./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-mutex_drivers-media-usb-gspca-gspca_ov519.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-mutex_drivers-media-usb-gspca-gspca_ov519.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 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 10:22:47,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 10:22:47,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 10:22:47,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 10:22:47,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 10:22:47,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 10:22:47,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 10:22:47,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 10:22:47,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 10:22:47,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 10:22:47,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 10:22:47,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 10:22:47,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 10:22:47,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 10:22:47,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 10:22:47,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 10:22:47,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 10:22:47,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 10:22:47,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 10:22:47,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 10:22:47,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 10:22:47,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 10:22:47,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 10:22:47,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 10:22:47,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 10:22:47,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 10:22:47,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 10:22:47,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 10:22:47,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 10:22:47,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 10:22:47,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 10:22:47,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 10:22:47,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 10:22:47,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 10:22:47,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 10:22:47,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 10:22:47,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 10:22:47,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 10:22:47,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 10:22:47,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 10:22:47,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 10:22:47,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 10:22:47,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 10:22:47,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 10:22:47,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 10:22:47,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 10:22:47,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 10:22:47,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 10:22:47,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 10:22:47,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 10:22:47,860 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 10:22:47,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 10:22:47,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 10:22:47,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 10:22:47,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 10:22:47,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 10:22:47,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 10:22:47,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:22:47,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 10:22:47,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 10:22:47,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 10:22:47,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 10:22:47,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 10:22:47,864 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 10:22:47,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 10:22:47,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 10:22:47,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 10:22:47,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc [2021-12-18 10:22:48,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 10:22:48,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 10:22:48,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 10:22:48,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 10:22:48,081 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 10:22:48,082 INFO L432 ainManager$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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-12-18 10:22:48,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fa8fffc5/33a5239c775b422ba3058cf8745fbd11/FLAGb19483999 [2021-12-18 10:22:48,715 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 10:22:48,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-12-18 10:22:48,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fa8fffc5/33a5239c775b422ba3058cf8745fbd11/FLAGb19483999 [2021-12-18 10:22:48,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fa8fffc5/33a5239c775b422ba3058cf8745fbd11 [2021-12-18 10:22:48,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 10:22:48,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 10:22:48,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 10:22:48,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 10:22:48,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 10:22:48,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:22:48" (1/1) ... [2021-12-18 10:22:48,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bea95f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:48, skipping insertion in model container [2021-12-18 10:22:48,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:22:48" (1/1) ... [2021-12-18 10:22:48,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 10:22:49,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 10:22:50,301 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-12-18 10:22:50,303 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-12-18 10:22:50,303 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-12-18 10:22:50,304 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-12-18 10:22:50,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:22:50,371 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 10:22:50,659 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-12-18 10:22:50,659 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-12-18 10:22:50,660 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-12-18 10:22:50,660 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-12-18 10:22:50,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:22:50,808 INFO L208 MainTranslator]: Completed translation [2021-12-18 10:22:50,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50 WrapperNode [2021-12-18 10:22:50,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 10:22:50,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 10:22:50,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 10:22:50,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 10:22:50,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:50,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,143 INFO L137 Inliner]: procedures = 265, calls = 5685, calls flagged for inlining = 126, calls inlined = 112, statements flattened = 8297 [2021-12-18 10:22:51,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 10:22:51,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 10:22:51,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 10:22:51,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 10:22:51,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 10:22:51,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 10:22:51,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 10:22:51,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 10:22:51,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (1/1) ... [2021-12-18 10:22:51,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:22:51,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 10:22:51,612 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 10:22:51,617 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 10:22:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-12-18 10:22:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-12-18 10:22:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-12-18 10:22:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-12-18 10:22:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-12-18 10:22:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-12-18 10:22:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 10:22:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 10:22:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-12-18 10:22:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-12-18 10:22:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 10:22:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 10:22:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 10:22:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 10:22:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-12-18 10:22:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-12-18 10:22:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 10:22:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 10:22:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-12-18 10:22:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-12-18 10:22:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-12-18 10:22:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-12-18 10:22:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 10:22:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 10:22:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-12-18 10:22:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-12-18 10:22:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-12-18 10:22:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-12-18 10:22:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-12-18 10:22:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-12-18 10:22:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 10:22:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-18 10:22:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-18 10:22:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-12-18 10:22:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-12-18 10:22:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-12-18 10:22:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-12-18 10:22:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 10:22:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 10:22:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 10:22:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-12-18 10:22:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-12-18 10:22:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-12-18 10:22:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-12-18 10:22:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-18 10:22:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-18 10:22:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-12-18 10:22:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-12-18 10:22:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 10:22:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 10:22:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-18 10:22:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-18 10:22:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-12-18 10:22:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-12-18 10:22:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 10:22:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-12-18 10:22:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-12-18 10:22:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 10:22:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-12-18 10:22:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-12-18 10:22:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-12-18 10:22:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-12-18 10:22:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-12-18 10:22:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-12-18 10:22:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 10:22:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 10:22:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-18 10:22:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-18 10:22:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-12-18 10:22:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-12-18 10:22:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 10:22:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-12-18 10:22:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-12-18 10:22:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-12-18 10:22:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-12-18 10:22:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 10:22:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 10:22:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 10:22:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-12-18 10:22:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-12-18 10:22:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 10:22:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-12-18 10:22:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-12-18 10:22:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 10:22:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 10:22:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 10:22:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 10:22:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-12-18 10:22:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-12-18 10:22:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-12-18 10:22:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-12-18 10:22:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-12-18 10:22:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-12-18 10:22:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 10:22:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-12-18 10:22:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-12-18 10:22:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-18 10:22:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-18 10:22:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-12-18 10:22:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-12-18 10:22:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-12-18 10:22:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-12-18 10:22:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-12-18 10:22:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-12-18 10:22:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-12-18 10:22:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-12-18 10:22:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-12-18 10:22:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-12-18 10:22:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 10:22:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-12-18 10:22:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-12-18 10:22:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 10:22:51,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 10:22:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 10:22:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 10:22:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 10:22:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-12-18 10:22:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-12-18 10:22:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 10:22:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 10:22:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 10:22:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 10:22:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 10:22:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 10:22:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 10:22:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-18 10:22:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-18 10:22:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-12-18 10:22:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-12-18 10:22:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-12-18 10:22:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-12-18 10:22:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-12-18 10:22:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-12-18 10:22:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 10:22:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 10:22:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-12-18 10:22:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-12-18 10:22:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-12-18 10:22:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-12-18 10:22:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-12-18 10:22:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-12-18 10:22:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-12-18 10:22:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-12-18 10:22:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-12-18 10:22:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-12-18 10:22:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-12-18 10:22:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-12-18 10:22:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 10:22:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-12-18 10:22:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-12-18 10:22:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-12-18 10:22:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-12-18 10:22:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 10:22:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 10:22:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-12-18 10:22:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-12-18 10:22:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-12-18 10:22:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-12-18 10:22:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 10:22:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 10:22:52,177 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 10:22:52,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 10:23:01,692 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 10:26:30,150 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 10:26:30,332 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 10:26:30,356 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 10:26:30,356 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 10:26:30,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:26:30 BoogieIcfgContainer [2021-12-18 10:26:30,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 10:26:30,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 10:26:30,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 10:26:30,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 10:26:30,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:22:48" (1/3) ... [2021-12-18 10:26:30,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647c9111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:26:30, skipping insertion in model container [2021-12-18 10:26:30,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:22:50" (2/3) ... [2021-12-18 10:26:30,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647c9111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:26:30, skipping insertion in model container [2021-12-18 10:26:30,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:26:30" (3/3) ... [2021-12-18 10:26:30,381 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-12-18 10:26:30,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 10:26:30,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 10:26:30,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 10:26:30,436 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 10:26:30,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 10:26:30,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) [2021-12-18 10:26:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-18 10:26:30,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:26:30,495 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:26:30,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:26:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:26:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash 676699453, now seen corresponding path program 1 times [2021-12-18 10:26:30,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:26:30,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123353768] [2021-12-18 10:26:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:26:30,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:26:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:26:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:26:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:26:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:26:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:26:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:26:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:26:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:26:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:26:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:26:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:26:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 10:26:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:26:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-18 10:26:31,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:26:31,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123353768] [2021-12-18 10:26:31,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123353768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:26:31,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:26:31,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:26:31,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590487167] [2021-12-18 10:26:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:26:31,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:26:31,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:26:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:26:31,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:26:31,506 INFO L87 Difference]: Start difference. First operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 10:26:34,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:36,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:38,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:40,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:43,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:44,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:45,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:48,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:51,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:26:57,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:02,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:27:22,590 INFO L93 Difference]: Finished difference Result 6967 states and 11225 transitions. [2021-12-18 10:27:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:27:22,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2021-12-18 10:27:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:27:22,680 INFO L225 Difference]: With dead ends: 6967 [2021-12-18 10:27:22,681 INFO L226 Difference]: Without dead ends: 4855 [2021-12-18 10:27:22,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:27:22,716 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 4900 mSDsluCounter, 4556 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 2311 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5506 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 4779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2311 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:27:22,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5506 Valid, 8268 Invalid, 4779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2311 Valid, 2459 Invalid, 9 Unknown, 0 Unchecked, 50.2s Time] [2021-12-18 10:27:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2021-12-18 10:27:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4334. [2021-12-18 10:27:23,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 2916 states have (on average 1.4519890260631) internal successors, (4234), 3119 states have internal predecessors, (4234), 1274 states have call successors, (1274), 135 states have call predecessors, (1274), 143 states have return successors, (1410), 1143 states have call predecessors, (1410), 1270 states have call successors, (1410) [2021-12-18 10:27:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 6918 transitions. [2021-12-18 10:27:23,085 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 6918 transitions. Word has length 129 [2021-12-18 10:27:23,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:27:23,090 INFO L470 AbstractCegarLoop]: Abstraction has 4334 states and 6918 transitions. [2021-12-18 10:27:23,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 10:27:23,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 6918 transitions. [2021-12-18 10:27:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-18 10:27:23,133 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:27:23,134 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:27:23,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 10:27:23,134 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:27:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:27:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1410822559, now seen corresponding path program 1 times [2021-12-18 10:27:23,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:27:23,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082415079] [2021-12-18 10:27:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:27:23,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:27:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:27:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:27:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:27:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:27:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:27:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:27:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:27:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:27:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:27:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:27:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 10:27:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 10:27:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 10:27:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 10:27:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:27:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:27:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 10:27:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:27:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:27:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-18 10:27:24,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:27:24,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082415079] [2021-12-18 10:27:24,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082415079] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:27:24,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:27:24,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:27:24,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522135300] [2021-12-18 10:27:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:27:24,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:27:24,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:27:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:27:24,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:27:24,013 INFO L87 Difference]: Start difference. First operand 4334 states and 6918 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 10:27:27,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:29,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:32,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:34,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:36,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:37,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:39,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:40,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:41,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:46,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:27:51,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:05,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:14,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:28:28,881 INFO L93 Difference]: Finished difference Result 5787 states and 9463 transitions. [2021-12-18 10:28:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:28:28,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 188 [2021-12-18 10:28:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:28:28,940 INFO L225 Difference]: With dead ends: 5787 [2021-12-18 10:28:28,940 INFO L226 Difference]: Without dead ends: 5785 [2021-12-18 10:28:28,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 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 10:28:28,948 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 4223 mSDsluCounter, 8514 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 1956 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 12021 SdHoareTripleChecker+Invalid, 5854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1956 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:28:28,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4643 Valid, 12021 Invalid, 5854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1956 Valid, 3889 Invalid, 9 Unknown, 0 Unchecked, 63.8s Time] [2021-12-18 10:28:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5785 states. [2021-12-18 10:28:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 4818. [2021-12-18 10:28:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4818 states, 3271 states have (on average 1.4524610210944666) internal successors, (4751), 3496 states have internal predecessors, (4751), 1379 states have call successors, (1379), 165 states have call predecessors, (1379), 167 states have return successors, (1387), 1228 states have call predecessors, (1387), 1375 states have call successors, (1387) [2021-12-18 10:28:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 7517 transitions. [2021-12-18 10:28:29,185 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 7517 transitions. Word has length 188 [2021-12-18 10:28:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:28:29,187 INFO L470 AbstractCegarLoop]: Abstraction has 4818 states and 7517 transitions. [2021-12-18 10:28:29,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 10:28:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 7517 transitions. [2021-12-18 10:28:29,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-18 10:28:29,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:28:29,209 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:28:29,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 10:28:29,209 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:28:29,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:28:29,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1001375550, now seen corresponding path program 1 times [2021-12-18 10:28:29,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:28:29,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951558352] [2021-12-18 10:28:29,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:28:29,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:28:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:28:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:28:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:28:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:28:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:28:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:28:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:28:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:28:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:28:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:29,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:28:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 10:28:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 10:28:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 10:28:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 10:28:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:28:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:28:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 10:28:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:28:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 10:28:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:28:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-18 10:28:30,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:28:30,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951558352] [2021-12-18 10:28:30,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951558352] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:28:30,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:28:30,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:28:30,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963014499] [2021-12-18 10:28:30,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:28:30,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:28:30,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:28:30,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:28:30,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:28:30,075 INFO L87 Difference]: Start difference. First operand 4818 states and 7517 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 10:28:33,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:35,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:38,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:40,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:42,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:44,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:45,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:48,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:53,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:28:58,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:12,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:21,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:36,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:29:36,421 INFO L93 Difference]: Finished difference Result 5791 states and 9466 transitions. [2021-12-18 10:29:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:29:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 193 [2021-12-18 10:29:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:29:36,472 INFO L225 Difference]: With dead ends: 5791 [2021-12-18 10:29:36,472 INFO L226 Difference]: Without dead ends: 5789 [2021-12-18 10:29:36,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 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 10:29:36,483 INFO L933 BasicCegarLoop]: 3508 mSDtfsCounter, 4216 mSDsluCounter, 8508 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 1954 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 12016 SdHoareTripleChecker+Invalid, 5852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:29:36,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4638 Valid, 12016 Invalid, 5852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1954 Valid, 3888 Invalid, 10 Unknown, 0 Unchecked, 65.2s Time] [2021-12-18 10:29:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2021-12-18 10:29:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 4822. [2021-12-18 10:29:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 3274 states have (on average 1.4520464263897372) internal successors, (4754), 3499 states have internal predecessors, (4754), 1379 states have call successors, (1379), 166 states have call predecessors, (1379), 168 states have return successors, (1387), 1228 states have call predecessors, (1387), 1375 states have call successors, (1387) [2021-12-18 10:29:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 7520 transitions. [2021-12-18 10:29:36,728 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 7520 transitions. Word has length 193 [2021-12-18 10:29:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:29:36,729 INFO L470 AbstractCegarLoop]: Abstraction has 4822 states and 7520 transitions. [2021-12-18 10:29:36,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 10:29:36,730 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 7520 transitions. [2021-12-18 10:29:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 10:29:36,754 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:29:36,754 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:29:36,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 10:29:36,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:29:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:29:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2024634561, now seen corresponding path program 1 times [2021-12-18 10:29:36,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:29:36,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680543807] [2021-12-18 10:29:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:29:36,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:29:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:29:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:29:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:29:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:29:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:29:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:29:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:29:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:29:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:29:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:29:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 10:29:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 10:29:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 10:29:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 10:29:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:29:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:29:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 10:29:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:29:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 10:29:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 10:29:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:29:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-12-18 10:29:37,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:29:37,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680543807] [2021-12-18 10:29:37,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680543807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:29:37,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:29:37,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:29:37,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610862901] [2021-12-18 10:29:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:29:37,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:29:37,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:29:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:29:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:29:37,606 INFO L87 Difference]: Start difference. First operand 4822 states and 7520 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 10:29:40,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:43,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:45,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:48,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:50,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:52,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:55,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:57,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:29:59,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:03,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:08,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:23,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:32,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:30:47,188 INFO L93 Difference]: Finished difference Result 5795 states and 9469 transitions. [2021-12-18 10:30:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:30:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2021-12-18 10:30:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:30:47,250 INFO L225 Difference]: With dead ends: 5795 [2021-12-18 10:30:47,251 INFO L226 Difference]: Without dead ends: 5791 [2021-12-18 10:30:47,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 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 10:30:47,264 INFO L933 BasicCegarLoop]: 3502 mSDtfsCounter, 4216 mSDsluCounter, 8491 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 1954 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 11993 SdHoareTripleChecker+Invalid, 5852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.5s IncrementalHoareTripleChecker+Time [2021-12-18 10:30:47,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4643 Valid, 11993 Invalid, 5852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1954 Valid, 3889 Invalid, 9 Unknown, 0 Unchecked, 68.5s Time] [2021-12-18 10:30:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5791 states. [2021-12-18 10:30:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5791 to 4824. [2021-12-18 10:30:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4824 states, 3276 states have (on average 1.4514652014652014) internal successors, (4755), 3500 states have internal predecessors, (4755), 1379 states have call successors, (1379), 167 states have call predecessors, (1379), 168 states have return successors, (1387), 1228 states have call predecessors, (1387), 1375 states have call successors, (1387) [2021-12-18 10:30:47,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4824 states to 4824 states and 7521 transitions. [2021-12-18 10:30:47,555 INFO L78 Accepts]: Start accepts. Automaton has 4824 states and 7521 transitions. Word has length 198 [2021-12-18 10:30:47,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:30:47,555 INFO L470 AbstractCegarLoop]: Abstraction has 4824 states and 7521 transitions. [2021-12-18 10:30:47,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 10:30:47,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4824 states and 7521 transitions. [2021-12-18 10:30:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 10:30:47,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:30:47,585 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 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] [2021-12-18 10:30:47,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 10:30:47,585 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:30:47,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:30:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1462034119, now seen corresponding path program 1 times [2021-12-18 10:30:47,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:30:47,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318437312] [2021-12-18 10:30:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:30:47,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:30:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:30:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:30:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:30:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:30:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:30:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:30:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:30:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:30:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:30:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:30:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 10:30:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 10:30:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 10:30:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 10:30:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:30:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:30:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 10:30:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 10:30:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 10:30:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:30:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 10:30:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 10:30:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 10:30:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:30:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-12-18 10:30:48,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:30:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318437312] [2021-12-18 10:30:48,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318437312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:30:48,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:30:48,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:30:48,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553884380] [2021-12-18 10:30:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:30:48,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:30:48,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:30:48,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:30:48,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:30:48,277 INFO L87 Difference]: Start difference. First operand 4824 states and 7521 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:30:52,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:54,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:57,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:30:59,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:01,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:04,088 WARN L534 Checker$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 10:31:11,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:16,867 WARN L534 Checker$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 10:31:19,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:24,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:26,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:34,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:43,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:31:50,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:15,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:21,026 WARN L534 Checker$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 10:32:23,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:29,721 WARN L534 Checker$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 10:32:34,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 10:32:42,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:32:42,643 INFO L93 Difference]: Finished difference Result 11097 states and 17911 transitions. [2021-12-18 10:32:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:32:42,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 212 [2021-12-18 10:32:42,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:32:42,738 INFO L225 Difference]: With dead ends: 11097 [2021-12-18 10:32:42,738 INFO L226 Difference]: Without dead ends: 8084 [2021-12-18 10:32:42,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:32:42,762 INFO L933 BasicCegarLoop]: 5077 mSDtfsCounter, 5559 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 6334 mSolverCounterSat, 4733 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6050 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 11086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4733 IncrementalHoareTripleChecker+Valid, 6334 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.9s IncrementalHoareTripleChecker+Time [2021-12-18 10:32:42,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6050 Valid, 7569 Invalid, 11086 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4733 Valid, 6334 Invalid, 19 Unknown, 0 Unchecked, 112.9s Time] [2021-12-18 10:32:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8084 states. [2021-12-18 10:32:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8084 to 6845. [2021-12-18 10:32:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6845 states, 4662 states have (on average 1.4532389532389531) internal successors, (6775), 4974 states have internal predecessors, (6775), 1946 states have call successors, (1946), 231 states have call predecessors, (1946), 236 states have return successors, (2065), 1738 states have call predecessors, (2065), 1942 states have call successors, (2065) [2021-12-18 10:32:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 10786 transitions. [2021-12-18 10:32:43,121 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 10786 transitions. Word has length 212 [2021-12-18 10:32:43,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:32:43,121 INFO L470 AbstractCegarLoop]: Abstraction has 6845 states and 10786 transitions. [2021-12-18 10:32:43,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:32:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 10786 transitions. [2021-12-18 10:32:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-18 10:32:43,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:32:43,145 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 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] [2021-12-18 10:32:43,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 10:32:43,145 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:32:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:32:43,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2035949, now seen corresponding path program 1 times [2021-12-18 10:32:43,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:32:43,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037219045] [2021-12-18 10:32:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:32:43,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:32:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:32:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:32:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:32:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:32:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:32:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:32:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:32:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:32:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:32:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:32:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 10:32:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 10:32:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 10:32:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 10:32:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:32:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:32:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 10:32:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 10:32:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:32:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:32:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 10:32:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 10:32:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 10:32:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:32:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-12-18 10:32:43,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:32:43,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037219045] [2021-12-18 10:32:43,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037219045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:32:43,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:32:43,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:32:43,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447652849] [2021-12-18 10:32:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:32:43,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:32:43,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:32:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:32:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:32:43,739 INFO L87 Difference]: Start difference. First operand 6845 states and 10786 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:32:47,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:49,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:52,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:54,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:57,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:32:59,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:01,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:02,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:10,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:15,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:17,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:19,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:24,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:26,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:35,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:43,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:33:52,111 WARN L534 Checker$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 10:33:55,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:34:19,441 WARN L534 Checker$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 10:34:25,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:34:29,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 10:34:36,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 10:34:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:34:44,885 INFO L93 Difference]: Finished difference Result 15366 states and 24862 transitions. [2021-12-18 10:34:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:34:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 213 [2021-12-18 10:34:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:34:44,939 INFO L225 Difference]: With dead ends: 15366 [2021-12-18 10:34:44,940 INFO L226 Difference]: Without dead ends: 10332 [2021-12-18 10:34:44,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:34:44,973 INFO L933 BasicCegarLoop]: 5078 mSDtfsCounter, 5546 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 6343 mSolverCounterSat, 4703 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 7568 SdHoareTripleChecker+Invalid, 11066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4703 IncrementalHoareTripleChecker+Valid, 6343 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:34:44,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 7568 Invalid, 11066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4703 Valid, 6343 Invalid, 20 Unknown, 0 Unchecked, 119.6s Time] [2021-12-18 10:34:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10332 states. [2021-12-18 10:34:45,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10332 to 8644. [2021-12-18 10:34:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8644 states, 5889 states have (on average 1.4508405501782986) internal successors, (8544), 6275 states have internal predecessors, (8544), 2454 states have call successors, (2454), 295 states have call predecessors, (2454), 300 states have return successors, (2579), 2198 states have call predecessors, (2579), 2450 states have call successors, (2579) [2021-12-18 10:34:45,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 13577 transitions. [2021-12-18 10:34:45,389 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 13577 transitions. Word has length 213 [2021-12-18 10:34:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:34:45,391 INFO L470 AbstractCegarLoop]: Abstraction has 8644 states and 13577 transitions. [2021-12-18 10:34:45,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:34:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 13577 transitions. [2021-12-18 10:34:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-18 10:34:45,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:34:45,411 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:34:45,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 10:34:45,412 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:34:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:34:45,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1157355170, now seen corresponding path program 1 times [2021-12-18 10:34:45,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:34:45,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560329623] [2021-12-18 10:34:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:34:45,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:34:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:34:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:34:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:34:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:34:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:34:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:34:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:34:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:34:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:34:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:34:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 10:34:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 10:34:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 10:34:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 10:34:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:34:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 10:34:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 10:34:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 10:34:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 10:34:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 10:34:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 10:34:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:34:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-18 10:34:46,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:34:46,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560329623] [2021-12-18 10:34:46,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560329623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:34:46,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:34:46,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:34:46,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823710694] [2021-12-18 10:34:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:34:46,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:34:46,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:34:46,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:34:46,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:34:46,102 INFO L87 Difference]: Start difference. First operand 8644 states and 13577 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 10:34:49,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:34:51,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:34:54,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:34:56,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:34:58,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:00,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:01,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:03,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:09,239 WARN L534 Checker$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 10:35:14,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:29,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:38,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:35:53,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:35:53,407 INFO L93 Difference]: Finished difference Result 10326 states and 16877 transitions. [2021-12-18 10:35:53,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:35:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 203 [2021-12-18 10:35:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:35:53,409 INFO L225 Difference]: With dead ends: 10326 [2021-12-18 10:35:53,409 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 10:35:53,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 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 10:35:53,486 INFO L933 BasicCegarLoop]: 3500 mSDtfsCounter, 4212 mSDsluCounter, 8495 mSDsCounter, 0 mSdLazyCounter, 3881 mSolverCounterSat, 1964 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4634 SdHoareTripleChecker+Valid, 11995 SdHoareTripleChecker+Invalid, 5854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1964 IncrementalHoareTripleChecker+Valid, 3881 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.9s IncrementalHoareTripleChecker+Time [2021-12-18 10:35:53,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4634 Valid, 11995 Invalid, 5854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1964 Valid, 3881 Invalid, 9 Unknown, 0 Unchecked, 65.9s Time] [2021-12-18 10:35:53,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 10:35:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 10:35:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 10:35:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 10:35:53,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 203 [2021-12-18 10:35:53,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:35:53,490 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 10:35:53,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 10:35:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 10:35:53,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 10:35:53,492 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 10:35:53,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 10:35:53,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15