./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-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-irda-via-ircc.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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 08:04:09,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 08:04:09,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 08:04:09,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 08:04:09,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 08:04:09,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 08:04:09,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 08:04:09,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 08:04:09,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 08:04:09,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 08:04:09,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 08:04:09,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 08:04:09,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 08:04:09,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 08:04:09,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 08:04:09,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 08:04:09,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 08:04:09,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 08:04:09,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 08:04:09,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 08:04:09,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 08:04:09,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 08:04:09,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 08:04:09,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 08:04:09,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 08:04:09,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 08:04:09,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 08:04:09,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 08:04:09,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 08:04:09,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 08:04:09,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 08:04:09,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 08:04:09,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 08:04:09,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 08:04:09,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 08:04:09,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 08:04:09,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 08:04:09,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 08:04:09,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 08:04:09,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 08:04:09,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 08:04:09,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 08:04:09,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 08:04:09,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 08:04:09,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 08:04:09,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 08:04:09,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 08:04:09,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 08:04:09,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 08:04:09,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 08:04:09,519 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 08:04:09,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 08:04:09,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 08:04:09,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 08:04:09,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 08:04:09,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 08:04:09,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 08:04:09,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:04:09,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 08:04:09,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 08:04:09,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 08:04:09,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2021-11-17 08:04:09,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 08:04:09,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 08:04:09,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 08:04:09,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 08:04:09,736 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 08:04:09,737 INFO L432 ainManager$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-irda-via-ircc.cil.i [2021-11-17 08:04:09,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd7ababd4/7a46592c47a246209c0fe7ab06bf4e47/FLAG96129bb56 [2021-11-17 08:04:10,431 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 08:04:10,431 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-irda-via-ircc.cil.i [2021-11-17 08:04:10,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd7ababd4/7a46592c47a246209c0fe7ab06bf4e47/FLAG96129bb56 [2021-11-17 08:04:10,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd7ababd4/7a46592c47a246209c0fe7ab06bf4e47 [2021-11-17 08:04:10,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 08:04:10,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 08:04:10,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 08:04:10,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 08:04:10,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 08:04:10,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:04:10" (1/1) ... [2021-11-17 08:04:10,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d68d82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:10, skipping insertion in model container [2021-11-17 08:04:10,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:04:10" (1/1) ... [2021-11-17 08:04:10,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 08:04:10,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 08:04:12,528 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-irda-via-ircc.cil.i[329615,329628] [2021-11-17 08:04:12,531 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-irda-via-ircc.cil.i[329784,329797] [2021-11-17 08:04:12,531 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-irda-via-ircc.cil.i[329951,329964] [2021-11-17 08:04:12,532 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-irda-via-ircc.cil.i[330119,330132] [2021-11-17 08:04:12,572 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:04:12,609 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 08:04:12,866 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-irda-via-ircc.cil.i[329615,329628] [2021-11-17 08:04:12,866 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-irda-via-ircc.cil.i[329784,329797] [2021-11-17 08:04:12,867 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-irda-via-ircc.cil.i[329951,329964] [2021-11-17 08:04:12,867 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-irda-via-ircc.cil.i[330119,330132] [2021-11-17 08:04:12,872 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:04:12,982 INFO L208 MainTranslator]: Completed translation [2021-11-17 08:04:12,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12 WrapperNode [2021-11-17 08:04:12,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 08:04:12,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 08:04:12,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 08:04:12,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 08:04:12,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,184 INFO L137 Inliner]: procedures = 395, calls = 2038, calls flagged for inlining = 159, calls inlined = 138, statements flattened = 4299 [2021-11-17 08:04:13,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 08:04:13,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 08:04:13,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 08:04:13,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 08:04:13,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 08:04:13,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 08:04:13,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 08:04:13,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 08:04:13,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (1/1) ... [2021-11-17 08:04:13,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:04:13,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 08:04:13,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 08:04:13,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 08:04:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 08:04:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 08:04:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-11-17 08:04:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-11-17 08:04:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-11-17 08:04:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-11-17 08:04:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 08:04:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 08:04:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 08:04:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 08:04:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2021-11-17 08:04:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2021-11-17 08:04:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 08:04:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 08:04:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-11-17 08:04:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-11-17 08:04:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 08:04:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 08:04:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2021-11-17 08:04:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2021-11-17 08:04:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-11-17 08:04:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-11-17 08:04:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-17 08:04:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-17 08:04:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 08:04:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 08:04:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-11-17 08:04:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-11-17 08:04:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-11-17 08:04:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-11-17 08:04:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-17 08:04:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-17 08:04:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 08:04:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 08:04:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 08:04:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-11-17 08:04:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-11-17 08:04:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-11-17 08:04:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-11-17 08:04:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-17 08:04:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-17 08:04:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-11-17 08:04:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-11-17 08:04:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 08:04:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 08:04:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-11-17 08:04:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-11-17 08:04:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-11-17 08:04:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-11-17 08:04:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 08:04:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-11-17 08:04:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-11-17 08:04:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-17 08:04:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2021-11-17 08:04:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-11-17 08:04:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-11-17 08:04:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 08:04:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 08:04:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 08:04:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 08:04:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 08:04:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-11-17 08:04:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-11-17 08:04:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 08:04:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 08:04:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 08:04:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-11-17 08:04:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-11-17 08:04:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 08:04:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 08:04:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 08:04:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 08:04:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-11-17 08:04:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-11-17 08:04:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-11-17 08:04:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-11-17 08:04:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-11-17 08:04:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-11-17 08:04:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 08:04:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 08:04:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-11-17 08:04:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-11-17 08:04:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 08:04:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 08:04:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 08:04:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-11-17 08:04:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-11-17 08:04:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 08:04:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 08:04:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 08:04:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 08:04:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 08:04:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 08:04:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:04:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:04:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:04:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:04:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-11-17 08:04:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-11-17 08:04:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 08:04:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 08:04:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 08:04:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 08:04:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-11-17 08:04:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-11-17 08:04:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-11-17 08:04:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-11-17 08:04:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 08:04:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 08:04:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 08:04:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 08:04:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-11-17 08:04:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-11-17 08:04:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 08:04:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 08:04:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-11-17 08:04:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-11-17 08:04:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 08:04:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 08:04:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 08:04:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 08:04:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-11-17 08:04:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-11-17 08:04:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 08:04:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 08:04:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-17 08:04:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-17 08:04:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-11-17 08:04:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-11-17 08:04:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-11-17 08:04:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-11-17 08:04:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 08:04:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 08:04:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-11-17 08:04:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-11-17 08:04:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-11-17 08:04:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-11-17 08:04:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 08:04:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 08:04:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 08:04:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 08:04:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-11-17 08:04:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-11-17 08:04:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 08:04:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:04:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:04:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-17 08:04:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-17 08:04:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 08:04:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 08:04:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 08:04:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 08:04:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 08:04:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 08:04:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 08:04:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 08:04:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-11-17 08:04:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-11-17 08:04:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 08:04:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 08:04:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 08:04:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 08:04:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 08:04:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 08:04:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 08:04:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 08:04:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-17 08:04:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-17 08:04:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 08:04:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-17 08:04:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-17 08:04:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-11-17 08:04:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-11-17 08:04:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-17 08:04:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-17 08:04:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 08:04:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 08:04:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-17 08:04:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2021-11-17 08:04:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-11-17 08:04:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-11-17 08:04:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-11-17 08:04:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-11-17 08:04:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 08:04:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 08:04:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-11-17 08:04:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-11-17 08:04:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-11-17 08:04:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-11-17 08:04:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-11-17 08:04:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-11-17 08:04:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 08:04:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 08:04:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 08:04:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-17 08:04:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-17 08:04:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 08:04:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 08:04:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-17 08:04:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-17 08:04:13,995 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 08:04:13,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 08:04:14,170 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 08:04:16,343 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 08:04:16,654 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 08:04:16,666 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 08:04:16,666 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 08:04:16,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:04:16 BoogieIcfgContainer [2021-11-17 08:04:16,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 08:04:16,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 08:04:16,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 08:04:16,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 08:04:16,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 08:04:10" (1/3) ... [2021-11-17 08:04:16,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145794d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:04:16, skipping insertion in model container [2021-11-17 08:04:16,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:12" (2/3) ... [2021-11-17 08:04:16,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145794d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:04:16, skipping insertion in model container [2021-11-17 08:04:16,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:04:16" (3/3) ... [2021-11-17 08:04:16,676 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-17 08:04:16,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 08:04:16,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 08:04:16,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 08:04:16,720 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 08:04:16,720 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 08:04:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 1916 states, 1168 states have (on average 1.2671232876712328) internal successors, (1480), 1194 states have internal predecessors, (1480), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) [2021-11-17 08:04:16,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-17 08:04:16,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:16,762 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:16,762 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:16,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:16,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1683585667, now seen corresponding path program 1 times [2021-11-17 08:04:16,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:16,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126736202] [2021-11-17 08:04:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:16,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:04:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-17 08:04:17,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:17,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126736202] [2021-11-17 08:04:17,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126736202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:17,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:17,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:04:17,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940953023] [2021-11-17 08:04:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:17,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:04:17,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:17,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:04:17,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:04:17,249 INFO L87 Difference]: Start difference. First operand has 1916 states, 1168 states have (on average 1.2671232876712328) internal successors, (1480), 1194 states have internal predecessors, (1480), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 08:04:19,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:04:22,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:04:22,834 INFO L93 Difference]: Finished difference Result 5668 states and 8310 transitions. [2021-11-17 08:04:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:04:22,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2021-11-17 08:04:22,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:04:22,873 INFO L225 Difference]: With dead ends: 5668 [2021-11-17 08:04:22,873 INFO L226 Difference]: Without dead ends: 3758 [2021-11-17 08:04:22,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:04:22,888 INFO L933 BasicCegarLoop]: 2686 mSDtfsCounter, 3173 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 2339 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:04:22,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 5089 Invalid, 4726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2339 Valid, 2386 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-17 08:04:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2021-11-17 08:04:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3726. [2021-11-17 08:04:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 2276 states have (on average 1.2640597539543057) internal successors, (2877), 2326 states have internal predecessors, (2877), 1268 states have call successors, (1268), 180 states have call predecessors, (1268), 179 states have return successors, (1265), 1241 states have call predecessors, (1265), 1265 states have call successors, (1265) [2021-11-17 08:04:23,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5410 transitions. [2021-11-17 08:04:23,153 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5410 transitions. Word has length 79 [2021-11-17 08:04:23,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:04:23,154 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 5410 transitions. [2021-11-17 08:04:23,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 08:04:23,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5410 transitions. [2021-11-17 08:04:23,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-17 08:04:23,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:23,157 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:23,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 08:04:23,158 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:23,159 INFO L85 PathProgramCache]: Analyzing trace with hash 133917900, now seen corresponding path program 1 times [2021-11-17 08:04:23,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:23,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011679548] [2021-11-17 08:04:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:23,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 08:04:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-17 08:04:23,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:23,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011679548] [2021-11-17 08:04:23,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011679548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:23,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:23,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:04:23,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899586077] [2021-11-17 08:04:23,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:23,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:04:23,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:23,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:04:23,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:04:23,347 INFO L87 Difference]: Start difference. First operand 3726 states and 5410 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 08:04:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:04:27,498 INFO L93 Difference]: Finished difference Result 10364 states and 15087 transitions. [2021-11-17 08:04:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:04:27,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2021-11-17 08:04:27,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:04:27,553 INFO L225 Difference]: With dead ends: 10364 [2021-11-17 08:04:27,554 INFO L226 Difference]: Without dead ends: 6653 [2021-11-17 08:04:27,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:04:27,572 INFO L933 BasicCegarLoop]: 2652 mSDtfsCounter, 2655 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 2132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2132 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:04:27,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3199 Valid, 5091 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2132 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-17 08:04:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6653 states. [2021-11-17 08:04:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6653 to 6584. [2021-11-17 08:04:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6584 states, 3985 states have (on average 1.256210790464241) internal successors, (5006), 4085 states have internal predecessors, (5006), 2267 states have call successors, (2267), 330 states have call predecessors, (2267), 329 states have return successors, (2302), 2208 states have call predecessors, (2302), 2264 states have call successors, (2302) [2021-11-17 08:04:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6584 states to 6584 states and 9575 transitions. [2021-11-17 08:04:27,847 INFO L78 Accepts]: Start accepts. Automaton has 6584 states and 9575 transitions. Word has length 83 [2021-11-17 08:04:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:04:27,849 INFO L470 AbstractCegarLoop]: Abstraction has 6584 states and 9575 transitions. [2021-11-17 08:04:27,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 08:04:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6584 states and 9575 transitions. [2021-11-17 08:04:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-17 08:04:27,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:27,855 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:27,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 08:04:27,855 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:27,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash 593600064, now seen corresponding path program 1 times [2021-11-17 08:04:27,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:27,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920362680] [2021-11-17 08:04:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:27,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 08:04:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-17 08:04:28,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:28,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920362680] [2021-11-17 08:04:28,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920362680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:28,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:28,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:04:28,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823758082] [2021-11-17 08:04:28,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:28,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:04:28,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:04:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:04:28,097 INFO L87 Difference]: Start difference. First operand 6584 states and 9575 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 08:04:29,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:04:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:04:34,237 INFO L93 Difference]: Finished difference Result 18862 states and 27498 transitions. [2021-11-17 08:04:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:04:34,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2021-11-17 08:04:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:04:34,310 INFO L225 Difference]: With dead ends: 18862 [2021-11-17 08:04:34,310 INFO L226 Difference]: Without dead ends: 12293 [2021-11-17 08:04:34,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:04:34,342 INFO L933 BasicCegarLoop]: 2655 mSDtfsCounter, 3007 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 2339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3581 SdHoareTripleChecker+Valid, 5066 SdHoareTripleChecker+Invalid, 4688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2339 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:04:34,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3581 Valid, 5066 Invalid, 4688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2339 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-17 08:04:34,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12293 states. [2021-11-17 08:04:34,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12293 to 12188. [2021-11-17 08:04:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12188 states, 7367 states have (on average 1.2547848513641917) internal successors, (9244), 7569 states have internal predecessors, (9244), 4205 states have call successors, (4205), 622 states have call predecessors, (4205), 613 states have return successors, (4294), 4068 states have call predecessors, (4294), 4202 states have call successors, (4294) [2021-11-17 08:04:34,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12188 states to 12188 states and 17743 transitions. [2021-11-17 08:04:34,963 INFO L78 Accepts]: Start accepts. Automaton has 12188 states and 17743 transitions. Word has length 87 [2021-11-17 08:04:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:04:34,964 INFO L470 AbstractCegarLoop]: Abstraction has 12188 states and 17743 transitions. [2021-11-17 08:04:34,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 08:04:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 12188 states and 17743 transitions. [2021-11-17 08:04:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-17 08:04:34,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:34,972 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:34,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 08:04:34,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:34,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1823001785, now seen corresponding path program 1 times [2021-11-17 08:04:34,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:34,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220303921] [2021-11-17 08:04:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:34,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:04:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:04:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:04:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:04:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:04:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:04:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:04:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-17 08:04:35,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:35,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220303921] [2021-11-17 08:04:35,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220303921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:35,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:35,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:04:35,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92421991] [2021-11-17 08:04:35,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:35,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:04:35,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:04:35,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:04:35,181 INFO L87 Difference]: Start difference. First operand 12188 states and 17743 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 08:04:37,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:04:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:04:42,727 INFO L93 Difference]: Finished difference Result 24525 states and 35731 transitions. [2021-11-17 08:04:42,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:04:42,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2021-11-17 08:04:42,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:04:42,855 INFO L225 Difference]: With dead ends: 24525 [2021-11-17 08:04:42,855 INFO L226 Difference]: Without dead ends: 18302 [2021-11-17 08:04:42,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:04:42,886 INFO L933 BasicCegarLoop]: 4701 mSDtfsCounter, 2445 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 1755 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 4174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1755 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-17 08:04:42,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3059 Valid, 7793 Invalid, 4174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1755 Valid, 2418 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-17 08:04:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18302 states. [2021-11-17 08:04:43,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18302 to 18182. [2021-11-17 08:04:43,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18182 states, 10985 states have (on average 1.2548020027309967) internal successors, (13784), 11283 states have internal predecessors, (13784), 6275 states have call successors, (6275), 932 states have call predecessors, (6275), 919 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:04:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18182 states to 18182 states and 26469 transitions. [2021-11-17 08:04:43,642 INFO L78 Accepts]: Start accepts. Automaton has 18182 states and 26469 transitions. Word has length 134 [2021-11-17 08:04:43,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:04:43,643 INFO L470 AbstractCegarLoop]: Abstraction has 18182 states and 26469 transitions. [2021-11-17 08:04:43,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 08:04:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 18182 states and 26469 transitions. [2021-11-17 08:04:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-17 08:04:43,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:43,646 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:43,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 08:04:43,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:43,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:43,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1400299959, now seen corresponding path program 1 times [2021-11-17 08:04:43,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:43,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268020423] [2021-11-17 08:04:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:43,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:04:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:04:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:04:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:04:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:04:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:43,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:04:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:04:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:44,006 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-17 08:04:44,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:44,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268020423] [2021-11-17 08:04:44,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268020423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:44,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:44,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:04:44,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004725528] [2021-11-17 08:04:44,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:44,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:04:44,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:44,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:04:44,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:04:44,009 INFO L87 Difference]: Start difference. First operand 18182 states and 26469 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 08:04:48,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:04:48,617 INFO L93 Difference]: Finished difference Result 18284 states and 26665 transitions. [2021-11-17 08:04:48,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:04:48,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-11-17 08:04:48,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:04:48,684 INFO L225 Difference]: With dead ends: 18284 [2021-11-17 08:04:48,685 INFO L226 Difference]: Without dead ends: 18282 [2021-11-17 08:04:48,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:04:48,694 INFO L933 BasicCegarLoop]: 2390 mSDtfsCounter, 2479 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 4600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1753 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-17 08:04:48,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2733 Valid, 6494 Invalid, 4600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1753 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-17 08:04:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18282 states. [2021-11-17 08:04:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18282 to 18186. [2021-11-17 08:04:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18186 states, 10988 states have (on average 1.2547324353840554) internal successors, (13787), 11286 states have internal predecessors, (13787), 6275 states have call successors, (6275), 933 states have call predecessors, (6275), 920 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:04:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18186 states to 18186 states and 26472 transitions. [2021-11-17 08:04:49,442 INFO L78 Accepts]: Start accepts. Automaton has 18186 states and 26472 transitions. Word has length 134 [2021-11-17 08:04:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:04:49,443 INFO L470 AbstractCegarLoop]: Abstraction has 18186 states and 26472 transitions. [2021-11-17 08:04:49,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 08:04:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 18186 states and 26472 transitions. [2021-11-17 08:04:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-17 08:04:49,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:49,448 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:49,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 08:04:49,449 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1077871985, now seen corresponding path program 1 times [2021-11-17 08:04:49,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:49,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196261764] [2021-11-17 08:04:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:49,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:04:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:04:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:04:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:04:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:04:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:04:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:04:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:04:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-17 08:04:49,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:49,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196261764] [2021-11-17 08:04:49,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196261764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:49,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:49,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:04:49,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683655983] [2021-11-17 08:04:49,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:49,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:04:49,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:04:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:04:49,664 INFO L87 Difference]: Start difference. First operand 18186 states and 26472 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 08:04:51,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:04:53,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:04:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:04:56,553 INFO L93 Difference]: Finished difference Result 18288 states and 26668 transitions. [2021-11-17 08:04:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:04:56,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2021-11-17 08:04:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:04:56,646 INFO L225 Difference]: With dead ends: 18288 [2021-11-17 08:04:56,647 INFO L226 Difference]: Without dead ends: 18286 [2021-11-17 08:04:56,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:04:56,666 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2471 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2846 mSolverCounterSat, 1752 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 4599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 2846 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:04:56,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 6501 Invalid, 4599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1752 Valid, 2846 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-17 08:04:56,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18286 states. [2021-11-17 08:04:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18286 to 18190. [2021-11-17 08:04:57,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18190 states, 10991 states have (on average 1.2546629060140115) internal successors, (13790), 11289 states have internal predecessors, (13790), 6275 states have call successors, (6275), 934 states have call predecessors, (6275), 921 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:04:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18190 states to 18190 states and 26475 transitions. [2021-11-17 08:04:57,465 INFO L78 Accepts]: Start accepts. Automaton has 18190 states and 26475 transitions. Word has length 139 [2021-11-17 08:04:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:04:57,466 INFO L470 AbstractCegarLoop]: Abstraction has 18190 states and 26475 transitions. [2021-11-17 08:04:57,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 08:04:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18190 states and 26475 transitions. [2021-11-17 08:04:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-17 08:04:57,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:04:57,469 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:04:57,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 08:04:57,470 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:04:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:04:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 696282889, now seen corresponding path program 1 times [2021-11-17 08:04:57,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:04:57,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239126934] [2021-11-17 08:04:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:04:57,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:04:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:04:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:04:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:04:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:04:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:04:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:04:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:04:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:04:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:04:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:04:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:04:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:04:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:04:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:04:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:04:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:04:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:04:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-11-17 08:04:57,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:04:57,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239126934] [2021-11-17 08:04:57,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239126934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:04:57,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:04:57,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:04:57,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276441041] [2021-11-17 08:04:57,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:04:57,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:04:57,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:04:57,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:04:57,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:04:57,696 INFO L87 Difference]: Start difference. First operand 18190 states and 26475 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 08:05:00,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:05:03,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:03,588 INFO L93 Difference]: Finished difference Result 18292 states and 26671 transitions. [2021-11-17 08:05:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:03,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2021-11-17 08:05:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:03,675 INFO L225 Difference]: With dead ends: 18292 [2021-11-17 08:05:03,675 INFO L226 Difference]: Without dead ends: 18290 [2021-11-17 08:05:03,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:05:03,693 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2471 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 4598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1751 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:03,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 6501 Invalid, 4598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1751 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-11-17 08:05:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18290 states. [2021-11-17 08:05:04,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18290 to 18194. [2021-11-17 08:05:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18194 states, 10994 states have (on average 1.2545934145897761) internal successors, (13793), 11292 states have internal predecessors, (13793), 6275 states have call successors, (6275), 935 states have call predecessors, (6275), 922 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:05:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18194 states to 18194 states and 26478 transitions. [2021-11-17 08:05:04,446 INFO L78 Accepts]: Start accepts. Automaton has 18194 states and 26478 transitions. Word has length 144 [2021-11-17 08:05:04,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:04,447 INFO L470 AbstractCegarLoop]: Abstraction has 18194 states and 26478 transitions. [2021-11-17 08:05:04,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 08:05:04,448 INFO L276 IsEmpty]: Start isEmpty. Operand 18194 states and 26478 transitions. [2021-11-17 08:05:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-17 08:05:04,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:04,456 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:04,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 08:05:04,456 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:04,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash 288775217, now seen corresponding path program 1 times [2021-11-17 08:05:04,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:04,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755917622] [2021-11-17 08:05:04,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:04,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:05:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:05:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:05:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:05:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-17 08:05:04,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:04,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755917622] [2021-11-17 08:05:04,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755917622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:04,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:04,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:04,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985240113] [2021-11-17 08:05:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:04,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:04,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:04,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:04,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:04,634 INFO L87 Difference]: Start difference. First operand 18194 states and 26478 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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) [2021-11-17 08:05:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:09,220 INFO L93 Difference]: Finished difference Result 18296 states and 26674 transitions. [2021-11-17 08:05:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:09,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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 149 [2021-11-17 08:05:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:09,317 INFO L225 Difference]: With dead ends: 18296 [2021-11-17 08:05:09,318 INFO L226 Difference]: Without dead ends: 18294 [2021-11-17 08:05:09,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:05:09,333 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2471 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 4597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1750 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:09,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2725 Valid, 6497 Invalid, 4597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1750 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-17 08:05:09,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18294 states. [2021-11-17 08:05:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18294 to 18198. [2021-11-17 08:05:10,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18198 states, 10997 states have (on average 1.2545239610802947) internal successors, (13796), 11295 states have internal predecessors, (13796), 6275 states have call successors, (6275), 936 states have call predecessors, (6275), 923 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:05:10,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18198 states to 18198 states and 26481 transitions. [2021-11-17 08:05:10,119 INFO L78 Accepts]: Start accepts. Automaton has 18198 states and 26481 transitions. Word has length 149 [2021-11-17 08:05:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:10,119 INFO L470 AbstractCegarLoop]: Abstraction has 18198 states and 26481 transitions. [2021-11-17 08:05:10,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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) [2021-11-17 08:05:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 18198 states and 26481 transitions. [2021-11-17 08:05:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-17 08:05:10,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:10,123 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:10,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 08:05:10,124 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:10,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1670086601, now seen corresponding path program 1 times [2021-11-17 08:05:10,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:10,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900614985] [2021-11-17 08:05:10,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:10,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:05:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:05:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:05:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:05:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 08:05:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-17 08:05:10,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:10,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900614985] [2021-11-17 08:05:10,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900614985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:10,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:10,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:10,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210893331] [2021-11-17 08:05:10,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:10,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:10,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:10,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:10,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:10,339 INFO L87 Difference]: Start difference. First operand 18198 states and 26481 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 08:05:12,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:05:15,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:15,016 INFO L93 Difference]: Finished difference Result 18300 states and 26677 transitions. [2021-11-17 08:05:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:15,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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 154 [2021-11-17 08:05:15,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:15,084 INFO L225 Difference]: With dead ends: 18300 [2021-11-17 08:05:15,085 INFO L226 Difference]: Without dead ends: 18298 [2021-11-17 08:05:15,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:05:15,094 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2471 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1749 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:15,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2725 Valid, 6497 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1749 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-17 08:05:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18298 states. [2021-11-17 08:05:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18298 to 18202. [2021-11-17 08:05:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18202 states, 11000 states have (on average 1.2544545454545455) internal successors, (13799), 11298 states have internal predecessors, (13799), 6275 states have call successors, (6275), 937 states have call predecessors, (6275), 924 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:05:16,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18202 states to 18202 states and 26484 transitions. [2021-11-17 08:05:16,046 INFO L78 Accepts]: Start accepts. Automaton has 18202 states and 26484 transitions. Word has length 154 [2021-11-17 08:05:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:16,046 INFO L470 AbstractCegarLoop]: Abstraction has 18202 states and 26484 transitions. [2021-11-17 08:05:16,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 08:05:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 18202 states and 26484 transitions. [2021-11-17 08:05:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-17 08:05:16,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:16,051 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:16,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 08:05:16,051 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash -76418319, now seen corresponding path program 1 times [2021-11-17 08:05:16,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:16,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760186698] [2021-11-17 08:05:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:16,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:05:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:05:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:05:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:05:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 08:05:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:05:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-11-17 08:05:16,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:16,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760186698] [2021-11-17 08:05:16,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760186698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:16,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:16,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:16,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507441700] [2021-11-17 08:05:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:16,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:16,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:16,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:16,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:16,237 INFO L87 Difference]: Start difference. First operand 18202 states and 26484 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 08:05:20,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:20,329 INFO L93 Difference]: Finished difference Result 18304 states and 26680 transitions. [2021-11-17 08:05:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:20,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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 159 [2021-11-17 08:05:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:20,423 INFO L225 Difference]: With dead ends: 18304 [2021-11-17 08:05:20,424 INFO L226 Difference]: Without dead ends: 18302 [2021-11-17 08:05:20,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:05:20,444 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2471 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 4595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1748 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:20,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 6501 Invalid, 4595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1748 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-17 08:05:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18302 states. [2021-11-17 08:05:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18302 to 18206. [2021-11-17 08:05:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18206 states, 11003 states have (on average 1.2543851676815414) internal successors, (13802), 11301 states have internal predecessors, (13802), 6275 states have call successors, (6275), 938 states have call predecessors, (6275), 925 states have return successors, (6410), 6074 states have call predecessors, (6410), 6272 states have call successors, (6410) [2021-11-17 08:05:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18206 states to 18206 states and 26487 transitions. [2021-11-17 08:05:21,238 INFO L78 Accepts]: Start accepts. Automaton has 18206 states and 26487 transitions. Word has length 159 [2021-11-17 08:05:21,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:21,239 INFO L470 AbstractCegarLoop]: Abstraction has 18206 states and 26487 transitions. [2021-11-17 08:05:21,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 08:05:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand 18206 states and 26487 transitions. [2021-11-17 08:05:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-17 08:05:21,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:21,243 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:21,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 08:05:21,243 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:21,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash 925572861, now seen corresponding path program 1 times [2021-11-17 08:05:21,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:21,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106843226] [2021-11-17 08:05:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:21,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 08:05:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:05:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:05:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:05:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:05:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:05:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 08:05:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:05:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-17 08:05:21,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:21,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106843226] [2021-11-17 08:05:21,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106843226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:21,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:21,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:05:21,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705857451] [2021-11-17 08:05:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:21,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:05:21,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:05:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:05:21,399 INFO L87 Difference]: Start difference. First operand 18206 states and 26487 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-17 08:05:23,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:05:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:32,320 INFO L93 Difference]: Finished difference Result 37428 states and 54572 transitions. [2021-11-17 08:05:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2021-11-17 08:05:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:32,394 INFO L225 Difference]: With dead ends: 37428 [2021-11-17 08:05:32,395 INFO L226 Difference]: Without dead ends: 19237 [2021-11-17 08:05:32,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:05:32,453 INFO L933 BasicCegarLoop]: 2955 mSDtfsCounter, 3083 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 3467 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 5425 SdHoareTripleChecker+Invalid, 6193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3467 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:32,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 5425 Invalid, 6193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3467 Valid, 2725 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2021-11-17 08:05:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19237 states. [2021-11-17 08:05:33,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19237 to 18929. [2021-11-17 08:05:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18929 states, 11395 states have (on average 1.2537955243527863) internal successors, (14287), 11675 states have internal predecessors, (14287), 6544 states have call successors, (6544), 988 states have call predecessors, (6544), 987 states have return successors, (6649), 6373 states have call predecessors, (6649), 6541 states have call successors, (6649) [2021-11-17 08:05:33,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18929 states to 18929 states and 27480 transitions. [2021-11-17 08:05:33,486 INFO L78 Accepts]: Start accepts. Automaton has 18929 states and 27480 transitions. Word has length 156 [2021-11-17 08:05:33,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:33,486 INFO L470 AbstractCegarLoop]: Abstraction has 18929 states and 27480 transitions. [2021-11-17 08:05:33,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-17 08:05:33,486 INFO L276 IsEmpty]: Start isEmpty. Operand 18929 states and 27480 transitions. [2021-11-17 08:05:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-17 08:05:33,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:33,489 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:33,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 08:05:33,490 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:33,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -584639198, now seen corresponding path program 1 times [2021-11-17 08:05:33,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:33,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348823306] [2021-11-17 08:05:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:33,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:05:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 08:05:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 08:05:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:05:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:05:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:05:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:05:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:05:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:05:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-17 08:05:33,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:33,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348823306] [2021-11-17 08:05:33,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348823306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:33,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:33,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:33,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156628890] [2021-11-17 08:05:33,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:33,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:33,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:33,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:33,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:33,690 INFO L87 Difference]: Start difference. First operand 18929 states and 27480 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 08:05:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:38,295 INFO L93 Difference]: Finished difference Result 19043 states and 27686 transitions. [2021-11-17 08:05:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:38,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 184 [2021-11-17 08:05:38,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:38,367 INFO L225 Difference]: With dead ends: 19043 [2021-11-17 08:05:38,367 INFO L226 Difference]: Without dead ends: 19041 [2021-11-17 08:05:38,378 INFO L932 BasicCegarLoop]: 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 [2021-11-17 08:05:38,379 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2460 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 4594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1747 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:38,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2711 Valid, 6501 Invalid, 4594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1747 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-17 08:05:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19041 states. [2021-11-17 08:05:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19041 to 18933. [2021-11-17 08:05:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18933 states, 11398 states have (on average 1.2537287243376032) internal successors, (14290), 11678 states have internal predecessors, (14290), 6544 states have call successors, (6544), 989 states have call predecessors, (6544), 988 states have return successors, (6649), 6373 states have call predecessors, (6649), 6541 states have call successors, (6649) [2021-11-17 08:05:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18933 states to 18933 states and 27483 transitions. [2021-11-17 08:05:39,421 INFO L78 Accepts]: Start accepts. Automaton has 18933 states and 27483 transitions. Word has length 184 [2021-11-17 08:05:39,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:39,421 INFO L470 AbstractCegarLoop]: Abstraction has 18933 states and 27483 transitions. [2021-11-17 08:05:39,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 08:05:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 18933 states and 27483 transitions. [2021-11-17 08:05:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-17 08:05:39,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:39,424 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:39,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 08:05:39,424 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash -878054216, now seen corresponding path program 1 times [2021-11-17 08:05:39,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:39,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814578744] [2021-11-17 08:05:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:39,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:05:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 08:05:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 08:05:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:05:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:05:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:05:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:05:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:05:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:05:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:05:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2021-11-17 08:05:39,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:39,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814578744] [2021-11-17 08:05:39,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814578744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:39,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:39,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:39,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706155847] [2021-11-17 08:05:39,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:39,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:39,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:39,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:39,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:39,624 INFO L87 Difference]: Start difference. First operand 18933 states and 27483 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 08:05:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:45,691 INFO L93 Difference]: Finished difference Result 19047 states and 27689 transitions. [2021-11-17 08:05:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:05:45,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 189 [2021-11-17 08:05:45,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:45,763 INFO L225 Difference]: With dead ends: 19047 [2021-11-17 08:05:45,763 INFO L226 Difference]: Without dead ends: 19045 [2021-11-17 08:05:45,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:05:45,777 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2460 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 4593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1746 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:45,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2712 Valid, 6497 Invalid, 4593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1746 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-17 08:05:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19045 states. [2021-11-17 08:05:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19045 to 18937. [2021-11-17 08:05:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18937 states, 11401 states have (on average 1.253661959477239) internal successors, (14293), 11681 states have internal predecessors, (14293), 6544 states have call successors, (6544), 990 states have call predecessors, (6544), 989 states have return successors, (6649), 6373 states have call predecessors, (6649), 6541 states have call successors, (6649) [2021-11-17 08:05:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18937 states to 18937 states and 27486 transitions. [2021-11-17 08:05:46,765 INFO L78 Accepts]: Start accepts. Automaton has 18937 states and 27486 transitions. Word has length 189 [2021-11-17 08:05:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:46,765 INFO L470 AbstractCegarLoop]: Abstraction has 18937 states and 27486 transitions. [2021-11-17 08:05:46,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 08:05:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 18937 states and 27486 transitions. [2021-11-17 08:05:46,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-17 08:05:46,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:46,768 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:46,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 08:05:46,769 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1810046647, now seen corresponding path program 1 times [2021-11-17 08:05:46,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:46,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717776565] [2021-11-17 08:05:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:46,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:05:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:05:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:05:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:05:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 08:05:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:05:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:05:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:05:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:05:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:46,930 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-11-17 08:05:46,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:46,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717776565] [2021-11-17 08:05:46,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717776565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:46,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:46,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:46,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376047656] [2021-11-17 08:05:46,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:46,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:46,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:46,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:46,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:46,932 INFO L87 Difference]: Start difference. First operand 18937 states and 27486 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 08:05:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:05:53,927 INFO L93 Difference]: Finished difference Result 24653 states and 36002 transitions. [2021-11-17 08:05:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 08:05:53,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 174 [2021-11-17 08:05:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:05:54,045 INFO L225 Difference]: With dead ends: 24653 [2021-11-17 08:05:54,045 INFO L226 Difference]: Without dead ends: 24651 [2021-11-17 08:05:54,064 INFO L932 BasicCegarLoop]: 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 [2021-11-17 08:05:54,065 INFO L933 BasicCegarLoop]: 2960 mSDtfsCounter, 2030 mSDsluCounter, 5359 mSDsCounter, 0 mSdLazyCounter, 5098 mSolverCounterSat, 1614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 8319 SdHoareTripleChecker+Invalid, 6712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1614 IncrementalHoareTripleChecker+Valid, 5098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:05:54,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2495 Valid, 8319 Invalid, 6712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1614 Valid, 5098 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-17 08:05:54,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24651 states. [2021-11-17 08:05:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24651 to 24535. [2021-11-17 08:05:55,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24535 states, 14334 states have (on average 1.2494767685223942) internal successors, (17910), 14668 states have internal predecessors, (17910), 8890 states have call successors, (8890), 1309 states have call predecessors, (8890), 1308 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2021-11-17 08:05:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24535 states to 24535 states and 35795 transitions. [2021-11-17 08:05:55,503 INFO L78 Accepts]: Start accepts. Automaton has 24535 states and 35795 transitions. Word has length 174 [2021-11-17 08:05:55,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:05:55,503 INFO L470 AbstractCegarLoop]: Abstraction has 24535 states and 35795 transitions. [2021-11-17 08:05:55,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 08:05:55,504 INFO L276 IsEmpty]: Start isEmpty. Operand 24535 states and 35795 transitions. [2021-11-17 08:05:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-17 08:05:55,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:05:55,506 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:05:55,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 08:05:55,507 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:05:55,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:05:55,507 INFO L85 PathProgramCache]: Analyzing trace with hash 365244088, now seen corresponding path program 1 times [2021-11-17 08:05:55,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:05:55,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113434323] [2021-11-17 08:05:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:05:55,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:05:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:05:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:05:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:05:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:05:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:05:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:05:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:05:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:05:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:05:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:05:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:05:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:05:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:05:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:05:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 08:05:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 08:05:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:05:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:05:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:05:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:05:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:05:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:05:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:05:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 08:05:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:05:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:05:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 08:05:55,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:05:55,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113434323] [2021-11-17 08:05:55,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113434323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:05:55,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:05:55,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:05:55,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134450626] [2021-11-17 08:05:55,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:05:55,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:05:55,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:05:55,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:05:55,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:05:55,690 INFO L87 Difference]: Start difference. First operand 24535 states and 35795 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 08:06:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:06:01,498 INFO L93 Difference]: Finished difference Result 24657 states and 36005 transitions. [2021-11-17 08:06:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:06:01,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 199 [2021-11-17 08:06:01,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:06:01,602 INFO L225 Difference]: With dead ends: 24657 [2021-11-17 08:06:01,603 INFO L226 Difference]: Without dead ends: 24655 [2021-11-17 08:06:01,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:06:01,618 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2460 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 4591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1744 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-17 08:06:01,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2712 Valid, 6497 Invalid, 4591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1744 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-17 08:06:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24655 states. [2021-11-17 08:06:02,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24655 to 24539. [2021-11-17 08:06:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24539 states, 14337 states have (on average 1.2494245658087466) internal successors, (17913), 14671 states have internal predecessors, (17913), 8890 states have call successors, (8890), 1310 states have call predecessors, (8890), 1309 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2021-11-17 08:06:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24539 states to 24539 states and 35798 transitions. [2021-11-17 08:06:03,135 INFO L78 Accepts]: Start accepts. Automaton has 24539 states and 35798 transitions. Word has length 199 [2021-11-17 08:06:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:06:03,136 INFO L470 AbstractCegarLoop]: Abstraction has 24539 states and 35798 transitions. [2021-11-17 08:06:03,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 08:06:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand 24539 states and 35798 transitions. [2021-11-17 08:06:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-17 08:06:03,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:06:03,139 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:06:03,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 08:06:03,139 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:06:03,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:06:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1287441911, now seen corresponding path program 1 times [2021-11-17 08:06:03,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:06:03,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148689901] [2021-11-17 08:06:03,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:06:03,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:06:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:06:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:06:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:06:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:06:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:06:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:06:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:06:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:06:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:06:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:06:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:06:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:06:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:06:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:06:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:06:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 08:06:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:06:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:06:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:06:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:06:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:06:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:06:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-17 08:06:03,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:06:03,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148689901] [2021-11-17 08:06:03,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148689901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:06:03,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:06:03,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:06:03,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362979317] [2021-11-17 08:06:03,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:06:03,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:06:03,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:06:03,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:06:03,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:06:03,307 INFO L87 Difference]: Start difference. First operand 24539 states and 35798 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 08:06:04,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:06:09,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:06:09,950 INFO L93 Difference]: Finished difference Result 24661 states and 36008 transitions. [2021-11-17 08:06:09,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:06:09,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2021-11-17 08:06:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:06:10,084 INFO L225 Difference]: With dead ends: 24661 [2021-11-17 08:06:10,085 INFO L226 Difference]: Without dead ends: 24659 [2021-11-17 08:06:10,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:06:10,110 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2471 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 4590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1743 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-17 08:06:10,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2725 Valid, 6497 Invalid, 4590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1743 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-17 08:06:10,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24659 states. [2021-11-17 08:06:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24659 to 24543. [2021-11-17 08:06:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24543 states, 14340 states have (on average 1.2493723849372385) internal successors, (17916), 14674 states have internal predecessors, (17916), 8890 states have call successors, (8890), 1311 states have call predecessors, (8890), 1310 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2021-11-17 08:06:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24543 states to 24543 states and 35801 transitions. [2021-11-17 08:06:11,547 INFO L78 Accepts]: Start accepts. Automaton has 24543 states and 35801 transitions. Word has length 184 [2021-11-17 08:06:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:06:11,548 INFO L470 AbstractCegarLoop]: Abstraction has 24543 states and 35801 transitions. [2021-11-17 08:06:11,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 08:06:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand 24543 states and 35801 transitions. [2021-11-17 08:06:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 08:06:11,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:06:11,551 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:06:11,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 08:06:11,551 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:06:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:06:11,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1391355720, now seen corresponding path program 1 times [2021-11-17 08:06:11,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:06:11,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34836802] [2021-11-17 08:06:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:06:11,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:06:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:06:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:06:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:06:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:06:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:06:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:06:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:06:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:06:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:06:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:06:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:06:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:06:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 08:06:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 08:06:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:06:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:06:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:06:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:06:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:06:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:06:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:06:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 08:06:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:06:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 08:06:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 08:06:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2021-11-17 08:06:11,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:06:11,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34836802] [2021-11-17 08:06:11,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34836802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:06:11,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:06:11,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:06:11,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423678936] [2021-11-17 08:06:11,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:06:11,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:06:11,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:06:11,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:06:11,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:06:11,794 INFO L87 Difference]: Start difference. First operand 24543 states and 35801 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 08:06:12,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:06:14,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:06:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:06:19,138 INFO L93 Difference]: Finished difference Result 24665 states and 36011 transitions. [2021-11-17 08:06:19,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:06:19,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 209 [2021-11-17 08:06:19,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:06:19,247 INFO L225 Difference]: With dead ends: 24665 [2021-11-17 08:06:19,247 INFO L226 Difference]: Without dead ends: 24663 [2021-11-17 08:06:19,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:06:19,266 INFO L933 BasicCegarLoop]: 2394 mSDtfsCounter, 2460 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 1742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 4589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1742 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-17 08:06:19,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2711 Valid, 6501 Invalid, 4589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1742 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-17 08:06:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24663 states. [2021-11-17 08:06:20,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24663 to 24547. [2021-11-17 08:06:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24547 states, 14343 states have (on average 1.2493202258941645) internal successors, (17919), 14677 states have internal predecessors, (17919), 8890 states have call successors, (8890), 1312 states have call predecessors, (8890), 1311 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2021-11-17 08:06:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24547 states to 24547 states and 35804 transitions. [2021-11-17 08:06:20,767 INFO L78 Accepts]: Start accepts. Automaton has 24547 states and 35804 transitions. Word has length 209 [2021-11-17 08:06:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:06:20,768 INFO L470 AbstractCegarLoop]: Abstraction has 24547 states and 35804 transitions. [2021-11-17 08:06:20,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 08:06:20,768 INFO L276 IsEmpty]: Start isEmpty. Operand 24547 states and 35804 transitions. [2021-11-17 08:06:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-17 08:06:20,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:06:20,771 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:06:20,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 08:06:20,772 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:06:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:06:20,772 INFO L85 PathProgramCache]: Analyzing trace with hash -524467511, now seen corresponding path program 1 times [2021-11-17 08:06:20,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:06:20,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915761810] [2021-11-17 08:06:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:06:20,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:06:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:06:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:06:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:06:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:06:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:06:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:06:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:06:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:06:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:06:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:06:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:06:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:06:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:06:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:06:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:06:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 08:06:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:06:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:06:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:06:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:06:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:06:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:06:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:06:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 08:06:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2021-11-17 08:06:21,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:06:21,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915761810] [2021-11-17 08:06:21,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915761810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:06:21,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:06:21,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:06:21,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878385802] [2021-11-17 08:06:21,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:06:21,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:06:21,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:06:21,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:06:21,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:06:21,033 INFO L87 Difference]: Start difference. First operand 24547 states and 35804 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 08:06:23,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:06:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:06:28,558 INFO L93 Difference]: Finished difference Result 24669 states and 36014 transitions. [2021-11-17 08:06:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:06:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 194 [2021-11-17 08:06:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:06:28,653 INFO L225 Difference]: With dead ends: 24669 [2021-11-17 08:06:28,654 INFO L226 Difference]: Without dead ends: 24665 [2021-11-17 08:06:28,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:06:28,670 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2471 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2846 mSolverCounterSat, 1741 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 4588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1741 IncrementalHoareTripleChecker+Valid, 2846 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:06:28,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2725 Valid, 6497 Invalid, 4588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1741 Valid, 2846 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-17 08:06:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24665 states. [2021-11-17 08:06:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24665 to 24549. [2021-11-17 08:06:29,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24549 states, 14345 states have (on average 1.249215754618334) internal successors, (17920), 14678 states have internal predecessors, (17920), 8890 states have call successors, (8890), 1313 states have call predecessors, (8890), 1311 states have return successors, (8995), 8689 states have call predecessors, (8995), 8887 states have call successors, (8995) [2021-11-17 08:06:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24549 states to 24549 states and 35805 transitions. [2021-11-17 08:06:29,979 INFO L78 Accepts]: Start accepts. Automaton has 24549 states and 35805 transitions. Word has length 194 [2021-11-17 08:06:29,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:06:29,980 INFO L470 AbstractCegarLoop]: Abstraction has 24549 states and 35805 transitions. [2021-11-17 08:06:29,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 08:06:29,980 INFO L276 IsEmpty]: Start isEmpty. Operand 24549 states and 35805 transitions. [2021-11-17 08:06:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-17 08:06:29,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:06:29,983 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:06:29,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 08:06:29,984 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:06:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:06:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -691352079, now seen corresponding path program 1 times [2021-11-17 08:06:29,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:06:29,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049269210] [2021-11-17 08:06:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:06:29,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:06:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:06:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:06:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:06:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:06:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:06:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:06:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:06:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:06:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 08:06:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 08:06:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 08:06:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:06:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 08:06:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:06:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 08:06:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 08:06:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:06:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:06:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 08:06:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:06:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 08:06:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 08:06:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 08:06:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 08:06:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:06:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-17 08:06:30,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:06:30,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049269210] [2021-11-17 08:06:30,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049269210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:06:30,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:06:30,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:06:30,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621664806] [2021-11-17 08:06:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:06:30,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:06:30,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:06:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:06:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:06:30,155 INFO L87 Difference]: Start difference. First operand 24549 states and 35805 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 08:06:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:06:35,895 INFO L93 Difference]: Finished difference Result 24665 states and 36010 transitions. [2021-11-17 08:06:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:06:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 199 [2021-11-17 08:06:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:06:36,006 INFO L225 Difference]: With dead ends: 24665 [2021-11-17 08:06:36,006 INFO L226 Difference]: Without dead ends: 24447 [2021-11-17 08:06:36,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:06:36,021 INFO L933 BasicCegarLoop]: 2390 mSDtfsCounter, 2465 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:06:36,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 6494 Invalid, 4582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1740 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-17 08:06:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24447 states. [2021-11-17 08:06:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24447 to 24331. [2021-11-17 08:06:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24331 states, 14197 states have (on average 1.248855391984222) internal successors, (17730), 14514 states have internal predecessors, (17730), 8837 states have call successors, (8837), 1295 states have call predecessors, (8837), 1295 states have return successors, (8945), 8653 states have call predecessors, (8945), 8837 states have call successors, (8945) [2021-11-17 08:06:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24331 states to 24331 states and 35512 transitions. [2021-11-17 08:06:37,433 INFO L78 Accepts]: Start accepts. Automaton has 24331 states and 35512 transitions. Word has length 199 [2021-11-17 08:06:37,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:06:37,434 INFO L470 AbstractCegarLoop]: Abstraction has 24331 states and 35512 transitions. [2021-11-17 08:06:37,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 08:06:37,434 INFO L276 IsEmpty]: Start isEmpty. Operand 24331 states and 35512 transitions. [2021-11-17 08:06:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-17 08:06:37,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:06:37,438 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:06:37,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 08:06:37,439 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:06:37,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:06:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1976695342, now seen corresponding path program 1 times [2021-11-17 08:06:37,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:06:37,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335498271] [2021-11-17 08:06:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:06:37,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:06:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:06:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:06:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:06:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:06:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:06:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:06:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:06:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:06:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:06:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:06:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:06:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:06:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 08:06:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:06:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:06:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:06:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:06:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:06:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 08:06:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 08:06:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-17 08:06:37,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:06:37,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335498271] [2021-11-17 08:06:37,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335498271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:06:37,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:06:37,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:06:37,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072453423] [2021-11-17 08:06:37,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:06:37,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:06:37,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:06:37,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:06:37,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:06:37,604 INFO L87 Difference]: Start difference. First operand 24331 states and 35512 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:06:39,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:06:41,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:06:55,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:06:55,272 INFO L93 Difference]: Finished difference Result 57770 states and 84503 transitions. [2021-11-17 08:06:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:06:55,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 219 [2021-11-17 08:06:55,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:06:55,532 INFO L225 Difference]: With dead ends: 57770 [2021-11-17 08:06:55,532 INFO L226 Difference]: Without dead ends: 33495 [2021-11-17 08:06:55,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:06:55,590 INFO L933 BasicCegarLoop]: 3810 mSDtfsCounter, 1846 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 3504 mSolverCounterSat, 1638 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 7397 SdHoareTripleChecker+Invalid, 5144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1638 IncrementalHoareTripleChecker+Valid, 3504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-17 08:06:55,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2329 Valid, 7397 Invalid, 5144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1638 Valid, 3504 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2021-11-17 08:06:55,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33495 states. [2021-11-17 08:06:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33495 to 33133. [2021-11-17 08:06:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33133 states, 19257 states have (on average 1.2488965051669523) internal successors, (24050), 19662 states have internal predecessors, (24050), 12099 states have call successors, (12099), 1775 states have call predecessors, (12099), 1775 states have return successors, (12207), 11873 states have call predecessors, (12207), 12099 states have call successors, (12207) [2021-11-17 08:06:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33133 states to 33133 states and 48356 transitions. [2021-11-17 08:06:57,640 INFO L78 Accepts]: Start accepts. Automaton has 33133 states and 48356 transitions. Word has length 219 [2021-11-17 08:06:57,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:06:57,640 INFO L470 AbstractCegarLoop]: Abstraction has 33133 states and 48356 transitions. [2021-11-17 08:06:57,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:06:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand 33133 states and 48356 transitions. [2021-11-17 08:06:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-17 08:06:57,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:06:57,645 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:06:57,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 08:06:57,645 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:06:57,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:06:57,646 INFO L85 PathProgramCache]: Analyzing trace with hash 745765382, now seen corresponding path program 1 times [2021-11-17 08:06:57,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:06:57,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174058203] [2021-11-17 08:06:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:06:57,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:06:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:06:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:06:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:06:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:06:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:06:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:06:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:06:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:06:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:06:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:06:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:06:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:06:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 08:06:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:06:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:06:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 08:06:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:06:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:06:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:06:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:06:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:06:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:06:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:06:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:06:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:06:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:06:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:06:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:06:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 08:06:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 08:06:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:06:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-17 08:06:57,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:06:57,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174058203] [2021-11-17 08:06:57,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174058203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:06:57,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:06:57,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:06:57,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967450038] [2021-11-17 08:06:57,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:06:57,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:06:57,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:06:57,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:06:57,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:06:57,847 INFO L87 Difference]: Start difference. First operand 33133 states and 48356 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 08:06:59,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:07:01,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:07:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:07:15,107 INFO L93 Difference]: Finished difference Result 75431 states and 110275 transitions. [2021-11-17 08:07:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:07:15,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2021-11-17 08:07:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:07:15,291 INFO L225 Difference]: With dead ends: 75431 [2021-11-17 08:07:15,292 INFO L226 Difference]: Without dead ends: 42311 [2021-11-17 08:07:15,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:07:15,410 INFO L933 BasicCegarLoop]: 3813 mSDtfsCounter, 1843 mSDsluCounter, 3612 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 1636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 7425 SdHoareTripleChecker+Invalid, 5126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1636 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:07:15,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2326 Valid, 7425 Invalid, 5126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1636 Valid, 3490 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2021-11-17 08:07:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42311 states. [2021-11-17 08:07:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42311 to 41857. [2021-11-17 08:07:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41857 states, 24246 states have (on average 1.249195743627815) internal successors, (30288), 24739 states have internal predecessors, (30288), 15358 states have call successors, (15358), 2251 states have call predecessors, (15358), 2251 states have return successors, (15466), 15090 states have call predecessors, (15466), 15358 states have call successors, (15466) [2021-11-17 08:07:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41857 states to 41857 states and 61112 transitions. [2021-11-17 08:07:18,225 INFO L78 Accepts]: Start accepts. Automaton has 41857 states and 61112 transitions. Word has length 293 [2021-11-17 08:07:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:07:18,226 INFO L470 AbstractCegarLoop]: Abstraction has 41857 states and 61112 transitions. [2021-11-17 08:07:18,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 08:07:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 41857 states and 61112 transitions. [2021-11-17 08:07:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-17 08:07:18,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:07:18,233 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:07:18,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 08:07:18,233 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:07:18,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:07:18,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1160637884, now seen corresponding path program 1 times [2021-11-17 08:07:18,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:07:18,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232231126] [2021-11-17 08:07:18,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:07:18,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:07:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:07:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:07:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:07:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:07:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:07:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:07:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:07:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:07:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:07:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:07:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:07:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:07:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:07:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 08:07:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:07:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:07:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 08:07:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:07:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:07:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:07:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:07:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:07:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:07:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:07:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:07:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:07:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:07:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:07:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 08:07:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 08:07:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:18,550 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-17 08:07:18,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:07:18,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232231126] [2021-11-17 08:07:18,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232231126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:07:18,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:07:18,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:07:18,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803916024] [2021-11-17 08:07:18,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:07:18,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:07:18,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:07:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:07:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:07:18,552 INFO L87 Difference]: Start difference. First operand 41857 states and 61112 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 08:07:20,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:07:22,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:07:26,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:07:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:07:38,263 INFO L93 Difference]: Finished difference Result 94220 states and 137535 transitions. [2021-11-17 08:07:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:07:38,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2021-11-17 08:07:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:07:38,551 INFO L225 Difference]: With dead ends: 94220 [2021-11-17 08:07:38,552 INFO L226 Difference]: Without dead ends: 52419 [2021-11-17 08:07:38,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:07:38,720 INFO L933 BasicCegarLoop]: 3934 mSDtfsCounter, 2268 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 3550 mSolverCounterSat, 1678 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 7286 SdHoareTripleChecker+Invalid, 5230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 3550 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-11-17 08:07:38,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 7286 Invalid, 5230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1678 Valid, 3550 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2021-11-17 08:07:38,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52419 states. [2021-11-17 08:07:41,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52419 to 51857. [2021-11-17 08:07:42,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51857 states, 30054 states have (on average 1.2473547614294271) internal successors, (37488), 30651 states have internal predecessors, (37488), 18944 states have call successors, (18944), 2861 states have call predecessors, (18944), 2857 states have return successors, (19052), 18618 states have call predecessors, (19052), 18944 states have call successors, (19052) [2021-11-17 08:07:42,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51857 states to 51857 states and 75484 transitions. [2021-11-17 08:07:42,306 INFO L78 Accepts]: Start accepts. Automaton has 51857 states and 75484 transitions. Word has length 293 [2021-11-17 08:07:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:07:42,307 INFO L470 AbstractCegarLoop]: Abstraction has 51857 states and 75484 transitions. [2021-11-17 08:07:42,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 08:07:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 51857 states and 75484 transitions. [2021-11-17 08:07:42,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-17 08:07:42,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:07:42,313 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:07:42,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 08:07:42,314 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:07:42,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:07:42,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1476697059, now seen corresponding path program 1 times [2021-11-17 08:07:42,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:07:42,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38578327] [2021-11-17 08:07:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:07:42,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:07:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:07:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:07:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:07:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:07:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:07:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:07:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:07:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:07:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:07:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:07:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:07:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:07:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:07:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 08:07:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:07:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:07:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 08:07:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:07:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:07:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:07:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:07:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 08:07:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:07:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:07:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 08:07:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 08:07:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 08:07:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:07:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:07:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:07:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:07:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:07:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:07:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 08:07:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 08:07:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:07:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-17 08:07:42,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:07:42,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38578327] [2021-11-17 08:07:42,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38578327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:07:42,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:07:42,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:07:42,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790740917] [2021-11-17 08:07:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:07:42,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:07:42,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:07:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:07:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:07:42,554 INFO L87 Difference]: Start difference. First operand 51857 states and 75484 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 08:07:56,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:07:56,453 INFO L93 Difference]: Finished difference Result 113074 states and 164851 transitions. [2021-11-17 08:07:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:07:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 348 [2021-11-17 08:07:56,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:07:56,746 INFO L225 Difference]: With dead ends: 113074 [2021-11-17 08:07:56,746 INFO L226 Difference]: Without dead ends: 61273 [2021-11-17 08:07:56,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:07:56,915 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 2430 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 2797 mSolverCounterSat, 2856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 6385 SdHoareTripleChecker+Invalid, 5653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2856 IncrementalHoareTripleChecker+Valid, 2797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:07:56,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 6385 Invalid, 5653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2856 Valid, 2797 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2021-11-17 08:07:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61273 states. [2021-11-17 08:08:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61273 to 60619. [2021-11-17 08:08:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60619 states, 35082 states have (on average 1.2478193945613134) internal successors, (43776), 35767 states have internal predecessors, (43776), 22206 states have call successors, (22206), 3333 states have call predecessors, (22206), 3329 states have return successors, (22314), 21838 states have call predecessors, (22314), 22206 states have call successors, (22314) [2021-11-17 08:08:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60619 states to 60619 states and 88296 transitions. [2021-11-17 08:08:01,289 INFO L78 Accepts]: Start accepts. Automaton has 60619 states and 88296 transitions. Word has length 348 [2021-11-17 08:08:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:08:01,289 INFO L470 AbstractCegarLoop]: Abstraction has 60619 states and 88296 transitions. [2021-11-17 08:08:01,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 08:08:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 60619 states and 88296 transitions. [2021-11-17 08:08:01,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-11-17 08:08:01,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:08:01,295 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:08:01,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 08:08:01,296 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:08:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:08:01,296 INFO L85 PathProgramCache]: Analyzing trace with hash 639509656, now seen corresponding path program 1 times [2021-11-17 08:08:01,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:08:01,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211715455] [2021-11-17 08:08:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:08:01,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:08:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:08:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:08:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:08:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:08:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:08:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:08:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:08:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:08:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:08:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:08:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:08:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:08:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:08:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 08:08:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:08:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 08:08:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:08:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:08:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:08:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 08:08:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:08:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 08:08:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 08:08:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 08:08:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:08:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:08:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:08:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:08:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:08:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 08:08:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 08:08:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-17 08:08:01,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:08:01,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211715455] [2021-11-17 08:08:01,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211715455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:08:01,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:08:01,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:08:01,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230948681] [2021-11-17 08:08:01,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:08:01,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:08:01,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:08:01,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:08:01,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:08:01,527 INFO L87 Difference]: Start difference. First operand 60619 states and 88296 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 08:08:03,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:08:05,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:08:08,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:08:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:08:20,738 INFO L93 Difference]: Finished difference Result 130786 states and 190743 transitions. [2021-11-17 08:08:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:08:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 349 [2021-11-17 08:08:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:08:21,050 INFO L225 Difference]: With dead ends: 130786 [2021-11-17 08:08:21,050 INFO L226 Difference]: Without dead ends: 70223 [2021-11-17 08:08:21,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:08:21,251 INFO L933 BasicCegarLoop]: 3770 mSDtfsCounter, 1864 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 1666 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 7357 SdHoareTripleChecker+Invalid, 5158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1666 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-17 08:08:21,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2348 Valid, 7357 Invalid, 5158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1666 Valid, 3490 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2021-11-17 08:08:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70223 states. [2021-11-17 08:08:25,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70223 to 69477. [2021-11-17 08:08:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69477 states, 40190 states have (on average 1.2480716596168202) internal successors, (50160), 40963 states have internal predecessors, (50160), 25476 states have call successors, (25476), 3813 states have call predecessors, (25476), 3809 states have return successors, (25584), 25066 states have call predecessors, (25584), 25476 states have call successors, (25584) [2021-11-17 08:08:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69477 states to 69477 states and 101220 transitions. [2021-11-17 08:08:25,809 INFO L78 Accepts]: Start accepts. Automaton has 69477 states and 101220 transitions. Word has length 349 [2021-11-17 08:08:25,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:08:25,819 INFO L470 AbstractCegarLoop]: Abstraction has 69477 states and 101220 transitions. [2021-11-17 08:08:25,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 08:08:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 69477 states and 101220 transitions. [2021-11-17 08:08:25,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-11-17 08:08:25,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:08:25,826 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:08:25,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 08:08:25,826 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:08:25,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:08:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash 145631217, now seen corresponding path program 1 times [2021-11-17 08:08:25,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:08:25,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422443832] [2021-11-17 08:08:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:08:25,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:08:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:08:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:08:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:08:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:08:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:08:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:08:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:08:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:08:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:08:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:08:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:08:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:08:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:08:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 08:08:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:08:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 08:08:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:08:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:08:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:08:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 08:08:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:08:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 08:08:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 08:08:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 08:08:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 08:08:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 08:08:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 08:08:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:08:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:08:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:08:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:08:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:08:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 08:08:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 08:08:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-17 08:08:26,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:08:26,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422443832] [2021-11-17 08:08:26,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422443832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:08:26,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:08:26,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 08:08:26,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181120510] [2021-11-17 08:08:26,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:08:26,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 08:08:26,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:08:26,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 08:08:26,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:08:26,109 INFO L87 Difference]: Start difference. First operand 69477 states and 101220 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 4 states have internal predecessors, (159), 3 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 08:08:30,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:08:32,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:08:48,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:08:48,864 INFO L93 Difference]: Finished difference Result 149518 states and 217918 transitions. [2021-11-17 08:08:48,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 08:08:48,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 4 states have internal predecessors, (159), 3 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 389 [2021-11-17 08:08:48,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:08:49,438 INFO L225 Difference]: With dead ends: 149518 [2021-11-17 08:08:49,438 INFO L226 Difference]: Without dead ends: 80097 [2021-11-17 08:08:49,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:08:49,693 INFO L933 BasicCegarLoop]: 3857 mSDtfsCounter, 2712 mSDsluCounter, 8011 mSDsCounter, 0 mSdLazyCounter, 6910 mSolverCounterSat, 2956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3194 SdHoareTripleChecker+Valid, 11868 SdHoareTripleChecker+Invalid, 9866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2956 IncrementalHoareTripleChecker+Valid, 6910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:08:49,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3194 Valid, 11868 Invalid, 9866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2956 Valid, 6910 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2021-11-17 08:08:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80097 states. [2021-11-17 08:08:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80097 to 79193. [2021-11-17 08:08:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79193 states, 45822 states have (on average 1.248745144253852) internal successors, (57220), 46755 states have internal predecessors, (57220), 28982 states have call successors, (28982), 4387 states have call predecessors, (28982), 4387 states have return successors, (29106), 28478 states have call predecessors, (29106), 28982 states have call successors, (29106) [2021-11-17 08:08:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79193 states to 79193 states and 115308 transitions. [2021-11-17 08:08:54,820 INFO L78 Accepts]: Start accepts. Automaton has 79193 states and 115308 transitions. Word has length 389 [2021-11-17 08:08:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:08:54,821 INFO L470 AbstractCegarLoop]: Abstraction has 79193 states and 115308 transitions. [2021-11-17 08:08:54,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 4 states have internal predecessors, (159), 3 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 08:08:54,821 INFO L276 IsEmpty]: Start isEmpty. Operand 79193 states and 115308 transitions. [2021-11-17 08:08:54,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-11-17 08:08:54,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:08:54,830 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:08:54,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 08:08:54,830 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:08:54,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:08:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1721471528, now seen corresponding path program 1 times [2021-11-17 08:08:54,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:08:54,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390163481] [2021-11-17 08:08:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:08:54,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:08:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:08:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:08:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:08:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:08:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:08:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 08:08:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 08:08:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 08:08:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 08:08:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:08:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 08:08:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 08:08:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 08:08:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 08:08:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:08:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 08:08:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:08:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 08:08:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:08:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 08:08:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 08:08:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 08:08:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 08:08:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 08:08:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 08:08:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:08:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 08:08:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 08:08:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 08:08:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:08:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:08:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 08:08:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 08:08:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 08:08:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 08:08:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 08:08:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:08:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-17 08:08:55,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:08:55,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390163481] [2021-11-17 08:08:55,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390163481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:08:55,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:08:55,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 08:08:55,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710196829] [2021-11-17 08:08:55,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:08:55,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 08:08:55,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:08:55,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 08:08:55,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:08:55,402 INFO L87 Difference]: Start difference. First operand 79193 states and 115308 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 4 states have internal predecessors, (161), 3 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 08:08:59,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []