./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:51:02,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:51:02,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:51:02,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:51:02,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:51:02,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:51:02,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:51:02,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:51:02,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:51:02,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:51:02,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:51:02,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:51:02,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:51:02,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:51:02,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:51:02,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:51:02,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:51:02,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:51:02,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:51:02,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:51:02,830 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:51:02,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:51:02,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:51:02,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:51:02,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:51:02,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:51:02,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:51:02,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:51:02,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:51:02,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:51:02,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:51:02,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:51:02,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:51:02,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:51:02,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:51:02,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:51:02,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:51:02,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:51:02,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:51:02,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:51:02,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:51:02,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:51:02,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:51:02,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:51:02,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:51:02,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:51:02,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:51:02,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:51:02,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:51:02,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:51:02,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:51:02,880 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:51:02,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:51:02,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:51:02,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:51:02,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:51:02,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:51:02,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:51:02,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:51:02,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:51:02,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:51:02,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:51:02,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:51:02,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:51:02,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:51:02,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:51:02,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:51:02,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:51:02,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:51:02,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:51:02,890 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:51:02,890 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:51:02,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:51:02,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2022-07-21 13:51:03,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:51:03,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:51:03,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:51:03,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:51:03,218 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:51:03,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-07-21 13:51:03,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32fef06b/a5bb959f6828498bb52b2fdf99723b5a/FLAG9f64205d8 [2022-07-21 13:51:03,865 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:51:03,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-07-21 13:51:03,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32fef06b/a5bb959f6828498bb52b2fdf99723b5a/FLAG9f64205d8 [2022-07-21 13:51:04,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32fef06b/a5bb959f6828498bb52b2fdf99723b5a [2022-07-21 13:51:04,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:51:04,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:51:04,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:51:04,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:51:04,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:51:04,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:04" (1/1) ... [2022-07-21 13:51:04,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c59f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:04, skipping insertion in model container [2022-07-21 13:51:04,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:04" (1/1) ... [2022-07-21 13:51:04,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:51:04,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:51:06,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2022-07-21 13:51:06,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2022-07-21 13:51:06,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2022-07-21 13:51:06,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2022-07-21 13:51:06,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:51:06,093 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:51:06,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2022-07-21 13:51:06,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2022-07-21 13:51:06,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2022-07-21 13:51:06,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2022-07-21 13:51:06,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:51:06,459 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:51:06,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06 WrapperNode [2022-07-21 13:51:06,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:51:06,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:51:06,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:51:06,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:51:06,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,676 INFO L137 Inliner]: procedures = 459, calls = 1765, calls flagged for inlining = 217, calls inlined = 199, statements flattened = 4510 [2022-07-21 13:51:06,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:51:06,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:51:06,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:51:06,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:51:06,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:51:06,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:51:06,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:51:06,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:51:06,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (1/1) ... [2022-07-21 13:51:06,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:51:06,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:51:06,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 13:51:06,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 13:51:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2022-07-21 13:51:07,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2022-07-21 13:51:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:51:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:51:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2022-07-21 13:51:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2022-07-21 13:51:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:51:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:51:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2022-07-21 13:51:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2022-07-21 13:51:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-21 13:51:07,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-21 13:51:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:51:07,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:51:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 13:51:07,002 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 13:51:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:51:07,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:51:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 13:51:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 13:51:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2022-07-21 13:51:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2022-07-21 13:51:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-07-21 13:51:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-07-21 13:51:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-21 13:51:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-21 13:51:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2022-07-21 13:51:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2022-07-21 13:51:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 13:51:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 13:51:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2022-07-21 13:51:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2022-07-21 13:51:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:51:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:51:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 13:51:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 13:51:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 13:51:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 13:51:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:51:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:51:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:51:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:51:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 13:51:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 13:51:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 13:51:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 13:51:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:51:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:51:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:51:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:51:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:51:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 13:51:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 13:51:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2022-07-21 13:51:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2022-07-21 13:51:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:51:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:51:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 13:51:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 13:51:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:51:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:51:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:51:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:51:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:51:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 13:51:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 13:51:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:51:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:51:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:51:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:51:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 13:51:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 13:51:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 13:51:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 13:51:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:51:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:51:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:51:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:51:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2022-07-21 13:51:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2022-07-21 13:51:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:51:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:51:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:51:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 13:51:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 13:51:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-21 13:51:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-21 13:51:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:51:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:51:07,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:51:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:51:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2022-07-21 13:51:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2022-07-21 13:51:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2022-07-21 13:51:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2022-07-21 13:51:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:51:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:51:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-21 13:51:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-21 13:51:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:51:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:51:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 13:51:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 13:51:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 13:51:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 13:51:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 13:51:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 13:51:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2022-07-21 13:51:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2022-07-21 13:51:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2022-07-21 13:51:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2022-07-21 13:51:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:51:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:51:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:51:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:51:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-21 13:51:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-21 13:51:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:51:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:51:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:51:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:51:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2022-07-21 13:51:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2022-07-21 13:51:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2022-07-21 13:51:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2022-07-21 13:51:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2022-07-21 13:51:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2022-07-21 13:51:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:51:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:51:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 13:51:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 13:51:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:51:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:51:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-21 13:51:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-21 13:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 13:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 13:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 13:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 13:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-21 13:51:07,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-21 13:51:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-21 13:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-21 13:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 13:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 13:51:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 13:51:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 13:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2022-07-21 13:51:07,031 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2022-07-21 13:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-21 13:51:07,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-21 13:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-07-21 13:51:07,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-07-21 13:51:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 13:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 13:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 13:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 13:51:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:51:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 13:51:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 13:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 13:51:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 13:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 13:51:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 13:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:51:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:51:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2022-07-21 13:51:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2022-07-21 13:51:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-07-21 13:51:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-07-21 13:51:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2022-07-21 13:51:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2022-07-21 13:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-21 13:51:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-21 13:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:51:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 13:51:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 13:51:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2022-07-21 13:51:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2022-07-21 13:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-21 13:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-21 13:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2022-07-21 13:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2022-07-21 13:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 13:51:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-21 13:51:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2022-07-21 13:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2022-07-21 13:51:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2022-07-21 13:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2022-07-21 13:51:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2022-07-21 13:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2022-07-21 13:51:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 13:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 13:51:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 13:51:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 13:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2022-07-21 13:51:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2022-07-21 13:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:51:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2022-07-21 13:51:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2022-07-21 13:51:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2022-07-21 13:51:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2022-07-21 13:51:07,704 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:51:07,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:51:07,877 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:51:09,544 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:51:09,623 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:51:09,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:51:09,636 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 13:51:09,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:51:09 BoogieIcfgContainer [2022-07-21 13:51:09,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:51:09,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:51:09,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:51:09,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:51:09,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:51:04" (1/3) ... [2022-07-21 13:51:09,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7518364b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:51:09, skipping insertion in model container [2022-07-21 13:51:09,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:06" (2/3) ... [2022-07-21 13:51:09,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7518364b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:51:09, skipping insertion in model container [2022-07-21 13:51:09,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:51:09" (3/3) ... [2022-07-21 13:51:09,646 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-07-21 13:51:09,658 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:51:09,658 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:51:09,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:51:09,729 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@19b5616e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1a1b08d8 [2022-07-21 13:51:09,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:51:09,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 1899 states, 1285 states have (on average 1.3011673151750973) internal successors, (1672), 1317 states have internal predecessors, (1672), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) [2022-07-21 13:51:09,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 13:51:09,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:09,751 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:09,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:09,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:09,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1511978544, now seen corresponding path program 1 times [2022-07-21 13:51:09,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:09,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199524909] [2022-07-21 13:51:09,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:09,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 13:51:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-21 13:51:10,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:10,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199524909] [2022-07-21 13:51:10,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199524909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:10,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:10,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:51:10,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679029539] [2022-07-21 13:51:10,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:10,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:51:10,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:10,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:51:10,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:51:10,360 INFO L87 Difference]: Start difference. First operand has 1899 states, 1285 states have (on average 1.3011673151750973) internal successors, (1672), 1317 states have internal predecessors, (1672), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 13:51:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:14,042 INFO L93 Difference]: Finished difference Result 5727 states and 8328 transitions. [2022-07-21 13:51:14,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:51:14,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2022-07-21 13:51:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:14,080 INFO L225 Difference]: With dead ends: 5727 [2022-07-21 13:51:14,081 INFO L226 Difference]: Without dead ends: 3837 [2022-07-21 13:51:14,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:14,099 INFO L413 NwaCegarLoop]: 2737 mSDtfsCounter, 3409 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 1566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3895 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1566 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:14,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3895 Valid, 4941 Invalid, 3907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1566 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 13:51:14,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3837 states. [2022-07-21 13:51:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3837 to 3689. [2022-07-21 13:51:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2511 states have (on average 1.2453205894066108) internal successors, (3127), 2573 states have internal predecessors, (3127), 972 states have call successors, (972), 204 states have call predecessors, (972), 203 states have return successors, (969), 961 states have call predecessors, (969), 969 states have call successors, (969) [2022-07-21 13:51:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5068 transitions. [2022-07-21 13:51:14,301 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5068 transitions. Word has length 101 [2022-07-21 13:51:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:14,301 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5068 transitions. [2022-07-21 13:51:14,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 13:51:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5068 transitions. [2022-07-21 13:51:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 13:51:14,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:14,306 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:14,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:51:14,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:14,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:14,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1750582024, now seen corresponding path program 1 times [2022-07-21 13:51:14,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:14,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362231015] [2022-07-21 13:51:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:14,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 13:51:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-21 13:51:14,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:14,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362231015] [2022-07-21 13:51:14,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362231015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:14,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:14,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:51:14,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50346411] [2022-07-21 13:51:14,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:14,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:51:14,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:14,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:51:14,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:51:14,488 INFO L87 Difference]: Start difference. First operand 3689 states and 5068 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 13:51:17,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:17,934 INFO L93 Difference]: Finished difference Result 10611 states and 14599 transitions. [2022-07-21 13:51:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:51:17,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2022-07-21 13:51:17,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:17,970 INFO L225 Difference]: With dead ends: 10611 [2022-07-21 13:51:17,971 INFO L226 Difference]: Without dead ends: 6941 [2022-07-21 13:51:17,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:17,989 INFO L413 NwaCegarLoop]: 2661 mSDtfsCounter, 2945 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 1546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1546 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:17,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3356 Valid, 4842 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1546 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 13:51:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2022-07-21 13:51:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6730. [2022-07-21 13:51:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6730 states, 4537 states have (on average 1.2382631694952613) internal successors, (5618), 4665 states have internal predecessors, (5618), 1789 states have call successors, (1789), 394 states have call predecessors, (1789), 401 states have return successors, (1816), 1772 states have call predecessors, (1816), 1786 states have call successors, (1816) [2022-07-21 13:51:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6730 states to 6730 states and 9223 transitions. [2022-07-21 13:51:18,296 INFO L78 Accepts]: Start accepts. Automaton has 6730 states and 9223 transitions. Word has length 114 [2022-07-21 13:51:18,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:18,296 INFO L495 AbstractCegarLoop]: Abstraction has 6730 states and 9223 transitions. [2022-07-21 13:51:18,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 13:51:18,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6730 states and 9223 transitions. [2022-07-21 13:51:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 13:51:18,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:18,299 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:18,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:51:18,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash -357064940, now seen corresponding path program 1 times [2022-07-21 13:51:18,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:18,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704267530] [2022-07-21 13:51:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:51:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-21 13:51:18,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:18,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704267530] [2022-07-21 13:51:18,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704267530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:18,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:18,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:51:18,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741201376] [2022-07-21 13:51:18,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:18,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:51:18,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:18,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:51:18,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:51:18,535 INFO L87 Difference]: Start difference. First operand 6730 states and 9223 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 13:51:24,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:24,311 INFO L93 Difference]: Finished difference Result 15942 states and 21846 transitions. [2022-07-21 13:51:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:51:24,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 115 [2022-07-21 13:51:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:24,362 INFO L225 Difference]: With dead ends: 15942 [2022-07-21 13:51:24,362 INFO L226 Difference]: Without dead ends: 9231 [2022-07-21 13:51:24,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:51:24,388 INFO L413 NwaCegarLoop]: 3362 mSDtfsCounter, 6086 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 6709 mSolverCounterSat, 2788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6921 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 9497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2788 IncrementalHoareTripleChecker+Valid, 6709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:24,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6921 Valid, 7139 Invalid, 9497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2788 Valid, 6709 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-21 13:51:24,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9231 states. [2022-07-21 13:51:24,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9231 to 8779. [2022-07-21 13:51:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8779 states, 5907 states have (on average 1.23463687150838) internal successors, (7293), 6082 states have internal predecessors, (7293), 2299 states have call successors, (2299), 566 states have call predecessors, (2299), 570 states have return successors, (2308), 2271 states have call predecessors, (2308), 2296 states have call successors, (2308) [2022-07-21 13:51:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8779 states to 8779 states and 11900 transitions. [2022-07-21 13:51:24,718 INFO L78 Accepts]: Start accepts. Automaton has 8779 states and 11900 transitions. Word has length 115 [2022-07-21 13:51:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:24,719 INFO L495 AbstractCegarLoop]: Abstraction has 8779 states and 11900 transitions. [2022-07-21 13:51:24,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 13:51:24,720 INFO L276 IsEmpty]: Start isEmpty. Operand 8779 states and 11900 transitions. [2022-07-21 13:51:24,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 13:51:24,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:24,725 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-07-21 13:51:24,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:51:24,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:24,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash -486572428, now seen corresponding path program 1 times [2022-07-21 13:51:24,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:24,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741020809] [2022-07-21 13:51:24,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:24,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 13:51:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 13:51:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 13:51:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-07-21 13:51:24,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:24,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741020809] [2022-07-21 13:51:24,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741020809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:24,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:24,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:51:24,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730600071] [2022-07-21 13:51:24,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:24,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:51:24,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:24,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:51:24,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:51:24,898 INFO L87 Difference]: Start difference. First operand 8779 states and 11900 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:51:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:27,681 INFO L93 Difference]: Finished difference Result 25047 states and 34121 transitions. [2022-07-21 13:51:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:51:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2022-07-21 13:51:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:27,755 INFO L225 Difference]: With dead ends: 25047 [2022-07-21 13:51:27,756 INFO L226 Difference]: Without dead ends: 16287 [2022-07-21 13:51:27,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:27,791 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 3220 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 1549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1549 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:27,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3661 Valid, 4975 Invalid, 3744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1549 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 13:51:27,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16287 states. [2022-07-21 13:51:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16287 to 15475. [2022-07-21 13:51:28,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15475 states, 10437 states have (on average 1.2373287343106256) internal successors, (12914), 10756 states have internal predecessors, (12914), 4011 states have call successors, (4011), 1023 states have call predecessors, (4011), 1024 states have return successors, (4052), 3937 states have call predecessors, (4052), 4008 states have call successors, (4052) [2022-07-21 13:51:28,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15475 states to 15475 states and 20977 transitions. [2022-07-21 13:51:28,276 INFO L78 Accepts]: Start accepts. Automaton has 15475 states and 20977 transitions. Word has length 119 [2022-07-21 13:51:28,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:28,278 INFO L495 AbstractCegarLoop]: Abstraction has 15475 states and 20977 transitions. [2022-07-21 13:51:28,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:51:28,278 INFO L276 IsEmpty]: Start isEmpty. Operand 15475 states and 20977 transitions. [2022-07-21 13:51:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-21 13:51:28,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:28,280 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-07-21 13:51:28,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:51:28,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:28,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1436514206, now seen corresponding path program 1 times [2022-07-21 13:51:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:28,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216967646] [2022-07-21 13:51:28,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:28,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 13:51:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 13:51:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 13:51:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-07-21 13:51:28,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:28,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216967646] [2022-07-21 13:51:28,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216967646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:28,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:28,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:51:28,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588055046] [2022-07-21 13:51:28,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:28,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:51:28,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:28,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:51:28,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:51:28,506 INFO L87 Difference]: Start difference. First operand 15475 states and 20977 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 13:51:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:31,461 INFO L93 Difference]: Finished difference Result 43967 states and 59632 transitions. [2022-07-21 13:51:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:51:31,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2022-07-21 13:51:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:31,722 INFO L225 Difference]: With dead ends: 43967 [2022-07-21 13:51:31,722 INFO L226 Difference]: Without dead ends: 28511 [2022-07-21 13:51:31,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:31,771 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 3209 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 1486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3652 SdHoareTripleChecker+Valid, 5598 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1486 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:31,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3652 Valid, 5598 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1486 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 13:51:31,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28511 states. [2022-07-21 13:51:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28511 to 27129. [2022-07-21 13:51:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27129 states, 18444 states have (on average 1.232216438950336) internal successors, (22727), 18959 states have internal predecessors, (22727), 6842 states have call successors, (6842), 1847 states have call predecessors, (6842), 1840 states have return successors, (6920), 6678 states have call predecessors, (6920), 6839 states have call successors, (6920) [2022-07-21 13:51:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27129 states to 27129 states and 36489 transitions. [2022-07-21 13:51:32,499 INFO L78 Accepts]: Start accepts. Automaton has 27129 states and 36489 transitions. Word has length 121 [2022-07-21 13:51:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:32,499 INFO L495 AbstractCegarLoop]: Abstraction has 27129 states and 36489 transitions. [2022-07-21 13:51:32,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 13:51:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 27129 states and 36489 transitions. [2022-07-21 13:51:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 13:51:32,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:32,622 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-21 13:51:32,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:51:32,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:32,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1989039821, now seen corresponding path program 1 times [2022-07-21 13:51:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:32,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814143946] [2022-07-21 13:51:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:51:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:51:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:51:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:51:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:51:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:51:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:51:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-21 13:51:32,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:32,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814143946] [2022-07-21 13:51:32,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814143946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:32,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:32,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:51:32,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723420262] [2022-07-21 13:51:32,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:32,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:51:32,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:32,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:51:32,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:51:32,790 INFO L87 Difference]: Start difference. First operand 27129 states and 36489 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:51:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:36,732 INFO L93 Difference]: Finished difference Result 82920 states and 112153 transitions. [2022-07-21 13:51:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:51:36,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 153 [2022-07-21 13:51:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:37,018 INFO L225 Difference]: With dead ends: 82920 [2022-07-21 13:51:37,018 INFO L226 Difference]: Without dead ends: 55856 [2022-07-21 13:51:37,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:37,119 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 3383 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 1588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1588 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:37,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 5067 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1588 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 13:51:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55856 states. [2022-07-21 13:51:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55856 to 53152. [2022-07-21 13:51:38,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53152 states, 36170 states have (on average 1.2333701962952723) internal successors, (44611), 37134 states have internal predecessors, (44611), 13372 states have call successors, (13372), 3620 states have call predecessors, (13372), 3607 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:51:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53152 states to 53152 states and 71514 transitions. [2022-07-21 13:51:39,152 INFO L78 Accepts]: Start accepts. Automaton has 53152 states and 71514 transitions. Word has length 153 [2022-07-21 13:51:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:39,153 INFO L495 AbstractCegarLoop]: Abstraction has 53152 states and 71514 transitions. [2022-07-21 13:51:39,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:51:39,154 INFO L276 IsEmpty]: Start isEmpty. Operand 53152 states and 71514 transitions. [2022-07-21 13:51:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 13:51:39,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:39,156 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-21 13:51:39,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 13:51:39,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:39,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1883225649, now seen corresponding path program 1 times [2022-07-21 13:51:39,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:39,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94034106] [2022-07-21 13:51:39,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:51:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:51:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:51:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:51:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:51:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:51:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:51:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-21 13:51:39,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:39,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94034106] [2022-07-21 13:51:39,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94034106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:39,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:39,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:39,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275539629] [2022-07-21 13:51:39,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:39,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:39,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:39,578 INFO L87 Difference]: Start difference. First operand 53152 states and 71514 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 13:51:42,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:42,896 INFO L93 Difference]: Finished difference Result 55838 states and 75688 transitions. [2022-07-21 13:51:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:42,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2022-07-21 13:51:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:43,262 INFO L225 Difference]: With dead ends: 55838 [2022-07-21 13:51:43,263 INFO L226 Difference]: Without dead ends: 55836 [2022-07-21 13:51:43,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:43,284 INFO L413 NwaCegarLoop]: 2402 mSDtfsCounter, 2706 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 5932 SdHoareTripleChecker+Invalid, 4246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1108 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:43,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2999 Valid, 5932 Invalid, 4246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1108 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 13:51:43,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55836 states. [2022-07-21 13:51:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55836 to 53156. [2022-07-21 13:51:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53156 states, 36173 states have (on average 1.233350841788074) internal successors, (44614), 37137 states have internal predecessors, (44614), 13372 states have call successors, (13372), 3621 states have call predecessors, (13372), 3608 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:51:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53156 states to 53156 states and 71517 transitions. [2022-07-21 13:51:45,027 INFO L78 Accepts]: Start accepts. Automaton has 53156 states and 71517 transitions. Word has length 153 [2022-07-21 13:51:45,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:45,028 INFO L495 AbstractCegarLoop]: Abstraction has 53156 states and 71517 transitions. [2022-07-21 13:51:45,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 13:51:45,028 INFO L276 IsEmpty]: Start isEmpty. Operand 53156 states and 71517 transitions. [2022-07-21 13:51:45,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 13:51:45,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:45,030 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-21 13:51:45,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 13:51:45,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:45,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:45,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1651165807, now seen corresponding path program 1 times [2022-07-21 13:51:45,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:45,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403780930] [2022-07-21 13:51:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:51:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:51:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:51:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:51:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:51:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:51:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:51:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-21 13:51:45,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:45,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403780930] [2022-07-21 13:51:45,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403780930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:45,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:45,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:45,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457216773] [2022-07-21 13:51:45,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:45,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:45,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:45,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:45,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:45,242 INFO L87 Difference]: Start difference. First operand 53156 states and 71517 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:51:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:48,604 INFO L93 Difference]: Finished difference Result 55842 states and 75691 transitions. [2022-07-21 13:51:48,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:48,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-21 13:51:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:48,874 INFO L225 Difference]: With dead ends: 55842 [2022-07-21 13:51:48,874 INFO L226 Difference]: Without dead ends: 55840 [2022-07-21 13:51:48,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:48,896 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:48,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1107 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 13:51:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55840 states. [2022-07-21 13:51:50,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55840 to 53160. [2022-07-21 13:51:50,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53160 states, 36176 states have (on average 1.2333314904909332) internal successors, (44617), 37140 states have internal predecessors, (44617), 13372 states have call successors, (13372), 3622 states have call predecessors, (13372), 3609 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:51:50,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53160 states to 53160 states and 71520 transitions. [2022-07-21 13:51:50,707 INFO L78 Accepts]: Start accepts. Automaton has 53160 states and 71520 transitions. Word has length 158 [2022-07-21 13:51:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:50,708 INFO L495 AbstractCegarLoop]: Abstraction has 53160 states and 71520 transitions. [2022-07-21 13:51:50,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:51:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 53160 states and 71520 transitions. [2022-07-21 13:51:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 13:51:50,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:50,732 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:50,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 13:51:50,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:50,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash -835076721, now seen corresponding path program 1 times [2022-07-21 13:51:50,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:50,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978840351] [2022-07-21 13:51:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:51:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:51:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:51:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:51:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:51:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:51:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:51:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:51:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-21 13:51:50,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:50,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978840351] [2022-07-21 13:51:50,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978840351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:50,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:50,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:50,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037734028] [2022-07-21 13:51:50,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:50,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:50,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:50,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:50,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:50,964 INFO L87 Difference]: Start difference. First operand 53160 states and 71520 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:51:54,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:54,770 INFO L93 Difference]: Finished difference Result 55846 states and 75694 transitions. [2022-07-21 13:51:54,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 163 [2022-07-21 13:51:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:54,936 INFO L225 Difference]: With dead ends: 55846 [2022-07-21 13:51:54,936 INFO L226 Difference]: Without dead ends: 55844 [2022-07-21 13:51:54,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:54,958 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1106 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:54,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1106 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 13:51:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55844 states. [2022-07-21 13:51:56,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55844 to 53164. [2022-07-21 13:51:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53164 states, 36179 states have (on average 1.2333121424030515) internal successors, (44620), 37143 states have internal predecessors, (44620), 13372 states have call successors, (13372), 3623 states have call predecessors, (13372), 3610 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:51:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53164 states to 53164 states and 71523 transitions. [2022-07-21 13:51:56,645 INFO L78 Accepts]: Start accepts. Automaton has 53164 states and 71523 transitions. Word has length 163 [2022-07-21 13:51:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:56,646 INFO L495 AbstractCegarLoop]: Abstraction has 53164 states and 71523 transitions. [2022-07-21 13:51:56,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:51:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 53164 states and 71523 transitions. [2022-07-21 13:51:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 13:51:56,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:56,648 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-07-21 13:51:56,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 13:51:56,648 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:56,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1937954351, now seen corresponding path program 1 times [2022-07-21 13:51:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:56,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653463810] [2022-07-21 13:51:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:56,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:51:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:51:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:51:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:51:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:51:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:51:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:51:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:51:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:51:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:51:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-07-21 13:51:57,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:57,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653463810] [2022-07-21 13:51:57,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653463810] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:57,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:57,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:57,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564555502] [2022-07-21 13:51:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:57,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:57,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:57,029 INFO L87 Difference]: Start difference. First operand 53164 states and 71523 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 13:52:00,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:00,563 INFO L93 Difference]: Finished difference Result 55850 states and 75697 transitions. [2022-07-21 13:52:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:00,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 168 [2022-07-21 13:52:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:00,772 INFO L225 Difference]: With dead ends: 55850 [2022-07-21 13:52:00,772 INFO L226 Difference]: Without dead ends: 55848 [2022-07-21 13:52:00,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:52:00,803 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1105 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:00,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1105 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 13:52:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55848 states. [2022-07-21 13:52:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55848 to 53168. [2022-07-21 13:52:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53168 states, 36182 states have (on average 1.2332927975236305) internal successors, (44623), 37146 states have internal predecessors, (44623), 13372 states have call successors, (13372), 3624 states have call predecessors, (13372), 3611 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:52:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53168 states to 53168 states and 71526 transitions. [2022-07-21 13:52:02,901 INFO L78 Accepts]: Start accepts. Automaton has 53168 states and 71526 transitions. Word has length 168 [2022-07-21 13:52:02,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:02,902 INFO L495 AbstractCegarLoop]: Abstraction has 53168 states and 71526 transitions. [2022-07-21 13:52:02,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 13:52:02,902 INFO L276 IsEmpty]: Start isEmpty. Operand 53168 states and 71526 transitions. [2022-07-21 13:52:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 13:52:02,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:02,905 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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] [2022-07-21 13:52:02,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 13:52:02,905 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:02,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:02,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1186121393, now seen corresponding path program 1 times [2022-07-21 13:52:02,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:02,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920195747] [2022-07-21 13:52:02,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:02,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:52:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:52:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:52:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:52:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:52:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:52:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:52:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:52:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:52:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:52:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-21 13:52:03,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:03,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920195747] [2022-07-21 13:52:03,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920195747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:03,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:03,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:03,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335865752] [2022-07-21 13:52:03,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:03,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:03,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:03,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:03,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:03,114 INFO L87 Difference]: Start difference. First operand 53168 states and 71526 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 13:52:06,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:06,382 INFO L93 Difference]: Finished difference Result 55854 states and 75700 transitions. [2022-07-21 13:52:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:06,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 173 [2022-07-21 13:52:06,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:06,569 INFO L225 Difference]: With dead ends: 55854 [2022-07-21 13:52:06,570 INFO L226 Difference]: Without dead ends: 55852 [2022-07-21 13:52:06,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:52:06,600 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1104 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:06,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1104 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 13:52:06,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55852 states. [2022-07-21 13:52:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55852 to 53172. [2022-07-21 13:52:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53172 states, 36185 states have (on average 1.2332734558518723) internal successors, (44626), 37149 states have internal predecessors, (44626), 13372 states have call successors, (13372), 3625 states have call predecessors, (13372), 3612 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:52:08,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53172 states to 53172 states and 71529 transitions. [2022-07-21 13:52:08,809 INFO L78 Accepts]: Start accepts. Automaton has 53172 states and 71529 transitions. Word has length 173 [2022-07-21 13:52:08,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:08,810 INFO L495 AbstractCegarLoop]: Abstraction has 53172 states and 71529 transitions. [2022-07-21 13:52:08,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 13:52:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 53172 states and 71529 transitions. [2022-07-21 13:52:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 13:52:08,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:08,813 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:08,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 13:52:08,813 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:08,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:08,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1472142865, now seen corresponding path program 1 times [2022-07-21 13:52:08,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:08,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237525926] [2022-07-21 13:52:08,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:08,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:52:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:52:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:52:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:52:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:52:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:08,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:52:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:52:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:52:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:52:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:52:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:52:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-07-21 13:52:09,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:09,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237525926] [2022-07-21 13:52:09,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237525926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:09,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:09,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:09,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916052256] [2022-07-21 13:52:09,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:09,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:09,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:09,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:09,036 INFO L87 Difference]: Start difference. First operand 53172 states and 71529 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 13:52:12,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:12,711 INFO L93 Difference]: Finished difference Result 55858 states and 75703 transitions. [2022-07-21 13:52:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:52:12,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 178 [2022-07-21 13:52:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:12,888 INFO L225 Difference]: With dead ends: 55858 [2022-07-21 13:52:12,888 INFO L226 Difference]: Without dead ends: 55856 [2022-07-21 13:52:12,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:52:12,922 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 2698 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 1103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 4241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1103 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:12,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 5935 Invalid, 4241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1103 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 13:52:12,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55856 states. [2022-07-21 13:52:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55856 to 53176. [2022-07-21 13:52:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53176 states, 36188 states have (on average 1.233254117386979) internal successors, (44629), 37152 states have internal predecessors, (44629), 13372 states have call successors, (13372), 3626 states have call predecessors, (13372), 3613 states have return successors, (13531), 13109 states have call predecessors, (13531), 13369 states have call successors, (13531) [2022-07-21 13:52:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53176 states to 53176 states and 71532 transitions. [2022-07-21 13:52:15,127 INFO L78 Accepts]: Start accepts. Automaton has 53176 states and 71532 transitions. Word has length 178 [2022-07-21 13:52:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:15,127 INFO L495 AbstractCegarLoop]: Abstraction has 53176 states and 71532 transitions. [2022-07-21 13:52:15,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 13:52:15,128 INFO L276 IsEmpty]: Start isEmpty. Operand 53176 states and 71532 transitions. [2022-07-21 13:52:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 13:52:15,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:15,130 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:15,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 13:52:15,130 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:15,131 INFO L85 PathProgramCache]: Analyzing trace with hash -663046897, now seen corresponding path program 1 times [2022-07-21 13:52:15,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:15,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636788159] [2022-07-21 13:52:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:15,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:52:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:52:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:52:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:52:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:52:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:52:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:52:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:52:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:52:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:52:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:52:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-21 13:52:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:15,301 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-21 13:52:15,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:15,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636788159] [2022-07-21 13:52:15,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636788159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:15,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:15,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312300292] [2022-07-21 13:52:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:15,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:15,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:15,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:15,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:15,303 INFO L87 Difference]: Start difference. First operand 53176 states and 71532 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:52:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:22,695 INFO L93 Difference]: Finished difference Result 107811 states and 146869 transitions. [2022-07-21 13:52:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 13:52:22,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 183 [2022-07-21 13:52:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:23,207 INFO L225 Difference]: With dead ends: 107811 [2022-07-21 13:52:23,208 INFO L226 Difference]: Without dead ends: 107809 [2022-07-21 13:52:23,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 13:52:23,252 INFO L413 NwaCegarLoop]: 2891 mSDtfsCounter, 3251 mSDsluCounter, 5289 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 1526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 8180 SdHoareTripleChecker+Invalid, 7444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1526 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:23,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 8180 Invalid, 7444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1526 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-21 13:52:23,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107809 states. [2022-07-21 13:52:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107809 to 102487. [2022-07-21 13:52:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102487 states, 69973 states have (on average 1.234576193674703) internal successors, (86387), 71999 states have internal predecessors, (86387), 25516 states have call successors, (25516), 7153 states have call predecessors, (25516), 6995 states have return successors, (26502), 24620 states have call predecessors, (26502), 25510 states have call successors, (26502) [2022-07-21 13:52:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102487 states to 102487 states and 138405 transitions. [2022-07-21 13:52:27,683 INFO L78 Accepts]: Start accepts. Automaton has 102487 states and 138405 transitions. Word has length 183 [2022-07-21 13:52:27,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:27,684 INFO L495 AbstractCegarLoop]: Abstraction has 102487 states and 138405 transitions. [2022-07-21 13:52:27,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:52:27,684 INFO L276 IsEmpty]: Start isEmpty. Operand 102487 states and 138405 transitions. [2022-07-21 13:52:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-21 13:52:27,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:27,687 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:27,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 13:52:27,687 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:27,688 INFO L85 PathProgramCache]: Analyzing trace with hash 690285999, now seen corresponding path program 1 times [2022-07-21 13:52:27,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:52:27,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794216930] [2022-07-21 13:52:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:27,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:52:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:52:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:52:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:52:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:52:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:52:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:52:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:52:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 13:52:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 13:52:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:52:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 13:52:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:52:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:52:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 13:52:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 13:52:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 13:52:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:52:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 13:52:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 13:52:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:52:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:52:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-21 13:52:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 13:52:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-21 13:52:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:52:27,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794216930] [2022-07-21 13:52:27,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794216930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:27,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:27,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:52:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621728856] [2022-07-21 13:52:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:27,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:52:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:52:27,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:52:27,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:52:27,867 INFO L87 Difference]: Start difference. First operand 102487 states and 138405 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)