./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-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-hippi-rrunner.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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:38:15,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:38:15,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:38:16,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:38:16,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:38:16,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:38:16,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:38:16,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:38:16,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:38:16,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:38:16,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:38:16,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:38:16,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:38:16,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:38:16,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:38:16,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:38:16,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:38:16,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:38:16,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:38:16,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:38:16,066 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:38:16,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:38:16,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:38:16,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:38:16,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:38:16,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:38:16,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:38:16,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:38:16,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:38:16,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:38:16,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:38:16,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:38:16,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:38:16,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:38:16,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:38:16,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:38:16,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:38:16,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:38:16,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:38:16,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:38:16,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:38:16,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:38:16,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 02:38:16,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:38:16,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:38:16,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:38:16,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:38:16,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:38:16,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:38:16,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:38:16,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:38:16,119 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:38:16,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:38:16,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 02:38:16,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:38:16,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:38:16,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:38:16,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:38:16,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:38:16,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:38:16,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:38:16,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:38:16,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:38:16,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:38:16,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:38:16,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:38:16,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:38:16,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:38:16,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 02:38:16,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 02:38:16,124 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:38:16,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:38:16,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:38:16,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-07-23 02:38:16,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:38:16,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:38:16,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:38:16,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:38:16,348 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:38:16,349 INFO L432 ainManager$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-hippi-rrunner.cil.i [2022-07-23 02:38:16,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd4e3cb16/8e5e045015644da58ec54b3d0cca9505/FLAG824606772 [2022-07-23 02:38:17,126 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:38:17,127 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-hippi-rrunner.cil.i [2022-07-23 02:38:17,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd4e3cb16/8e5e045015644da58ec54b3d0cca9505/FLAG824606772 [2022-07-23 02:38:17,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd4e3cb16/8e5e045015644da58ec54b3d0cca9505 [2022-07-23 02:38:17,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:38:17,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:38:17,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:38:17,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:38:17,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:38:17,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:38:17" (1/1) ... [2022-07-23 02:38:17,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b921c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:17, skipping insertion in model container [2022-07-23 02:38:17,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:38:17" (1/1) ... [2022-07-23 02:38:17,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:38:17,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:38:20,168 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-hippi-rrunner.cil.i[341176,341189] [2022-07-23 02:38:20,170 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-hippi-rrunner.cil.i[341345,341358] [2022-07-23 02:38:20,171 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-hippi-rrunner.cil.i[341512,341525] [2022-07-23 02:38:20,171 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-hippi-rrunner.cil.i[341680,341693] [2022-07-23 02:38:20,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:38:20,222 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:38:20,559 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-hippi-rrunner.cil.i[341176,341189] [2022-07-23 02:38:20,560 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-hippi-rrunner.cil.i[341345,341358] [2022-07-23 02:38:20,560 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-hippi-rrunner.cil.i[341512,341525] [2022-07-23 02:38:20,561 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-hippi-rrunner.cil.i[341680,341693] [2022-07-23 02:38:20,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:38:20,734 INFO L208 MainTranslator]: Completed translation [2022-07-23 02:38:20,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20 WrapperNode [2022-07-23 02:38:20,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 02:38:20,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 02:38:20,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 02:38:20,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 02:38:20,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:20,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,019 INFO L137 Inliner]: procedures = 427, calls = 1735, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4765 [2022-07-23 02:38:21,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 02:38:21,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 02:38:21,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 02:38:21,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 02:38:21,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 02:38:21,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 02:38:21,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 02:38:21,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 02:38:21,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (1/1) ... [2022-07-23 02:38:21,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:38:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 02:38:21,292 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) [2022-07-23 02:38:21,313 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 [2022-07-23 02:38:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-23 02:38:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-23 02:38:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 02:38:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 02:38:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 02:38:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 02:38:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-07-23 02:38:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-07-23 02:38:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 02:38:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 02:38:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 02:38:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 02:38:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-07-23 02:38:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-07-23 02:38:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-07-23 02:38:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-07-23 02:38:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:38:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:38:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 02:38:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 02:38:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-23 02:38:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 02:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 02:38:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 02:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 02:38:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 02:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 02:38:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 02:38:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-23 02:38:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-23 02:38:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 02:38:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 02:38:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-07-23 02:38:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-07-23 02:38:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 02:38:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 02:38:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-07-23 02:38:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-07-23 02:38:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 02:38:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 02:38:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 02:38:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 02:38:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 02:38:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-07-23 02:38:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-07-23 02:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 02:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 02:38:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 02:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 02:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 02:38:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 02:38:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 02:38:21,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 02:38:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 02:38:21,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 02:38:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 02:38:21,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 02:38:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 02:38:21,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 02:38:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 02:38:21,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 02:38:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:38:21,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:38:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 02:38:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-23 02:38:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-23 02:38:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 02:38:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 02:38:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 02:38:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 02:38:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 02:38:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 02:38:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 02:38:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 02:38:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-23 02:38:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-23 02:38:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-23 02:38:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-23 02:38:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-07-23 02:38:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-07-23 02:38:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-23 02:38:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-23 02:38:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 02:38:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 02:38:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 02:38:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 02:38:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-23 02:38:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-23 02:38:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 02:38:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 02:38:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-23 02:38:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-23 02:38:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 02:38:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 02:38:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-23 02:38:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-23 02:38:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 02:38:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 02:38:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 02:38:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 02:38:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:38:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:38:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 02:38:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 02:38:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-07-23 02:38:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-07-23 02:38:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 02:38:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 02:38:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 02:38:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 02:38:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 02:38:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 02:38:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-23 02:38:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-23 02:38:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-07-23 02:38:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-07-23 02:38:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 02:38:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 02:38:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 02:38:21,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 02:38:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 02:38:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-07-23 02:38:21,359 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-07-23 02:38:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 02:38:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 02:38:21,359 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 02:38:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 02:38:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 02:38:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 02:38:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-23 02:38:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-23 02:38:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 02:38:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 02:38:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 02:38:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 02:38:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 02:38:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 02:38:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 02:38:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 02:38:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 02:38:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 02:38:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 02:38:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 02:38:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 02:38:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-07-23 02:38:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-07-23 02:38:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-07-23 02:38:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-07-23 02:38:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 02:38:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 02:38:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-23 02:38:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-23 02:38:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-23 02:38:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-23 02:38:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 02:38:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 02:38:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 02:38:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-07-23 02:38:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-07-23 02:38:22,117 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 02:38:22,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 02:38:24,917 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 02:38:26,770 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 02:38:26,837 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 02:38:26,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 02:38:26,852 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 02:38:26,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:38:26 BoogieIcfgContainer [2022-07-23 02:38:26,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 02:38:26,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 02:38:26,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 02:38:26,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 02:38:26,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 02:38:17" (1/3) ... [2022-07-23 02:38:26,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab2713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:38:26, skipping insertion in model container [2022-07-23 02:38:26,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:20" (2/3) ... [2022-07-23 02:38:26,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab2713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:38:26, skipping insertion in model container [2022-07-23 02:38:26,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:38:26" (3/3) ... [2022-07-23 02:38:26,896 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-07-23 02:38:26,910 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 02:38:26,910 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 02:38:26,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 02:38:27,001 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@7f58ce8c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@65841dbb [2022-07-23 02:38:27,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 02:38:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 1628 states, 1086 states have (on average 1.296500920810313) internal successors, (1408), 1111 states have internal predecessors, (1408), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2022-07-23 02:38:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-23 02:38:27,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:27,025 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] [2022-07-23 02:38:27,026 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)] === [2022-07-23 02:38:27,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:27,030 INFO L85 PathProgramCache]: Analyzing trace with hash 225297271, now seen corresponding path program 1 times [2022-07-23 02:38:27,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:27,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977958708] [2022-07-23 02:38:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:27,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 02:38:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-23 02:38:27,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:27,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977958708] [2022-07-23 02:38:27,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977958708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:27,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:27,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:38:27,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372782238] [2022-07-23 02:38:27,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:27,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:38:27,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:27,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:38:27,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:38:27,805 INFO L87 Difference]: Start difference. First operand has 1628 states, 1086 states have (on average 1.296500920810313) internal successors, (1408), 1111 states have internal predecessors, (1408), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-23 02:38:31,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:31,808 INFO L93 Difference]: Finished difference Result 4781 states and 7040 transitions. [2022-07-23 02:38:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:38:31,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 105 [2022-07-23 02:38:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:31,857 INFO L225 Difference]: With dead ends: 4781 [2022-07-23 02:38:31,858 INFO L226 Difference]: Without dead ends: 3162 [2022-07-23 02:38:31,876 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 [2022-07-23 02:38:31,880 INFO L413 NwaCegarLoop]: 2525 mSDtfsCounter, 2499 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 1180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1180 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:31,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 4839 Invalid, 3008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1180 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-23 02:38:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-07-23 02:38:32,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3124. [2022-07-23 02:38:32,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2101 states have (on average 1.256544502617801) internal successors, (2640), 2150 states have internal predecessors, (2640), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2022-07-23 02:38:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4404 transitions. [2022-07-23 02:38:32,177 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4404 transitions. Word has length 105 [2022-07-23 02:38:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:32,178 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 4404 transitions. [2022-07-23 02:38:32,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-23 02:38:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4404 transitions. [2022-07-23 02:38:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-23 02:38:32,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:32,183 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] [2022-07-23 02:38:32,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 02:38:32,183 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)] === [2022-07-23 02:38:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:32,184 INFO L85 PathProgramCache]: Analyzing trace with hash 740995989, now seen corresponding path program 1 times [2022-07-23 02:38:32,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:32,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550532481] [2022-07-23 02:38:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:32,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:38:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 02:38:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 02:38:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-23 02:38:32,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550532481] [2022-07-23 02:38:32,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550532481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:32,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:32,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:38:32,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989201968] [2022-07-23 02:38:32,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:32,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:38:32,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:32,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:38:32,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:38:32,409 INFO L87 Difference]: Start difference. First operand 3124 states and 4404 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 02:38:36,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:36,020 INFO L93 Difference]: Finished difference Result 8812 states and 12453 transitions. [2022-07-23 02:38:36,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:38:36,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-07-23 02:38:36,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:36,100 INFO L225 Difference]: With dead ends: 8812 [2022-07-23 02:38:36,101 INFO L226 Difference]: Without dead ends: 5707 [2022-07-23 02:38:36,113 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 [2022-07-23 02:38:36,115 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 2186 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 1188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 4820 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:36,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 4820 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-23 02:38:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2022-07-23 02:38:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5619. [2022-07-23 02:38:36,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5619 states, 3738 states have (on average 1.2495987158908508) internal successors, (4671), 3816 states have internal predecessors, (4671), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 265 states have return successors, (1625), 1568 states have call predecessors, (1625), 1609 states have call successors, (1625) [2022-07-23 02:38:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5619 states to 5619 states and 7909 transitions. [2022-07-23 02:38:36,363 INFO L78 Accepts]: Start accepts. Automaton has 5619 states and 7909 transitions. Word has length 113 [2022-07-23 02:38:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:36,364 INFO L495 AbstractCegarLoop]: Abstraction has 5619 states and 7909 transitions. [2022-07-23 02:38:36,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 02:38:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5619 states and 7909 transitions. [2022-07-23 02:38:36,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-23 02:38:36,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:36,368 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, 1] [2022-07-23 02:38:36,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 02:38:36,369 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)] === [2022-07-23 02:38:36,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash 828808877, now seen corresponding path program 1 times [2022-07-23 02:38:36,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:36,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142487624] [2022-07-23 02:38:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:36,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-23 02:38:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-23 02:38:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:36,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142487624] [2022-07-23 02:38:36,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142487624] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:36,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:36,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:38:36,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791660172] [2022-07-23 02:38:36,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:36,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:38:36,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:36,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:38:36,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:38:36,667 INFO L87 Difference]: Start difference. First operand 5619 states and 7909 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2022-07-23 02:38:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:39,876 INFO L93 Difference]: Finished difference Result 11223 states and 15834 transitions. [2022-07-23 02:38:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:38:39,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 116 [2022-07-23 02:38:39,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:39,957 INFO L225 Difference]: With dead ends: 11223 [2022-07-23 02:38:39,958 INFO L226 Difference]: Without dead ends: 5623 [2022-07-23 02:38:39,981 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 [2022-07-23 02:38:39,985 INFO L413 NwaCegarLoop]: 2518 mSDtfsCounter, 1761 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 4819 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:39,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 4819 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-23 02:38:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-07-23 02:38:40,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 5523. [2022-07-23 02:38:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 3623 states have (on average 1.242340601711289) internal successors, (4501), 3700 states have internal predecessors, (4501), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 286 states have return successors, (1615), 1565 states have call predecessors, (1615), 1607 states have call successors, (1615) [2022-07-23 02:38:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 7727 transitions. [2022-07-23 02:38:40,281 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 7727 transitions. Word has length 116 [2022-07-23 02:38:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:40,282 INFO L495 AbstractCegarLoop]: Abstraction has 5523 states and 7727 transitions. [2022-07-23 02:38:40,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2022-07-23 02:38:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 7727 transitions. [2022-07-23 02:38:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-23 02:38:40,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:40,286 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:40,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 02:38:40,286 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)] === [2022-07-23 02:38:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash -944967309, now seen corresponding path program 1 times [2022-07-23 02:38:40,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:40,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079494945] [2022-07-23 02:38:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:40,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 02:38:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 02:38:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 02:38:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-23 02:38:40,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:40,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079494945] [2022-07-23 02:38:40,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079494945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:40,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:40,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:38:40,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135386668] [2022-07-23 02:38:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:40,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:38:40,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:40,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:38:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:38:40,538 INFO L87 Difference]: Start difference. First operand 5523 states and 7727 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 02:38:43,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:43,945 INFO L93 Difference]: Finished difference Result 14677 states and 20562 transitions. [2022-07-23 02:38:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:38:43,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2022-07-23 02:38:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:44,004 INFO L225 Difference]: With dead ends: 14677 [2022-07-23 02:38:44,004 INFO L226 Difference]: Without dead ends: 9173 [2022-07-23 02:38:44,030 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 [2022-07-23 02:38:44,031 INFO L413 NwaCegarLoop]: 2461 mSDtfsCounter, 2255 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 1177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1177 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:44,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 4772 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1177 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-23 02:38:44,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9173 states. [2022-07-23 02:38:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9173 to 9036. [2022-07-23 02:38:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 5924 states have (on average 1.237846049966239) internal successors, (7333), 6063 states have internal predecessors, (7333), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 479 states have return successors, (2642), 2533 states have call predecessors, (2642), 2626 states have call successors, (2642) [2022-07-23 02:38:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 12605 transitions. [2022-07-23 02:38:44,496 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 12605 transitions. Word has length 133 [2022-07-23 02:38:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:44,496 INFO L495 AbstractCegarLoop]: Abstraction has 9036 states and 12605 transitions. [2022-07-23 02:38:44,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 02:38:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 12605 transitions. [2022-07-23 02:38:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-23 02:38:44,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:44,499 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-07-23 02:38:44,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 02:38:44,499 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)] === [2022-07-23 02:38:44,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash 368574642, now seen corresponding path program 1 times [2022-07-23 02:38:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:44,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950394393] [2022-07-23 02:38:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:44,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 02:38:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-23 02:38:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-23 02:38:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-23 02:38:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 02:38:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-23 02:38:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 02:38:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-23 02:38:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-07-23 02:38:44,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:44,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950394393] [2022-07-23 02:38:44,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950394393] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:44,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:44,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 02:38:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834989900] [2022-07-23 02:38:44,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:38:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:38:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:38:44,824 INFO L87 Difference]: Start difference. First operand 9036 states and 12605 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-23 02:38:50,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:50,099 INFO L93 Difference]: Finished difference Result 26149 states and 36673 transitions. [2022-07-23 02:38:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 02:38:50,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2022-07-23 02:38:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:50,180 INFO L225 Difference]: With dead ends: 26149 [2022-07-23 02:38:50,180 INFO L226 Difference]: Without dead ends: 17132 [2022-07-23 02:38:50,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 02:38:50,216 INFO L413 NwaCegarLoop]: 3012 mSDtfsCounter, 2981 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 3064 mSolverCounterSat, 2202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 6524 SdHoareTripleChecker+Invalid, 5266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 3064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:50,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3331 Valid, 6524 Invalid, 5266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2202 Valid, 3064 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-23 02:38:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17132 states. [2022-07-23 02:38:50,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17132 to 16035. [2022-07-23 02:38:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16035 states, 10734 states have (on average 1.242873113471213) internal successors, (13341), 11016 states have internal predecessors, (13341), 4444 states have call successors, (4444), 873 states have call predecessors, (4444), 854 states have return successors, (4488), 4238 states have call predecessors, (4488), 4440 states have call successors, (4488) [2022-07-23 02:38:50,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16035 states to 16035 states and 22273 transitions. [2022-07-23 02:38:50,977 INFO L78 Accepts]: Start accepts. Automaton has 16035 states and 22273 transitions. Word has length 144 [2022-07-23 02:38:50,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:50,977 INFO L495 AbstractCegarLoop]: Abstraction has 16035 states and 22273 transitions. [2022-07-23 02:38:50,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-23 02:38:50,978 INFO L276 IsEmpty]: Start isEmpty. Operand 16035 states and 22273 transitions. [2022-07-23 02:38:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-23 02:38:50,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:50,981 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:50,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 02:38:50,981 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)] === [2022-07-23 02:38:50,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash -784046347, now seen corresponding path program 1 times [2022-07-23 02:38:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:50,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029690951] [2022-07-23 02:38:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:38:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:38:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:38:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:38:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:38:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:38:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:38:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-23 02:38:51,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:51,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029690951] [2022-07-23 02:38:51,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029690951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:51,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:51,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:38:51,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882365769] [2022-07-23 02:38:51,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:51,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:38:51,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:38:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:38:51,202 INFO L87 Difference]: Start difference. First operand 16035 states and 22273 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-07-23 02:38:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:54,786 INFO L93 Difference]: Finished difference Result 46329 states and 64609 transitions. [2022-07-23 02:38:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:38:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 161 [2022-07-23 02:38:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:55,008 INFO L225 Difference]: With dead ends: 46329 [2022-07-23 02:38:55,008 INFO L226 Difference]: Without dead ends: 30865 [2022-07-23 02:38:55,066 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 [2022-07-23 02:38:55,068 INFO L413 NwaCegarLoop]: 3097 mSDtfsCounter, 2331 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 5695 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:55,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 5695 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [989 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-23 02:38:55,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30865 states. [2022-07-23 02:38:56,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30865 to 30503. [2022-07-23 02:38:56,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30503 states, 20468 states have (on average 1.2439417627516123) internal successors, (25461), 20972 states have internal predecessors, (25461), 8415 states have call successors, (8415), 1646 states have call predecessors, (8415), 1617 states have return successors, (8507), 8069 states have call predecessors, (8507), 8411 states have call successors, (8507) [2022-07-23 02:38:56,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30503 states to 30503 states and 42383 transitions. [2022-07-23 02:38:56,643 INFO L78 Accepts]: Start accepts. Automaton has 30503 states and 42383 transitions. Word has length 161 [2022-07-23 02:38:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:56,644 INFO L495 AbstractCegarLoop]: Abstraction has 30503 states and 42383 transitions. [2022-07-23 02:38:56,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-07-23 02:38:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 30503 states and 42383 transitions. [2022-07-23 02:38:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-23 02:38:56,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:56,649 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:56,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 02:38:56,649 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)] === [2022-07-23 02:38:56,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:56,650 INFO L85 PathProgramCache]: Analyzing trace with hash -643497737, now seen corresponding path program 1 times [2022-07-23 02:38:56,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:38:56,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061624964] [2022-07-23 02:38:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:56,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:38:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:38:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:38:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:38:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:38:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:38:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:38:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:38:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:38:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:38:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:38:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:38:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:38:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:38:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:38:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:57,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:38:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:38:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-23 02:38:57,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:38:57,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061624964] [2022-07-23 02:38:57,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061624964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:38:57,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:38:57,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 02:38:57,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994120524] [2022-07-23 02:38:57,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:57,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:38:57,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:38:57,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:38:57,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:38:57,158 INFO L87 Difference]: Start difference. First operand 30503 states and 42383 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-23 02:39:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:00,594 INFO L93 Difference]: Finished difference Result 30867 states and 43023 transitions. [2022-07-23 02:39:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 02:39:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 161 [2022-07-23 02:39:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:00,729 INFO L225 Difference]: With dead ends: 30867 [2022-07-23 02:39:00,729 INFO L226 Difference]: Without dead ends: 30865 [2022-07-23 02:39:00,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:39:00,758 INFO L413 NwaCegarLoop]: 2160 mSDtfsCounter, 2143 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 5848 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:00,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 5848 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-23 02:39:00,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30865 states. [2022-07-23 02:39:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30865 to 30507. [2022-07-23 02:39:02,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30507 states, 20471 states have (on average 1.2439060133847883) internal successors, (25464), 20975 states have internal predecessors, (25464), 8415 states have call successors, (8415), 1647 states have call predecessors, (8415), 1618 states have return successors, (8507), 8069 states have call predecessors, (8507), 8411 states have call successors, (8507) [2022-07-23 02:39:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30507 states to 30507 states and 42386 transitions. [2022-07-23 02:39:02,301 INFO L78 Accepts]: Start accepts. Automaton has 30507 states and 42386 transitions. Word has length 161 [2022-07-23 02:39:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:02,302 INFO L495 AbstractCegarLoop]: Abstraction has 30507 states and 42386 transitions. [2022-07-23 02:39:02,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-23 02:39:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 30507 states and 42386 transitions. [2022-07-23 02:39:02,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-23 02:39:02,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:02,306 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:02,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 02:39:02,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-07-23 02:39:02,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1651957304, now seen corresponding path program 1 times [2022-07-23 02:39:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:02,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461936204] [2022-07-23 02:39:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:02,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-23 02:39:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 02:39:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-23 02:39:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 02:39:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-23 02:39:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 02:39:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 02:39:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 02:39:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 02:39:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-23 02:39:02,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:02,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461936204] [2022-07-23 02:39:02,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461936204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:02,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:02,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 02:39:02,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756693794] [2022-07-23 02:39:02,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:02,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:02,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:02,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:39:02,526 INFO L87 Difference]: Start difference. First operand 30507 states and 42386 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-23 02:39:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:09,248 INFO L93 Difference]: Finished difference Result 94235 states and 132090 transitions. [2022-07-23 02:39:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 02:39:09,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-07-23 02:39:09,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:09,596 INFO L225 Difference]: With dead ends: 94235 [2022-07-23 02:39:09,597 INFO L226 Difference]: Without dead ends: 63747 [2022-07-23 02:39:09,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 02:39:09,737 INFO L413 NwaCegarLoop]: 3066 mSDtfsCounter, 3206 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 3205 mSolverCounterSat, 2198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 6760 SdHoareTripleChecker+Invalid, 5403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2198 IncrementalHoareTripleChecker+Valid, 3205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:09,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3594 Valid, 6760 Invalid, 5403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2198 Valid, 3205 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-23 02:39:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63747 states. [2022-07-23 02:39:12,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63747 to 59707. [2022-07-23 02:39:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59707 states, 40084 states have (on average 1.2438379403253168) internal successors, (49858), 41102 states have internal predecessors, (49858), 16454 states have call successors, (16454), 3223 states have call predecessors, (16454), 3166 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-07-23 02:39:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59707 states to 59707 states and 82954 transitions. [2022-07-23 02:39:12,478 INFO L78 Accepts]: Start accepts. Automaton has 59707 states and 82954 transitions. Word has length 167 [2022-07-23 02:39:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:12,479 INFO L495 AbstractCegarLoop]: Abstraction has 59707 states and 82954 transitions. [2022-07-23 02:39:12,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-23 02:39:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 59707 states and 82954 transitions. [2022-07-23 02:39:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-23 02:39:12,482 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:12,482 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:12,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 02:39:12,482 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)] === [2022-07-23 02:39:12,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:12,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1137603187, now seen corresponding path program 1 times [2022-07-23 02:39:12,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:12,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246519821] [2022-07-23 02:39:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:12,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:39:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:39:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:39:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:39:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:39:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:39:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 02:39:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-23 02:39:12,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:12,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246519821] [2022-07-23 02:39:12,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246519821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:12,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:12,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 02:39:12,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726902256] [2022-07-23 02:39:12,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:12,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:39:12,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:12,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:39:12,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:39:12,786 INFO L87 Difference]: Start difference. First operand 59707 states and 82954 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:16,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:16,597 INFO L93 Difference]: Finished difference Result 60409 states and 84194 transitions. [2022-07-23 02:39:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 02:39:16,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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 166 [2022-07-23 02:39:16,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:16,981 INFO L225 Difference]: With dead ends: 60409 [2022-07-23 02:39:16,981 INFO L226 Difference]: Without dead ends: 60407 [2022-07-23 02:39:17,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:39:17,012 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 2135 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 3090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 788 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:17,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 5851 Invalid, 3090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [788 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-23 02:39:17,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60407 states. [2022-07-23 02:39:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60407 to 59711. [2022-07-23 02:39:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59711 states, 40087 states have (on average 1.2438196921695313) internal successors, (49861), 41105 states have internal predecessors, (49861), 16454 states have call successors, (16454), 3224 states have call predecessors, (16454), 3167 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-07-23 02:39:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59711 states to 59711 states and 82957 transitions. [2022-07-23 02:39:19,580 INFO L78 Accepts]: Start accepts. Automaton has 59711 states and 82957 transitions. Word has length 166 [2022-07-23 02:39:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:19,580 INFO L495 AbstractCegarLoop]: Abstraction has 59711 states and 82957 transitions. [2022-07-23 02:39:19,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 59711 states and 82957 transitions. [2022-07-23 02:39:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-23 02:39:19,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:19,584 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, 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] [2022-07-23 02:39:19,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 02:39:19,584 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)] === [2022-07-23 02:39:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2008057463, now seen corresponding path program 1 times [2022-07-23 02:39:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:19,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989928239] [2022-07-23 02:39:19,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:19,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:39:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:39:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:39:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:39:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:39:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:39:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 02:39:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 02:39:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-07-23 02:39:19,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:19,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989928239] [2022-07-23 02:39:19,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989928239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:19,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:19,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 02:39:19,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200871883] [2022-07-23 02:39:19,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:19,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:39:19,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:19,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:39:19,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:39:19,866 INFO L87 Difference]: Start difference. First operand 59711 states and 82957 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:23,658 INFO L93 Difference]: Finished difference Result 60413 states and 84197 transitions. [2022-07-23 02:39:23,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 02:39:23,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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 171 [2022-07-23 02:39:23,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:24,129 INFO L225 Difference]: With dead ends: 60413 [2022-07-23 02:39:24,129 INFO L226 Difference]: Without dead ends: 60411 [2022-07-23 02:39:24,156 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 [2022-07-23 02:39:24,156 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 2135 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:24,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 5851 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-23 02:39:24,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60411 states. [2022-07-23 02:39:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60411 to 59715. [2022-07-23 02:39:26,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59715 states, 40090 states have (on average 1.2438014467448242) internal successors, (49864), 41108 states have internal predecessors, (49864), 16454 states have call successors, (16454), 3225 states have call predecessors, (16454), 3168 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-07-23 02:39:26,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59715 states to 59715 states and 82960 transitions. [2022-07-23 02:39:26,577 INFO L78 Accepts]: Start accepts. Automaton has 59715 states and 82960 transitions. Word has length 171 [2022-07-23 02:39:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:26,578 INFO L495 AbstractCegarLoop]: Abstraction has 59715 states and 82960 transitions. [2022-07-23 02:39:26,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 59715 states and 82960 transitions. [2022-07-23 02:39:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-23 02:39:26,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:26,582 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, 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] [2022-07-23 02:39:26,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 02:39:26,583 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)] === [2022-07-23 02:39:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash -63461491, now seen corresponding path program 1 times [2022-07-23 02:39:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:26,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330252418] [2022-07-23 02:39:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:39:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:39:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:39:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:39:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:39:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:39:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 02:39:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 02:39:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 02:39:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-07-23 02:39:26,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:26,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330252418] [2022-07-23 02:39:26,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330252418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:26,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:26,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 02:39:26,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590940416] [2022-07-23 02:39:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:26,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:39:26,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:26,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:39:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:39:26,879 INFO L87 Difference]: Start difference. First operand 59715 states and 82960 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:30,525 INFO L93 Difference]: Finished difference Result 60417 states and 84200 transitions. [2022-07-23 02:39:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 02:39:30,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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 176 [2022-07-23 02:39:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:30,728 INFO L225 Difference]: With dead ends: 60417 [2022-07-23 02:39:30,728 INFO L226 Difference]: Without dead ends: 60415 [2022-07-23 02:39:30,861 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 [2022-07-23 02:39:30,862 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 2135 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:30,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 5851 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-23 02:39:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60415 states. [2022-07-23 02:39:33,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60415 to 59719. [2022-07-23 02:39:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59719 states, 40093 states have (on average 1.2437832040505823) internal successors, (49867), 41111 states have internal predecessors, (49867), 16454 states have call successors, (16454), 3226 states have call predecessors, (16454), 3169 states have return successors, (16642), 15749 states have call predecessors, (16642), 16450 states have call successors, (16642) [2022-07-23 02:39:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59719 states to 59719 states and 82963 transitions. [2022-07-23 02:39:33,319 INFO L78 Accepts]: Start accepts. Automaton has 59719 states and 82963 transitions. Word has length 176 [2022-07-23 02:39:33,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:33,320 INFO L495 AbstractCegarLoop]: Abstraction has 59719 states and 82963 transitions. [2022-07-23 02:39:33,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 59719 states and 82963 transitions. [2022-07-23 02:39:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-23 02:39:33,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:33,329 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:33,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 02:39:33,329 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)] === [2022-07-23 02:39:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1397939291, now seen corresponding path program 1 times [2022-07-23 02:39:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:33,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660919273] [2022-07-23 02:39:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:39:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:39:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:39:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:39:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:39:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 02:39:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:39:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 02:39:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-23 02:39:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 02:39:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 02:39:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 02:39:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-07-23 02:39:33,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:33,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660919273] [2022-07-23 02:39:33,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660919273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:33,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:33,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 02:39:33,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436487158] [2022-07-23 02:39:33,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:33,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:33,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:33,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:33,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:39:33,609 INFO L87 Difference]: Start difference. First operand 59719 states and 82963 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 02:39:40,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:39:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:44,479 INFO L93 Difference]: Finished difference Result 149360 states and 208059 transitions. [2022-07-23 02:39:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 02:39:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 192 [2022-07-23 02:39:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:44,894 INFO L225 Difference]: With dead ends: 149360 [2022-07-23 02:39:44,894 INFO L226 Difference]: Without dead ends: 89716 [2022-07-23 02:39:45,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 02:39:45,085 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 2510 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 3550 mSolverCounterSat, 2052 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 7560 SdHoareTripleChecker+Invalid, 5603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2052 IncrementalHoareTripleChecker+Valid, 3550 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:45,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2848 Valid, 7560 Invalid, 5603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2052 Valid, 3550 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-07-23 02:39:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89716 states. [2022-07-23 02:39:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89716 to 88631. [2022-07-23 02:39:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88631 states, 59553 states have (on average 1.2434470135845381) internal successors, (74051), 61007 states have internal predecessors, (74051), 24380 states have call successors, (24380), 4772 states have call predecessors, (24380), 4695 states have return successors, (24664), 23403 states have call predecessors, (24664), 24376 states have call successors, (24664) [2022-07-23 02:39:49,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88631 states to 88631 states and 123095 transitions. [2022-07-23 02:39:49,349 INFO L78 Accepts]: Start accepts. Automaton has 88631 states and 123095 transitions. Word has length 192 [2022-07-23 02:39:49,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:49,350 INFO L495 AbstractCegarLoop]: Abstraction has 88631 states and 123095 transitions. [2022-07-23 02:39:49,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 02:39:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 88631 states and 123095 transitions. [2022-07-23 02:39:49,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-23 02:39:49,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:49,354 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, 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] [2022-07-23 02:39:49,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 02:39:49,355 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)] === [2022-07-23 02:39:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:49,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1448813577, now seen corresponding path program 1 times [2022-07-23 02:39:49,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:49,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627647665] [2022-07-23 02:39:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:39:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:39:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 02:39:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 02:39:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 02:39:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 02:39:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 02:39:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 02:39:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 02:39:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-23 02:39:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-07-23 02:39:49,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:49,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627647665] [2022-07-23 02:39:49,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627647665] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:49,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:49,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 02:39:49,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130020233] [2022-07-23 02:39:49,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:49,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:39:49,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:49,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:39:49,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:39:49,611 INFO L87 Difference]: Start difference. First operand 88631 states and 123095 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:54,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:54,983 INFO L93 Difference]: Finished difference Result 89681 states and 124949 transitions. [2022-07-23 02:39:54,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 02:39:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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 181 [2022-07-23 02:39:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:55,351 INFO L225 Difference]: With dead ends: 89681 [2022-07-23 02:39:55,352 INFO L226 Difference]: Without dead ends: 89679 [2022-07-23 02:39:55,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:39:55,392 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 2135 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:55,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 5851 Invalid, 3087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-23 02:39:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89679 states. [2022-07-23 02:39:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89679 to 88635. [2022-07-23 02:39:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88635 states, 59556 states have (on average 1.2434347504869367) internal successors, (74054), 61010 states have internal predecessors, (74054), 24380 states have call successors, (24380), 4773 states have call predecessors, (24380), 4696 states have return successors, (24664), 23403 states have call predecessors, (24664), 24376 states have call successors, (24664) [2022-07-23 02:39:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88635 states to 88635 states and 123098 transitions. [2022-07-23 02:39:59,705 INFO L78 Accepts]: Start accepts. Automaton has 88635 states and 123098 transitions. Word has length 181 [2022-07-23 02:39:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:59,706 INFO L495 AbstractCegarLoop]: Abstraction has 88635 states and 123098 transitions. [2022-07-23 02:39:59,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-07-23 02:39:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 88635 states and 123098 transitions. [2022-07-23 02:39:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-23 02:39:59,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:59,710 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:59,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 02:39:59,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-07-23 02:39:59,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:59,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2018843187, now seen corresponding path program 1 times [2022-07-23 02:39:59,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:39:59,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865698460] [2022-07-23 02:39:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:59,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:39:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:39:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:39:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:39:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:39:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:39:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:39:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:39:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 02:39:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 02:39:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 02:39:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:39:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 02:39:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 02:39:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:39:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 02:39:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 02:39:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-23 02:39:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-23 02:39:59,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:39:59,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865698460] [2022-07-23 02:39:59,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865698460] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:59,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:59,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:39:59,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285001209] [2022-07-23 02:39:59,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:59,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:39:59,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:39:59,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:39:59,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:39:59,936 INFO L87 Difference]: Start difference. First operand 88635 states and 123098 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)