./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.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 d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 11:02:28,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 11:02:28,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 11:02:28,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 11:02:28,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 11:02:28,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 11:02:28,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 11:02:28,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 11:02:28,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 11:02:28,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 11:02:28,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 11:02:28,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 11:02:28,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 11:02:28,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 11:02:28,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 11:02:28,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 11:02:28,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 11:02:28,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 11:02:28,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 11:02:28,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 11:02:28,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 11:02:28,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 11:02:28,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 11:02:28,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 11:02:28,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 11:02:28,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 11:02:28,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 11:02:28,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 11:02:28,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 11:02:28,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 11:02:28,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 11:02:28,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 11:02:28,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 11:02:28,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 11:02:28,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 11:02:28,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 11:02:28,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 11:02:28,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 11:02:28,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 11:02:28,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 11:02:28,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 11:02:28,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 11:02:28,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 11:02:28,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 11:02:28,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 11:02:28,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 11:02:28,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 11:02:28,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 11:02:28,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 11:02:28,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 11:02:28,700 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 11:02:28,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 11:02:28,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 11:02:28,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 11:02:28,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 11:02:28,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 11:02:28,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 11:02:28,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:02:28,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 11:02:28,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 11:02:28,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 11:02:28,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 11:02:28,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 11:02:28,704 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 11:02:28,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 11:02:28,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 11:02:28,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 11:02:28,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 [2021-12-18 11:02:28,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 11:02:28,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 11:02:28,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 11:02:28,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 11:02:28,947 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 11:02:28,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-12-18 11:02:28,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff15275a0/55e8c0be50394550a2614cc577300d2f/FLAGb088d73b6 [2021-12-18 11:02:29,657 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 11:02:29,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-12-18 11:02:29,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff15275a0/55e8c0be50394550a2614cc577300d2f/FLAGb088d73b6 [2021-12-18 11:02:30,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff15275a0/55e8c0be50394550a2614cc577300d2f [2021-12-18 11:02:30,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 11:02:30,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 11:02:30,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 11:02:30,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 11:02:30,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 11:02:30,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:02:30" (1/1) ... [2021-12-18 11:02:30,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f905b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:30, skipping insertion in model container [2021-12-18 11:02:30,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:02:30" (1/1) ... [2021-12-18 11:02:30,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 11:02:30,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 11:02:32,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-12-18 11:02:32,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-12-18 11:02:32,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-12-18 11:02:32,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-12-18 11:02:32,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:02:32,101 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 11:02:32,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-12-18 11:02:32,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-12-18 11:02:32,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-12-18 11:02:32,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-12-18 11:02:32,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:02:32,478 INFO L208 MainTranslator]: Completed translation [2021-12-18 11:02:32,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32 WrapperNode [2021-12-18 11:02:32,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 11:02:32,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 11:02:32,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 11:02:32,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 11:02:32,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,697 INFO L137 Inliner]: procedures = 470, calls = 2162, calls flagged for inlining = 234, calls inlined = 217, statements flattened = 5446 [2021-12-18 11:02:32,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 11:02:32,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 11:02:32,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 11:02:32,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 11:02:32,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 11:02:32,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 11:02:32,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 11:02:32,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 11:02:32,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (1/1) ... [2021-12-18 11:02:32,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:02:32,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 11:02:32,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 11:02:32,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 11:02:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2021-12-18 11:02:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2021-12-18 11:02:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-18 11:02:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-18 11:02:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 11:02:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 11:02:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 11:02:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 11:02:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 11:02:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 11:02:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 11:02:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 11:02:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 11:02:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 11:02:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:02:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:02:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 11:02:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 11:02:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-18 11:02:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-18 11:02:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-18 11:02:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-18 11:02:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure reset_tx [2021-12-18 11:02:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_tx [2021-12-18 11:02:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-12-18 11:02:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-12-18 11:02:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_76 [2021-12-18 11:02:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_76 [2021-12-18 11:02:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 11:02:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 11:02:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 11:02:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 11:02:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 11:02:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 11:02:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 11:02:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 11:02:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 11:02:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 11:02:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 11:02:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 11:02:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 11:02:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 11:02:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 11:02:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 11:02:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 11:02:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 11:02:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 11:02:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_69 [2021-12-18 11:02:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_69 [2021-12-18 11:02:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-18 11:02:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-18 11:02:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-18 11:02:32,982 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-18 11:02:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 11:02:32,982 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 11:02:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 11:02:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 11:02:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 11:02:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-18 11:02:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-18 11:02:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 11:02:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 11:02:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 11:02:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 11:02:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 11:02:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 11:02:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-18 11:02:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-18 11:02:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 11:02:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 11:02:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 11:02:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 11:02:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 11:02:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 11:02:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure check_duplex [2021-12-18 11:02:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure check_duplex [2021-12-18 11:02:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 11:02:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 11:02:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-12-18 11:02:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-12-18 11:02:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 11:02:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 11:02:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2021-12-18 11:02:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2021-12-18 11:02:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_resume [2021-12-18 11:02:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_resume [2021-12-18 11:02:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:02:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:02:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 11:02:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 11:02:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 11:02:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 11:02:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 11:02:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-18 11:02:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-18 11:02:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 11:02:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 11:02:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 11:02:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 11:02:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 11:02:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 11:02:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-18 11:02:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-18 11:02:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 11:02:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 11:02:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-18 11:02:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-18 11:02:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-18 11:02:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-18 11:02:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 11:02:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 11:02:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 11:02:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 11:02:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 11:02:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 11:02:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 11:02:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 11:02:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 11:02:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 11:02:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure __set_mac_addr [2021-12-18 11:02:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_mac_addr [2021-12-18 11:02:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-18 11:02:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-18 11:02:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 11:02:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 11:02:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sundance_exit_14_2 [2021-12-18 11:02:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sundance_exit_14_2 [2021-12-18 11:02:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 11:02:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 11:02:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 11:02:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 11:02:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-12-18 11:02:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-12-18 11:02:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:02:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:02:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2021-12-18 11:02:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2021-12-18 11:02:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_poll_controller [2021-12-18 11:02:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_poll_controller [2021-12-18 11:02:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 11:02:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 11:02:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2021-12-18 11:02:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2021-12-18 11:02:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-18 11:02:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-18 11:02:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 11:02:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 11:02:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 11:02:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 11:02:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-18 11:02:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-18 11:02:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-18 11:02:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-18 11:02:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 11:02:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 11:02:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 11:02:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 11:02:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 11:02:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_75 [2021-12-18 11:02:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_75 [2021-12-18 11:02:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 11:02:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-18 11:02:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-18 11:02:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-18 11:02:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-18 11:02:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 11:02:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2021-12-18 11:02:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2021-12-18 11:02:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 11:02:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 11:02:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 11:02:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 11:02:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-18 11:02:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-18 11:02:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 11:02:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 11:02:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-18 11:02:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-18 11:02:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-18 11:02:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-18 11:02:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-12-18 11:02:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-12-18 11:02:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_reset [2021-12-18 11:02:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_reset [2021-12-18 11:02:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 11:02:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 11:02:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 11:02:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 11:02:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 11:02:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 11:02:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 11:02:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 11:02:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 11:02:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 11:02:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_remove1 [2021-12-18 11:02:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_remove1 [2021-12-18 11:02:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_70 [2021-12-18 11:02:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_70 [2021-12-18 11:02:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 11:02:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 11:02:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 11:02:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 11:02:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 11:02:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2021-12-18 11:02:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2021-12-18 11:02:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 11:02:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 11:02:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 11:02:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 11:02:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 11:02:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 11:02:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-18 11:02:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-18 11:02:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 11:02:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 11:02:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 11:02:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-18 11:02:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-18 11:02:33,709 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 11:02:33,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 11:02:34,033 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 11:03:27,293 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 11:03:27,364 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 11:03:27,382 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 11:03:27,382 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-18 11:03:27,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:03:27 BoogieIcfgContainer [2021-12-18 11:03:27,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 11:03:27,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 11:03:27,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 11:03:27,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 11:03:27,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:02:30" (1/3) ... [2021-12-18 11:03:27,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c70dff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:03:27, skipping insertion in model container [2021-12-18 11:03:27,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:32" (2/3) ... [2021-12-18 11:03:27,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c70dff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:03:27, skipping insertion in model container [2021-12-18 11:03:27,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:03:27" (3/3) ... [2021-12-18 11:03:27,392 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-12-18 11:03:27,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 11:03:27,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 11:03:27,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 11:03:27,454 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 11:03:27,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 11:03:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 1917 states, 1307 states have (on average 1.2685539403213466) internal successors, (1658), 1345 states have internal predecessors, (1658), 511 states have call successors, (511), 101 states have call predecessors, (511), 100 states have return successors, (505), 498 states have call predecessors, (505), 505 states have call successors, (505) [2021-12-18 11:03:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-18 11:03:27,523 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:27,523 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:27,525 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)] === [2021-12-18 11:03:27,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1904040031, now seen corresponding path program 1 times [2021-12-18 11:03:27,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:27,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633636830] [2021-12-18 11:03:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:27,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:03:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:03:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:03:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 11:03:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 11:03:28,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:28,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633636830] [2021-12-18 11:03:28,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633636830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:28,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:28,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:03:28,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292773681] [2021-12-18 11:03:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:28,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:03:28,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:03:28,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:03:28,645 INFO L87 Difference]: Start difference. First operand has 1917 states, 1307 states have (on average 1.2685539403213466) internal successors, (1658), 1345 states have internal predecessors, (1658), 511 states have call successors, (511), 101 states have call predecessors, (511), 100 states have return successors, (505), 498 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 11:03:30,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:32,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:44,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:44,553 INFO L93 Difference]: Finished difference Result 5640 states and 8034 transitions. [2021-12-18 11:03:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:03:44,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2021-12-18 11:03:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:44,595 INFO L225 Difference]: With dead ends: 5640 [2021-12-18 11:03:44,596 INFO L226 Difference]: Without dead ends: 3744 [2021-12-18 11:03:44,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:03:44,620 INFO L933 BasicCegarLoop]: 2658 mSDtfsCounter, 3421 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 1637 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 5144 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1637 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:44,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3878 Valid, 5144 Invalid, 3631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1637 Valid, 1992 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2021-12-18 11:03:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2021-12-18 11:03:44,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3670. [2021-12-18 11:03:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 2515 states have (on average 1.262027833001988) internal successors, (3174), 2582 states have internal predecessors, (3174), 956 states have call successors, (956), 197 states have call predecessors, (956), 196 states have return successors, (952), 938 states have call predecessors, (952), 952 states have call successors, (952) [2021-12-18 11:03:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5082 transitions. [2021-12-18 11:03:44,891 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5082 transitions. Word has length 171 [2021-12-18 11:03:44,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:44,895 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 5082 transitions. [2021-12-18 11:03:44,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 11:03:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5082 transitions. [2021-12-18 11:03:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-18 11:03:44,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:44,907 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:44,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 11:03:44,907 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash -702002883, now seen corresponding path program 1 times [2021-12-18 11:03:44,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:44,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449969774] [2021-12-18 11:03:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:44,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:03:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:03:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:03:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:03:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 11:03:45,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:45,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449969774] [2021-12-18 11:03:45,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449969774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:45,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:45,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:03:45,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109638354] [2021-12-18 11:03:45,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:45,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:03:45,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:03:45,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:03:45,539 INFO L87 Difference]: Start difference. First operand 3670 states and 5082 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 11:03:47,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:49,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:02,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:02,567 INFO L93 Difference]: Finished difference Result 10478 states and 14545 transitions. [2021-12-18 11:04:02,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:04:02,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-12-18 11:04:02,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:02,601 INFO L225 Difference]: With dead ends: 10478 [2021-12-18 11:04:02,602 INFO L226 Difference]: Without dead ends: 6839 [2021-12-18 11:04:02,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:04:02,615 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 3014 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 1637 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3426 SdHoareTripleChecker+Valid, 5049 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1637 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:02,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3426 Valid, 5049 Invalid, 3634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1637 Valid, 1995 Invalid, 2 Unknown, 0 Unchecked, 16.4s Time] [2021-12-18 11:04:02,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2021-12-18 11:04:02,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6681. [2021-12-18 11:04:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 4526 states have (on average 1.258285461776403) internal successors, (5695), 4660 states have internal predecessors, (5695), 1767 states have call successors, (1767), 384 states have call predecessors, (1767), 385 states have return successors, (1775), 1728 states have call predecessors, (1775), 1763 states have call successors, (1775) [2021-12-18 11:04:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9237 transitions. [2021-12-18 11:04:02,833 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9237 transitions. Word has length 180 [2021-12-18 11:04:02,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:02,834 INFO L470 AbstractCegarLoop]: Abstraction has 6681 states and 9237 transitions. [2021-12-18 11:04:02,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 11:04:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9237 transitions. [2021-12-18 11:04:02,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 11:04:02,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:02,839 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:02,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 11:04:02,839 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:02,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:02,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1018063213, now seen corresponding path program 1 times [2021-12-18 11:04:02,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:02,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444095080] [2021-12-18 11:04:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:02,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:04:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:04:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:04:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 11:04:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 11:04:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 11:04:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 11:04:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:03,397 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-12-18 11:04:03,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:03,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444095080] [2021-12-18 11:04:03,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444095080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:03,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:03,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:04:03,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765505475] [2021-12-18 11:04:03,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:03,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:04:03,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:04:03,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:04:03,402 INFO L87 Difference]: Start difference. First operand 6681 states and 9237 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:04:05,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:07,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:20,281 INFO L93 Difference]: Finished difference Result 19921 states and 27658 transitions. [2021-12-18 11:04:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:04:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 198 [2021-12-18 11:04:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:20,356 INFO L225 Difference]: With dead ends: 19921 [2021-12-18 11:04:20,356 INFO L226 Difference]: Without dead ends: 13271 [2021-12-18 11:04:20,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:04:20,391 INFO L933 BasicCegarLoop]: 2747 mSDtfsCounter, 3392 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 1646 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 5291 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1646 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:20,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3833 Valid, 5291 Invalid, 3566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1646 Valid, 1918 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2021-12-18 11:04:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13271 states. [2021-12-18 11:04:20,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13271 to 12985. [2021-12-18 11:04:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12985 states, 8802 states have (on average 1.2605089752329015) internal successors, (11095), 9082 states have internal predecessors, (11095), 3421 states have call successors, (3421), 762 states have call predecessors, (3421), 759 states have return successors, (3469), 3320 states have call predecessors, (3469), 3417 states have call successors, (3469) [2021-12-18 11:04:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12985 states to 12985 states and 17985 transitions. [2021-12-18 11:04:20,879 INFO L78 Accepts]: Start accepts. Automaton has 12985 states and 17985 transitions. Word has length 198 [2021-12-18 11:04:20,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:20,881 INFO L470 AbstractCegarLoop]: Abstraction has 12985 states and 17985 transitions. [2021-12-18 11:04:20,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:04:20,883 INFO L276 IsEmpty]: Start isEmpty. Operand 12985 states and 17985 transitions. [2021-12-18 11:04:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-18 11:04:20,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:20,888 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 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] [2021-12-18 11:04:20,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 11:04:20,889 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:20,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash -111836799, now seen corresponding path program 1 times [2021-12-18 11:04:20,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:20,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705880690] [2021-12-18 11:04:20,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:20,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:04:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:04:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:04:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:04:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 11:04:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:04:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 11:04:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2021-12-18 11:04:21,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:21,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705880690] [2021-12-18 11:04:21,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705880690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:21,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:21,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:04:21,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891907117] [2021-12-18 11:04:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:21,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:04:21,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:04:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:04:21,629 INFO L87 Difference]: Start difference. First operand 12985 states and 17985 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:04:23,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:25,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:57,453 INFO L93 Difference]: Finished difference Result 28120 states and 38729 transitions. [2021-12-18 11:04:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:04:57,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 210 [2021-12-18 11:04:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:57,517 INFO L225 Difference]: With dead ends: 28120 [2021-12-18 11:04:57,517 INFO L226 Difference]: Without dead ends: 15166 [2021-12-18 11:04:57,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-18 11:04:57,561 INFO L933 BasicCegarLoop]: 3471 mSDtfsCounter, 5625 mSDsluCounter, 3832 mSDsCounter, 0 mSdLazyCounter, 6165 mSolverCounterSat, 2598 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6308 SdHoareTripleChecker+Valid, 7303 SdHoareTripleChecker+Invalid, 8765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2598 IncrementalHoareTripleChecker+Valid, 6165 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:57,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6308 Valid, 7303 Invalid, 8765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2598 Valid, 6165 Invalid, 2 Unknown, 0 Unchecked, 34.7s Time] [2021-12-18 11:04:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15166 states. [2021-12-18 11:04:57,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15166 to 14707. [2021-12-18 11:04:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14707 states, 10099 states have (on average 1.2522031884344984) internal successors, (12646), 10389 states have internal predecessors, (12646), 3660 states have call successors, (3660), 959 states have call predecessors, (3660), 945 states have return successors, (3682), 3536 states have call predecessors, (3682), 3656 states have call successors, (3682) [2021-12-18 11:04:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14707 states to 14707 states and 19988 transitions. [2021-12-18 11:04:57,959 INFO L78 Accepts]: Start accepts. Automaton has 14707 states and 19988 transitions. Word has length 210 [2021-12-18 11:04:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:57,960 INFO L470 AbstractCegarLoop]: Abstraction has 14707 states and 19988 transitions. [2021-12-18 11:04:57,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:04:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 14707 states and 19988 transitions. [2021-12-18 11:04:57,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-18 11:04:57,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:57,964 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:57,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 11:04:57,965 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1904993597, now seen corresponding path program 1 times [2021-12-18 11:04:57,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:57,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867128424] [2021-12-18 11:04:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:57,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:04:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:04:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:04:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:04:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:04:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:04:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:04:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:04:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:04:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-18 11:04:58,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:58,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867128424] [2021-12-18 11:04:58,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867128424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:58,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:58,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:04:58,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928792280] [2021-12-18 11:04:58,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:58,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:04:58,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:58,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:04:58,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:04:58,462 INFO L87 Difference]: Start difference. First operand 14707 states and 19988 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 11:05:00,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:05:02,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:05:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:05:15,651 INFO L93 Difference]: Finished difference Result 43300 states and 59101 transitions. [2021-12-18 11:05:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:05:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 227 [2021-12-18 11:05:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:05:15,763 INFO L225 Difference]: With dead ends: 43300 [2021-12-18 11:05:15,763 INFO L226 Difference]: Without dead ends: 29013 [2021-12-18 11:05:15,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:05:15,810 INFO L933 BasicCegarLoop]: 3821 mSDtfsCounter, 3013 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 1393 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 6923 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1393 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:05:15,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3465 Valid, 6923 Invalid, 3384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1393 Valid, 1989 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2021-12-18 11:05:15,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29013 states. [2021-12-18 11:05:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29013 to 28264. [2021-12-18 11:05:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28264 states, 19446 states have (on average 1.2527512084747505) internal successors, (24361), 19977 states have internal predecessors, (24361), 6997 states have call successors, (6997), 1837 states have call predecessors, (6997), 1818 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-12-18 11:05:16,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28264 states to 28264 states and 38403 transitions. [2021-12-18 11:05:16,613 INFO L78 Accepts]: Start accepts. Automaton has 28264 states and 38403 transitions. Word has length 227 [2021-12-18 11:05:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:05:16,614 INFO L470 AbstractCegarLoop]: Abstraction has 28264 states and 38403 transitions. [2021-12-18 11:05:16,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 11:05:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 28264 states and 38403 transitions. [2021-12-18 11:05:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-18 11:05:16,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:05:16,617 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:05:16,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 11:05:16,618 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:05:16,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:05:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1764444987, now seen corresponding path program 1 times [2021-12-18 11:05:16,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:05:16,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248852855] [2021-12-18 11:05:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:05:16,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:05:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:05:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:05:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:05:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:05:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:05:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:05:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:05:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:05:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:05:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:05:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:05:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:05:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:05:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:05:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:05:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:05:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:05:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:05:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:05:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:05:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:05:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:17,275 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-12-18 11:05:17,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:05:17,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248852855] [2021-12-18 11:05:17,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248852855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:05:17,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:05:17,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:05:17,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305151035] [2021-12-18 11:05:17,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:05:17,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:05:17,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:05:17,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:05:17,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:05:17,278 INFO L87 Difference]: Start difference. First operand 28264 states and 38403 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 11:05:19,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:05:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:05:33,513 INFO L93 Difference]: Finished difference Result 29015 states and 39594 transitions. [2021-12-18 11:05:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:05:33,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 227 [2021-12-18 11:05:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:05:33,619 INFO L225 Difference]: With dead ends: 29015 [2021-12-18 11:05:33,619 INFO L226 Difference]: Without dead ends: 29013 [2021-12-18 11:05:33,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:05:33,640 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2694 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 6564 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:05:33,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 6564 Invalid, 3679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1193 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 11:05:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29013 states. [2021-12-18 11:05:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29013 to 28268. [2021-12-18 11:05:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28268 states, 19449 states have (on average 1.252712221708057) internal successors, (24364), 19980 states have internal predecessors, (24364), 6997 states have call successors, (6997), 1838 states have call predecessors, (6997), 1819 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-12-18 11:05:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28268 states to 28268 states and 38406 transitions. [2021-12-18 11:05:34,640 INFO L78 Accepts]: Start accepts. Automaton has 28268 states and 38406 transitions. Word has length 227 [2021-12-18 11:05:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:05:34,641 INFO L470 AbstractCegarLoop]: Abstraction has 28268 states and 38406 transitions. [2021-12-18 11:05:34,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 11:05:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 28268 states and 38406 transitions. [2021-12-18 11:05:34,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-18 11:05:34,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:05:34,645 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:05:34,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 11:05:34,645 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:05:34,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:05:34,645 INFO L85 PathProgramCache]: Analyzing trace with hash -692345477, now seen corresponding path program 1 times [2021-12-18 11:05:34,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:05:34,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010938198] [2021-12-18 11:05:34,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:05:34,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:05:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:05:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:05:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:05:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:05:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:05:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:05:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:05:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:05:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:05:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:05:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:05:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:05:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:05:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:05:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:05:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:05:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:05:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:05:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:05:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:05:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:05:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:05:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2021-12-18 11:05:35,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:05:35,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010938198] [2021-12-18 11:05:35,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010938198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:05:35,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:05:35,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:05:35,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077094092] [2021-12-18 11:05:35,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:05:35,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:05:35,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:05:35,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:05:35,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:05:35,323 INFO L87 Difference]: Start difference. First operand 28268 states and 38406 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 11:05:37,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:05:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:05:51,886 INFO L93 Difference]: Finished difference Result 29019 states and 39597 transitions. [2021-12-18 11:05:51,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:05:51,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 232 [2021-12-18 11:05:51,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:05:51,971 INFO L225 Difference]: With dead ends: 29019 [2021-12-18 11:05:51,971 INFO L226 Difference]: Without dead ends: 29017 [2021-12-18 11:05:51,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:05:51,984 INFO L933 BasicCegarLoop]: 2388 mSDtfsCounter, 2691 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1196 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6542 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:05:51,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 6542 Invalid, 3682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 11:05:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29017 states. [2021-12-18 11:05:52,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29017 to 28272. [2021-12-18 11:05:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28272 states, 19452 states have (on average 1.2526732469668929) internal successors, (24367), 19983 states have internal predecessors, (24367), 6997 states have call successors, (6997), 1839 states have call predecessors, (6997), 1820 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-12-18 11:05:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28272 states to 28272 states and 38409 transitions. [2021-12-18 11:05:52,854 INFO L78 Accepts]: Start accepts. Automaton has 28272 states and 38409 transitions. Word has length 232 [2021-12-18 11:05:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:05:52,855 INFO L470 AbstractCegarLoop]: Abstraction has 28272 states and 38409 transitions. [2021-12-18 11:05:52,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 11:05:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 28272 states and 38409 transitions. [2021-12-18 11:05:52,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-18 11:05:52,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:05:52,859 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:05:52,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 11:05:52,860 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:05:52,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:05:52,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1482280517, now seen corresponding path program 1 times [2021-12-18 11:05:52,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:05:52,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045252263] [2021-12-18 11:05:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:05:52,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:05:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:05:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:05:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:05:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:05:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:05:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:05:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:05:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:05:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:05:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:05:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:05:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:05:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:05:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:05:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:05:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:05:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:05:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:05:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:05:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:05:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:05:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:05:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:05:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:05:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:05:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2021-12-18 11:05:53,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:05:53,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045252263] [2021-12-18 11:05:53,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045252263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:05:53,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:05:53,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:05:53,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411302587] [2021-12-18 11:05:53,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:05:53,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:05:53,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:05:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:05:53,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:05:53,602 INFO L87 Difference]: Start difference. First operand 28272 states and 38409 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 11:05:55,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:06:09,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:06:09,325 INFO L93 Difference]: Finished difference Result 29023 states and 39600 transitions. [2021-12-18 11:06:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:06:09,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 237 [2021-12-18 11:06:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:06:09,401 INFO L225 Difference]: With dead ends: 29023 [2021-12-18 11:06:09,401 INFO L226 Difference]: Without dead ends: 29021 [2021-12-18 11:06:09,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:06:09,414 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2688 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 6558 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:06:09,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 6558 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1193 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2021-12-18 11:06:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29021 states. [2021-12-18 11:06:10,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29021 to 28276. [2021-12-18 11:06:10,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28276 states, 19455 states have (on average 1.2526342842456952) internal successors, (24370), 19986 states have internal predecessors, (24370), 6997 states have call successors, (6997), 1840 states have call predecessors, (6997), 1821 states have return successors, (7045), 6803 states have call predecessors, (7045), 6993 states have call successors, (7045) [2021-12-18 11:06:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28276 states to 28276 states and 38412 transitions. [2021-12-18 11:06:10,238 INFO L78 Accepts]: Start accepts. Automaton has 28276 states and 38412 transitions. Word has length 237 [2021-12-18 11:06:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:06:10,238 INFO L470 AbstractCegarLoop]: Abstraction has 28276 states and 38412 transitions. [2021-12-18 11:06:10,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 11:06:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 28276 states and 38412 transitions. [2021-12-18 11:06:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-18 11:06:10,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:06:10,242 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:06:10,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 11:06:10,243 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)] === [2021-12-18 11:06:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:06:10,243 INFO L85 PathProgramCache]: Analyzing trace with hash -722426746, now seen corresponding path program 1 times [2021-12-18 11:06:10,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:06:10,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986793867] [2021-12-18 11:06:10,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:06:10,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:06:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:06:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:06:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:06:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:06:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:06:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:06:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:06:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:06:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:06:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:06:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:06:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:06:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:06:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:06:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:06:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:06:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:06:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:06:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:06:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:06:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 11:06:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 11:06:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:06:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 11:06:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 11:06:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 11:06:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2021-12-18 11:06:10,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:06:10,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986793867] [2021-12-18 11:06:10,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986793867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:06:10,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:06:10,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:06:10,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529700464] [2021-12-18 11:06:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:06:10,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:06:10,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:06:10,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:06:10,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:06:10,783 INFO L87 Difference]: Start difference. First operand 28276 states and 38412 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 11:06:12,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:06:15,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:06:17,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:06:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:06:38,310 INFO L93 Difference]: Finished difference Result 70839 states and 96576 transitions. [2021-12-18 11:06:38,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:06:38,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 254 [2021-12-18 11:06:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:06:38,472 INFO L225 Difference]: With dead ends: 70839 [2021-12-18 11:06:38,472 INFO L226 Difference]: Without dead ends: 42983 [2021-12-18 11:06:38,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:06:38,548 INFO L933 BasicCegarLoop]: 4500 mSDtfsCounter, 3468 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 3217 mSolverCounterSat, 2650 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 8474 SdHoareTripleChecker+Invalid, 5870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2650 IncrementalHoareTripleChecker+Valid, 3217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:06:38,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3719 Valid, 8474 Invalid, 5870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2650 Valid, 3217 Invalid, 3 Unknown, 0 Unchecked, 25.9s Time] [2021-12-18 11:06:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42983 states. [2021-12-18 11:06:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42983 to 41845. [2021-12-18 11:06:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41845 states, 28814 states have (on average 1.2527590754494342) internal successors, (36097), 29586 states have internal predecessors, (36097), 10334 states have call successors, (10334), 2718 states have call predecessors, (10334), 2694 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-12-18 11:06:39,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41845 states to 41845 states and 56839 transitions. [2021-12-18 11:06:39,970 INFO L78 Accepts]: Start accepts. Automaton has 41845 states and 56839 transitions. Word has length 254 [2021-12-18 11:06:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:06:39,970 INFO L470 AbstractCegarLoop]: Abstraction has 41845 states and 56839 transitions. [2021-12-18 11:06:39,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 11:06:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 41845 states and 56839 transitions. [2021-12-18 11:06:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-18 11:06:39,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:06:39,975 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:06:39,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 11:06:39,975 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:06:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:06:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1004229765, now seen corresponding path program 1 times [2021-12-18 11:06:39,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:06:39,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082951629] [2021-12-18 11:06:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:06:39,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:06:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:06:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:06:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:06:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:06:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:06:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:06:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:06:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:06:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:06:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:06:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:06:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:06:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:06:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:06:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:06:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:06:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:06:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:06:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:06:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:06:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:06:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:06:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:06:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:06:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2021-12-18 11:06:40,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:06:40,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082951629] [2021-12-18 11:06:40,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082951629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:06:40,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:06:40,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:06:40,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585101478] [2021-12-18 11:06:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:06:40,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:06:40,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:06:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:06:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:06:40,814 INFO L87 Difference]: Start difference. First operand 41845 states and 56839 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 11:06:42,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:06:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:06:57,848 INFO L93 Difference]: Finished difference Result 42954 states and 58594 transitions. [2021-12-18 11:06:57,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:06:57,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 242 [2021-12-18 11:06:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:06:57,969 INFO L225 Difference]: With dead ends: 42954 [2021-12-18 11:06:57,969 INFO L226 Difference]: Without dead ends: 42952 [2021-12-18 11:06:57,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:06:57,994 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2687 mSDsluCounter, 4164 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1192 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 6557 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1192 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:06:57,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 6557 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1192 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2021-12-18 11:06:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42952 states. [2021-12-18 11:06:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42952 to 41849. [2021-12-18 11:06:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41849 states, 28817 states have (on average 1.2527327619113717) internal successors, (36100), 29589 states have internal predecessors, (36100), 10334 states have call successors, (10334), 2719 states have call predecessors, (10334), 2695 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-12-18 11:06:59,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41849 states to 41849 states and 56842 transitions. [2021-12-18 11:06:59,491 INFO L78 Accepts]: Start accepts. Automaton has 41849 states and 56842 transitions. Word has length 242 [2021-12-18 11:06:59,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:06:59,491 INFO L470 AbstractCegarLoop]: Abstraction has 41849 states and 56842 transitions. [2021-12-18 11:06:59,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 11:06:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 41849 states and 56842 transitions. [2021-12-18 11:06:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-18 11:06:59,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:06:59,514 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:06:59,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 11:06:59,515 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:06:59,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:06:59,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1579239483, now seen corresponding path program 1 times [2021-12-18 11:06:59,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:06:59,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611168701] [2021-12-18 11:06:59,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:06:59,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:06:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:06:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:06:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:06:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:06:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:06:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:07:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:07:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:07:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:07:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:07:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:07:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:07:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:07:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:07:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:07:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:07:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:07:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:07:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:07:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:07:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:07:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:07:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:07:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:07:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:07:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:07:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:07:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2021-12-18 11:07:00,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:07:00,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611168701] [2021-12-18 11:07:00,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611168701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:07:00,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:07:00,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:07:00,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261600184] [2021-12-18 11:07:00,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:07:00,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:07:00,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:07:00,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:07:00,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:07:00,141 INFO L87 Difference]: Start difference. First operand 41849 states and 56842 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 11:07:02,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:07:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:07:17,422 INFO L93 Difference]: Finished difference Result 42958 states and 58597 transitions. [2021-12-18 11:07:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:07:17,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 247 [2021-12-18 11:07:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:07:17,524 INFO L225 Difference]: With dead ends: 42958 [2021-12-18 11:07:17,524 INFO L226 Difference]: Without dead ends: 42956 [2021-12-18 11:07:17,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:07:17,543 INFO L933 BasicCegarLoop]: 2388 mSDtfsCounter, 2691 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6542 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:07:17,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 6542 Invalid, 3679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1193 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2021-12-18 11:07:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42956 states. [2021-12-18 11:07:18,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42956 to 41853. [2021-12-18 11:07:18,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41853 states, 28820 states have (on average 1.252706453851492) internal successors, (36103), 29592 states have internal predecessors, (36103), 10334 states have call successors, (10334), 2720 states have call predecessors, (10334), 2696 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-12-18 11:07:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41853 states to 41853 states and 56845 transitions. [2021-12-18 11:07:19,124 INFO L78 Accepts]: Start accepts. Automaton has 41853 states and 56845 transitions. Word has length 247 [2021-12-18 11:07:19,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:07:19,124 INFO L470 AbstractCegarLoop]: Abstraction has 41853 states and 56845 transitions. [2021-12-18 11:07:19,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 11:07:19,125 INFO L276 IsEmpty]: Start isEmpty. Operand 41853 states and 56845 transitions. [2021-12-18 11:07:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-12-18 11:07:19,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:07:19,130 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:07:19,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 11:07:19,130 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:07:19,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:07:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1089462651, now seen corresponding path program 1 times [2021-12-18 11:07:19,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:07:19,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698015654] [2021-12-18 11:07:19,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:07:19,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:07:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:07:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:07:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:07:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:07:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:07:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:07:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:07:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:07:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:07:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:07:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:07:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:07:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:07:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:07:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:07:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:07:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:07:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:07:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:07:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:07:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:07:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:07:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:07:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:07:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:07:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:07:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:19,918 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2021-12-18 11:07:19,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:07:19,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698015654] [2021-12-18 11:07:19,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698015654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:07:19,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:07:19,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:07:19,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548257523] [2021-12-18 11:07:19,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:07:19,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:07:19,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:07:19,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:07:19,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:07:19,921 INFO L87 Difference]: Start difference. First operand 41853 states and 56845 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 11:07:21,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:07:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:07:37,286 INFO L93 Difference]: Finished difference Result 42962 states and 58600 transitions. [2021-12-18 11:07:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:07:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 252 [2021-12-18 11:07:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:07:37,434 INFO L225 Difference]: With dead ends: 42962 [2021-12-18 11:07:37,434 INFO L226 Difference]: Without dead ends: 42960 [2021-12-18 11:07:37,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:07:37,460 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2687 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1190 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:07:37,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2919 Valid, 6561 Invalid, 3676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1190 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2021-12-18 11:07:37,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42960 states. [2021-12-18 11:07:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42960 to 41857. [2021-12-18 11:07:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41857 states, 28823 states have (on average 1.2526801512680845) internal successors, (36106), 29595 states have internal predecessors, (36106), 10334 states have call successors, (10334), 2721 states have call predecessors, (10334), 2697 states have return successors, (10408), 10070 states have call predecessors, (10408), 10330 states have call successors, (10408) [2021-12-18 11:07:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41857 states to 41857 states and 56848 transitions. [2021-12-18 11:07:38,984 INFO L78 Accepts]: Start accepts. Automaton has 41857 states and 56848 transitions. Word has length 252 [2021-12-18 11:07:38,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:07:38,985 INFO L470 AbstractCegarLoop]: Abstraction has 41857 states and 56848 transitions. [2021-12-18 11:07:38,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 11:07:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 41857 states and 56848 transitions. [2021-12-18 11:07:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-18 11:07:38,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:07:38,990 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:07:38,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 11:07:38,991 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:07:38,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:07:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1847627451, now seen corresponding path program 1 times [2021-12-18 11:07:38,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:07:38,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996316831] [2021-12-18 11:07:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:07:38,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:07:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:07:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:07:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:07:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:07:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:07:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:07:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:07:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:07:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:07:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:07:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:07:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:07:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:07:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:07:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:07:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:07:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:07:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:07:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:07:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:07:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:07:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:07:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:07:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:07:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:07:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:07:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:07:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2021-12-18 11:07:39,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:07:39,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996316831] [2021-12-18 11:07:39,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996316831] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:07:39,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:07:39,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:07:39,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576403704] [2021-12-18 11:07:39,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:07:39,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:07:39,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:07:39,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:07:39,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:07:39,761 INFO L87 Difference]: Start difference. First operand 41857 states and 56848 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 11:07:41,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:07:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:07:57,659 INFO L93 Difference]: Finished difference Result 45335 states and 60980 transitions. [2021-12-18 11:07:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:07:57,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 257 [2021-12-18 11:07:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:07:57,784 INFO L225 Difference]: With dead ends: 45335 [2021-12-18 11:07:57,784 INFO L226 Difference]: Without dead ends: 45333 [2021-12-18 11:07:57,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:07:57,807 INFO L933 BasicCegarLoop]: 2398 mSDtfsCounter, 2676 mSDsluCounter, 4205 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 1154 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 6603 SdHoareTripleChecker+Invalid, 3820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1154 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:07:57,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2921 Valid, 6603 Invalid, 3820 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1154 Valid, 2665 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2021-12-18 11:07:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45333 states. [2021-12-18 11:07:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45333 to 44228. [2021-12-18 11:07:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44228 states, 30449 states have (on average 1.2453939374035272) internal successors, (37921), 31251 states have internal predecessors, (37921), 10616 states have call successors, (10616), 3184 states have call predecessors, (10616), 3160 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-12-18 11:07:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44228 states to 44228 states and 59227 transitions. [2021-12-18 11:07:59,473 INFO L78 Accepts]: Start accepts. Automaton has 44228 states and 59227 transitions. Word has length 257 [2021-12-18 11:07:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:07:59,474 INFO L470 AbstractCegarLoop]: Abstraction has 44228 states and 59227 transitions. [2021-12-18 11:07:59,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 11:07:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 44228 states and 59227 transitions. [2021-12-18 11:07:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-18 11:07:59,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:07:59,481 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:07:59,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 11:07:59,481 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:07:59,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:07:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash -601798789, now seen corresponding path program 1 times [2021-12-18 11:07:59,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:07:59,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562526542] [2021-12-18 11:07:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:07:59,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:07:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:07:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:07:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:07:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:07:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:07:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:07:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:07:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:07:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:07:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:07:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:07:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:07:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:08:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:08:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:08:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:08:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:08:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:08:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:08:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:08:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:08:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:08:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:08:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:08:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:08:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:08:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:08:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:08:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:08:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 11:08:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2021-12-18 11:08:00,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:08:00,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562526542] [2021-12-18 11:08:00,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562526542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:08:00,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:08:00,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:08:00,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173577155] [2021-12-18 11:08:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:08:00,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:08:00,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:08:00,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:08:00,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:08:00,080 INFO L87 Difference]: Start difference. First operand 44228 states and 59227 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 11:08:02,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:08:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:08:18,073 INFO L93 Difference]: Finished difference Result 45337 states and 60982 transitions. [2021-12-18 11:08:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:08:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 262 [2021-12-18 11:08:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:08:18,226 INFO L225 Difference]: With dead ends: 45337 [2021-12-18 11:08:18,226 INFO L226 Difference]: Without dead ends: 45335 [2021-12-18 11:08:18,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:08:18,256 INFO L933 BasicCegarLoop]: 2391 mSDtfsCounter, 2689 mSDsluCounter, 4160 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 6551 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:08:18,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2922 Valid, 6551 Invalid, 3674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1188 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.6s Time] [2021-12-18 11:08:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45335 states. [2021-12-18 11:08:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45335 to 44232. [2021-12-18 11:08:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44232 states, 30452 states have (on average 1.245369762248785) internal successors, (37924), 31254 states have internal predecessors, (37924), 10616 states have call successors, (10616), 3185 states have call predecessors, (10616), 3161 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-12-18 11:08:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44232 states to 44232 states and 59230 transitions. [2021-12-18 11:08:20,071 INFO L78 Accepts]: Start accepts. Automaton has 44232 states and 59230 transitions. Word has length 262 [2021-12-18 11:08:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:08:20,071 INFO L470 AbstractCegarLoop]: Abstraction has 44232 states and 59230 transitions. [2021-12-18 11:08:20,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 11:08:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 44232 states and 59230 transitions. [2021-12-18 11:08:20,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-18 11:08:20,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:08:20,078 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:08:20,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 11:08:20,078 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:08:20,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:08:20,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1540881093, now seen corresponding path program 1 times [2021-12-18 11:08:20,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:08:20,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109857211] [2021-12-18 11:08:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:08:20,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:08:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:08:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:08:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:08:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:08:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:08:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:08:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:08:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:08:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:08:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:08:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:08:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:08:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:08:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:08:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:08:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:08:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:08:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:08:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:08:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:08:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:08:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:08:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:08:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:08:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:08:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:08:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:08:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 11:08:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:08:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2021-12-18 11:08:20,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:08:20,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109857211] [2021-12-18 11:08:20,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109857211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:08:20,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:08:20,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:08:20,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117894912] [2021-12-18 11:08:20,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:08:20,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:08:20,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:08:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:08:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:08:20,651 INFO L87 Difference]: Start difference. First operand 44232 states and 59230 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 11:08:22,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:08:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:08:38,246 INFO L93 Difference]: Finished difference Result 45341 states and 60985 transitions. [2021-12-18 11:08:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:08:38,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 267 [2021-12-18 11:08:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:08:38,433 INFO L225 Difference]: With dead ends: 45341 [2021-12-18 11:08:38,433 INFO L226 Difference]: Without dead ends: 45339 [2021-12-18 11:08:38,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:08:38,459 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 2691 mSDsluCounter, 4152 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1191 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 6539 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1191 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:08:38,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 6539 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1191 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.6s Time] [2021-12-18 11:08:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45339 states. [2021-12-18 11:08:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45339 to 44236. [2021-12-18 11:08:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44236 states, 30455 states have (on average 1.245345591856838) internal successors, (37927), 31257 states have internal predecessors, (37927), 10616 states have call successors, (10616), 3186 states have call predecessors, (10616), 3162 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-12-18 11:08:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44236 states to 44236 states and 59233 transitions. [2021-12-18 11:08:40,398 INFO L78 Accepts]: Start accepts. Automaton has 44236 states and 59233 transitions. Word has length 267 [2021-12-18 11:08:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:08:40,399 INFO L470 AbstractCegarLoop]: Abstraction has 44236 states and 59233 transitions. [2021-12-18 11:08:40,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 11:08:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 44236 states and 59233 transitions. [2021-12-18 11:08:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-18 11:08:40,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:08:40,407 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:08:40,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 11:08:40,408 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)] === [2021-12-18 11:08:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:08:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash 800906619, now seen corresponding path program 1 times [2021-12-18 11:08:40,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:08:40,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950943325] [2021-12-18 11:08:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:08:40,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:08:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:08:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:08:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:08:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:08:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:08:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:08:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:08:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:08:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:08:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:08:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:08:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:08:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:08:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:08:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:08:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:08:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:08:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:08:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:08:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:08:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:08:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:08:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:08:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:08:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:08:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:08:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:08:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:08:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 11:08:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:08:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 11:08:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:08:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2021-12-18 11:08:41,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:08:41,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950943325] [2021-12-18 11:08:41,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950943325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:08:41,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:08:41,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:08:41,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299038947] [2021-12-18 11:08:41,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:08:41,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:08:41,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:08:41,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:08:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:08:41,084 INFO L87 Difference]: Start difference. First operand 44236 states and 59233 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 11:08:43,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:08:59,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:08:59,493 INFO L93 Difference]: Finished difference Result 45345 states and 60988 transitions. [2021-12-18 11:08:59,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:08:59,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 272 [2021-12-18 11:08:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:08:59,640 INFO L225 Difference]: With dead ends: 45345 [2021-12-18 11:08:59,641 INFO L226 Difference]: Without dead ends: 45343 [2021-12-18 11:08:59,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:08:59,659 INFO L933 BasicCegarLoop]: 2391 mSDtfsCounter, 2688 mSDsluCounter, 4160 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 6551 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:08:59,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2921 Valid, 6551 Invalid, 3674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1188 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2021-12-18 11:08:59,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45343 states. [2021-12-18 11:09:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45343 to 44240. [2021-12-18 11:09:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44240 states, 30458 states have (on average 1.2453214262262788) internal successors, (37930), 31260 states have internal predecessors, (37930), 10616 states have call successors, (10616), 3187 states have call predecessors, (10616), 3163 states have return successors, (10690), 10352 states have call predecessors, (10690), 10612 states have call successors, (10690) [2021-12-18 11:09:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44240 states to 44240 states and 59236 transitions. [2021-12-18 11:09:01,559 INFO L78 Accepts]: Start accepts. Automaton has 44240 states and 59236 transitions. Word has length 272 [2021-12-18 11:09:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:09:01,559 INFO L470 AbstractCegarLoop]: Abstraction has 44240 states and 59236 transitions. [2021-12-18 11:09:01,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 11:09:01,560 INFO L276 IsEmpty]: Start isEmpty. Operand 44240 states and 59236 transitions. [2021-12-18 11:09:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-18 11:09:01,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:09:01,569 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:09:01,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 11:09:01,569 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:09:01,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:09:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1349987293, now seen corresponding path program 1 times [2021-12-18 11:09:01,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:09:01,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876140618] [2021-12-18 11:09:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:09:01,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:09:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:09:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:09:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:09:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:09:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:09:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:09:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:09:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:09:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:09:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:09:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:09:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:09:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:09:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:09:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:09:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:09:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:09:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:09:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:09:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:09:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:09:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 11:09:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:09:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 11:09:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 11:09:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:09:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:09:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 11:09:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 11:09:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 11:09:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 11:09:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 11:09:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-18 11:09:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-18 11:09:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 11:09:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 11:09:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2021-12-18 11:09:02,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:09:02,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876140618] [2021-12-18 11:09:02,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876140618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:09:02,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:09:02,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:09:02,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975988392] [2021-12-18 11:09:02,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:09:02,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:09:02,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:09:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:09:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:09:02,125 INFO L87 Difference]: Start difference. First operand 44240 states and 59236 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 11:09:04,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:09:06,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:09:08,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:09:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:09:31,251 INFO L93 Difference]: Finished difference Result 103962 states and 139581 transitions. [2021-12-18 11:09:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 11:09:31,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 312 [2021-12-18 11:09:31,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:09:31,434 INFO L225 Difference]: With dead ends: 103962 [2021-12-18 11:09:31,434 INFO L226 Difference]: Without dead ends: 60142 [2021-12-18 11:09:31,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 11:09:31,538 INFO L933 BasicCegarLoop]: 4510 mSDtfsCounter, 3495 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 3213 mSolverCounterSat, 2630 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 8480 SdHoareTripleChecker+Invalid, 5846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2630 IncrementalHoareTripleChecker+Valid, 3213 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:09:31,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3746 Valid, 8480 Invalid, 5846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2630 Valid, 3213 Invalid, 3 Unknown, 0 Unchecked, 26.1s Time] [2021-12-18 11:09:31,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60142 states. [2021-12-18 11:09:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60142 to 58618. [2021-12-18 11:09:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58618 states, 40362 states have (on average 1.245354541400327) internal successors, (50265), 41415 states have internal predecessors, (50265), 14059 states have call successors, (14059), 4231 states have call predecessors, (14059), 4194 states have return successors, (14159), 13717 states have call predecessors, (14159), 14055 states have call successors, (14159) [2021-12-18 11:09:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58618 states to 58618 states and 78483 transitions. [2021-12-18 11:09:34,301 INFO L78 Accepts]: Start accepts. Automaton has 58618 states and 78483 transitions. Word has length 312 [2021-12-18 11:09:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:09:34,301 INFO L470 AbstractCegarLoop]: Abstraction has 58618 states and 78483 transitions. [2021-12-18 11:09:34,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 11:09:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 58618 states and 78483 transitions. [2021-12-18 11:09:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-18 11:09:34,316 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:09:34,316 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:09:34,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 11:09:34,316 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:09:34,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:09:34,317 INFO L85 PathProgramCache]: Analyzing trace with hash 986405217, now seen corresponding path program 1 times [2021-12-18 11:09:34,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:09:34,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375487136] [2021-12-18 11:09:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:09:34,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:09:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:09:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:09:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:09:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:09:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:09:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:09:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:09:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:09:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:09:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:09:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:09:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:09:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:09:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:09:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:09:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:09:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:09:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:09:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:09:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:09:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:09:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:09:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 11:09:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:09:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 11:09:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 11:09:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:09:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:09:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 11:09:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 11:09:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 11:09:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 11:09:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 11:09:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-18 11:09:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-18 11:09:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 11:09:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 11:09:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:09:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2021-12-18 11:09:34,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:09:34,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375487136] [2021-12-18 11:09:34,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375487136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:09:34,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:09:34,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:09:34,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964396076] [2021-12-18 11:09:34,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:09:34,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:09:34,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:09:34,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:09:34,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:09:34,985 INFO L87 Difference]: Start difference. First operand 58618 states and 78483 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 11:09:37,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:09:39,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:09:41,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:10:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:10:06,625 INFO L93 Difference]: Finished difference Result 132973 states and 178551 transitions. [2021-12-18 11:10:06,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:10:06,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 312 [2021-12-18 11:10:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:10:06,948 INFO L225 Difference]: With dead ends: 132973 [2021-12-18 11:10:06,949 INFO L226 Difference]: Without dead ends: 74775 [2021-12-18 11:10:07,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:10:07,127 INFO L933 BasicCegarLoop]: 4492 mSDtfsCounter, 3459 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 2577 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 5777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2577 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:10:07,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3709 Valid, 8463 Invalid, 5777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2577 Valid, 3197 Invalid, 3 Unknown, 0 Unchecked, 27.6s Time] [2021-12-18 11:10:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74775 states. [2021-12-18 11:10:10,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74775 to 72952. [2021-12-18 11:10:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72952 states, 50238 states have (on average 1.245511365898324) internal successors, (62572), 51542 states have internal predecessors, (62572), 17490 states have call successors, (17490), 5263 states have call predecessors, (17490), 5221 states have return successors, (17616), 17078 states have call predecessors, (17616), 17486 states have call successors, (17616) [2021-12-18 11:10:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72952 states to 72952 states and 97678 transitions. [2021-12-18 11:10:10,633 INFO L78 Accepts]: Start accepts. Automaton has 72952 states and 97678 transitions. Word has length 312 [2021-12-18 11:10:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:10:10,633 INFO L470 AbstractCegarLoop]: Abstraction has 72952 states and 97678 transitions. [2021-12-18 11:10:10,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 11:10:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 72952 states and 97678 transitions. [2021-12-18 11:10:10,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-12-18 11:10:10,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:10:10,643 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 11, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:10:10,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 11:10:10,644 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:10:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:10:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash 138695749, now seen corresponding path program 1 times [2021-12-18 11:10:10,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:10:10,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489251535] [2021-12-18 11:10:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:10:10,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:10:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:10:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:10:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:10:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:10:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:10:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:10:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:10:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:10:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:10:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:10:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:10:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:10:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:10:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:10:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:10:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:10:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:10:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:10:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:10:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:10:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:10:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:10:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:10:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:10:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:10:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:10:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:10:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 11:10:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:10:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 11:10:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 11:10:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2021-12-18 11:10:11,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:10:11,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489251535] [2021-12-18 11:10:11,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489251535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:10:11,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:10:11,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:10:11,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453541857] [2021-12-18 11:10:11,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:10:11,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:10:11,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:10:11,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:10:11,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:10:11,226 INFO L87 Difference]: Start difference. First operand 72952 states and 97678 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:10:13,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:10:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:10:31,067 INFO L93 Difference]: Finished difference Result 74777 states and 100561 transitions. [2021-12-18 11:10:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:10:31,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 277 [2021-12-18 11:10:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:10:31,454 INFO L225 Difference]: With dead ends: 74777 [2021-12-18 11:10:31,454 INFO L226 Difference]: Without dead ends: 74775 [2021-12-18 11:10:31,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:10:31,501 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2691 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1187 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 6546 SdHoareTripleChecker+Invalid, 3673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:10:31,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 6546 Invalid, 3673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1187 Valid, 2485 Invalid, 1 Unknown, 0 Unchecked, 16.2s Time] [2021-12-18 11:10:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74775 states. [2021-12-18 11:10:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74775 to 72956. [2021-12-18 11:10:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72956 states, 50241 states have (on average 1.2454967058776696) internal successors, (62575), 51545 states have internal predecessors, (62575), 17490 states have call successors, (17490), 5264 states have call predecessors, (17490), 5222 states have return successors, (17616), 17078 states have call predecessors, (17616), 17486 states have call successors, (17616) [2021-12-18 11:10:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72956 states to 72956 states and 97681 transitions. [2021-12-18 11:10:35,273 INFO L78 Accepts]: Start accepts. Automaton has 72956 states and 97681 transitions. Word has length 277 [2021-12-18 11:10:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:10:35,273 INFO L470 AbstractCegarLoop]: Abstraction has 72956 states and 97681 transitions. [2021-12-18 11:10:35,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:10:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 72956 states and 97681 transitions. [2021-12-18 11:10:35,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-12-18 11:10:35,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:10:35,285 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 12, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:10:35,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 11:10:35,285 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:10:35,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:10:35,286 INFO L85 PathProgramCache]: Analyzing trace with hash 549888891, now seen corresponding path program 1 times [2021-12-18 11:10:35,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:10:35,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002215085] [2021-12-18 11:10:35,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:10:35,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:10:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:10:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:10:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:10:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:10:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:10:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:10:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:10:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:10:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:10:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:10:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:10:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:10:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:10:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:10:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:10:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:10:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:10:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:10:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:10:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:10:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:10:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:10:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 11:10:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:10:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 11:10:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 11:10:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 11:10:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:10:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 11:10:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:10:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 11:10:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 11:10:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 11:10:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:10:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2021-12-18 11:10:36,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:10:36,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002215085] [2021-12-18 11:10:36,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002215085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:10:36,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:10:36,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:10:36,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365515893] [2021-12-18 11:10:36,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:10:36,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:10:36,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:10:36,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:10:36,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:10:36,021 INFO L87 Difference]: Start difference. First operand 72956 states and 97681 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 11:10:38,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:10:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:10:56,587 INFO L93 Difference]: Finished difference Result 75283 states and 100915 transitions. [2021-12-18 11:10:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:10:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 282 [2021-12-18 11:10:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:10:56,884 INFO L225 Difference]: With dead ends: 75283 [2021-12-18 11:10:56,884 INFO L226 Difference]: Without dead ends: 75279 [2021-12-18 11:10:56,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:10:56,935 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2683 mSDsluCounter, 4178 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 1129 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2931 SdHoareTripleChecker+Valid, 6567 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1129 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:10:56,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2931 Valid, 6567 Invalid, 3671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1129 Valid, 2541 Invalid, 1 Unknown, 0 Unchecked, 16.6s Time] [2021-12-18 11:10:57,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75279 states. [2021-12-18 11:11:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75279 to 73458. [2021-12-18 11:11:00,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73458 states, 50593 states have (on average 1.243768900836084) internal successors, (62926), 51896 states have internal predecessors, (62926), 17490 states have call successors, (17490), 5415 states have call predecessors, (17490), 5372 states have return successors, (17616), 17078 states have call predecessors, (17616), 17486 states have call successors, (17616) [2021-12-18 11:11:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73458 states to 73458 states and 98032 transitions. [2021-12-18 11:11:00,877 INFO L78 Accepts]: Start accepts. Automaton has 73458 states and 98032 transitions. Word has length 282 [2021-12-18 11:11:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:11:00,878 INFO L470 AbstractCegarLoop]: Abstraction has 73458 states and 98032 transitions. [2021-12-18 11:11:00,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 11:11:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 73458 states and 98032 transitions. [2021-12-18 11:11:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-18 11:11:00,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:11:00,892 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 13, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:11:00,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 11:11:00,892 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:11:00,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:11:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1519990136, now seen corresponding path program 1 times [2021-12-18 11:11:00,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:11:00,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651813032] [2021-12-18 11:11:00,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:11:00,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:11:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:11:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:11:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:11:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:11:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:11:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:11:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:11:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:11:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:11:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:11:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:11:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:11:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:11:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:11:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:11:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:11:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:11:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 11:11:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:11:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 11:11:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:11:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 11:11:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 11:11:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 11:11:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-18 11:11:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:11:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 11:11:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 11:11:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 11:11:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 11:11:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-18 11:11:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 11:11:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-18 11:11:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 11:11:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:11:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 11:11:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 11:11:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 11:11:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1327 trivial. 0 not checked. [2021-12-18 11:11:01,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:11:01,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651813032] [2021-12-18 11:11:01,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651813032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:11:01,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:11:01,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:11:01,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168766629] [2021-12-18 11:11:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:11:01,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:11:01,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:11:01,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:11:01,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:11:01,726 INFO L87 Difference]: Start difference. First operand 73458 states and 98032 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 5 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 11:11:03,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:11:06,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:11:29,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:11:29,482 INFO L93 Difference]: Finished difference Result 75277 states and 100910 transitions. [2021-12-18 11:11:29,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 11:11:29,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 5 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 323 [2021-12-18 11:11:29,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:11:29,821 INFO L225 Difference]: With dead ends: 75277 [2021-12-18 11:11:29,822 INFO L226 Difference]: Without dead ends: 74037 [2021-12-18 11:11:29,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-18 11:11:29,851 INFO L933 BasicCegarLoop]: 2326 mSDtfsCounter, 3501 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 3461 mSolverCounterSat, 2136 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3691 SdHoareTripleChecker+Valid, 6495 SdHoareTripleChecker+Invalid, 5599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2136 IncrementalHoareTripleChecker+Valid, 3461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:11:29,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3691 Valid, 6495 Invalid, 5599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2136 Valid, 3461 Invalid, 2 Unknown, 0 Unchecked, 23.9s Time] [2021-12-18 11:11:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74037 states. [2021-12-18 11:11:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74037 to 58301. [2021-12-18 11:11:32,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58301 states, 40160 states have (on average 1.2437250996015936) internal successors, (49948), 41173 states have internal predecessors, (49948), 13877 states have call successors, (13877), 4282 states have call predecessors, (13877), 4262 states have return successors, (13981), 13589 states have call predecessors, (13981), 13877 states have call successors, (13981) [2021-12-18 11:11:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58301 states to 58301 states and 77806 transitions. [2021-12-18 11:11:32,782 INFO L78 Accepts]: Start accepts. Automaton has 58301 states and 77806 transitions. Word has length 323 [2021-12-18 11:11:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:11:32,783 INFO L470 AbstractCegarLoop]: Abstraction has 58301 states and 77806 transitions. [2021-12-18 11:11:32,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 5 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 11:11:32,783 INFO L276 IsEmpty]: Start isEmpty. Operand 58301 states and 77806 transitions. [2021-12-18 11:11:32,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-12-18 11:11:32,793 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:11:32,793 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 3, 3, 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] [2021-12-18 11:11:32,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 11:11:32,794 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)] === [2021-12-18 11:11:32,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:11:32,794 INFO L85 PathProgramCache]: Analyzing trace with hash 196998257, now seen corresponding path program 1 times [2021-12-18 11:11:32,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:11:32,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887012472] [2021-12-18 11:11:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:11:32,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:11:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:11:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:11:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:11:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:11:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:11:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:11:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:11:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:11:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:11:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:11:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:11:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:11:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:11:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:11:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:11:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:11:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:11:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 11:11:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 11:11:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 11:11:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 11:11:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 11:11:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 11:11:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 11:11:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 11:11:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 11:11:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 11:11:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:11:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-12-18 11:11:33,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:11:33,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887012472] [2021-12-18 11:11:33,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887012472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:11:33,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:11:33,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:11:33,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426008828] [2021-12-18 11:11:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:11:33,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:11:33,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:11:33,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:11:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:11:33,562 INFO L87 Difference]: Start difference. First operand 58301 states and 77806 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 11:11:35,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:11:37,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:11:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:11:52,336 INFO L93 Difference]: Finished difference Result 132506 states and 177212 transitions. [2021-12-18 11:11:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:11:52,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 301 [2021-12-18 11:11:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:11:52,557 INFO L225 Difference]: With dead ends: 132506 [2021-12-18 11:11:52,558 INFO L226 Difference]: Without dead ends: 74625 [2021-12-18 11:11:52,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:11:52,676 INFO L933 BasicCegarLoop]: 3740 mSDtfsCounter, 1957 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 980 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 6624 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:11:52,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 6624 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [980 Valid, 1814 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2021-12-18 11:11:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74625 states. [2021-12-18 11:11:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74625 to 72721. [2021-12-18 11:11:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72721 states, 50292 states have (on average 1.2424242424242424) internal successors, (62484), 51517 states have internal predecessors, (62484), 17069 states have call successors, (17069), 5378 states have call predecessors, (17069), 5358 states have return successors, (17173), 16741 states have call predecessors, (17173), 17069 states have call successors, (17173) [2021-12-18 11:11:56,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72721 states to 72721 states and 96726 transitions. [2021-12-18 11:11:56,145 INFO L78 Accepts]: Start accepts. Automaton has 72721 states and 96726 transitions. Word has length 301 [2021-12-18 11:11:56,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:11:56,146 INFO L470 AbstractCegarLoop]: Abstraction has 72721 states and 96726 transitions. [2021-12-18 11:11:56,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 11:11:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand 72721 states and 96726 transitions. [2021-12-18 11:11:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-12-18 11:11:56,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:11:56,161 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 13, 13, 13, 13, 13, 13, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 11:11:56,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 11:11:56,161 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)] === [2021-12-18 11:11:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:11:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash 173808337, now seen corresponding path program 1 times [2021-12-18 11:11:56,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:11:56,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141979086] [2021-12-18 11:11:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:11:56,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:11:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:11:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:11:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:11:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:11:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:11:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:11:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:11:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:11:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:11:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:11:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:11:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:11:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:11:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:11:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 11:11:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 11:11:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:11:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 11:11:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 11:11:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 11:11:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 11:11:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 11:11:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:11:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:11:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 11:11:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:11:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:11:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-18 11:11:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 11:11:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-18 11:11:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:11:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 11:11:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-18 11:11:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-18 11:11:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 11:11:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 11:11:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 11:11:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:11:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2021-12-18 11:11:56,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:11:56,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141979086] [2021-12-18 11:11:56,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141979086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:11:56,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:11:56,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:11:56,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305382782] [2021-12-18 11:11:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:11:56,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:11:56,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:11:56,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:11:56,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:11:56,943 INFO L87 Difference]: Start difference. First operand 72721 states and 96726 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 11:11:58,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:12:01,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:12:16,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:12:16,196 INFO L93 Difference]: Finished difference Result 161719 states and 215594 transitions. [2021-12-18 11:12:16,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:12:16,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 375 [2021-12-18 11:12:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:12:16,672 INFO L225 Difference]: With dead ends: 161719 [2021-12-18 11:12:16,672 INFO L226 Difference]: Without dead ends: 88998 [2021-12-18 11:12:16,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:12:16,873 INFO L933 BasicCegarLoop]: 3775 mSDtfsCounter, 1953 mSDsluCounter, 2915 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 967 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:12:16,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2279 Valid, 6690 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 1805 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2021-12-18 11:12:16,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88998 states. [2021-12-18 11:12:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88998 to 86659. [2021-12-18 11:12:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86659 states, 60080 states have (on average 1.2418275632490012) internal successors, (74609), 61514 states have internal predecessors, (74609), 20157 states have call successors, (20157), 6440 states have call predecessors, (20157), 6420 states have return successors, (20261), 19790 states have call predecessors, (20261), 20157 states have call successors, (20261)