./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.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 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:20:16,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:20:16,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:20:16,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:20:16,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:20:16,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:20:16,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:20:16,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:20:16,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:20:16,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:20:16,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:20:16,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:20:16,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:20:16,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:20:16,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:20:16,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:20:16,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:20:16,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:20:16,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:20:16,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:20:16,472 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:20:16,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:20:16,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:20:16,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:20:16,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:20:16,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:20:16,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:20:16,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:20:16,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:20:16,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:20:16,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:20:16,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:20:16,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:20:16,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:20:16,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:20:16,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:20:16,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:20:16,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:20:16,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:20:16,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:20:16,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:20:16,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:20:16,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:20:16,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:20:16,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:20:16,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:20:16,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:20:16,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:20:16,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:20:16,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:20:16,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:20:16,528 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:20:16,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:20:16,529 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:20:16,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:20:16,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:20:16,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:20:16,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:20:16,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:20:16,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:20:16,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:20:16,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:20:16,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:20:16,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:20:16,532 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:20:16,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:20:16,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:20:16,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2754d1ad46049a17f9b43992f91364cab029d3fcf93c78791853a365602d9e1a [2022-07-12 15:20:16,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:20:16,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:20:16,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:20:16,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:20:16,755 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:20:16,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-07-12 15:20:16,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576e0ecc9/807d658cd67540c383941f90f19852c4/FLAG957165520 [2022-07-12 15:20:17,544 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:20:17,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-07-12 15:20:17,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576e0ecc9/807d658cd67540c383941f90f19852c4/FLAG957165520 [2022-07-12 15:20:17,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576e0ecc9/807d658cd67540c383941f90f19852c4 [2022-07-12 15:20:17,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:20:17,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:20:17,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:20:17,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:20:17,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:20:17,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:20:17" (1/1) ... [2022-07-12 15:20:17,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678235d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:17, skipping insertion in model container [2022-07-12 15:20:17,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:20:17" (1/1) ... [2022-07-12 15:20:17,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:20:17,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:20:20,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2022-07-12 15:20:20,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2022-07-12 15:20:20,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2022-07-12 15:20:20,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2022-07-12 15:20:20,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:20:20,683 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:20:20,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347312,347325] [2022-07-12 15:20:20,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347481,347494] [2022-07-12 15:20:20,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347648,347661] [2022-07-12 15:20:20,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[347816,347829] [2022-07-12 15:20:20,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:20:21,150 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:20:21,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21 WrapperNode [2022-07-12 15:20:21,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:20:21,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:20:21,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:20:21,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:20:21,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,496 INFO L137 Inliner]: procedures = 447, calls = 2093, calls flagged for inlining = 218, calls inlined = 201, statements flattened = 5193 [2022-07-12 15:20:21,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:20:21,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:20:21,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:20:21,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:20:21,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:20:21,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:20:21,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:20:21,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:20:21,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (1/1) ... [2022-07-12 15:20:21,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:20:21,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:20:21,857 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) [2022-07-12 15:20:21,872 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 [2022-07-12 15:20:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-12 15:20:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2022-07-12 15:20:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2022-07-12 15:20:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-12 15:20:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-12 15:20:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:20:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:20:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:20:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:20:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2022-07-12 15:20:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2022-07-12 15:20:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2022-07-12 15:20:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2022-07-12 15:20:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2022-07-12 15:20:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2022-07-12 15:20:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:20:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:20:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2022-07-12 15:20:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2022-07-12 15:20:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:20:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:20:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 15:20:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 15:20:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:20:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:20:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2022-07-12 15:20:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2022-07-12 15:20:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:20:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:20:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2022-07-12 15:20:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2022-07-12 15:20:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-07-12 15:20:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-07-12 15:20:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2022-07-12 15:20:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2022-07-12 15:20:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2022-07-12 15:20:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2022-07-12 15:20:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2022-07-12 15:20:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2022-07-12 15:20:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:20:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:20:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:20:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:20:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 15:20:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 15:20:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-07-12 15:20:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-07-12 15:20:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:20:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:20:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:20:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:20:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:20:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 15:20:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 15:20:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2022-07-12 15:20:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2022-07-12 15:20:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:20:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:20:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 15:20:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:20:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:20:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 15:20:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:20:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:20:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 15:20:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:20:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:20:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:20:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:20:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:20:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:20:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:20:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:20:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2022-07-12 15:20:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2022-07-12 15:20:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2022-07-12 15:20:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2022-07-12 15:20:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:20:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:20:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:20:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:20:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:20:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:20:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:20:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2022-07-12 15:20:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2022-07-12 15:20:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-12 15:20:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-12 15:20:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:20:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2022-07-12 15:20:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2022-07-12 15:20:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:20:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:20:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:20:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:20:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:20:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:20:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:20:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:20:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:20:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:20:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:20:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-12 15:20:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-12 15:20:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:20:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:20:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:20:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:20:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:20:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:20:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 15:20:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 15:20:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2022-07-12 15:20:21,926 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2022-07-12 15:20:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:20:21,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:20:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2022-07-12 15:20:21,927 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2022-07-12 15:20:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 15:20:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 15:20:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:20:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2022-07-12 15:20:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2022-07-12 15:20:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:20:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:20:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:20:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 15:20:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 15:20:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:20:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:20:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-12 15:20:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-12 15:20:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:20:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:20:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2022-07-12 15:20:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2022-07-12 15:20:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:20:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:20:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-12 15:20:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-12 15:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-12 15:20:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-12 15:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-12 15:20:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-12 15:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 15:20:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 15:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:20:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2022-07-12 15:20:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2022-07-12 15:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:20:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:20:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:20:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 15:20:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 15:20:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2022-07-12 15:20:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2022-07-12 15:20:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-07-12 15:20:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-07-12 15:20:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2022-07-12 15:20:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2022-07-12 15:20:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:20:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:20:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:20:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:20:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2022-07-12 15:20:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2022-07-12 15:20:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 15:20:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:20:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:20:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 15:20:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 15:20:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-07-12 15:20:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-07-12 15:20:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:20:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:20:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-12 15:20:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-12 15:20:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-07-12 15:20:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-07-12 15:20:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 15:20:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 15:20:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 15:20:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-07-12 15:20:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-07-12 15:20:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:20:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:20:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-07-12 15:20:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-07-12 15:20:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2022-07-12 15:20:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2022-07-12 15:20:22,768 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:20:22,777 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:20:23,182 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:20:26,247 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:20:26,368 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:20:26,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:20:26,382 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 15:20:26,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:20:26 BoogieIcfgContainer [2022-07-12 15:20:26,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:20:26,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:20:26,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:20:26,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:20:26,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:20:17" (1/3) ... [2022-07-12 15:20:26,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7836a60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:20:26, skipping insertion in model container [2022-07-12 15:20:26,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:20:21" (2/3) ... [2022-07-12 15:20:26,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7836a60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:20:26, skipping insertion in model container [2022-07-12 15:20:26,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:20:26" (3/3) ... [2022-07-12 15:20:26,391 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2022-07-12 15:20:26,401 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:20:26,402 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:20:26,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:20:26,467 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@4efa8eec, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b0c0d36 [2022-07-12 15:20:26,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:20:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 2113 states, 1459 states have (on average 1.3502398903358466) internal successors, (1970), 1499 states have internal predecessors, (1970), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) [2022-07-12 15:20:26,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 15:20:26,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:26,490 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] [2022-07-12 15:20:26,490 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)] === [2022-07-12 15:20:26,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:26,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1437983870, now seen corresponding path program 1 times [2022-07-12 15:20:26,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:26,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407836043] [2022-07-12 15:20:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:26,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 15:20:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-12 15:20:27,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:27,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407836043] [2022-07-12 15:20:27,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407836043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:27,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:27,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:27,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8465811] [2022-07-12 15:20:27,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:27,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:27,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:27,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:27,117 INFO L87 Difference]: Start difference. First operand has 2113 states, 1459 states have (on average 1.3502398903358466) internal successors, (1970), 1499 states have internal predecessors, (1970), 562 states have call successors, (562), 90 states have call predecessors, (562), 89 states have return successors, (556), 542 states have call predecessors, (556), 556 states have call successors, (556) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:31,249 INFO L93 Difference]: Finished difference Result 6233 states and 9428 transitions. [2022-07-12 15:20:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:20:31,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-07-12 15:20:31,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:31,286 INFO L225 Difference]: With dead ends: 6233 [2022-07-12 15:20:31,286 INFO L226 Difference]: Without dead ends: 4131 [2022-07-12 15:20:31,304 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 [2022-07-12 15:20:31,307 INFO L413 NwaCegarLoop]: 3105 mSDtfsCounter, 3596 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 1704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 4233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1704 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:31,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 5840 Invalid, 4233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1704 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 15:20:31,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2022-07-12 15:20:31,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 4089. [2022-07-12 15:20:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4089 states, 2841 states have (on average 1.2981344596972897) internal successors, (3688), 2920 states have internal predecessors, (3688), 1071 states have call successors, (1071), 175 states have call predecessors, (1071), 174 states have return successors, (1067), 1039 states have call predecessors, (1067), 1067 states have call successors, (1067) [2022-07-12 15:20:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4089 states to 4089 states and 5826 transitions. [2022-07-12 15:20:31,506 INFO L78 Accepts]: Start accepts. Automaton has 4089 states and 5826 transitions. Word has length 116 [2022-07-12 15:20:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:31,507 INFO L495 AbstractCegarLoop]: Abstraction has 4089 states and 5826 transitions. [2022-07-12 15:20:31,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4089 states and 5826 transitions. [2022-07-12 15:20:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 15:20:31,511 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:31,511 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] [2022-07-12 15:20:31,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 15:20:31,511 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)] === [2022-07-12 15:20:31,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash -532561357, now seen corresponding path program 1 times [2022-07-12 15:20:31,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:31,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937116373] [2022-07-12 15:20:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 15:20:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-12 15:20:31,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:31,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937116373] [2022-07-12 15:20:31,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937116373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:31,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:31,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:31,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891964033] [2022-07-12 15:20:31,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:31,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:31,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:31,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:31,819 INFO L87 Difference]: Start difference. First operand 4089 states and 5826 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:35,347 INFO L93 Difference]: Finished difference Result 11413 states and 16232 transitions. [2022-07-12 15:20:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:20:35,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2022-07-12 15:20:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:35,404 INFO L225 Difference]: With dead ends: 11413 [2022-07-12 15:20:35,405 INFO L226 Difference]: Without dead ends: 7345 [2022-07-12 15:20:35,444 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 [2022-07-12 15:20:35,446 INFO L413 NwaCegarLoop]: 3309 mSDtfsCounter, 3240 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 1524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1524 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:35,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3701 Valid, 5947 Invalid, 3667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1524 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 15:20:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2022-07-12 15:20:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 7253. [2022-07-12 15:20:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 5091 states have (on average 1.2971911215871146) internal successors, (6604), 5239 states have internal predecessors, (6604), 1828 states have call successors, (1828), 340 states have call predecessors, (1828), 331 states have return successors, (1838), 1749 states have call predecessors, (1838), 1824 states have call successors, (1838) [2022-07-12 15:20:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 10270 transitions. [2022-07-12 15:20:35,866 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 10270 transitions. Word has length 117 [2022-07-12 15:20:35,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:35,867 INFO L495 AbstractCegarLoop]: Abstraction has 7253 states and 10270 transitions. [2022-07-12 15:20:35,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:35,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 10270 transitions. [2022-07-12 15:20:35,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-12 15:20:35,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:35,870 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] [2022-07-12 15:20:35,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 15:20:35,870 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)] === [2022-07-12 15:20:35,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:35,871 INFO L85 PathProgramCache]: Analyzing trace with hash 361616723, now seen corresponding path program 1 times [2022-07-12 15:20:35,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:35,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067741171] [2022-07-12 15:20:35,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:35,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 15:20:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-12 15:20:36,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:36,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067741171] [2022-07-12 15:20:36,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067741171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:36,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:36,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:36,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613030030] [2022-07-12 15:20:36,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:36,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:36,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:36,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:36,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:36,152 INFO L87 Difference]: Start difference. First operand 7253 states and 10270 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:40,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:40,302 INFO L93 Difference]: Finished difference Result 20723 states and 29422 transitions. [2022-07-12 15:20:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:20:40,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2022-07-12 15:20:40,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:40,389 INFO L225 Difference]: With dead ends: 20723 [2022-07-12 15:20:40,389 INFO L226 Difference]: Without dead ends: 13491 [2022-07-12 15:20:40,415 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 [2022-07-12 15:20:40,417 INFO L413 NwaCegarLoop]: 3125 mSDtfsCounter, 3223 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 1670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3684 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1670 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:40,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3684 Valid, 5852 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1670 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 15:20:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13491 states. [2022-07-12 15:20:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13491 to 13339. [2022-07-12 15:20:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13339 states, 9327 states have (on average 1.2998820628283478) internal successors, (12124), 9609 states have internal predecessors, (12124), 3368 states have call successors, (3368), 660 states have call predecessors, (3368), 641 states have return successors, (3396), 3207 states have call predecessors, (3396), 3364 states have call successors, (3396) [2022-07-12 15:20:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13339 states to 13339 states and 18888 transitions. [2022-07-12 15:20:40,831 INFO L78 Accepts]: Start accepts. Automaton has 13339 states and 18888 transitions. Word has length 121 [2022-07-12 15:20:40,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:40,833 INFO L495 AbstractCegarLoop]: Abstraction has 13339 states and 18888 transitions. [2022-07-12 15:20:40,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 13339 states and 18888 transitions. [2022-07-12 15:20:40,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-12 15:20:40,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:40,838 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] [2022-07-12 15:20:40,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 15:20:40,838 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)] === [2022-07-12 15:20:40,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:40,838 INFO L85 PathProgramCache]: Analyzing trace with hash 952905138, now seen corresponding path program 1 times [2022-07-12 15:20:40,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:40,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339231199] [2022-07-12 15:20:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:40,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 15:20:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-12 15:20:41,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:41,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339231199] [2022-07-12 15:20:41,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339231199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:41,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:41,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:41,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965065761] [2022-07-12 15:20:41,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:41,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:41,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:41,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:41,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:41,105 INFO L87 Difference]: Start difference. First operand 13339 states and 18888 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:45,160 INFO L93 Difference]: Finished difference Result 26532 states and 37569 transitions. [2022-07-12 15:20:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:20:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-07-12 15:20:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:45,226 INFO L225 Difference]: With dead ends: 26532 [2022-07-12 15:20:45,226 INFO L226 Difference]: Without dead ends: 13214 [2022-07-12 15:20:45,276 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 [2022-07-12 15:20:45,279 INFO L413 NwaCegarLoop]: 3369 mSDtfsCounter, 2777 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 2468 mSolverCounterSat, 1470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 3938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1470 IncrementalHoareTripleChecker+Valid, 2468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:45,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 6225 Invalid, 3938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1470 Valid, 2468 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 15:20:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13214 states. [2022-07-12 15:20:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13214 to 13050. [2022-07-12 15:20:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13050 states, 9086 states have (on average 1.2896764252696455) internal successors, (11718), 9356 states have internal predecessors, (11718), 3300 states have call successors, (3300), 682 states have call predecessors, (3300), 661 states have return successors, (3312), 3149 states have call predecessors, (3312), 3296 states have call successors, (3312) [2022-07-12 15:20:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13050 states to 13050 states and 18330 transitions. [2022-07-12 15:20:45,698 INFO L78 Accepts]: Start accepts. Automaton has 13050 states and 18330 transitions. Word has length 126 [2022-07-12 15:20:45,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:45,700 INFO L495 AbstractCegarLoop]: Abstraction has 13050 states and 18330 transitions. [2022-07-12 15:20:45,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 15:20:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13050 states and 18330 transitions. [2022-07-12 15:20:45,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-12 15:20:45,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:45,703 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] [2022-07-12 15:20:45,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 15:20:45,704 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)] === [2022-07-12 15:20:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash -929967373, now seen corresponding path program 1 times [2022-07-12 15:20:45,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:45,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586960318] [2022-07-12 15:20:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:45,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 15:20:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 15:20:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:20:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 15:20:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-12 15:20:46,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:46,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586960318] [2022-07-12 15:20:46,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586960318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:46,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:46,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745925300] [2022-07-12 15:20:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:46,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:46,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:46,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:46,059 INFO L87 Difference]: Start difference. First operand 13050 states and 18330 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:20:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:50,520 INFO L93 Difference]: Finished difference Result 34824 states and 49081 transitions. [2022-07-12 15:20:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:20:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 128 [2022-07-12 15:20:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:50,626 INFO L225 Difference]: With dead ends: 34824 [2022-07-12 15:20:50,627 INFO L226 Difference]: Without dead ends: 21795 [2022-07-12 15:20:50,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:20:50,668 INFO L413 NwaCegarLoop]: 3094 mSDtfsCounter, 3355 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 1726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 5875 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1726 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:50,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3827 Valid, 5875 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1726 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 15:20:50,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21795 states. [2022-07-12 15:20:51,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21795 to 21543. [2022-07-12 15:20:51,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21543 states, 14857 states have (on average 1.2852527428148348) internal successors, (19095), 15343 states have internal predecessors, (19095), 5562 states have call successors, (5562), 1156 states have call predecessors, (5562), 1121 states have return successors, (5666), 5275 states have call predecessors, (5666), 5558 states have call successors, (5666) [2022-07-12 15:20:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21543 states to 21543 states and 30323 transitions. [2022-07-12 15:20:51,378 INFO L78 Accepts]: Start accepts. Automaton has 21543 states and 30323 transitions. Word has length 128 [2022-07-12 15:20:51,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:51,379 INFO L495 AbstractCegarLoop]: Abstraction has 21543 states and 30323 transitions. [2022-07-12 15:20:51,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:20:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 21543 states and 30323 transitions. [2022-07-12 15:20:51,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 15:20:51,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:51,381 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2022-07-12 15:20:51,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 15:20:51,382 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-07-12 15:20:51,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash 629170201, now seen corresponding path program 1 times [2022-07-12 15:20:51,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:51,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513761616] [2022-07-12 15:20:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:20:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 15:20:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 15:20:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-07-12 15:20:51,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:51,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513761616] [2022-07-12 15:20:51,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513761616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:51,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:51,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:51,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191460039] [2022-07-12 15:20:51,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:51,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:51,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:51,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:51,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:51,572 INFO L87 Difference]: Start difference. First operand 21543 states and 30323 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 15:20:55,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:55,752 INFO L93 Difference]: Finished difference Result 62587 states and 88284 transitions. [2022-07-12 15:20:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:20:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 140 [2022-07-12 15:20:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:55,943 INFO L225 Difference]: With dead ends: 62587 [2022-07-12 15:20:55,943 INFO L226 Difference]: Without dead ends: 41065 [2022-07-12 15:20:56,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:20:56,044 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 3466 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3985 SdHoareTripleChecker+Valid, 6350 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:56,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3985 Valid, 6350 Invalid, 4206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1678 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-12 15:20:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41065 states. [2022-07-12 15:20:57,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41065 to 40647. [2022-07-12 15:20:57,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40647 states, 28070 states have (on average 1.2855717848236552) internal successors, (36086), 29012 states have internal predecessors, (36086), 10459 states have call successors, (10459), 2184 states have call predecessors, (10459), 2115 states have return successors, (10671), 9882 states have call predecessors, (10671), 10455 states have call successors, (10671) [2022-07-12 15:20:58,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40647 states to 40647 states and 57216 transitions. [2022-07-12 15:20:58,032 INFO L78 Accepts]: Start accepts. Automaton has 40647 states and 57216 transitions. Word has length 140 [2022-07-12 15:20:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:58,032 INFO L495 AbstractCegarLoop]: Abstraction has 40647 states and 57216 transitions. [2022-07-12 15:20:58,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 15:20:58,033 INFO L276 IsEmpty]: Start isEmpty. Operand 40647 states and 57216 transitions. [2022-07-12 15:20:58,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-12 15:20:58,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:58,035 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 8, 8, 8, 8, 8, 3, 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] [2022-07-12 15:20:58,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 15:20:58,036 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)] === [2022-07-12 15:20:58,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash -261790017, now seen corresponding path program 1 times [2022-07-12 15:20:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:20:58,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156838235] [2022-07-12 15:20:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:20:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:20:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:20:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:20:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:20:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:20:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:20:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:20:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:20:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:20:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:20:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 15:20:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:20:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 15:20:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 15:20:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 15:20:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-12 15:20:58,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:20:58,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156838235] [2022-07-12 15:20:58,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156838235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:58,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:58,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:20:58,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741574344] [2022-07-12 15:20:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:58,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:20:58,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:20:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:20:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:20:58,204 INFO L87 Difference]: Start difference. First operand 40647 states and 57216 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:21:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:01,377 INFO L93 Difference]: Finished difference Result 81577 states and 114997 transitions. [2022-07-12 15:21:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 15:21:01,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 159 [2022-07-12 15:21:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:01,641 INFO L225 Difference]: With dead ends: 81577 [2022-07-12 15:21:01,641 INFO L226 Difference]: Without dead ends: 41007 [2022-07-12 15:21:01,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:21:01,779 INFO L413 NwaCegarLoop]: 2766 mSDtfsCounter, 728 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:01,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 5514 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 15:21:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41007 states. [2022-07-12 15:21:02,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41007 to 40647. [2022-07-12 15:21:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40647 states, 28070 states have (on average 1.2844317776986107) internal successors, (36054), 29012 states have internal predecessors, (36054), 10459 states have call successors, (10459), 2184 states have call predecessors, (10459), 2115 states have return successors, (10671), 9882 states have call predecessors, (10671), 10455 states have call successors, (10671) [2022-07-12 15:21:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40647 states to 40647 states and 57184 transitions. [2022-07-12 15:21:03,217 INFO L78 Accepts]: Start accepts. Automaton has 40647 states and 57184 transitions. Word has length 159 [2022-07-12 15:21:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:03,218 INFO L495 AbstractCegarLoop]: Abstraction has 40647 states and 57184 transitions. [2022-07-12 15:21:03,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:21:03,218 INFO L276 IsEmpty]: Start isEmpty. Operand 40647 states and 57184 transitions. [2022-07-12 15:21:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 15:21:03,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:03,220 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:03,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 15:21:03,220 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:21:03,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:03,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1775343073, now seen corresponding path program 1 times [2022-07-12 15:21:03,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:03,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975447486] [2022-07-12 15:21:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:03,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:21:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:21:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:21:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:21:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 15:21:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 15:21:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:21:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 15:21:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:03,632 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-12 15:21:03,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975447486] [2022-07-12 15:21:03,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975447486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:03,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:03,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:21:03,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986265950] [2022-07-12 15:21:03,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:03,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:21:03,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:03,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:21:03,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:21:03,635 INFO L87 Difference]: Start difference. First operand 40647 states and 57184 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 15:21:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:08,661 INFO L93 Difference]: Finished difference Result 120389 states and 169841 transitions. [2022-07-12 15:21:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:21:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2022-07-12 15:21:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:09,181 INFO L225 Difference]: With dead ends: 120389 [2022-07-12 15:21:09,182 INFO L226 Difference]: Without dead ends: 79819 [2022-07-12 15:21:09,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:21:09,527 INFO L413 NwaCegarLoop]: 3662 mSDtfsCounter, 3331 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 1575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 6648 SdHoareTripleChecker+Invalid, 4091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1575 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:09,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 6648 Invalid, 4091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1575 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 15:21:09,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79819 states. [2022-07-12 15:21:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79819 to 79191. [2022-07-12 15:21:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79191 states, 54754 states have (on average 1.2853855426087593) internal successors, (70380), 56492 states have internal predecessors, (70380), 20317 states have call successors, (20317), 4238 states have call predecessors, (20317), 4117 states have return successors, (20745), 19324 states have call predecessors, (20745), 20313 states have call successors, (20745) [2022-07-12 15:21:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79191 states to 79191 states and 111442 transitions. [2022-07-12 15:21:12,234 INFO L78 Accepts]: Start accepts. Automaton has 79191 states and 111442 transitions. Word has length 175 [2022-07-12 15:21:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:12,235 INFO L495 AbstractCegarLoop]: Abstraction has 79191 states and 111442 transitions. [2022-07-12 15:21:12,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 15:21:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 79191 states and 111442 transitions. [2022-07-12 15:21:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 15:21:12,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:12,239 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:12,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 15:21:12,239 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)] === [2022-07-12 15:21:12,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:12,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1634794463, now seen corresponding path program 1 times [2022-07-12 15:21:12,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:12,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774153556] [2022-07-12 15:21:12,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:12,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:21:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:21:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:21:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:21:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 15:21:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 15:21:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:21:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 15:21:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-12 15:21:12,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:12,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774153556] [2022-07-12 15:21:12,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774153556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:12,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:12,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:21:12,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402175012] [2022-07-12 15:21:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:12,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:21:12,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:21:12,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:21:12,565 INFO L87 Difference]: Start difference. First operand 79191 states and 111442 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-12 15:21:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:16,778 INFO L93 Difference]: Finished difference Result 79821 states and 112591 transitions. [2022-07-12 15:21:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:21:16,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 175 [2022-07-12 15:21:16,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:17,167 INFO L225 Difference]: With dead ends: 79821 [2022-07-12 15:21:17,167 INFO L226 Difference]: Without dead ends: 79819 [2022-07-12 15:21:17,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:21:17,215 INFO L413 NwaCegarLoop]: 2758 mSDtfsCounter, 2947 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 1213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 7113 SdHoareTripleChecker+Invalid, 4589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1213 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:17,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 7113 Invalid, 4589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1213 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 15:21:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79819 states. [2022-07-12 15:21:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79819 to 79195. [2022-07-12 15:21:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79195 states, 54757 states have (on average 1.2853699070438482) internal successors, (70383), 56495 states have internal predecessors, (70383), 20317 states have call successors, (20317), 4239 states have call predecessors, (20317), 4118 states have return successors, (20745), 19324 states have call predecessors, (20745), 20313 states have call successors, (20745) [2022-07-12 15:21:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79195 states to 79195 states and 111445 transitions. [2022-07-12 15:21:20,068 INFO L78 Accepts]: Start accepts. Automaton has 79195 states and 111445 transitions. Word has length 175 [2022-07-12 15:21:20,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:20,069 INFO L495 AbstractCegarLoop]: Abstraction has 79195 states and 111445 transitions. [2022-07-12 15:21:20,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-12 15:21:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 79195 states and 111445 transitions. [2022-07-12 15:21:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-12 15:21:20,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:20,071 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:20,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 15:21:20,072 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)] === [2022-07-12 15:21:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash 856318463, now seen corresponding path program 1 times [2022-07-12 15:21:20,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:20,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993361898] [2022-07-12 15:21:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:20,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:21:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:21:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:21:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:21:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 15:21:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 15:21:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:21:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 15:21:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:21:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-12 15:21:20,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:20,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993361898] [2022-07-12 15:21:20,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993361898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:20,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:20,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:21:20,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200469594] [2022-07-12 15:21:20,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:20,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:21:20,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:20,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:21:20,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:21:20,335 INFO L87 Difference]: Start difference. First operand 79195 states and 111445 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-12 15:21:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:24,177 INFO L93 Difference]: Finished difference Result 79825 states and 112594 transitions. [2022-07-12 15:21:24,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:21:24,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 180 [2022-07-12 15:21:24,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:24,649 INFO L225 Difference]: With dead ends: 79825 [2022-07-12 15:21:24,650 INFO L226 Difference]: Without dead ends: 79823 [2022-07-12 15:21:24,681 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 [2022-07-12 15:21:24,683 INFO L413 NwaCegarLoop]: 2761 mSDtfsCounter, 2939 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 1212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 4588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1212 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:24,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3240 Valid, 7116 Invalid, 4588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1212 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 15:21:24,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79823 states. [2022-07-12 15:21:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79823 to 79199. [2022-07-12 15:21:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79199 states, 54760 states have (on average 1.285354273192111) internal successors, (70386), 56498 states have internal predecessors, (70386), 20317 states have call successors, (20317), 4240 states have call predecessors, (20317), 4119 states have return successors, (20745), 19324 states have call predecessors, (20745), 20313 states have call successors, (20745) [2022-07-12 15:21:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79199 states to 79199 states and 111448 transitions. [2022-07-12 15:21:27,475 INFO L78 Accepts]: Start accepts. Automaton has 79199 states and 111448 transitions. Word has length 180 [2022-07-12 15:21:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:27,475 INFO L495 AbstractCegarLoop]: Abstraction has 79199 states and 111448 transitions. [2022-07-12 15:21:27,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-12 15:21:27,476 INFO L276 IsEmpty]: Start isEmpty. Operand 79199 states and 111448 transitions. [2022-07-12 15:21:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-12 15:21:27,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:27,479 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:27,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 15:21:27,479 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)] === [2022-07-12 15:21:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:27,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1628575393, now seen corresponding path program 1 times [2022-07-12 15:21:27,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:27,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122730804] [2022-07-12 15:21:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:27,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:21:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:21:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:21:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:21:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 15:21:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 15:21:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:21:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 15:21:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:21:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 15:21:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-07-12 15:21:27,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:27,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122730804] [2022-07-12 15:21:27,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122730804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:27,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:27,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:21:27,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454548425] [2022-07-12 15:21:27,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:27,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:21:27,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:27,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:21:27,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:21:27,735 INFO L87 Difference]: Start difference. First operand 79199 states and 111448 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-12 15:21:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:32,361 INFO L93 Difference]: Finished difference Result 79829 states and 112597 transitions. [2022-07-12 15:21:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:21:32,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 185 [2022-07-12 15:21:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:32,694 INFO L225 Difference]: With dead ends: 79829 [2022-07-12 15:21:32,695 INFO L226 Difference]: Without dead ends: 79827 [2022-07-12 15:21:32,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:21:32,739 INFO L413 NwaCegarLoop]: 2761 mSDtfsCounter, 2939 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 1211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 4587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1211 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:32,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3240 Valid, 7116 Invalid, 4587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1211 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 15:21:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79827 states. [2022-07-12 15:21:34,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79827 to 79203. [2022-07-12 15:21:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79203 states, 54763 states have (on average 1.285338641053266) internal successors, (70389), 56501 states have internal predecessors, (70389), 20317 states have call successors, (20317), 4241 states have call predecessors, (20317), 4120 states have return successors, (20745), 19324 states have call predecessors, (20745), 20313 states have call successors, (20745) [2022-07-12 15:21:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79203 states to 79203 states and 111451 transitions. [2022-07-12 15:21:35,300 INFO L78 Accepts]: Start accepts. Automaton has 79203 states and 111451 transitions. Word has length 185 [2022-07-12 15:21:35,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:35,300 INFO L495 AbstractCegarLoop]: Abstraction has 79203 states and 111451 transitions. [2022-07-12 15:21:35,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-12 15:21:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand 79203 states and 111451 transitions. [2022-07-12 15:21:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 15:21:35,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:35,308 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:35,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 15:21:35,316 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)] === [2022-07-12 15:21:35,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash 474550015, now seen corresponding path program 1 times [2022-07-12 15:21:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:35,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214656489] [2022-07-12 15:21:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:35,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:21:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:21:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:21:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:21:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 15:21:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 15:21:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 15:21:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 15:21:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 15:21:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 15:21:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-12 15:21:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-07-12 15:21:35,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:35,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214656489] [2022-07-12 15:21:35,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214656489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:35,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:35,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 15:21:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797042313] [2022-07-12 15:21:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:35,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:21:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:21:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:21:35,543 INFO L87 Difference]: Start difference. First operand 79203 states and 111451 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-12 15:21:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:40,120 INFO L93 Difference]: Finished difference Result 79833 states and 112600 transitions. [2022-07-12 15:21:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:21:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 190 [2022-07-12 15:21:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:40,463 INFO L225 Difference]: With dead ends: 79833 [2022-07-12 15:21:40,463 INFO L226 Difference]: Without dead ends: 79831 [2022-07-12 15:21:40,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:21:40,507 INFO L413 NwaCegarLoop]: 2761 mSDtfsCounter, 2939 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 1210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 4586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1210 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:40,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3240 Valid, 7116 Invalid, 4586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1210 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 15:21:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79831 states. [2022-07-12 15:21:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79831 to 79207. [2022-07-12 15:21:42,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79207 states, 54766 states have (on average 1.2853230106270315) internal successors, (70392), 56504 states have internal predecessors, (70392), 20317 states have call successors, (20317), 4242 states have call predecessors, (20317), 4121 states have return successors, (20745), 19324 states have call predecessors, (20745), 20313 states have call successors, (20745) [2022-07-12 15:21:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79207 states to 79207 states and 111454 transitions. [2022-07-12 15:21:43,113 INFO L78 Accepts]: Start accepts. Automaton has 79207 states and 111454 transitions. Word has length 190 [2022-07-12 15:21:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:43,114 INFO L495 AbstractCegarLoop]: Abstraction has 79207 states and 111454 transitions. [2022-07-12 15:21:43,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-12 15:21:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 79207 states and 111454 transitions. [2022-07-12 15:21:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-12 15:21:43,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:43,117 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1] [2022-07-12 15:21:43,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 15:21:43,117 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-07-12 15:21:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:43,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1912668590, now seen corresponding path program 1 times [2022-07-12 15:21:43,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:21:43,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61177202] [2022-07-12 15:21:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:43,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:21:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:21:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:21:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:21:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:21:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:21:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:21:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:21:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:21:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 15:21:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 15:21:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 15:21:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 15:21:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 15:21:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 15:21:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:21:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 15:21:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 15:21:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-12 15:21:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-12 15:21:43,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:21:43,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61177202] [2022-07-12 15:21:43,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61177202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:43,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:43,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:21:43,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596487137] [2022-07-12 15:21:43,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:43,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:21:43,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:21:43,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:21:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:21:43,610 INFO L87 Difference]: Start difference. First operand 79207 states and 111454 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)