29:51,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-17 09:29:51,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 7046 transitions. [2021-11-17 09:29:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-17 09:29:51,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:51,633 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:51,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 09:29:51,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:51,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:51,635 INFO L85 PathProgramCache]: Analyzing trace with hash 392208065, now seen corresponding path program 1 times [2021-11-17 09:29:51,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:51,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142120049] [2021-11-17 09:29:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:51,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-17 09:29:52,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:52,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142120049] [2021-11-17 09:29:52,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142120049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:52,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:52,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:52,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521464015] [2021-11-17 09:29:52,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:52,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:52,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:52,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:52,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:52,299 INFO L87 Difference]: Start difference. First operand 4935 states and 7046 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 09:29:52,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:52,572 INFO L93 Difference]: Finished difference Result 4941 states and 7051 transitions. [2021-11-17 09:29:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-11-17 09:29:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:52,605 INFO L225 Difference]: With dead ends: 4941 [2021-11-17 09:29:52,605 INFO L226 Difference]: Without dead ends: 4939 [2021-11-17 09:29:52,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:52,611 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7025 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:52,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7025 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:52,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2021-11-17 09:29:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4939. [2021-11-17 09:29:52,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3461 states have (on average 1.3267841664258884) internal successors, (4592), 3537 states have internal predecessors, (4592), 1230 states have call successors, (1230), 246 states have call predecessors, (1230), 245 states have return successors, (1227), 1208 states have call predecessors, (1227), 1227 states have call successors, (1227) [2021-11-17 09:29:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7049 transitions. [2021-11-17 09:29:52,817 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7049 transitions. Word has length 53 [2021-11-17 09:29:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:52,818 INFO L470 AbstractCegarLoop]: Abstraction has 4939 states and 7049 transitions. [2021-11-17 09:29:52,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 09:29:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7049 transitions. [2021-11-17 09:29:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-17 09:29:52,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:52,820 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:52,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 09:29:52,821 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash 9098589, now seen corresponding path program 1 times [2021-11-17 09:29:52,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:52,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932353718] [2021-11-17 09:29:52,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:52,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:29:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-17 09:29:53,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:53,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932353718] [2021-11-17 09:29:53,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932353718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:53,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:53,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:53,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624238491] [2021-11-17 09:29:53,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:53,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:53,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:53,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:53,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:53,219 INFO L87 Difference]: Start difference. First operand 4939 states and 7049 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 09:29:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:53,477 INFO L93 Difference]: Finished difference Result 4945 states and 7054 transitions. [2021-11-17 09:29:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:53,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-17 09:29:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:53,509 INFO L225 Difference]: With dead ends: 4945 [2021-11-17 09:29:53,510 INFO L226 Difference]: Without dead ends: 4943 [2021-11-17 09:29:53,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:53,515 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7024 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:53,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7024 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2021-11-17 09:29:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4943. [2021-11-17 09:29:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 3464 states have (on average 1.326501154734411) internal successors, (4595), 3540 states have internal predecessors, (4595), 1230 states have call successors, (1230), 247 states have call predecessors, (1230), 246 states have return successors, (1227), 1208 states have call predecessors, (1227), 1227 states have call successors, (1227) [2021-11-17 09:29:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7052 transitions. [2021-11-17 09:29:53,727 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7052 transitions. Word has length 58 [2021-11-17 09:29:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:53,728 INFO L470 AbstractCegarLoop]: Abstraction has 4943 states and 7052 transitions. [2021-11-17 09:29:53,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 09:29:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7052 transitions. [2021-11-17 09:29:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-17 09:29:53,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:53,730 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:53,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 09:29:53,730 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:53,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1906538497, now seen corresponding path program 1 times [2021-11-17 09:29:53,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:53,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281608055] [2021-11-17 09:29:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:53,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:29:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:29:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-17 09:29:54,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:54,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281608055] [2021-11-17 09:29:54,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281608055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:54,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:54,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:54,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200441061] [2021-11-17 09:29:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:54,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:54,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:54,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:54,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:54,246 INFO L87 Difference]: Start difference. First operand 4943 states and 7052 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 09:29:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:54,559 INFO L93 Difference]: Finished difference Result 4981 states and 7082 transitions. [2021-11-17 09:29:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2021-11-17 09:29:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:54,592 INFO L225 Difference]: With dead ends: 4981 [2021-11-17 09:29:54,592 INFO L226 Difference]: Without dead ends: 4979 [2021-11-17 09:29:54,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:54,600 INFO L933 BasicCegarLoop]: 7046 mSDtfsCounter, 6958 mSDsluCounter, 14145 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6970 SdHoareTripleChecker+Valid, 21191 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:54,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6970 Valid, 21191 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2021-11-17 09:29:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4977. [2021-11-17 09:29:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4977 states, 3488 states have (on average 1.3245412844036697) internal successors, (4620), 3564 states have internal predecessors, (4620), 1231 states have call successors, (1231), 256 states have call predecessors, (1231), 255 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:29:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 7079 transitions. [2021-11-17 09:29:54,871 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 7079 transitions. Word has length 63 [2021-11-17 09:29:54,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:54,871 INFO L470 AbstractCegarLoop]: Abstraction has 4977 states and 7079 transitions. [2021-11-17 09:29:54,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 09:29:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 7079 transitions. [2021-11-17 09:29:54,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-17 09:29:54,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:54,878 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:54,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 09:29:54,878 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:54,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:54,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2023224221, now seen corresponding path program 1 times [2021-11-17 09:29:54,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:54,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009542176] [2021-11-17 09:29:54,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:54,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:29:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:29:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:29:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-17 09:29:55,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:55,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009542176] [2021-11-17 09:29:55,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009542176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:55,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:55,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:55,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944412656] [2021-11-17 09:29:55,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:55,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:55,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:55,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:55,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:55,352 INFO L87 Difference]: Start difference. First operand 4977 states and 7079 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 09:29:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:55,621 INFO L93 Difference]: Finished difference Result 4983 states and 7084 transitions. [2021-11-17 09:29:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:55,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2021-11-17 09:29:55,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:55,655 INFO L225 Difference]: With dead ends: 4983 [2021-11-17 09:29:55,655 INFO L226 Difference]: Without dead ends: 4981 [2021-11-17 09:29:55,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:55,662 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7022 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:55,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7022 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2021-11-17 09:29:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4981. [2021-11-17 09:29:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4981 states, 3491 states have (on average 1.3242623890002865) internal successors, (4623), 3567 states have internal predecessors, (4623), 1231 states have call successors, (1231), 257 states have call predecessors, (1231), 256 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:29:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4981 states to 4981 states and 7082 transitions. [2021-11-17 09:29:55,897 INFO L78 Accepts]: Start accepts. Automaton has 4981 states and 7082 transitions. Word has length 68 [2021-11-17 09:29:55,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:55,899 INFO L470 AbstractCegarLoop]: Abstraction has 4981 states and 7082 transitions. [2021-11-17 09:29:55,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 09:29:55,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4981 states and 7082 transitions. [2021-11-17 09:29:55,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-17 09:29:55,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:55,900 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:55,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 09:29:55,901 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:55,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1735823039, now seen corresponding path program 1 times [2021-11-17 09:29:55,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:55,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061696350] [2021-11-17 09:29:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:55,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:29:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:29:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:29:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:29:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-17 09:29:56,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:56,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061696350] [2021-11-17 09:29:56,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061696350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:56,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:56,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:56,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045375845] [2021-11-17 09:29:56,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:56,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:56,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:56,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:56,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:56,363 INFO L87 Difference]: Start difference. First operand 4981 states and 7082 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 09:29:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:56,613 INFO L93 Difference]: Finished difference Result 4987 states and 7087 transitions. [2021-11-17 09:29:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-11-17 09:29:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:56,643 INFO L225 Difference]: With dead ends: 4987 [2021-11-17 09:29:56,643 INFO L226 Difference]: Without dead ends: 4985 [2021-11-17 09:29:56,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:56,647 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7021 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:56,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7021 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2021-11-17 09:29:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4985. [2021-11-17 09:29:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 3494 states have (on average 1.3239839725243274) internal successors, (4626), 3570 states have internal predecessors, (4626), 1231 states have call successors, (1231), 258 states have call predecessors, (1231), 257 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:29:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 7085 transitions. [2021-11-17 09:29:56,852 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 7085 transitions. Word has length 73 [2021-11-17 09:29:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:56,853 INFO L470 AbstractCegarLoop]: Abstraction has 4985 states and 7085 transitions. [2021-11-17 09:29:56,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 09:29:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 7085 transitions. [2021-11-17 09:29:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-17 09:29:56,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:56,855 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:56,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 09:29:56,856 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:56,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:56,856 INFO L85 PathProgramCache]: Analyzing trace with hash 754315741, now seen corresponding path program 1 times [2021-11-17 09:29:56,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:56,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545302720] [2021-11-17 09:29:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:56,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:29:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:29:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:29:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:29:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:29:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-17 09:29:57,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:57,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545302720] [2021-11-17 09:29:57,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545302720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:57,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:57,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:57,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471654107] [2021-11-17 09:29:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:57,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:57,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:57,312 INFO L87 Difference]: Start difference. First operand 4985 states and 7085 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 09:29:57,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:57,583 INFO L93 Difference]: Finished difference Result 4991 states and 7090 transitions. [2021-11-17 09:29:57,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:57,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2021-11-17 09:29:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:57,615 INFO L225 Difference]: With dead ends: 4991 [2021-11-17 09:29:57,615 INFO L226 Difference]: Without dead ends: 4989 [2021-11-17 09:29:57,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:57,620 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7020 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:57,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7020 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:57,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2021-11-17 09:29:57,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4989. [2021-11-17 09:29:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4989 states, 3497 states have (on average 1.3237060337432085) internal successors, (4629), 3573 states have internal predecessors, (4629), 1231 states have call successors, (1231), 259 states have call predecessors, (1231), 258 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:29:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4989 states to 4989 states and 7088 transitions. [2021-11-17 09:29:57,819 INFO L78 Accepts]: Start accepts. Automaton has 4989 states and 7088 transitions. Word has length 78 [2021-11-17 09:29:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:57,821 INFO L470 AbstractCegarLoop]: Abstraction has 4989 states and 7088 transitions. [2021-11-17 09:29:57,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 09:29:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4989 states and 7088 transitions. [2021-11-17 09:29:57,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-17 09:29:57,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:57,827 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:57,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 09:29:57,827 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:57,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:57,828 INFO L85 PathProgramCache]: Analyzing trace with hash -223704447, now seen corresponding path program 1 times [2021-11-17 09:29:57,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:57,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412091758] [2021-11-17 09:29:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:57,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:29:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:29:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:29:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:29:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:29:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:29:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 09:29:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-17 09:29:58,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:58,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412091758] [2021-11-17 09:29:58,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412091758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:58,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:58,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:58,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892788623] [2021-11-17 09:29:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:58,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:58,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:58,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:58,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:58,285 INFO L87 Difference]: Start difference. First operand 4989 states and 7088 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 09:29:58,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:58,535 INFO L93 Difference]: Finished difference Result 4995 states and 7093 transitions. [2021-11-17 09:29:58,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:58,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2021-11-17 09:29:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:58,559 INFO L225 Difference]: With dead ends: 4995 [2021-11-17 09:29:58,560 INFO L226 Difference]: Without dead ends: 4993 [2021-11-17 09:29:58,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:58,564 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7019 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:58,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7019 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2021-11-17 09:29:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4993. [2021-11-17 09:29:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4993 states, 3500 states have (on average 1.3234285714285714) internal successors, (4632), 3576 states have internal predecessors, (4632), 1231 states have call successors, (1231), 260 states have call predecessors, (1231), 259 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:29:58,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4993 states to 4993 states and 7091 transitions. [2021-11-17 09:29:58,764 INFO L78 Accepts]: Start accepts. Automaton has 4993 states and 7091 transitions. Word has length 83 [2021-11-17 09:29:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:58,765 INFO L470 AbstractCegarLoop]: Abstraction has 4993 states and 7091 transitions. [2021-11-17 09:29:58,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 09:29:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4993 states and 7091 transitions. [2021-11-17 09:29:58,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-17 09:29:58,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:58,767 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:58,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 09:29:58,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1052985721, now seen corresponding path program 1 times [2021-11-17 09:29:58,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:58,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051954362] [2021-11-17 09:29:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:58,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:29:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:29:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:29:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 09:29:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:29:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:29:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:29:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:29:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:29:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:29:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:29:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:29:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-17 09:29:59,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:29:59,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051954362] [2021-11-17 09:29:59,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051954362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:29:59,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:29:59,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:29:59,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056610320] [2021-11-17 09:29:59,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:29:59,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:29:59,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:29:59,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:29:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:29:59,178 INFO L87 Difference]: Start difference. First operand 4993 states and 7091 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 09:29:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:29:59,425 INFO L93 Difference]: Finished difference Result 4999 states and 7096 transitions. [2021-11-17 09:29:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:29:59,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-11-17 09:29:59,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:29:59,448 INFO L225 Difference]: With dead ends: 4999 [2021-11-17 09:29:59,448 INFO L226 Difference]: Without dead ends: 4997 [2021-11-17 09:29:59,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:29:59,452 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7008 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:29:59,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7008 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:29:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2021-11-17 09:29:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4997. [2021-11-17 09:29:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4997 states, 3503 states have (on average 1.323151584356266) internal successors, (4635), 3579 states have internal predecessors, (4635), 1231 states have call successors, (1231), 261 states have call predecessors, (1231), 260 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:29:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 7094 transitions. [2021-11-17 09:29:59,654 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 7094 transitions. Word has length 101 [2021-11-17 09:29:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:29:59,655 INFO L470 AbstractCegarLoop]: Abstraction has 4997 states and 7094 transitions. [2021-11-17 09:29:59,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 09:29:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 7094 transitions. [2021-11-17 09:29:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-17 09:29:59,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:29:59,657 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:29:59,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 09:29:59,657 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:29:59,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:29:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1303359593, now seen corresponding path program 1 times [2021-11-17 09:29:59,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:29:59,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108726500] [2021-11-17 09:29:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:29:59,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:29:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:29:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:29:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:29:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:29:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 09:30:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:30:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:30:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:30:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:30:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:30:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:30:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:30:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:30:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:30:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,093 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-17 09:30:00,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:00,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108726500] [2021-11-17 09:30:00,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108726500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:00,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:00,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:00,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600929121] [2021-11-17 09:30:00,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:00,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:00,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:00,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:00,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:00,096 INFO L87 Difference]: Start difference. First operand 4997 states and 7094 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 09:30:00,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:00,348 INFO L93 Difference]: Finished difference Result 5003 states and 7099 transitions. [2021-11-17 09:30:00,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:00,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2021-11-17 09:30:00,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:00,369 INFO L225 Difference]: With dead ends: 5003 [2021-11-17 09:30:00,370 INFO L226 Difference]: Without dead ends: 5001 [2021-11-17 09:30:00,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:00,373 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7007 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:00,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7007 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:00,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5001 states. [2021-11-17 09:30:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5001 to 5001. [2021-11-17 09:30:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5001 states, 3506 states have (on average 1.322875071306332) internal successors, (4638), 3582 states have internal predecessors, (4638), 1231 states have call successors, (1231), 262 states have call predecessors, (1231), 261 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:30:00,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 7097 transitions. [2021-11-17 09:30:00,574 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 7097 transitions. Word has length 106 [2021-11-17 09:30:00,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:00,575 INFO L470 AbstractCegarLoop]: Abstraction has 5001 states and 7097 transitions. [2021-11-17 09:30:00,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 09:30:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 7097 transitions. [2021-11-17 09:30:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-17 09:30:00,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:00,578 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:00,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 09:30:00,579 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:00,580 INFO L85 PathProgramCache]: Analyzing trace with hash -901476771, now seen corresponding path program 1 times [2021-11-17 09:30:00,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:00,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612874533] [2021-11-17 09:30:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:00,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:30:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:30:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:30:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:30:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:30:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:30:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:30:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 09:30:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 09:30:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 09:30:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-17 09:30:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 09:30:00,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:00,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612874533] [2021-11-17 09:30:00,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612874533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:00,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:00,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:00,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069802645] [2021-11-17 09:30:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:00,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:00,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:00,979 INFO L87 Difference]: Start difference. First operand 5001 states and 7097 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 09:30:01,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:01,262 INFO L93 Difference]: Finished difference Result 5007 states and 7102 transitions. [2021-11-17 09:30:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2021-11-17 09:30:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:01,287 INFO L225 Difference]: With dead ends: 5007 [2021-11-17 09:30:01,287 INFO L226 Difference]: Without dead ends: 5005 [2021-11-17 09:30:01,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:01,292 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7011 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7016 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:01,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7016 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:01,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2021-11-17 09:30:01,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 5005. [2021-11-17 09:30:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5005 states, 3509 states have (on average 1.322599031062981) internal successors, (4641), 3585 states have internal predecessors, (4641), 1231 states have call successors, (1231), 263 states have call predecessors, (1231), 262 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:30:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 7100 transitions. [2021-11-17 09:30:01,581 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 7100 transitions. Word has length 98 [2021-11-17 09:30:01,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:01,581 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 7100 transitions. [2021-11-17 09:30:01,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 09:30:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 7100 transitions. [2021-11-17 09:30:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-17 09:30:01,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:01,583 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:01,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 09:30:01,584 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:01,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:01,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1448389289, now seen corresponding path program 1 times [2021-11-17 09:30:01,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:01,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593656597] [2021-11-17 09:30:01,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:01,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:30:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 09:30:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:30:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:30:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:30:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:30:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:30:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:30:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:30:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:30:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:30:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:30:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:30:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-17 09:30:02,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:02,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593656597] [2021-11-17 09:30:02,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593656597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:02,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:02,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:02,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768518972] [2021-11-17 09:30:02,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:02,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:02,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:02,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:02,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:02,034 INFO L87 Difference]: Start difference. First operand 5005 states and 7100 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 09:30:02,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:02,281 INFO L93 Difference]: Finished difference Result 5011 states and 7105 transitions. [2021-11-17 09:30:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:02,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 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 116 [2021-11-17 09:30:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:02,302 INFO L225 Difference]: With dead ends: 5011 [2021-11-17 09:30:02,302 INFO L226 Difference]: Without dead ends: 5009 [2021-11-17 09:30:02,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:02,306 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7005 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:02,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7005 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:02,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5009 states. [2021-11-17 09:30:02,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5009 to 5009. [2021-11-17 09:30:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5009 states, 3512 states have (on average 1.3223234624145785) internal successors, (4644), 3588 states have internal predecessors, (4644), 1231 states have call successors, (1231), 264 states have call predecessors, (1231), 263 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:30:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 7103 transitions. [2021-11-17 09:30:02,527 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 7103 transitions. Word has length 116 [2021-11-17 09:30:02,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:02,527 INFO L470 AbstractCegarLoop]: Abstraction has 5009 states and 7103 transitions. [2021-11-17 09:30:02,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 09:30:02,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 7103 transitions. [2021-11-17 09:30:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-17 09:30:02,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:02,530 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:02,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 09:30:02,530 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:02,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash -543442425, now seen corresponding path program 1 times [2021-11-17 09:30:02,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:02,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542411232] [2021-11-17 09:30:02,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:02,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:30:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 09:30:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:30:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:30:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:30:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:30:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:30:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:30:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:30:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:30:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:30:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:30:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:30:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:30:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,020 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-17 09:30:03,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:03,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542411232] [2021-11-17 09:30:03,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542411232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:03,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:03,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:03,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615368184] [2021-11-17 09:30:03,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:03,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:03,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:03,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:03,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:03,023 INFO L87 Difference]: Start difference. First operand 5009 states and 7103 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 09:30:03,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:03,281 INFO L93 Difference]: Finished difference Result 5015 states and 7108 transitions. [2021-11-17 09:30:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:03,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2021-11-17 09:30:03,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:03,305 INFO L225 Difference]: With dead ends: 5015 [2021-11-17 09:30:03,305 INFO L226 Difference]: Without dead ends: 5013 [2021-11-17 09:30:03,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:03,311 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7004 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:03,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7004 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:03,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2021-11-17 09:30:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 5013. [2021-11-17 09:30:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5013 states, 3515 states have (on average 1.3220483641536274) internal successors, (4647), 3591 states have internal predecessors, (4647), 1231 states have call successors, (1231), 265 states have call predecessors, (1231), 264 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:30:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 7106 transitions. [2021-11-17 09:30:03,545 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 7106 transitions. Word has length 121 [2021-11-17 09:30:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:03,545 INFO L470 AbstractCegarLoop]: Abstraction has 5013 states and 7106 transitions. [2021-11-17 09:30:03,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 09:30:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 7106 transitions. [2021-11-17 09:30:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-17 09:30:03,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:03,548 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:03,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 09:30:03,548 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:03,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1329865961, now seen corresponding path program 1 times [2021-11-17 09:30:03,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:03,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232184849] [2021-11-17 09:30:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:03,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:30:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 09:30:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:30:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:30:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:30:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:30:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:30:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:30:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:30:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:30:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:30:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:30:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:30:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:30:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 09:30:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-17 09:30:04,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:04,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232184849] [2021-11-17 09:30:04,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232184849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:04,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:04,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:04,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589145189] [2021-11-17 09:30:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:04,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:04,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:04,002 INFO L87 Difference]: Start difference. First operand 5013 states and 7106 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 09:30:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:04,280 INFO L93 Difference]: Finished difference Result 5019 states and 7111 transitions. [2021-11-17 09:30:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 126 [2021-11-17 09:30:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:04,301 INFO L225 Difference]: With dead ends: 5019 [2021-11-17 09:30:04,302 INFO L226 Difference]: Without dead ends: 5017 [2021-11-17 09:30:04,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:04,305 INFO L933 BasicCegarLoop]: 7043 mSDtfsCounter, 7001 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7003 SdHoareTripleChecker+Valid, 21106 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:04,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7003 Valid, 21106 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2021-11-17 09:30:04,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 5017. [2021-11-17 09:30:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 3518 states have (on average 1.3217737350767482) internal successors, (4650), 3594 states have internal predecessors, (4650), 1231 states have call successors, (1231), 266 states have call predecessors, (1231), 265 states have return successors, (1228), 1209 states have call predecessors, (1228), 1228 states have call successors, (1228) [2021-11-17 09:30:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 7109 transitions. [2021-11-17 09:30:04,629 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 7109 transitions. Word has length 126 [2021-11-17 09:30:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:04,629 INFO L470 AbstractCegarLoop]: Abstraction has 5017 states and 7109 transitions. [2021-11-17 09:30:04,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 09:30:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 7109 transitions. [2021-11-17 09:30:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-17 09:30:04,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:04,632 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:04,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 09:30:04,632 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 62302941, now seen corresponding path program 1 times [2021-11-17 09:30:04,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:04,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469539523] [2021-11-17 09:30:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:04,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:30:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 09:30:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:30:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 09:30:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:30:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:30:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:30:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 09:30:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 09:30:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 09:30:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-17 09:30:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 09:30:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 09:30:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:30:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 09:30:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-17 09:30:05,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:05,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469539523] [2021-11-17 09:30:05,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469539523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:05,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:05,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:05,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817296865] [2021-11-17 09:30:05,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:05,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:05,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:05,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:05,045 INFO L87 Difference]: Start difference. First operand 5017 states and 7109 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 09:30:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:05,320 INFO L93 Difference]: Finished difference Result 5111 states and 7222 transitions. [2021-11-17 09:30:05,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:05,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2021-11-17 09:30:05,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:05,342 INFO L225 Difference]: With dead ends: 5111 [2021-11-17 09:30:05,342 INFO L226 Difference]: Without dead ends: 5107 [2021-11-17 09:30:05,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:05,347 INFO L933 BasicCegarLoop]: 7064 mSDtfsCounter, 6933 mSDsluCounter, 14296 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6934 SdHoareTripleChecker+Valid, 21360 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:05,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6934 Valid, 21360 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2021-11-17 09:30:05,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 5105. [2021-11-17 09:30:05,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 3583 states have (on average 1.3206809935807982) internal successors, (4732), 3658 states have internal predecessors, (4732), 1244 states have call successors, (1244), 277 states have call predecessors, (1244), 275 states have return successors, (1241), 1222 states have call predecessors, (1241), 1241 states have call successors, (1241) [2021-11-17 09:30:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 7217 transitions. [2021-11-17 09:30:05,572 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 7217 transitions. Word has length 118 [2021-11-17 09:30:05,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:05,573 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 7217 transitions. [2021-11-17 09:30:05,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 09:30:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 7217 transitions. [2021-11-17 09:30:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-17 09:30:05,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:05,576 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:05,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 09:30:05,577 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:05,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:05,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1029578537, now seen corresponding path program 1 times [2021-11-17 09:30:05,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:05,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288879886] [2021-11-17 09:30:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:05,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:30:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:30:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 09:30:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 09:30:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:30:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 09:30:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:30:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 09:30:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 09:30:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:30:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:30:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 09:30:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 09:30:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 09:30:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:30:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 09:30:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 09:30:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:30:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2021-11-17 09:30:06,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:06,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288879886] [2021-11-17 09:30:06,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288879886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:06,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:06,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:30:06,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082585663] [2021-11-17 09:30:06,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:06,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:30:06,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:30:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:30:06,049 INFO L87 Difference]: Start difference. First operand 5105 states and 7217 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 09:30:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:30:06,374 INFO L93 Difference]: Finished difference Result 5105 states and 7217 transitions. [2021-11-17 09:30:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:30:06,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 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 136 [2021-11-17 09:30:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:30:06,395 INFO L225 Difference]: With dead ends: 5105 [2021-11-17 09:30:06,395 INFO L226 Difference]: Without dead ends: 4960 [2021-11-17 09:30:06,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 09:30:06,403 INFO L933 BasicCegarLoop]: 7041 mSDtfsCounter, 6997 mSDsluCounter, 14062 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6997 SdHoareTripleChecker+Valid, 21103 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:30:06,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6997 Valid, 21103 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:30:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4960 states. [2021-11-17 09:30:06,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4960 to 4960. [2021-11-17 09:30:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4960 states, 3488 states have (on average 1.3271215596330275) internal successors, (4629), 3561 states have internal predecessors, (4629), 1210 states have call successors, (1210), 260 states have call predecessors, (1210), 260 states have return successors, (1210), 1191 states have call predecessors, (1210), 1210 states have call successors, (1210) [2021-11-17 09:30:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4960 states to 4960 states and 7049 transitions. [2021-11-17 09:30:06,659 INFO L78 Accepts]: Start accepts. Automaton has 4960 states and 7049 transitions. Word has length 136 [2021-11-17 09:30:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:30:06,659 INFO L470 AbstractCegarLoop]: Abstraction has 4960 states and 7049 transitions. [2021-11-17 09:30:06,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 09:30:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4960 states and 7049 transitions. [2021-11-17 09:30:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-17 09:30:06,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:30:06,674 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:30:06,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 09:30:06,674 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:30:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:30:06,675 INFO L85 PathProgramCache]: Analyzing trace with hash -404474920, now seen corresponding path program 1 times [2021-11-17 09:30:06,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:30:06,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110498319] [2021-11-17 09:30:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:30:06,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:30:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:30:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:30:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:30:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:30:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:30:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:30:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:30:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:30:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:30:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:30:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:30:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:30:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:30:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:30:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:30:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:30:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:30:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:30:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:30:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:30:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:30:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:30:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:30:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:30:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:30:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 09:30:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:30:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:30:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:30:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:30:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 09:30:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 09:30:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:30:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:30:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:30:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 09:30:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:30:07,618 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:30:07,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:30:07,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110498319] [2021-11-17 09:30:07,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110498319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:30:07,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:30:07,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 09:30:07,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749471773] [2021-11-17 09:30:07,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:30:07,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 09:30:07,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:30:07,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 09:30:07,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 09:30:07,622 INFO L87 Difference]: Start difference. First operand 4960 states and 7049 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 09:30:09,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:25,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:29,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:30,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:33,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:42,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:44,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:48,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:51,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:54,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:56,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:30:59,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:01,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:31:06,785 INFO L93 Difference]: Finished difference Result 11458 states and 16931 transitions. [2021-11-17 09:31:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 09:31:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 310 [2021-11-17 09:31:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:31:06,820 INFO L225 Difference]: With dead ends: 11458 [2021-11-17 09:31:06,820 INFO L226 Difference]: Without dead ends: 6515 [2021-11-17 09:31:06,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-17 09:31:06,843 INFO L933 BasicCegarLoop]: 6360 mSDtfsCounter, 3250 mSDsluCounter, 22640 mSDsCounter, 0 mSdLazyCounter, 19178 mSolverCounterSat, 1761 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 29000 SdHoareTripleChecker+Invalid, 20948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1761 IncrementalHoareTripleChecker+Valid, 19178 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.2s IncrementalHoareTripleChecker+Time [2021-11-17 09:31:06,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3947 Valid, 29000 Invalid, 20948 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1761 Valid, 19178 Invalid, 9 Unknown, 0 Unchecked, 58.2s Time] [2021-11-17 09:31:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2021-11-17 09:31:07,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 4968. [2021-11-17 09:31:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4968 states, 3494 states have (on average 1.3265598168288495) internal successors, (4635), 3567 states have internal predecessors, (4635), 1210 states have call successors, (1210), 260 states have call predecessors, (1210), 262 states have return successors, (1213), 1193 states have call predecessors, (1213), 1210 states have call successors, (1213) [2021-11-17 09:31:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 7058 transitions. [2021-11-17 09:31:07,183 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 7058 transitions. Word has length 310 [2021-11-17 09:31:07,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:31:07,184 INFO L470 AbstractCegarLoop]: Abstraction has 4968 states and 7058 transitions. [2021-11-17 09:31:07,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 09:31:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 7058 transitions. [2021-11-17 09:31:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-17 09:31:07,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:31:07,200 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:31:07,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 09:31:07,200 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:31:07,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:31:07,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1775406493, now seen corresponding path program 1 times [2021-11-17 09:31:07,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:31:07,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439656963] [2021-11-17 09:31:07,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:31:07,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:31:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:31:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:31:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:31:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:31:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:31:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:31:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:31:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:31:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:31:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:31:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:31:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:31:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:31:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:31:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:31:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:31:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:31:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:31:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:31:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:31:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:31:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:31:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:31:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:31:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:31:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:31:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:31:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:31:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:31:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:31:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:07,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:31:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:31:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 09:31:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 09:31:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:31:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:31:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:31:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 09:31:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:31:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:31:08,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:31:08,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439656963] [2021-11-17 09:31:08,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439656963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:31:08,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:31:08,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 09:31:08,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191275420] [2021-11-17 09:31:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:31:08,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 09:31:08,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:31:08,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 09:31:08,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:31:08,064 INFO L87 Difference]: Start difference. First operand 4968 states and 7058 transitions. Second operand has 10 states, 9 states have (on average 15.444444444444445) internal successors, (139), 6 states have internal predecessors, (139), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:31:10,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:24,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:26,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:31,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:39,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:41,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:43,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:46,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:48,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:51,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:53,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:31:56,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:00,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:32:00,666 INFO L93 Difference]: Finished difference Result 11481 states and 16859 transitions. [2021-11-17 09:32:00,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:32:00,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.444444444444445) internal successors, (139), 6 states have internal predecessors, (139), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 316 [2021-11-17 09:32:00,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:32:00,707 INFO L225 Difference]: With dead ends: 11481 [2021-11-17 09:32:00,708 INFO L226 Difference]: Without dead ends: 6530 [2021-11-17 09:32:00,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-17 09:32:00,731 INFO L933 BasicCegarLoop]: 6284 mSDtfsCounter, 4884 mSDsluCounter, 26084 mSDsCounter, 0 mSdLazyCounter, 18030 mSolverCounterSat, 3705 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 32368 SdHoareTripleChecker+Invalid, 21745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3705 IncrementalHoareTripleChecker+Valid, 18030 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.6s IncrementalHoareTripleChecker+Time [2021-11-17 09:32:00,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5578 Valid, 32368 Invalid, 21745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3705 Valid, 18030 Invalid, 10 Unknown, 0 Unchecked, 51.6s Time] [2021-11-17 09:32:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6530 states. [2021-11-17 09:32:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6530 to 4984. [2021-11-17 09:32:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 3504 states have (on average 1.3261986301369864) internal successors, (4647), 3577 states have internal predecessors, (4647), 1214 states have call successors, (1214), 261 states have call predecessors, (1214), 264 states have return successors, (1220), 1198 states have call predecessors, (1220), 1214 states have call successors, (1220) [2021-11-17 09:32:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 7081 transitions. [2021-11-17 09:32:01,048 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 7081 transitions. Word has length 316 [2021-11-17 09:32:01,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:32:01,049 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 7081 transitions. [2021-11-17 09:32:01,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.444444444444445) internal successors, (139), 6 states have internal predecessors, (139), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:32:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 7081 transitions. [2021-11-17 09:32:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-17 09:32:01,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:32:01,066 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:32:01,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 09:32:01,066 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:32:01,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:32:01,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1348946501, now seen corresponding path program 1 times [2021-11-17 09:32:01,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:32:01,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67982168] [2021-11-17 09:32:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:32:01,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:32:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:32:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:32:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:32:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:32:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:32:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:32:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:32:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:32:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:32:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:32:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:32:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:32:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:32:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:32:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:32:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:32:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:32:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:32:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:32:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 09:32:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 09:32:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 09:32:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 09:32:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 09:32:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 09:32:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 09:32:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:32:01,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:32:01,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67982168] [2021-11-17 09:32:01,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67982168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:32:01,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:32:01,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 09:32:01,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93733580] [2021-11-17 09:32:01,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:32:01,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 09:32:01,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:32:01,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 09:32:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:32:01,809 INFO L87 Difference]: Start difference. First operand 4984 states and 7081 transitions. Second operand has 10 states, 9 states have (on average 15.555555555555555) internal successors, (140), 6 states have internal predecessors, (140), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:32:04,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:06,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:18,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:22,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:30,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:32,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:35,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:37,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:40,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:44,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:32:44,721 INFO L93 Difference]: Finished difference Result 11512 states and 16905 transitions. [2021-11-17 09:32:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:32:44,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.555555555555555) internal successors, (140), 6 states have internal predecessors, (140), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 317 [2021-11-17 09:32:44,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:32:44,759 INFO L225 Difference]: With dead ends: 11512 [2021-11-17 09:32:44,760 INFO L226 Difference]: Without dead ends: 6535 [2021-11-17 09:32:44,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-17 09:32:44,780 INFO L933 BasicCegarLoop]: 6342 mSDtfsCounter, 6490 mSDsluCounter, 24225 mSDsCounter, 0 mSdLazyCounter, 15459 mSolverCounterSat, 5585 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7183 SdHoareTripleChecker+Valid, 30567 SdHoareTripleChecker+Invalid, 21052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5585 IncrementalHoareTripleChecker+Valid, 15459 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:32:44,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7183 Valid, 30567 Invalid, 21052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5585 Valid, 15459 Invalid, 8 Unknown, 0 Unchecked, 42.0s Time] [2021-11-17 09:32:44,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2021-11-17 09:32:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 4984. [2021-11-17 09:32:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 3504 states have (on average 1.3261986301369864) internal successors, (4647), 3577 states have internal predecessors, (4647), 1214 states have call successors, (1214), 261 states have call predecessors, (1214), 264 states have return successors, (1220), 1198 states have call predecessors, (1220), 1214 states have call successors, (1220) [2021-11-17 09:32:45,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 7081 transitions. [2021-11-17 09:32:45,104 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 7081 transitions. Word has length 317 [2021-11-17 09:32:45,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:32:45,105 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 7081 transitions. [2021-11-17 09:32:45,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.555555555555555) internal successors, (140), 6 states have internal predecessors, (140), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:32:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 7081 transitions. [2021-11-17 09:32:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-17 09:32:45,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:32:45,121 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:32:45,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 09:32:45,121 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:32:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:32:45,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1086135202, now seen corresponding path program 1 times [2021-11-17 09:32:45,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:32:45,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729437359] [2021-11-17 09:32:45,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:32:45,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:32:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:32:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:32:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:32:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:32:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:32:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:32:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:32:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:32:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:32:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:32:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:32:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:32:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:32:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:32:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:32:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:32:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:32:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:32:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:32:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:32:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 09:32:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 09:32:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 09:32:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 09:32:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 09:32:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:32:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:32:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:32:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 09:32:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:32:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:32:45,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:32:45,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729437359] [2021-11-17 09:32:45,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729437359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:32:45,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:32:45,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 09:32:45,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836786098] [2021-11-17 09:32:45,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:32:45,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 09:32:45,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:32:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 09:32:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:32:45,954 INFO L87 Difference]: Start difference. First operand 4984 states and 7081 transitions. Second operand has 10 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:32:48,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:50,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:52,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:32:54,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:12,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:15,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:17,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:18,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:19,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:22,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:23,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:32,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:34,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:38,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:40,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:43,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:33:51,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:33:51,038 INFO L93 Difference]: Finished difference Result 11512 states and 16905 transitions. [2021-11-17 09:33:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:33:51,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 318 [2021-11-17 09:33:51,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:33:51,075 INFO L225 Difference]: With dead ends: 11512 [2021-11-17 09:33:51,076 INFO L226 Difference]: Without dead ends: 6535 [2021-11-17 09:33:51,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-17 09:33:51,096 INFO L933 BasicCegarLoop]: 6311 mSDtfsCounter, 3296 mSDsluCounter, 27269 mSDsCounter, 0 mSdLazyCounter, 21813 mSolverCounterSat, 1820 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 33580 SdHoareTripleChecker+Invalid, 23643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1820 IncrementalHoareTripleChecker+Valid, 21813 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:33:51,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 33580 Invalid, 23643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1820 Valid, 21813 Invalid, 10 Unknown, 0 Unchecked, 64.1s Time] [2021-11-17 09:33:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2021-11-17 09:33:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 4984. [2021-11-17 09:33:51,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 3504 states have (on average 1.3261986301369864) internal successors, (4647), 3577 states have internal predecessors, (4647), 1214 states have call successors, (1214), 261 states have call predecessors, (1214), 264 states have return successors, (1220), 1198 states have call predecessors, (1220), 1214 states have call successors, (1220) [2021-11-17 09:33:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 7081 transitions. [2021-11-17 09:33:51,509 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 7081 transitions. Word has length 318 [2021-11-17 09:33:51,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:33:51,509 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 7081 transitions. [2021-11-17 09:33:51,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:33:51,510 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 7081 transitions. [2021-11-17 09:33:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-17 09:33:51,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:33:51,524 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:33:51,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 09:33:51,525 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:33:51,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:33:51,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1099554076, now seen corresponding path program 1 times [2021-11-17 09:33:51,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:33:51,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704955344] [2021-11-17 09:33:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:33:51,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:33:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:33:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:33:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:33:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:33:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:33:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:33:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:33:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:51,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:33:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:33:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:33:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:33:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:33:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:33:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:33:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:33:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:33:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:33:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:33:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:33:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:33:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:33:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 09:33:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 09:33:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 09:33:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 09:33:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:33:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 09:33:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 09:33:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:33:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:33:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:33:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 09:33:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:33:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:33:52,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:33:52,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704955344] [2021-11-17 09:33:52,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704955344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:33:52,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:33:52,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 09:33:52,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318838354] [2021-11-17 09:33:52,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:33:52,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 09:33:52,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:33:52,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 09:33:52,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:33:52,335 INFO L87 Difference]: Start difference. First operand 4984 states and 7081 transitions. Second operand has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 6 states have internal predecessors, (142), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:33:55,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:13,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:17,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:19,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:21,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:22,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:30,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:32,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:35,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:38,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:41,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:43,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:46,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:48,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:50,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:53,139 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:55,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:57,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:34:59,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:06,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:35:06,645 INFO L93 Difference]: Finished difference Result 11512 states and 16905 transitions. [2021-11-17 09:35:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:35:06,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 6 states have internal predecessors, (142), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 319 [2021-11-17 09:35:06,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:35:06,680 INFO L225 Difference]: With dead ends: 11512 [2021-11-17 09:35:06,680 INFO L226 Difference]: Without dead ends: 6535 [2021-11-17 09:35:06,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-17 09:35:06,696 INFO L933 BasicCegarLoop]: 6297 mSDtfsCounter, 3295 mSDsluCounter, 27216 mSDsCounter, 0 mSdLazyCounter, 21794 mSolverCounterSat, 1809 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 33513 SdHoareTripleChecker+Invalid, 23617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1809 IncrementalHoareTripleChecker+Valid, 21794 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.3s IncrementalHoareTripleChecker+Time [2021-11-17 09:35:06,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3988 Valid, 33513 Invalid, 23617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1809 Valid, 21794 Invalid, 14 Unknown, 0 Unchecked, 73.3s Time] [2021-11-17 09:35:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2021-11-17 09:35:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 4984. [2021-11-17 09:35:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 3504 states have (on average 1.3261986301369864) internal successors, (4647), 3577 states have internal predecessors, (4647), 1214 states have call successors, (1214), 261 states have call predecessors, (1214), 264 states have return successors, (1220), 1198 states have call predecessors, (1220), 1214 states have call successors, (1220) [2021-11-17 09:35:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 7081 transitions. [2021-11-17 09:35:07,044 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 7081 transitions. Word has length 319 [2021-11-17 09:35:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:35:07,044 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 7081 transitions. [2021-11-17 09:35:07,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 6 states have internal predecessors, (142), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:35:07,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 7081 transitions. [2021-11-17 09:35:07,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-11-17 09:35:07,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:07,059 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:35:07,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 09:35:07,059 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:35:07,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:07,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1530048737, now seen corresponding path program 1 times [2021-11-17 09:35:07,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:07,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297527650] [2021-11-17 09:35:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:07,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:35:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:35:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:35:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:35:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:35:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:35:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:35:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:35:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:35:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:35:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:35:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:35:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:35:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:35:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:35:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:35:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:35:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:35:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 09:35:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:35:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 09:35:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 09:35:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 09:35:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:35:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 09:35:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 09:35:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:07,844 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:35:07,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:35:07,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297527650] [2021-11-17 09:35:07,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297527650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:35:07,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:35:07,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 09:35:07,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799947406] [2021-11-17 09:35:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:35:07,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 09:35:07,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:35:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 09:35:07,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:35:07,847 INFO L87 Difference]: Start difference. First operand 4984 states and 7081 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 6 states have internal predecessors, (143), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:35:09,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:23,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:29,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:36,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:38,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:42,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:44,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:35:49,201 INFO L93 Difference]: Finished difference Result 11512 states and 16905 transitions. [2021-11-17 09:35:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:35:49,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 6 states have internal predecessors, (143), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 320 [2021-11-17 09:35:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:35:49,234 INFO L225 Difference]: With dead ends: 11512 [2021-11-17 09:35:49,234 INFO L226 Difference]: Without dead ends: 6535 [2021-11-17 09:35:49,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-17 09:35:49,255 INFO L933 BasicCegarLoop]: 6345 mSDtfsCounter, 6487 mSDsluCounter, 24527 mSDsCounter, 0 mSdLazyCounter, 15701 mSolverCounterSat, 5555 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7180 SdHoareTripleChecker+Valid, 30872 SdHoareTripleChecker+Invalid, 21262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5555 IncrementalHoareTripleChecker+Valid, 15701 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2021-11-17 09:35:49,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7180 Valid, 30872 Invalid, 21262 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5555 Valid, 15701 Invalid, 6 Unknown, 0 Unchecked, 40.4s Time] [2021-11-17 09:35:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2021-11-17 09:35:49,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 4984. [2021-11-17 09:35:49,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 3504 states have (on average 1.3261986301369864) internal successors, (4647), 3577 states have internal predecessors, (4647), 1214 states have call successors, (1214), 261 states have call predecessors, (1214), 264 states have return successors, (1220), 1198 states have call predecessors, (1220), 1214 states have call successors, (1220) [2021-11-17 09:35:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 7081 transitions. [2021-11-17 09:35:49,594 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 7081 transitions. Word has length 320 [2021-11-17 09:35:49,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:35:49,595 INFO L470 AbstractCegarLoop]: Abstraction has 4984 states and 7081 transitions. [2021-11-17 09:35:49,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 6 states have internal predecessors, (143), 4 states have call successors, (37), 6 states have call predecessors, (37), 4 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-17 09:35:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 7081 transitions. [2021-11-17 09:35:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-17 09:35:49,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:35:49,610 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:35:49,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 09:35:49,611 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:35:49,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:35:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1062779554, now seen corresponding path program 1 times [2021-11-17 09:35:49,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:35:49,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310515147] [2021-11-17 09:35:49,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:35:49,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:35:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:35:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:35:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:35:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:35:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:35:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:35:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:35:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:35:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:35:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:35:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:35:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:35:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:35:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:35:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:35:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:35:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:35:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:35:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 09:35:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:35:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:35:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:35:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 09:35:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 09:35:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:35:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:35:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:35:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 09:35:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:35:50,355 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-17 09:35:50,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:35:50,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310515147] [2021-11-17 09:35:50,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310515147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:35:50,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:35:50,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 09:35:50,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872004279] [2021-11-17 09:35:50,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:35:50,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 09:35:50,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:35:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 09:35:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 09:35:50,358 INFO L87 Difference]: Start difference. First operand 4984 states and 7081 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-17 09:35:52,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:54,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:35:56,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:11,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:13,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:15,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:24,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:26,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:30,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:43,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:36:43,099 INFO L93 Difference]: Finished difference Result 9901 states and 14617 transitions. [2021-11-17 09:36:43,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 09:36:43,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 316 [2021-11-17 09:36:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:36:43,142 INFO L225 Difference]: With dead ends: 9901 [2021-11-17 09:36:43,143 INFO L226 Difference]: Without dead ends: 9899 [2021-11-17 09:36:43,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-11-17 09:36:43,151 INFO L933 BasicCegarLoop]: 6551 mSDtfsCounter, 14621 mSDsluCounter, 19356 mSDsCounter, 0 mSdLazyCounter, 17388 mSolverCounterSat, 7866 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15810 SdHoareTripleChecker+Valid, 25907 SdHoareTripleChecker+Invalid, 25261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7866 IncrementalHoareTripleChecker+Valid, 17388 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.4s IncrementalHoareTripleChecker+Time [2021-11-17 09:36:43,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15810 Valid, 25907 Invalid, 25261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7866 Valid, 17388 Invalid, 7 Unknown, 0 Unchecked, 51.4s Time] [2021-11-17 09:36:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2021-11-17 09:36:43,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 7707. [2021-11-17 09:36:43,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7707 states, 5451 states have (on average 1.3270959456980371) internal successors, (7234), 5573 states have internal predecessors, (7234), 1803 states have call successors, (1803), 419 states have call predecessors, (1803), 451 states have return successors, (1896), 1797 states have call predecessors, (1896), 1803 states have call successors, (1896) [2021-11-17 09:36:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 10933 transitions. [2021-11-17 09:36:43,660 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 10933 transitions. Word has length 316 [2021-11-17 09:36:43,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:36:43,661 INFO L470 AbstractCegarLoop]: Abstraction has 7707 states and 10933 transitions. [2021-11-17 09:36:43,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-17 09:36:43,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 10933 transitions. [2021-11-17 09:36:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-11-17 09:36:43,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:36:43,686 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:36:43,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 09:36:43,686 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:36:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:36:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash -75593278, now seen corresponding path program 1 times [2021-11-17 09:36:43,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:36:43,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429902528] [2021-11-17 09:36:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:36:43,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:36:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:36:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:36:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:36:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:36:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:36:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:36:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:36:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:36:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:36:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:36:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:36:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:36:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:36:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:36:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:36:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:36:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:36:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:36:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 09:36:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:36:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:36:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:36:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 09:36:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 09:36:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:36:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:36:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 09:36:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 09:36:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 09:36:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 09:36:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 09:36:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:36:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:36:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:36:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:36:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2021-11-17 09:36:44,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:36:44,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429902528] [2021-11-17 09:36:44,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429902528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:36:44,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:36:44,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 09:36:44,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893135154] [2021-11-17 09:36:44,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:36:44,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 09:36:44,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:36:44,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 09:36:44,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 09:36:44,403 INFO L87 Difference]: Start difference. First operand 7707 states and 10933 transitions. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (41), 2 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-17 09:36:46,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:48,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:36:50,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:05,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:07,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:09,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:11,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:13,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:14,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:15,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:23,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:25,538 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:29,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:31,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:34,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:36,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:39,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:43,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:46,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:48,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:37:52,816 INFO L93 Difference]: Finished difference Result 18410 states and 26869 transitions. [2021-11-17 09:37:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 09:37:52,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (41), 2 states have call predecessors, (41), 1 states have call successors, (41) Word has length 365 [2021-11-17 09:37:52,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:37:52,877 INFO L225 Difference]: With dead ends: 18410 [2021-11-17 09:37:52,877 INFO L226 Difference]: Without dead ends: 10720 [2021-11-17 09:37:52,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:37:52,911 INFO L933 BasicCegarLoop]: 7606 mSDtfsCounter, 5634 mSDsluCounter, 26293 mSDsCounter, 0 mSdLazyCounter, 16385 mSolverCounterSat, 3652 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6626 SdHoareTripleChecker+Valid, 33899 SdHoareTripleChecker+Invalid, 20052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3652 IncrementalHoareTripleChecker+Valid, 16385 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.3s IncrementalHoareTripleChecker+Time [2021-11-17 09:37:52,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6626 Valid, 33899 Invalid, 20052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3652 Valid, 16385 Invalid, 15 Unknown, 0 Unchecked, 67.3s Time] [2021-11-17 09:37:52,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2021-11-17 09:37:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 7711. [2021-11-17 09:37:53,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7711 states, 5454 states have (on average 1.326916024935827) internal successors, (7237), 5576 states have internal predecessors, (7237), 1803 states have call successors, (1803), 419 states have call predecessors, (1803), 452 states have return successors, (1897), 1798 states have call predecessors, (1897), 1803 states have call successors, (1897) [2021-11-17 09:37:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7711 states to 7711 states and 10937 transitions. [2021-11-17 09:37:53,700 INFO L78 Accepts]: Start accepts. Automaton has 7711 states and 10937 transitions. Word has length 365 [2021-11-17 09:37:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:37:53,701 INFO L470 AbstractCegarLoop]: Abstraction has 7711 states and 10937 transitions. [2021-11-17 09:37:53,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (41), 2 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-17 09:37:53,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7711 states and 10937 transitions. [2021-11-17 09:37:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-11-17 09:37:53,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:37:53,726 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:37:53,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 09:37:53,726 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:37:53,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:37:53,727 INFO L85 PathProgramCache]: Analyzing trace with hash -736797053, now seen corresponding path program 1 times [2021-11-17 09:37:53,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:37:53,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505416350] [2021-11-17 09:37:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:37:53,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:37:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:37:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:37:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:37:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:37:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:37:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:37:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:37:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:37:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:37:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:37:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:37:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:37:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:37:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:37:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:37:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:37:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:37:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:37:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 09:37:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:37:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:37:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:37:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 09:37:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 09:37:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:37:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:37:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 09:37:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 09:37:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 09:37:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 09:37:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 09:37:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:37:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 09:37:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:37:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-17 09:37:54,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:37:54,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505416350] [2021-11-17 09:37:54,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505416350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:37:54,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:37:54,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 09:37:54,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22945340] [2021-11-17 09:37:54,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:37:54,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 09:37:54,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:37:54,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 09:37:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 09:37:54,437 INFO L87 Difference]: Start difference. First operand 7711 states and 10937 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (39), 6 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 09:37:56,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:37:58,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:00,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:13,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:17,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:25,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:27,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:30,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:33,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:38:38,532 INFO L93 Difference]: Finished difference Result 9899 states and 14614 transitions. [2021-11-17 09:38:38,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 09:38:38,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (39), 6 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 365 [2021-11-17 09:38:38,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:38:38,570 INFO L225 Difference]: With dead ends: 9899 [2021-11-17 09:38:38,570 INFO L226 Difference]: Without dead ends: 9897 [2021-11-17 09:38:38,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-17 09:38:38,574 INFO L933 BasicCegarLoop]: 6401 mSDtfsCounter, 6598 mSDsluCounter, 19234 mSDsCounter, 0 mSdLazyCounter, 12879 mSolverCounterSat, 5635 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7302 SdHoareTripleChecker+Valid, 25635 SdHoareTripleChecker+Invalid, 18522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5635 IncrementalHoareTripleChecker+Valid, 12879 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:38:38,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7302 Valid, 25635 Invalid, 18522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5635 Valid, 12879 Invalid, 8 Unknown, 0 Unchecked, 43.1s Time] [2021-11-17 09:38:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9897 states. [2021-11-17 09:38:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9897 to 7711. [2021-11-17 09:38:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7711 states, 5454 states have (on average 1.3267326732673268) internal successors, (7236), 5576 states have internal predecessors, (7236), 1803 states have call successors, (1803), 419 states have call predecessors, (1803), 452 states have return successors, (1897), 1798 states have call predecessors, (1897), 1803 states have call successors, (1897) [2021-11-17 09:38:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7711 states to 7711 states and 10936 transitions. [2021-11-17 09:38:39,075 INFO L78 Accepts]: Start accepts. Automaton has 7711 states and 10936 transitions. Word has length 365 [2021-11-17 09:38:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:38:39,075 INFO L470 AbstractCegarLoop]: Abstraction has 7711 states and 10936 transitions. [2021-11-17 09:38:39,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (39), 6 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 09:38:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 7711 states and 10936 transitions. [2021-11-17 09:38:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-17 09:38:39,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:38:39,091 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:38:39,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 09:38:39,092 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:38:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:38:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash -608216713, now seen corresponding path program 1 times [2021-11-17 09:38:39,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:38:39,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616436147] [2021-11-17 09:38:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:39,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:38:39,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:38:39,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417023869] [2021-11-17 09:38:39,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:39,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:38:39,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:38:39,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:38:39,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 09:38:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:41,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 9507 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-17 09:38:41,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:38:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-17 09:38:42,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:38:42,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:38:42,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616436147] [2021-11-17 09:38:42,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:38:42,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417023869] [2021-11-17 09:38:42,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417023869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:38:42,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:38:42,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 09:38:42,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232542661] [2021-11-17 09:38:42,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:38:42,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 09:38:42,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:38:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 09:38:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-17 09:38:42,115 INFO L87 Difference]: Start difference. First operand 7711 states and 10936 transitions. Second operand has 11 states, 11 states have (on average 18.818181818181817) internal successors, (207), 8 states have internal predecessors, (207), 2 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (47), 5 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 09:38:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:38:42,770 INFO L93 Difference]: Finished difference Result 15451 states and 22056 transitions. [2021-11-17 09:38:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 09:38:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.818181818181817) internal successors, (207), 8 states have internal predecessors, (207), 2 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (47), 5 states have call predecessors, (47), 2 states have call successors, (47) Word has length 383 [2021-11-17 09:38:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:38:42,797 INFO L225 Difference]: With dead ends: 15451 [2021-11-17 09:38:42,797 INFO L226 Difference]: Without dead ends: 7757 [2021-11-17 09:38:42,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-17 09:38:42,825 INFO L933 BasicCegarLoop]: 6950 mSDtfsCounter, 8 mSDsluCounter, 62500 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 69450 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:38:42,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 69450 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:38:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7757 states. [2021-11-17 09:38:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7757 to 7747. [2021-11-17 09:38:43,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7747 states, 5481 states have (on average 1.3254880496259807) internal successors, (7265), 5603 states have internal predecessors, (7265), 1805 states have call successors, (1805), 419 states have call predecessors, (1805), 459 states have return successors, (1927), 1807 states have call predecessors, (1927), 1805 states have call successors, (1927) [2021-11-17 09:38:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7747 states to 7747 states and 10997 transitions. [2021-11-17 09:38:43,222 INFO L78 Accepts]: Start accepts. Automaton has 7747 states and 10997 transitions. Word has length 383 [2021-11-17 09:38:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:38:43,223 INFO L470 AbstractCegarLoop]: Abstraction has 7747 states and 10997 transitions. [2021-11-17 09:38:43,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.818181818181817) internal successors, (207), 8 states have internal predecessors, (207), 2 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (47), 5 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-17 09:38:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 7747 states and 10997 transitions. [2021-11-17 09:38:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2021-11-17 09:38:43,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:38:43,235 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:38:43,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 09:38:43,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-17 09:38:43,436 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:38:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:38:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1493697378, now seen corresponding path program 1 times [2021-11-17 09:38:43,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:38:43,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592906357] [2021-11-17 09:38:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:43,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:38:43,616 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:38:43,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291850779] [2021-11-17 09:38:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:43,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:38:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:38:43,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:38:43,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 09:38:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:45,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 9737 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 09:38:45,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:38:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-17 09:38:46,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:38:46,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:38:46,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592906357] [2021-11-17 09:38:46,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:38:46,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291850779] [2021-11-17 09:38:46,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291850779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:38:46,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:38:46,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:38:46,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803691601] [2021-11-17 09:38:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:38:46,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:38:46,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:38:46,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:38:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:38:46,402 INFO L87 Difference]: Start difference. First operand 7747 states and 10997 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-17 09:38:46,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:38:46,863 INFO L93 Difference]: Finished difference Result 15503 states and 22036 transitions. [2021-11-17 09:38:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 09:38:46,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 387 [2021-11-17 09:38:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:38:46,888 INFO L225 Difference]: With dead ends: 15503 [2021-11-17 09:38:46,889 INFO L226 Difference]: Without dead ends: 7773 [2021-11-17 09:38:46,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:38:46,908 INFO L933 BasicCegarLoop]: 6925 mSDtfsCounter, 25 mSDsluCounter, 13833 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 20758 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:38:46,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 20758 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:38:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7773 states. [2021-11-17 09:38:47,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7773 to 7751. [2021-11-17 09:38:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7751 states, 5485 states have (on average 1.325250683682771) internal successors, (7269), 5607 states have internal predecessors, (7269), 1805 states have call successors, (1805), 419 states have call predecessors, (1805), 459 states have return successors, (1927), 1807 states have call predecessors, (1927), 1805 states have call successors, (1927) [2021-11-17 09:38:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7751 states to 7751 states and 11001 transitions. [2021-11-17 09:38:47,388 INFO L78 Accepts]: Start accepts. Automaton has 7751 states and 11001 transitions. Word has length 387 [2021-11-17 09:38:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:38:47,389 INFO L470 AbstractCegarLoop]: Abstraction has 7751 states and 11001 transitions. [2021-11-17 09:38:47,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-17 09:38:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 7751 states and 11001 transitions. [2021-11-17 09:38:47,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-11-17 09:38:47,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:38:47,403 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:38:47,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 09:38:47,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-17 09:38:47,632 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:38:47,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:38:47,632 INFO L85 PathProgramCache]: Analyzing trace with hash 125115199, now seen corresponding path program 1 times [2021-11-17 09:38:47,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:38:47,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411958966] [2021-11-17 09:38:47,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:47,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:38:47,777 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:38:47,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550530375] [2021-11-17 09:38:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:47,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:38:47,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:38:47,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:38:47,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 09:38:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:49,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 9610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 09:38:49,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:38:50,180 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-11-17 09:38:50,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:38:50,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:38:50,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411958966] [2021-11-17 09:38:50,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:38:50,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550530375] [2021-11-17 09:38:50,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550530375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:38:50,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:38:50,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:38:50,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943007536] [2021-11-17 09:38:50,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:38:50,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:38:50,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:38:50,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:38:50,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:38:50,182 INFO L87 Difference]: Start difference. First operand 7751 states and 11001 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-17 09:38:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:38:50,539 INFO L93 Difference]: Finished difference Result 15515 states and 22048 transitions. [2021-11-17 09:38:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 09:38:50,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 406 [2021-11-17 09:38:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:38:50,564 INFO L225 Difference]: With dead ends: 15515 [2021-11-17 09:38:50,564 INFO L226 Difference]: Without dead ends: 7781 [2021-11-17 09:38:50,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:38:50,584 INFO L933 BasicCegarLoop]: 6925 mSDtfsCounter, 29 mSDsluCounter, 13833 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 20758 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:38:50,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 20758 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:38:50,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2021-11-17 09:38:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 7755. [2021-11-17 09:38:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5489 states have (on average 1.3250136636910184) internal successors, (7273), 5611 states have internal predecessors, (7273), 1805 states have call successors, (1805), 419 states have call predecessors, (1805), 459 states have return successors, (1927), 1807 states have call predecessors, (1927), 1805 states have call successors, (1927) [2021-11-17 09:38:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 11005 transitions. [2021-11-17 09:38:51,067 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 11005 transitions. Word has length 406 [2021-11-17 09:38:51,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:38:51,067 INFO L470 AbstractCegarLoop]: Abstraction has 7755 states and 11005 transitions. [2021-11-17 09:38:51,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-17 09:38:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 11005 transitions. [2021-11-17 09:38:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-11-17 09:38:51,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:38:51,079 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:38:51,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 09:38:51,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:38:51,280 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:38:51,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:38:51,281 INFO L85 PathProgramCache]: Analyzing trace with hash -283343210, now seen corresponding path program 1 times [2021-11-17 09:38:51,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:38:51,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665038527] [2021-11-17 09:38:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:51,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:38:51,393 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:38:51,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147462706] [2021-11-17 09:38:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:51,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:38:51,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:38:51,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:38:51,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 09:38:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:53,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 9807 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 09:38:53,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:38:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-17 09:38:53,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:38:53,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:38:53,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665038527] [2021-11-17 09:38:53,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:38:53,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147462706] [2021-11-17 09:38:53,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147462706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:38:53,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:38:53,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:38:53,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185919073] [2021-11-17 09:38:53,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:38:53,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:38:53,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:38:53,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:38:53,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:38:53,894 INFO L87 Difference]: Start difference. First operand 7755 states and 11005 transitions. Second operand has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 09:38:54,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:38:54,360 INFO L93 Difference]: Finished difference Result 15505 states and 22140 transitions. [2021-11-17 09:38:54,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:38:54,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) Word has length 429 [2021-11-17 09:38:54,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:38:54,384 INFO L225 Difference]: With dead ends: 15505 [2021-11-17 09:38:54,384 INFO L226 Difference]: Without dead ends: 7767 [2021-11-17 09:38:54,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 09:38:54,401 INFO L933 BasicCegarLoop]: 6919 mSDtfsCounter, 5 mSDsluCounter, 20744 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27663 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:38:54,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 27663 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:38:54,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2021-11-17 09:38:54,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7755. [2021-11-17 09:38:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5489 states have (on average 1.3246492985971945) internal successors, (7271), 5611 states have internal predecessors, (7271), 1805 states have call successors, (1805), 419 states have call predecessors, (1805), 459 states have return successors, (1927), 1807 states have call predecessors, (1927), 1805 states have call successors, (1927) [2021-11-17 09:38:54,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 11003 transitions. [2021-11-17 09:38:54,750 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 11003 transitions. Word has length 429 [2021-11-17 09:38:54,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:38:54,750 INFO L470 AbstractCegarLoop]: Abstraction has 7755 states and 11003 transitions. [2021-11-17 09:38:54,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 09:38:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 11003 transitions. [2021-11-17 09:38:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2021-11-17 09:38:54,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:38:54,767 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:38:54,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 09:38:54,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-17 09:38:54,981 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:38:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:38:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash -815681463, now seen corresponding path program 1 times [2021-11-17 09:38:54,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:38:54,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703089131] [2021-11-17 09:38:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:38:54,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:38:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:38:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:38:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:38:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:38:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:38:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:38:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:38:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:38:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:38:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:38:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:38:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:38:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:38:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:38:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:38:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:38:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 09:38:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 09:38:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:38:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 09:38:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 09:38:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:38:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 09:38:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:38:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:38:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:38:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 09:38:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 09:38:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:38:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:38:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 09:38:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:38:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:38:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:38:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:38:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 09:38:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 09:38:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:38:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 09:38:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-17 09:38:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:38:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 09:38:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-11-17 09:38:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 09:38:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-11-17 09:38:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2021-11-17 09:38:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-11-17 09:38:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 09:38:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-11-17 09:38:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-17 09:38:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-11-17 09:38:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2021-11-17 09:38:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:38:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:38:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:38:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2021-11-17 09:38:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:38:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-11-17 09:38:55,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:38:55,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703089131] [2021-11-17 09:38:55,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703089131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:38:55,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:38:55,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 09:38:55,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556881784] [2021-11-17 09:38:55,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:38:55,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 09:38:55,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:38:55,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 09:38:55,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 09:38:55,713 INFO L87 Difference]: Start difference. First operand 7755 states and 11003 transitions. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 3 states have internal predecessors, (247), 2 states have call successors, (66), 5 states have call predecessors, (66), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-17 09:38:57,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:38:59,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:10,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:13,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:20,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:22,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:25,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:28,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:30,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:34,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:39:34,237 INFO L93 Difference]: Finished difference Result 17703 states and 25848 transitions. [2021-11-17 09:39:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:39:34,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 3 states have internal predecessors, (247), 2 states have call successors, (66), 5 states have call predecessors, (66), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 525 [2021-11-17 09:39:34,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:39:34,277 INFO L225 Difference]: With dead ends: 17703 [2021-11-17 09:39:34,277 INFO L226 Difference]: Without dead ends: 9965 [2021-11-17 09:39:34,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 09:39:34,298 INFO L933 BasicCegarLoop]: 6329 mSDtfsCounter, 6443 mSDsluCounter, 9996 mSDsCounter, 0 mSdLazyCounter, 6976 mSolverCounterSat, 5552 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7142 SdHoareTripleChecker+Valid, 16325 SdHoareTripleChecker+Invalid, 12537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5552 IncrementalHoareTripleChecker+Valid, 6976 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-17 09:39:34,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7142 Valid, 16325 Invalid, 12537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5552 Valid, 6976 Invalid, 9 Unknown, 0 Unchecked, 37.6s Time] [2021-11-17 09:39:34,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2021-11-17 09:39:34,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 7757. [2021-11-17 09:39:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7757 states, 5491 states have (on average 1.324531050810417) internal successors, (7273), 5613 states have internal predecessors, (7273), 1805 states have call successors, (1805), 419 states have call predecessors, (1805), 459 states have return successors, (1927), 1807 states have call predecessors, (1927), 1805 states have call successors, (1927) [2021-11-17 09:39:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 11005 transitions. [2021-11-17 09:39:34,707 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 11005 transitions. Word has length 525 [2021-11-17 09:39:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:39:34,707 INFO L470 AbstractCegarLoop]: Abstraction has 7757 states and 11005 transitions. [2021-11-17 09:39:34,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 3 states have internal predecessors, (247), 2 states have call successors, (66), 5 states have call predecessors, (66), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-17 09:39:34,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 11005 transitions. [2021-11-17 09:39:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-17 09:39:34,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:39:34,723 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:39:34,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-17 09:39:34,724 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:39:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:39:34,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1150381609, now seen corresponding path program 1 times [2021-11-17 09:39:34,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:39:34,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435888062] [2021-11-17 09:39:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:39:34,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:39:34,942 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:39:34,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759560880] [2021-11-17 09:39:34,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:39:34,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:39:34,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:39:34,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:39:34,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 09:39:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:36,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 10087 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-17 09:39:36,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:39:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-17 09:39:37,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:39:37,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:39:37,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435888062] [2021-11-17 09:39:37,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:39:37,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759560880] [2021-11-17 09:39:37,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759560880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:39:37,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:39:37,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 09:39:37,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848879007] [2021-11-17 09:39:37,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:39:37,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 09:39:37,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:39:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 09:39:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-17 09:39:37,759 INFO L87 Difference]: Start difference. First operand 7757 states and 11005 transitions. Second operand has 12 states, 12 states have (on average 18.666666666666668) internal successors, (224), 9 states have internal predecessors, (224), 3 states have call successors, (59), 2 states have call predecessors, (59), 5 states have return successors, (54), 6 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-17 09:39:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:39:38,349 INFO L93 Difference]: Finished difference Result 15543 states and 22200 transitions. [2021-11-17 09:39:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 09:39:38,350 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.666666666666668) internal successors, (224), 9 states have internal predecessors, (224), 3 states have call successors, (59), 2 states have call predecessors, (59), 5 states have return successors, (54), 6 states have call predecessors, (54), 3 states have call successors, (54) Word has length 446 [2021-11-17 09:39:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:39:38,376 INFO L225 Difference]: With dead ends: 15543 [2021-11-17 09:39:38,376 INFO L226 Difference]: Without dead ends: 7803 [2021-11-17 09:39:38,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-17 09:39:38,397 INFO L933 BasicCegarLoop]: 6931 mSDtfsCounter, 43 mSDsluCounter, 69225 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 76156 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:39:38,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 76156 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:39:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7803 states. [2021-11-17 09:39:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7803 to 7773. [2021-11-17 09:39:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7773 states, 5503 states have (on average 1.324186807196075) internal successors, (7287), 5625 states have internal predecessors, (7287), 1807 states have call successors, (1807), 419 states have call predecessors, (1807), 461 states have return successors, (1956), 1811 states have call predecessors, (1956), 1807 states have call successors, (1956) [2021-11-17 09:39:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7773 states to 7773 states and 11050 transitions. [2021-11-17 09:39:38,840 INFO L78 Accepts]: Start accepts. Automaton has 7773 states and 11050 transitions. Word has length 446 [2021-11-17 09:39:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:39:38,841 INFO L470 AbstractCegarLoop]: Abstraction has 7773 states and 11050 transitions. [2021-11-17 09:39:38,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.666666666666668) internal successors, (224), 9 states have internal predecessors, (224), 3 states have call successors, (59), 2 states have call predecessors, (59), 5 states have return successors, (54), 6 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-17 09:39:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 7773 states and 11050 transitions. [2021-11-17 09:39:38,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2021-11-17 09:39:38,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:39:38,854 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:39:38,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-17 09:39:39,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:39:39,055 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:39:39,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:39:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1239358950, now seen corresponding path program 1 times [2021-11-17 09:39:39,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:39:39,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852324780] [2021-11-17 09:39:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:39:39,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:39:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:39:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:39:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:39:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:39:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:39:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:39:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:39:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:39:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:39:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:39:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 09:39:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 09:39:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:39:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 09:39:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 09:39:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:39:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 09:39:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:39:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:39:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:39:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 09:39:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 09:39:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:39:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:39:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 09:39:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:39:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:39:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:39:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:39:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 09:39:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:39:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 09:39:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-11-17 09:39:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:39:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 09:39:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-17 09:39:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:39:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-17 09:39:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2021-11-17 09:39:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-11-17 09:39:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-11-17 09:39:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-11-17 09:39:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2021-11-17 09:39:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-11-17 09:39:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-11-17 09:39:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2021-11-17 09:39:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2021-11-17 09:39:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2021-11-17 09:39:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2021-11-17 09:39:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:39:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:39:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:39:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2021-11-17 09:39:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:39:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2021-11-17 09:39:39,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:39:39,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852324780] [2021-11-17 09:39:39,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852324780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:39:39,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:39:39,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 09:39:39,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390449750] [2021-11-17 09:39:39,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:39:39,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 09:39:39,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:39:39,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 09:39:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 09:39:39,799 INFO L87 Difference]: Start difference. First operand 7773 states and 11050 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 3 states have internal predecessors, (273), 2 states have call successors, (69), 5 states have call predecessors, (69), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2021-11-17 09:39:41,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:43,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:54,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:39:55,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:01,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:03,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:07,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:09,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:11,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:13,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:40:18,850 INFO L93 Difference]: Finished difference Result 17754 states and 26373 transitions. [2021-11-17 09:40:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 09:40:18,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 3 states have internal predecessors, (273), 2 states have call successors, (69), 5 states have call predecessors, (69), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 559 [2021-11-17 09:40:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:40:18,884 INFO L225 Difference]: With dead ends: 17754 [2021-11-17 09:40:18,884 INFO L226 Difference]: Without dead ends: 9998 [2021-11-17 09:40:18,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 09:40:18,904 INFO L933 BasicCegarLoop]: 6376 mSDtfsCounter, 6450 mSDsluCounter, 10079 mSDsCounter, 0 mSdLazyCounter, 6975 mSolverCounterSat, 5588 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7177 SdHoareTripleChecker+Valid, 16455 SdHoareTripleChecker+Invalid, 12572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5588 IncrementalHoareTripleChecker+Valid, 6975 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:40:18,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7177 Valid, 16455 Invalid, 12572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5588 Valid, 6975 Invalid, 9 Unknown, 0 Unchecked, 38.1s Time] [2021-11-17 09:40:18,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2021-11-17 09:40:19,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 7776. [2021-11-17 09:40:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 5506 states have (on average 1.3240101707228478) internal successors, (7290), 5628 states have internal predecessors, (7290), 1807 states have call successors, (1807), 419 states have call predecessors, (1807), 461 states have return successors, (1956), 1811 states have call predecessors, (1956), 1807 states have call successors, (1956) [2021-11-17 09:40:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 11053 transitions. [2021-11-17 09:40:19,305 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 11053 transitions. Word has length 559 [2021-11-17 09:40:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:40:19,306 INFO L470 AbstractCegarLoop]: Abstraction has 7776 states and 11053 transitions. [2021-11-17 09:40:19,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 3 states have internal predecessors, (273), 2 states have call successors, (69), 5 states have call predecessors, (69), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2021-11-17 09:40:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 11053 transitions. [2021-11-17 09:40:19,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-11-17 09:40:19,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:40:19,326 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:40:19,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-17 09:40:19,326 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:40:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:40:19,327 INFO L85 PathProgramCache]: Analyzing trace with hash -279884717, now seen corresponding path program 1 times [2021-11-17 09:40:19,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:40:19,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847913393] [2021-11-17 09:40:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:40:19,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:40:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:40:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:40:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:40:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:40:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:40:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:40:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:40:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:40:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:40:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:40:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:40:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:40:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:40:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:40:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:40:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:40:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 09:40:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 09:40:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 09:40:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 09:40:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 09:40:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:40:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 09:40:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 09:40:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:40:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 09:40:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 09:40:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 09:40:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:40:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 09:40:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 09:40:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:40:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:40:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:40:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:40:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:40:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 09:40:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:40:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-17 09:40:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 09:40:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:40:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-17 09:40:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 09:40:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:40:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 09:40:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-11-17 09:40:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-11-17 09:40:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-17 09:40:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2021-11-17 09:40:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2021-11-17 09:40:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2021-11-17 09:40:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-11-17 09:40:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2021-11-17 09:40:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-11-17 09:40:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2021-11-17 09:40:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:40:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:40:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:40:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2021-11-17 09:40:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2021-11-17 09:40:20,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:40:20,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847913393] [2021-11-17 09:40:20,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847913393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:40:20,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:40:20,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 09:40:20,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188104743] [2021-11-17 09:40:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:40:20,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 09:40:20,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:40:20,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 09:40:20,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 09:40:20,187 INFO L87 Difference]: Start difference. First operand 7776 states and 11053 transitions. Second operand has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 4 states have internal predecessors, (264), 3 states have call successors, (69), 5 states have call predecessors, (69), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2021-11-17 09:40:22,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:34,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:36,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:39,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:43,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:46,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:49,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:52,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:40:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:40:56,960 INFO L93 Difference]: Finished difference Result 17783 states and 26023 transitions. [2021-11-17 09:40:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 09:40:56,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 4 states have internal predecessors, (264), 3 states have call successors, (69), 5 states have call predecessors, (69), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 551 [2021-11-17 09:40:56,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:40:56,998 INFO L225 Difference]: With dead ends: 17783 [2021-11-17 09:40:56,998 INFO L226 Difference]: Without dead ends: 10024 [2021-11-17 09:40:57,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:40:57,021 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 6509 mSDsluCounter, 15069 mSDsCounter, 0 mSdLazyCounter, 9387 mSolverCounterSat, 5581 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7205 SdHoareTripleChecker+Valid, 21395 SdHoareTripleChecker+Invalid, 14974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5581 IncrementalHoareTripleChecker+Valid, 9387 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2021-11-17 09:40:57,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7205 Valid, 21395 Invalid, 14974 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5581 Valid, 9387 Invalid, 6 Unknown, 0 Unchecked, 35.8s Time] [2021-11-17 09:40:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2021-11-17 09:40:57,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 7826. [2021-11-17 09:40:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7826 states, 5548 states have (on average 1.3266041816870944) internal successors, (7360), 5670 states have internal predecessors, (7360), 1813 states have call successors, (1813), 421 states have call predecessors, (1813), 463 states have return successors, (1937), 1817 states have call predecessors, (1937), 1813 states have call successors, (1937) [2021-11-17 09:40:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 11110 transitions. [2021-11-17 09:40:57,438 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 11110 transitions. Word has length 551 [2021-11-17 09:40:57,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:40:57,439 INFO L470 AbstractCegarLoop]: Abstraction has 7826 states and 11110 transitions. [2021-11-17 09:40:57,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.714285714285715) internal successors, (264), 4 states have internal predecessors, (264), 3 states have call successors, (69), 5 states have call predecessors, (69), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2021-11-17 09:40:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 11110 transitions. [2021-11-17 09:40:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-17 09:40:57,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:40:57,453 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:40:57,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-17 09:40:57,453 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:40:57,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:40:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1238295072, now seen corresponding path program 1 times [2021-11-17 09:40:57,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:40:57,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985063895] [2021-11-17 09:40:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:40:57,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:40:57,642 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:40:57,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80482447] [2021-11-17 09:40:57,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:40:57,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:40:57,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:40:57,651 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:40:57,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 09:40:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:40:59,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 10198 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 09:40:59,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-17 09:41:00,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:00,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:00,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985063895] [2021-11-17 09:41:00,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:00,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80482447] [2021-11-17 09:41:00,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80482447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:00,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:00,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-17 09:41:00,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248140622] [2021-11-17 09:41:00,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:00,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 09:41:00,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:00,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 09:41:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 09:41:00,552 INFO L87 Difference]: Start difference. First operand 7826 states and 11110 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 09:41:01,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:01,322 INFO L93 Difference]: Finished difference Result 23392 states and 33288 transitions. [2021-11-17 09:41:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 09:41:01,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 484 [2021-11-17 09:41:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:01,372 INFO L225 Difference]: With dead ends: 23392 [2021-11-17 09:41:01,372 INFO L226 Difference]: Without dead ends: 15583 [2021-11-17 09:41:01,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 09:41:01,393 INFO L933 BasicCegarLoop]: 9160 mSDtfsCounter, 6699 mSDsluCounter, 6872 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6699 SdHoareTripleChecker+Valid, 16032 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:01,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6699 Valid, 16032 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:41:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15583 states. [2021-11-17 09:41:02,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15583 to 15577. [2021-11-17 09:41:02,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15577 states, 11037 states have (on average 1.325903778200598) internal successors, (14634), 11279 states have internal predecessors, (14634), 3612 states have call successors, (3612), 842 states have call predecessors, (3612), 926 states have return successors, (3904), 3620 states have call predecessors, (3904), 3612 states have call successors, (3904) [2021-11-17 09:41:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15577 states to 15577 states and 22150 transitions. [2021-11-17 09:41:02,249 INFO L78 Accepts]: Start accepts. Automaton has 15577 states and 22150 transitions. Word has length 484 [2021-11-17 09:41:02,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:02,250 INFO L470 AbstractCegarLoop]: Abstraction has 15577 states and 22150 transitions. [2021-11-17 09:41:02,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 2 states have internal predecessors, (251), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 09:41:02,250 INFO L276 IsEmpty]: Start isEmpty. Operand 15577 states and 22150 transitions. [2021-11-17 09:41:02,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-11-17 09:41:02,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:02,272 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:02,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-17 09:41:02,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:02,474 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:02,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:02,475 INFO L85 PathProgramCache]: Analyzing trace with hash 925663137, now seen corresponding path program 1 times [2021-11-17 09:41:02,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:02,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117170487] [2021-11-17 09:41:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:02,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:02,596 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:02,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923383603] [2021-11-17 09:41:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:02,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:02,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:02,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:02,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 09:41:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:04,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 10094 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 09:41:04,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-17 09:41:05,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:05,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:05,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117170487] [2021-11-17 09:41:05,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:05,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923383603] [2021-11-17 09:41:05,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923383603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:05,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:05,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 09:41:05,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152288650] [2021-11-17 09:41:05,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:05,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 09:41:05,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:05,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 09:41:05,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 09:41:05,192 INFO L87 Difference]: Start difference. First operand 15577 states and 22150 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-17 09:41:07,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 09:41:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:08,553 INFO L93 Difference]: Finished difference Result 38894 states and 55500 transitions. [2021-11-17 09:41:08,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 09:41:08,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 493 [2021-11-17 09:41:08,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:08,665 INFO L225 Difference]: With dead ends: 38894 [2021-11-17 09:41:08,666 INFO L226 Difference]: Without dead ends: 23334 [2021-11-17 09:41:08,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 09:41:08,721 INFO L933 BasicCegarLoop]: 13779 mSDtfsCounter, 6871 mSDsluCounter, 6916 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6871 SdHoareTripleChecker+Valid, 20695 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:08,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6871 Valid, 20695 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 09:41:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23334 states. [2021-11-17 09:41:10,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23334 to 23328. [2021-11-17 09:41:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23328 states, 16526 states have (on average 1.325668643349873) internal successors, (21908), 16888 states have internal predecessors, (21908), 5411 states have call successors, (5411), 1263 states have call predecessors, (5411), 1389 states have return successors, (5915), 5423 states have call predecessors, (5915), 5411 states have call successors, (5915) [2021-11-17 09:41:10,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23328 states to 23328 states and 33234 transitions. [2021-11-17 09:41:10,195 INFO L78 Accepts]: Start accepts. Automaton has 23328 states and 33234 transitions. Word has length 493 [2021-11-17 09:41:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:10,195 INFO L470 AbstractCegarLoop]: Abstraction has 23328 states and 33234 transitions. [2021-11-17 09:41:10,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-17 09:41:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 23328 states and 33234 transitions. [2021-11-17 09:41:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-17 09:41:10,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:10,228 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:10,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-17 09:41:10,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:10,428 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:10,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:10,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1082052058, now seen corresponding path program 1 times [2021-11-17 09:41:10,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:10,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067428486] [2021-11-17 09:41:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:10,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:10,556 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:10,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515438460] [2021-11-17 09:41:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:10,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:10,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:10,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:10,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 09:41:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:12,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 10256 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 09:41:12,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-11-17 09:41:13,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:13,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:13,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067428486] [2021-11-17 09:41:13,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:13,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515438460] [2021-11-17 09:41:13,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515438460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:13,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:13,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 09:41:13,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117368289] [2021-11-17 09:41:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:13,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:41:13,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:41:13,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:41:13,183 INFO L87 Difference]: Start difference. First operand 23328 states and 33234 transitions. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-17 09:41:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:14,591 INFO L93 Difference]: Finished difference Result 46717 states and 67347 transitions. [2021-11-17 09:41:14,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:41:14,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) Word has length 480 [2021-11-17 09:41:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:14,680 INFO L225 Difference]: With dead ends: 46717 [2021-11-17 09:41:14,680 INFO L226 Difference]: Without dead ends: 23406 [2021-11-17 09:41:14,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:41:14,748 INFO L933 BasicCegarLoop]: 6928 mSDtfsCounter, 9 mSDsluCounter, 20768 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 27696 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:14,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 27696 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:41:14,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23406 states. [2021-11-17 09:41:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23406 to 23364. [2021-11-17 09:41:16,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23364 states, 16556 states have (on average 1.3250785213819762) internal successors, (21938), 16912 states have internal predecessors, (21938), 5411 states have call successors, (5411), 1263 states have call predecessors, (5411), 1395 states have return successors, (6059), 5435 states have call predecessors, (6059), 5411 states have call successors, (6059) [2021-11-17 09:41:16,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23364 states to 23364 states and 33408 transitions. [2021-11-17 09:41:16,103 INFO L78 Accepts]: Start accepts. Automaton has 23364 states and 33408 transitions. Word has length 480 [2021-11-17 09:41:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:16,103 INFO L470 AbstractCegarLoop]: Abstraction has 23364 states and 33408 transitions. [2021-11-17 09:41:16,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-17 09:41:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 23364 states and 33408 transitions. [2021-11-17 09:41:16,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2021-11-17 09:41:16,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:16,136 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:16,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 09:41:16,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-17 09:41:16,338 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:16,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:16,339 INFO L85 PathProgramCache]: Analyzing trace with hash -720694533, now seen corresponding path program 1 times [2021-11-17 09:41:16,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:16,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547532603] [2021-11-17 09:41:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:16,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:16,460 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:16,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79578081] [2021-11-17 09:41:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:16,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:16,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:16,462 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:16,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 09:41:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:18,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 10466 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-17 09:41:18,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2021-11-17 09:41:19,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:19,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:19,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547532603] [2021-11-17 09:41:19,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:19,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79578081] [2021-11-17 09:41:19,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79578081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:19,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:19,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-17 09:41:19,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136440351] [2021-11-17 09:41:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:19,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 09:41:19,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 09:41:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-11-17 09:41:19,760 INFO L87 Difference]: Start difference. First operand 23364 states and 33408 transitions. Second operand has 14 states, 14 states have (on average 21.785714285714285) internal successors, (305), 10 states have internal predecessors, (305), 3 states have call successors, (74), 2 states have call predecessors, (74), 6 states have return successors, (68), 7 states have call predecessors, (68), 3 states have call successors, (68) [2021-11-17 09:41:21,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:21,274 INFO L93 Difference]: Finished difference Result 46921 states and 67785 transitions. [2021-11-17 09:41:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 09:41:21,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.785714285714285) internal successors, (305), 10 states have internal predecessors, (305), 3 states have call successors, (74), 2 states have call predecessors, (74), 6 states have return successors, (68), 7 states have call predecessors, (68), 3 states have call successors, (68) Word has length 585 [2021-11-17 09:41:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:21,365 INFO L225 Difference]: With dead ends: 46921 [2021-11-17 09:41:21,365 INFO L226 Difference]: Without dead ends: 23574 [2021-11-17 09:41:21,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-17 09:41:21,434 INFO L933 BasicCegarLoop]: 6956 mSDtfsCounter, 46 mSDsluCounter, 83385 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 90341 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:21,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 90341 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:41:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23574 states. [2021-11-17 09:41:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23574 to 23406. [2021-11-17 09:41:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23406 states, 16586 states have (on average 1.3239479078741108) internal successors, (21959), 16948 states have internal predecessors, (21959), 5411 states have call successors, (5411), 1263 states have call predecessors, (5411), 1407 states have return successors, (6089), 5441 states have call predecessors, (6089), 5411 states have call successors, (6089) [2021-11-17 09:41:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23406 states to 23406 states and 33459 transitions. [2021-11-17 09:41:23,052 INFO L78 Accepts]: Start accepts. Automaton has 23406 states and 33459 transitions. Word has length 585 [2021-11-17 09:41:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:23,052 INFO L470 AbstractCegarLoop]: Abstraction has 23406 states and 33459 transitions. [2021-11-17 09:41:23,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.785714285714285) internal successors, (305), 10 states have internal predecessors, (305), 3 states have call successors, (74), 2 states have call predecessors, (74), 6 states have return successors, (68), 7 states have call predecessors, (68), 3 states have call successors, (68) [2021-11-17 09:41:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 23406 states and 33459 transitions. [2021-11-17 09:41:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2021-11-17 09:41:23,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:23,083 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:23,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-17 09:41:23,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-17 09:41:23,284 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash -529664118, now seen corresponding path program 1 times [2021-11-17 09:41:23,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:23,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961480329] [2021-11-17 09:41:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:23,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:23,399 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:23,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625740090] [2021-11-17 09:41:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:23,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:23,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:23,401 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:23,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-17 09:41:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:25,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 10376 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 09:41:25,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-17 09:41:26,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:26,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:26,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961480329] [2021-11-17 09:41:26,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:26,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625740090] [2021-11-17 09:41:26,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625740090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:26,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:26,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:41:26,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386425173] [2021-11-17 09:41:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:26,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:41:26,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:41:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:41:26,181 INFO L87 Difference]: Start difference. First operand 23406 states and 33459 transitions. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 4 states have call successors, (66), 2 states have call predecessors, (66), 3 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2021-11-17 09:41:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:27,729 INFO L93 Difference]: Finished difference Result 47077 states and 67923 transitions. [2021-11-17 09:41:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:41:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 4 states have call successors, (66), 2 states have call predecessors, (66), 3 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 516 [2021-11-17 09:41:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:27,834 INFO L225 Difference]: With dead ends: 47077 [2021-11-17 09:41:27,834 INFO L226 Difference]: Without dead ends: 23640 [2021-11-17 09:41:27,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:41:27,924 INFO L933 BasicCegarLoop]: 6948 mSDtfsCounter, 75 mSDsluCounter, 13735 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 20683 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:27,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 20683 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:41:27,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23640 states. [2021-11-17 09:41:29,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23640 to 23640. [2021-11-17 09:41:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23640 states, 16796 states have (on average 1.3234698737794712) internal successors, (22229), 17152 states have internal predecessors, (22229), 5429 states have call successors, (5429), 1269 states have call predecessors, (5429), 1413 states have return successors, (6113), 5465 states have call predecessors, (6113), 5429 states have call successors, (6113) [2021-11-17 09:41:29,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23640 states to 23640 states and 33771 transitions. [2021-11-17 09:41:29,543 INFO L78 Accepts]: Start accepts. Automaton has 23640 states and 33771 transitions. Word has length 516 [2021-11-17 09:41:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:29,544 INFO L470 AbstractCegarLoop]: Abstraction has 23640 states and 33771 transitions. [2021-11-17 09:41:29,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 4 states have call successors, (66), 2 states have call predecessors, (66), 3 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2021-11-17 09:41:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 23640 states and 33771 transitions. [2021-11-17 09:41:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-17 09:41:29,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:29,592 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:29,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-17 09:41:29,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-17 09:41:29,803 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:29,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:29,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1371852649, now seen corresponding path program 1 times [2021-11-17 09:41:29,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:29,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546995685] [2021-11-17 09:41:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:29,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:29,931 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:29,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210235744] [2021-11-17 09:41:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:29,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:29,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:29,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:29,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-17 09:41:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:31,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 10349 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-17 09:41:31,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2021-11-17 09:41:33,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:33,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:33,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546995685] [2021-11-17 09:41:33,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:33,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210235744] [2021-11-17 09:41:33,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210235744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:33,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:33,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:41:33,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830421785] [2021-11-17 09:41:33,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:33,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 09:41:33,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:33,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 09:41:33,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:41:33,237 INFO L87 Difference]: Start difference. First operand 23640 states and 33771 transitions. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 3 states have internal predecessors, (237), 1 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2021-11-17 09:41:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:34,789 INFO L93 Difference]: Finished difference Result 23640 states and 33771 transitions. [2021-11-17 09:41:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:41:34,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 3 states have internal predecessors, (237), 1 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 502 [2021-11-17 09:41:34,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:34,902 INFO L225 Difference]: With dead ends: 23640 [2021-11-17 09:41:34,902 INFO L226 Difference]: Without dead ends: 23638 [2021-11-17 09:41:34,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 09:41:34,917 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 6515 mSDsluCounter, 13903 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6516 SdHoareTripleChecker+Valid, 20820 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:34,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6516 Valid, 20820 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:41:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23638 states. [2021-11-17 09:41:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23638 to 23638. [2021-11-17 09:41:36,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23638 states, 16795 states have (on average 1.3231318844894313) internal successors, (22222), 17150 states have internal predecessors, (22222), 5429 states have call successors, (5429), 1269 states have call predecessors, (5429), 1413 states have return successors, (6113), 5465 states have call predecessors, (6113), 5429 states have call successors, (6113) [2021-11-17 09:41:36,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23638 states to 23638 states and 33764 transitions. [2021-11-17 09:41:36,268 INFO L78 Accepts]: Start accepts. Automaton has 23638 states and 33764 transitions. Word has length 502 [2021-11-17 09:41:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:36,269 INFO L470 AbstractCegarLoop]: Abstraction has 23638 states and 33764 transitions. [2021-11-17 09:41:36,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 3 states have internal predecessors, (237), 1 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2021-11-17 09:41:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 23638 states and 33764 transitions. [2021-11-17 09:41:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2021-11-17 09:41:36,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:36,313 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:36,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-17 09:41:36,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-17 09:41:36,523 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:36,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:36,523 INFO L85 PathProgramCache]: Analyzing trace with hash 969392477, now seen corresponding path program 1 times [2021-11-17 09:41:36,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:36,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975773335] [2021-11-17 09:41:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:36,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:36,644 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:36,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327646052] [2021-11-17 09:41:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:36,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:36,646 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:36,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-17 09:41:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:38,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 10955 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 09:41:38,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:39,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 558 proven. 0 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2021-11-17 09:41:39,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:39,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:39,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975773335] [2021-11-17 09:41:39,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:39,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327646052] [2021-11-17 09:41:39,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327646052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:39,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:39,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 09:41:39,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803273985] [2021-11-17 09:41:39,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:39,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 09:41:39,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:39,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 09:41:39,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 09:41:39,891 INFO L87 Difference]: Start difference. First operand 23638 states and 33764 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-17 09:41:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:41,455 INFO L93 Difference]: Finished difference Result 47265 states and 67710 transitions. [2021-11-17 09:41:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 09:41:41,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 734 [2021-11-17 09:41:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:41,560 INFO L225 Difference]: With dead ends: 47265 [2021-11-17 09:41:41,560 INFO L226 Difference]: Without dead ends: 23644 [2021-11-17 09:41:41,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 09:41:41,644 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 2 mSDsluCounter, 6906 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13823 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:41,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13823 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:41:41,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23644 states. [2021-11-17 09:41:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23644 to 23640. [2021-11-17 09:41:43,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23640 states, 16797 states have (on average 1.3230934095374174) internal successors, (22224), 17152 states have internal predecessors, (22224), 5429 states have call successors, (5429), 1269 states have call predecessors, (5429), 1413 states have return successors, (6113), 5465 states have call predecessors, (6113), 5429 states have call successors, (6113) [2021-11-17 09:41:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23640 states to 23640 states and 33766 transitions. [2021-11-17 09:41:43,113 INFO L78 Accepts]: Start accepts. Automaton has 23640 states and 33766 transitions. Word has length 734 [2021-11-17 09:41:43,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:43,113 INFO L470 AbstractCegarLoop]: Abstraction has 23640 states and 33766 transitions. [2021-11-17 09:41:43,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 2 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2021-11-17 09:41:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 23640 states and 33766 transitions. [2021-11-17 09:41:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2021-11-17 09:41:43,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:43,154 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:43,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-17 09:41:43,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-17 09:41:43,355 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:43,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:43,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1386878810, now seen corresponding path program 1 times [2021-11-17 09:41:43,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:43,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981604232] [2021-11-17 09:41:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:43,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:43,636 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 09:41:43,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158964810] [2021-11-17 09:41:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:43,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:43,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:43,637 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:43,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-17 09:41:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:45,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 11090 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 09:41:45,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:46,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 569 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2021-11-17 09:41:46,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:46,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:46,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981604232] [2021-11-17 09:41:46,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 09:41:46,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158964810] [2021-11-17 09:41:46,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158964810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:46,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:41:46,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:41:46,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308191314] [2021-11-17 09:41:46,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:46,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:41:46,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:46,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:41:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:41:46,775 INFO L87 Difference]: Start difference. First operand 23640 states and 33766 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-17 09:41:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:48,333 INFO L93 Difference]: Finished difference Result 47299 states and 67783 transitions. [2021-11-17 09:41:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 09:41:48,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 719 [2021-11-17 09:41:48,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:48,424 INFO L225 Difference]: With dead ends: 47299 [2021-11-17 09:41:48,425 INFO L226 Difference]: Without dead ends: 23676 [2021-11-17 09:41:48,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 716 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:41:48,497 INFO L933 BasicCegarLoop]: 6918 mSDtfsCounter, 7 mSDsluCounter, 13820 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 20738 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:48,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 20738 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 09:41:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23676 states. [2021-11-17 09:41:49,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23676 to 23660. [2021-11-17 09:41:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23660 states, 16813 states have (on average 1.3227859394516148) internal successors, (22240), 17170 states have internal predecessors, (22240), 5431 states have call successors, (5431), 1269 states have call predecessors, (5431), 1415 states have return successors, (6124), 5467 states have call predecessors, (6124), 5431 states have call successors, (6124) [2021-11-17 09:41:49,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23660 states to 23660 states and 33795 transitions. [2021-11-17 09:41:49,918 INFO L78 Accepts]: Start accepts. Automaton has 23660 states and 33795 transitions. Word has length 719 [2021-11-17 09:41:49,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:49,919 INFO L470 AbstractCegarLoop]: Abstraction has 23660 states and 33795 transitions. [2021-11-17 09:41:49,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 2 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-17 09:41:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23660 states and 33795 transitions. [2021-11-17 09:41:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2021-11-17 09:41:49,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:49,959 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 9, 9, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:49,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-17 09:41:50,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-11-17 09:41:50,163 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:50,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:50,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1847908122, now seen corresponding path program 1 times [2021-11-17 09:41:50,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:50,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125668502] [2021-11-17 09:41:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:50,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:41:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:41:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:41:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:41:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:41:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:41:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:41:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:41:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:41:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:41:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:41:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:41:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:41:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:41:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:41:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:41:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:41:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:41:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 09:41:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:41:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:41:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:41:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 09:41:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 09:41:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 09:41:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 09:41:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 09:41:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 09:41:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:41:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 09:41:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 09:41:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 09:41:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 09:41:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 09:41:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 09:41:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 09:41:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:41:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:41:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:41:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 09:41:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:50,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:41:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 09:41:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2021-11-17 09:41:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2021-11-17 09:41:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 09:41:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 09:41:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 09:41:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:41:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:41:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:41:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 09:41:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:41:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:41:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 09:41:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 09:41:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 712 [2021-11-17 09:41:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2021-11-17 09:41:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2021-11-17 09:41:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 731 [2021-11-17 09:41:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2021-11-17 09:41:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:41:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2021-11-17 09:41:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 810 [2021-11-17 09:41:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 822 [2021-11-17 09:41:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 827 [2021-11-17 09:41:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 833 [2021-11-17 09:41:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 839 [2021-11-17 09:41:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 844 [2021-11-17 09:41:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 851 [2021-11-17 09:41:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:41:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:41:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 8 proven. 50 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2021-11-17 09:41:51,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:51,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125668502] [2021-11-17 09:41:51,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125668502] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 09:41:51,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739821267] [2021-11-17 09:41:51,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:51,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:51,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:51,470 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:51,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-17 09:41:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:53,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 11477 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-17 09:41:53,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 09:41:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2021-11-17 09:41:54,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 09:41:54,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739821267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:41:54,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 09:41:54,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 23 [2021-11-17 09:41:54,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272151379] [2021-11-17 09:41:54,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:41:54,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 09:41:54,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:41:54,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 09:41:54,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-17 09:41:54,978 INFO L87 Difference]: Start difference. First operand 23660 states and 33795 transitions. Second operand has 12 states, 12 states have (on average 31.416666666666668) internal successors, (377), 9 states have internal predecessors, (377), 3 states have call successors, (107), 2 states have call predecessors, (107), 5 states have return successors, (104), 6 states have call predecessors, (104), 3 states have call successors, (104) [2021-11-17 09:41:56,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:41:56,547 INFO L93 Difference]: Finished difference Result 47498 states and 68172 transitions. [2021-11-17 09:41:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 09:41:56,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 31.416666666666668) internal successors, (377), 9 states have internal predecessors, (377), 3 states have call successors, (107), 2 states have call predecessors, (107), 5 states have return successors, (104), 6 states have call predecessors, (104), 3 states have call successors, (104) Word has length 876 [2021-11-17 09:41:56,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:41:56,756 INFO L225 Difference]: With dead ends: 47498 [2021-11-17 09:41:56,757 INFO L226 Difference]: Without dead ends: 23855 [2021-11-17 09:41:56,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1165 GetRequests, 1141 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-11-17 09:41:56,813 INFO L933 BasicCegarLoop]: 6927 mSDtfsCounter, 37 mSDsluCounter, 69195 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 76122 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:41:56,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 76122 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 09:41:56,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23855 states. [2021-11-17 09:41:58,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23855 to 23774. [2021-11-17 09:41:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23774 states, 16903 states have (on average 1.3217771993137313) internal successors, (22342), 17257 states have internal predecessors, (22342), 5437 states have call successors, (5437), 1269 states have call predecessors, (5437), 1433 states have return successors, (6178), 5494 states have call predecessors, (6178), 5437 states have call successors, (6178) [2021-11-17 09:41:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23774 states to 23774 states and 33957 transitions. [2021-11-17 09:41:58,356 INFO L78 Accepts]: Start accepts. Automaton has 23774 states and 33957 transitions. Word has length 876 [2021-11-17 09:41:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:41:58,357 INFO L470 AbstractCegarLoop]: Abstraction has 23774 states and 33957 transitions. [2021-11-17 09:41:58,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.416666666666668) internal successors, (377), 9 states have internal predecessors, (377), 3 states have call successors, (107), 2 states have call predecessors, (107), 5 states have return successors, (104), 6 states have call predecessors, (104), 3 states have call successors, (104) [2021-11-17 09:41:58,357 INFO L276 IsEmpty]: Start isEmpty. Operand 23774 states and 33957 transitions. [2021-11-17 09:41:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2021-11-17 09:41:58,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:41:58,400 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 10, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:41:58,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-17 09:41:58,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:58,601 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:41:58,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:41:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1239399616, now seen corresponding path program 1 times [2021-11-17 09:41:58,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:41:58,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891116896] [2021-11-17 09:41:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:58,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:41:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 09:41:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:41:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 09:41:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 09:41:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 09:41:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:41:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 09:41:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:41:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 09:41:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:41:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:41:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 09:41:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 09:41:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:41:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 09:41:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 09:41:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 09:41:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:41:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 09:41:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 09:41:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 09:41:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 09:41:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 09:41:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 09:41:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 09:41:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 09:41:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:41:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 09:41:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 09:41:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 09:41:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 09:41:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 09:41:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 09:41:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 09:41:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 09:41:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:41:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:41:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 09:41:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:41:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 09:41:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 09:41:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 09:41:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-11-17 09:41:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 09:41:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 09:41:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 09:41:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 09:41:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:41:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 09:41:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 09:41:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 09:41:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 09:41:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 09:41:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 09:41:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 686 [2021-11-17 09:41:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2021-11-17 09:41:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2021-11-17 09:41:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2021-11-17 09:41:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 710 [2021-11-17 09:41:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 09:41:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 09:41:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 09:41:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2021-11-17 09:41:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:41:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 09:41:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2021-11-17 09:41:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:41:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2021-11-17 09:41:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 801 [2021-11-17 09:41:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 807 [2021-11-17 09:41:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2021-11-17 09:41:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 818 [2021-11-17 09:41:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 825 [2021-11-17 09:41:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 09:41:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 09:41:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:41:59,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1874 backedges. 8 proven. 50 refuted. 0 times theorem prover too weak. 1816 trivial. 0 not checked. [2021-11-17 09:41:59,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:41:59,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891116896] [2021-11-17 09:41:59,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891116896] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 09:41:59,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191338326] [2021-11-17 09:41:59,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:41:59,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 09:41:59,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:41:59,936 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 09:41:59,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process Killed by 15