./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:51:53,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:51:53,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:51:53,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:51:53,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:51:53,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:51:53,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:51:53,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:51:53,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:51:53,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:51:53,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:51:53,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:51:53,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:51:53,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:51:53,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:51:53,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:51:53,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:51:53,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:51:53,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:51:53,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:51:53,320 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:51:53,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:51:53,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:51:53,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:51:53,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:51:53,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:51:53,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:51:53,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:51:53,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:51:53,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:51:53,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:51:53,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:51:53,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:51:53,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:51:53,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:51:53,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:51:53,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:51:53,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:51:53,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:51:53,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:51:53,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:51:53,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:51:53,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:51:53,376 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:51:53,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:51:53,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:51:53,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:51:53,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:51:53,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:51:53,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:51:53,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:51:53,379 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:51:53,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:51:53,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:51:53,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:51:53,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:51:53,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:51:53,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:51:53,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:51:53,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:51:53,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:51:53,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:51:53,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:51:53,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:51:53,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:51:53,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:51:53,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:51:53,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:51:53,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:51:53,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:51:53,384 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:51:53,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:51:53,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:51:53,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-21 13:51:53,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:51:53,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:51:53,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:51:53,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:51:53,723 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:51:53,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-21 13:51:53,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3c0d2f7/6ec06bab31ea4ff586c66bc94bc9cbdd/FLAG94d920328 [2022-07-21 13:51:54,556 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:51:54,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-21 13:51:54,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3c0d2f7/6ec06bab31ea4ff586c66bc94bc9cbdd/FLAG94d920328 [2022-07-21 13:51:54,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3c0d2f7/6ec06bab31ea4ff586c66bc94bc9cbdd [2022-07-21 13:51:54,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:51:54,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:51:54,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:51:54,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:51:54,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:51:54,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:54" (1/1) ... [2022-07-21 13:51:54,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0d6ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:54, skipping insertion in model container [2022-07-21 13:51:54,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:54" (1/1) ... [2022-07-21 13:51:54,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:51:54,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:51:57,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-21 13:51:57,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-21 13:51:57,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-21 13:51:57,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-21 13:51:57,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:51:57,782 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:51:57,956 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 13:51:57,962 INFO L158 Benchmark]: Toolchain (without parser) took 3156.73ms. Allocated memory was 54.5MB in the beginning and 136.3MB in the end (delta: 81.8MB). Free memory was 25.6MB in the beginning and 68.3MB in the end (delta: -42.7MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-07-21 13:51:57,963 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 13:51:57,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3152.96ms. Allocated memory was 54.5MB in the beginning and 136.3MB in the end (delta: 81.8MB). Free memory was 25.5MB in the beginning and 68.3MB in the end (delta: -42.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-07-21 13:51:57,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3152.96ms. Allocated memory was 54.5MB in the beginning and 136.3MB in the end (delta: 81.8MB). Free memory was 25.5MB in the beginning and 68.3MB in the end (delta: -42.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:51:59,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:51:59,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:51:59,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:51:59,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:51:59,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:51:59,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:51:59,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:51:59,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:51:59,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:51:59,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:51:59,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:51:59,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:51:59,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:51:59,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:51:59,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:51:59,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:51:59,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:51:59,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:51:59,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:51:59,734 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:51:59,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:51:59,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:51:59,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:51:59,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:51:59,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:51:59,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:51:59,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:51:59,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:51:59,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:51:59,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:51:59,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:51:59,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:51:59,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:51:59,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:51:59,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:51:59,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:51:59,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:51:59,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:51:59,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:51:59,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:51:59,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:51:59,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 13:51:59,793 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:51:59,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:51:59,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:51:59,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:51:59,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:51:59,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:51:59,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:51:59,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:51:59,796 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:51:59,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:51:59,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:51:59,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:51:59,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:51:59,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:51:59,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 13:51:59,798 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 13:51:59,798 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 13:51:59,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:51:59,799 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:51:59,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:51:59,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:51:59,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:51:59,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:51:59,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:51:59,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:51:59,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:51:59,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:51:59,800 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 13:51:59,801 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 13:51:59,801 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:51:59,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:51:59,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:51:59,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 13:51:59,802 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-21 13:52:00,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:52:00,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:52:00,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:52:00,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:52:00,119 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:52:00,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-21 13:52:00,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/124eea9da/295815c842364fc48c4b5e4f5b343b6c/FLAG7564d6ac4 [2022-07-21 13:52:00,972 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:52:00,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-21 13:52:01,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/124eea9da/295815c842364fc48c4b5e4f5b343b6c/FLAG7564d6ac4 [2022-07-21 13:52:01,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/124eea9da/295815c842364fc48c4b5e4f5b343b6c [2022-07-21 13:52:01,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:52:01,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:52:01,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:52:01,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:52:01,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:52:01,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:01" (1/1) ... [2022-07-21 13:52:01,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763bc111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:01, skipping insertion in model container [2022-07-21 13:52:01,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:01" (1/1) ... [2022-07-21 13:52:01,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:52:01,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:52:03,098 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-21 13:52:03,117 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-21 13:52:03,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-21 13:52:03,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-21 13:52:03,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-21 13:52:03,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-21 13:52:03,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:52:03,957 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 13:52:04,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:52:04,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-21 13:52:04,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-21 13:52:04,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-21 13:52:04,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-21 13:52:04,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:52:04,372 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:52:04,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-21 13:52:04,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-21 13:52:04,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-21 13:52:04,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-21 13:52:04,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:52:04,932 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:52:04,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04 WrapperNode [2022-07-21 13:52:04,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:52:04,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:52:04,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:52:04,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:52:04,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,218 INFO L137 Inliner]: procedures = 587, calls = 2923, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6318 [2022-07-21 13:52:05,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:52:05,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:52:05,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:52:05,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:52:05,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:52:05,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:52:05,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:52:05,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:52:05,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (1/1) ... [2022-07-21 13:52:05,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:52:05,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:52:05,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 13:52:05,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 13:52:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-21 13:52:05,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-21 13:52:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-21 13:52:05,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-21 13:52:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:52:05,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:52:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:52:05,698 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:52:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-21 13:52:05,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-21 13:52:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-21 13:52:05,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-21 13:52:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-07-21 13:52:05,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-07-21 13:52:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:52:05,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:52:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 13:52:05,700 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 13:52:05,700 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-21 13:52:05,700 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-21 13:52:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:52:05,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:52:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-21 13:52:05,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-21 13:52:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-21 13:52:05,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-21 13:52:05,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 13:52:05,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 13:52:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 13:52:05,702 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 13:52:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-21 13:52:05,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-21 13:52:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-21 13:52:05,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-21 13:52:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-21 13:52:05,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-21 13:52:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 13:52:05,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 13:52:05,704 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 13:52:05,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 13:52:05,705 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-21 13:52:05,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-21 13:52:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-21 13:52:05,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-21 13:52:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-21 13:52:05,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-21 13:52:05,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:52:05,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:52:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-21 13:52:05,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-21 13:52:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 13:52:05,707 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 13:52:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 13:52:05,707 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 13:52:05,708 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-21 13:52:05,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-21 13:52:05,708 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:52:05,708 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:52:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:52:05,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:52:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 13:52:05,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 13:52:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:52:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:52:05,710 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:52:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 13:52:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 13:52:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 13:52:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-21 13:52:05,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-21 13:52:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 13:52:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-21 13:52:05,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-21 13:52:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:52:05,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:52:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-21 13:52:05,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-21 13:52:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:52:05,713 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:52:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 13:52:05,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 13:52:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:52:05,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:52:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-21 13:52:05,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-21 13:52:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 13:52:05,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 13:52:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:52:05,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:52:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:52:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:52:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 13:52:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 13:52:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:52:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:52:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:52:05,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:52:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-21 13:52:05,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-21 13:52:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 13:52:05,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 13:52:05,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-21 13:52:05,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-21 13:52:05,720 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-21 13:52:05,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-21 13:52:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 13:52:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 13:52:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-21 13:52:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-21 13:52:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-21 13:52:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-21 13:52:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:52:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:52:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-21 13:52:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-21 13:52:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:52:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-21 13:52:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-21 13:52:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:52:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:52:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 13:52:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 13:52:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-21 13:52:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-21 13:52:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-21 13:52:05,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-21 13:52:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-21 13:52:05,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-21 13:52:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:52:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-21 13:52:05,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-21 13:52:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:52:05,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:52:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:52:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:52:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:52:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-21 13:52:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-21 13:52:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 13:52:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 13:52:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:52:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:52:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 13:52:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-21 13:52:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-21 13:52:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 13:52:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 13:52:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-21 13:52:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-21 13:52:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-21 13:52:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-21 13:52:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 13:52:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 13:52:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 13:52:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 13:52:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 13:52:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 13:52:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:52:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:52:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-21 13:52:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-21 13:52:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:52:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:52:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-21 13:52:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-21 13:52:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-21 13:52:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-21 13:52:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-21 13:52:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-21 13:52:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:52:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:52:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 13:52:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 13:52:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 13:52:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:52:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:52:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-21 13:52:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-21 13:52:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 13:52:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 13:52:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 13:52:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 13:52:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 13:52:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-21 13:52:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-21 13:52:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:52:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 13:52:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:52:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:52:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:52:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:52:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:52:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 13:52:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 13:52:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-21 13:52:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-21 13:52:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-21 13:52:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-21 13:52:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 13:52:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 13:52:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 13:52:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 13:52:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-21 13:52:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-21 13:52:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:52:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:52:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-21 13:52:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-21 13:52:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:52:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:52:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-21 13:52:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-21 13:52:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:52:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:52:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 13:52:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 13:52:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 13:52:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 13:52:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-07-21 13:52:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-07-21 13:52:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:52:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:52:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 13:52:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 13:52:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:52:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 13:52:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 13:52:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:52:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 13:52:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 13:52:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 13:52:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 13:52:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:52:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 13:52:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 13:52:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:52:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:52:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:52:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:52:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 13:52:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 13:52:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-21 13:52:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-21 13:52:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 13:52:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 13:52:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 13:52:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 13:52:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-21 13:52:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-21 13:52:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-07-21 13:52:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-07-21 13:52:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:52:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:52:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-21 13:52:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-21 13:52:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-21 13:52:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-21 13:52:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-21 13:52:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-21 13:52:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 13:52:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 13:52:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 13:52:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 13:52:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-21 13:52:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-21 13:52:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-21 13:52:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-21 13:52:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 13:52:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 13:52:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-21 13:52:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-21 13:52:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 13:52:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 13:52:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 13:52:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 13:52:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:52:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:52:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-21 13:52:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-21 13:52:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-21 13:52:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-21 13:52:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 13:52:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 13:52:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-21 13:52:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-21 13:52:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-21 13:52:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-21 13:52:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-21 13:52:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-21 13:52:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-21 13:52:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-21 13:52:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:52:05,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:52:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-21 13:52:05,757 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-21 13:52:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-21 13:52:05,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-21 13:52:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 13:52:05,758 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 13:52:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-21 13:52:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-21 13:52:05,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-21 13:52:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:52:05,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:52:06,659 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:52:06,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:52:07,069 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:52:46,798 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:52:46,948 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:52:46,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:52:46,966 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 13:52:46,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:46 BoogieIcfgContainer [2022-07-21 13:52:46,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:52:46,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:52:46,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:52:46,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:52:46,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:01" (1/3) ... [2022-07-21 13:52:46,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73278aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:46, skipping insertion in model container [2022-07-21 13:52:46,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:04" (2/3) ... [2022-07-21 13:52:46,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73278aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:46, skipping insertion in model container [2022-07-21 13:52:46,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:46" (3/3) ... [2022-07-21 13:52:46,976 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-21 13:52:46,988 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:52:46,988 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:52:47,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:52:47,075 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29abae1f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f981cd6 [2022-07-21 13:52:47,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:52:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2022-07-21 13:52:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 13:52:47,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:47,106 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:47,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:47,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:47,112 INFO L85 PathProgramCache]: Analyzing trace with hash 404930848, now seen corresponding path program 1 times [2022-07-21 13:52:47,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:52:47,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648383536] [2022-07-21 13:52:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:47,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:52:47,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:52:47,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:52:47,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 13:52:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:48,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:52:48,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:52:48,563 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 13:52:48,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:52:48,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:52:48,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648383536] [2022-07-21 13:52:48,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648383536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:48,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:48,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:52:48,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819333002] [2022-07-21 13:52:48,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:48,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:52:48,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:52:48,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:52:48,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:48,610 INFO L87 Difference]: Start difference. First operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 13:52:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:49,199 INFO L93 Difference]: Finished difference Result 7383 states and 10536 transitions. [2022-07-21 13:52:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:52:49,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-07-21 13:52:49,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:49,256 INFO L225 Difference]: With dead ends: 7383 [2022-07-21 13:52:49,259 INFO L226 Difference]: Without dead ends: 4894 [2022-07-21 13:52:49,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:49,293 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 3386 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3386 SdHoareTripleChecker+Valid, 7619 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:49,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3386 Valid, 7619 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:52:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2022-07-21 13:52:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4890. [2022-07-21 13:52:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4890 states, 3236 states have (on average 1.2533992583436342) internal successors, (4056), 3336 states have internal predecessors, (4056), 1384 states have call successors, (1384), 268 states have call predecessors, (1384), 267 states have return successors, (1381), 1351 states have call predecessors, (1381), 1381 states have call successors, (1381) [2022-07-21 13:52:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6821 transitions. [2022-07-21 13:52:49,648 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6821 transitions. Word has length 112 [2022-07-21 13:52:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:49,649 INFO L495 AbstractCegarLoop]: Abstraction has 4890 states and 6821 transitions. [2022-07-21 13:52:49,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 13:52:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6821 transitions. [2022-07-21 13:52:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 13:52:49,655 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:49,655 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:49,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 13:52:49,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:52:49,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:49,876 INFO L85 PathProgramCache]: Analyzing trace with hash -376960966, now seen corresponding path program 1 times [2022-07-21 13:52:49,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:52:49,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455912444] [2022-07-21 13:52:49,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:49,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:52:49,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:52:49,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:52:49,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 13:52:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:51,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:52:51,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:52:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 13:52:51,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:52:51,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:52:51,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455912444] [2022-07-21 13:52:51,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455912444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:51,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:51,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:52:51,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323919005] [2022-07-21 13:52:51,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:51,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:52:51,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:52:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:52:51,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:51,505 INFO L87 Difference]: Start difference. First operand 4890 states and 6821 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 13:52:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:52,245 INFO L93 Difference]: Finished difference Result 9061 states and 12519 transitions. [2022-07-21 13:52:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:52:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-07-21 13:52:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:52,284 INFO L225 Difference]: With dead ends: 9061 [2022-07-21 13:52:52,285 INFO L226 Difference]: Without dead ends: 4192 [2022-07-21 13:52:52,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:52,314 INFO L413 NwaCegarLoop]: 3749 mSDtfsCounter, 1143 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:52,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 7156 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 13:52:52,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2022-07-21 13:52:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4166. [2022-07-21 13:52:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4166 states, 2791 states have (on average 1.2393407380867072) internal successors, (3459), 2858 states have internal predecessors, (3459), 1102 states have call successors, (1102), 271 states have call predecessors, (1102), 270 states have return successors, (1099), 1081 states have call predecessors, (1099), 1099 states have call successors, (1099) [2022-07-21 13:52:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 5660 transitions. [2022-07-21 13:52:52,489 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 5660 transitions. Word has length 117 [2022-07-21 13:52:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:52,490 INFO L495 AbstractCegarLoop]: Abstraction has 4166 states and 5660 transitions. [2022-07-21 13:52:52,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 13:52:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 5660 transitions. [2022-07-21 13:52:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 13:52:52,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:52,497 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:52,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 13:52:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:52:52,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:52,712 INFO L85 PathProgramCache]: Analyzing trace with hash 656615772, now seen corresponding path program 1 times [2022-07-21 13:52:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:52:52,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768734829] [2022-07-21 13:52:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:52,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:52:52,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:52:52,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:52:52,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 13:52:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:53,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:52:53,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:52:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 13:52:54,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:52:54,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:52:54,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768734829] [2022-07-21 13:52:54,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768734829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:54,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:54,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:52:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624092188] [2022-07-21 13:52:54,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:52:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:52:54,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:52:54,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:54,082 INFO L87 Difference]: Start difference. First operand 4166 states and 5660 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:52:54,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:54,525 INFO L93 Difference]: Finished difference Result 11244 states and 15314 transitions. [2022-07-21 13:52:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:52:54,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-07-21 13:52:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:54,570 INFO L225 Difference]: With dead ends: 11244 [2022-07-21 13:52:54,571 INFO L226 Difference]: Without dead ends: 7099 [2022-07-21 13:52:54,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:54,594 INFO L413 NwaCegarLoop]: 4457 mSDtfsCounter, 3339 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3339 SdHoareTripleChecker+Valid, 7724 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:54,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3339 Valid, 7724 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:52:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-07-21 13:52:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7065. [2022-07-21 13:52:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 4743 states have (on average 1.2426734134514021) internal successors, (5894), 4865 states have internal predecessors, (5894), 1859 states have call successors, (1859), 465 states have call predecessors, (1859), 460 states have return successors, (1875), 1811 states have call predecessors, (1875), 1856 states have call successors, (1875) [2022-07-21 13:52:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 9628 transitions. [2022-07-21 13:52:54,948 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 9628 transitions. Word has length 120 [2022-07-21 13:52:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:54,948 INFO L495 AbstractCegarLoop]: Abstraction has 7065 states and 9628 transitions. [2022-07-21 13:52:54,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:52:54,949 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 9628 transitions. [2022-07-21 13:52:54,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-21 13:52:54,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:54,952 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:52:54,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 13:52:55,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:52:55,172 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:52:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1149806852, now seen corresponding path program 1 times [2022-07-21 13:52:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:52:55,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925965243] [2022-07-21 13:52:55,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:55,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:52:55,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:52:55,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:52:55,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 13:52:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:56,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:52:56,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:52:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 13:52:56,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:52:56,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:52:56,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925965243] [2022-07-21 13:52:56,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925965243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:56,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:56,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:52:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429571487] [2022-07-21 13:52:56,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:56,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:52:56,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:52:56,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:52:56,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:56,327 INFO L87 Difference]: Start difference. First operand 7065 states and 9628 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 13:52:56,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:52:56,995 INFO L93 Difference]: Finished difference Result 17952 states and 24573 transitions. [2022-07-21 13:52:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:52:56,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2022-07-21 13:52:56,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:52:57,067 INFO L225 Difference]: With dead ends: 17952 [2022-07-21 13:52:57,067 INFO L226 Difference]: Without dead ends: 10908 [2022-07-21 13:52:57,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:52:57,107 INFO L413 NwaCegarLoop]: 4095 mSDtfsCounter, 2988 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:52:57,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 7483 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 13:52:57,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10908 states. [2022-07-21 13:52:57,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10908 to 10873. [2022-07-21 13:52:57,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10873 states, 7248 states have (on average 1.2425496688741722) internal successors, (9006), 7477 states have internal predecessors, (9006), 2931 states have call successors, (2931), 701 states have call predecessors, (2931), 691 states have return successors, (2968), 2832 states have call predecessors, (2968), 2928 states have call successors, (2968) [2022-07-21 13:52:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10873 states to 10873 states and 14905 transitions. [2022-07-21 13:52:57,616 INFO L78 Accepts]: Start accepts. Automaton has 10873 states and 14905 transitions. Word has length 135 [2022-07-21 13:52:57,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:52:57,617 INFO L495 AbstractCegarLoop]: Abstraction has 10873 states and 14905 transitions. [2022-07-21 13:52:57,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 13:52:57,618 INFO L276 IsEmpty]: Start isEmpty. Operand 10873 states and 14905 transitions. [2022-07-21 13:52:57,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-21 13:52:57,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:52:57,620 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:52:57,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 13:52:57,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:52:57,836 INFO L420 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)] === [2022-07-21 13:52:57,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:52:57,836 INFO L85 PathProgramCache]: Analyzing trace with hash -473532878, now seen corresponding path program 1 times [2022-07-21 13:52:57,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:52:57,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967173047] [2022-07-21 13:52:57,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:52:57,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:52:57,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:52:57,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:52:57,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 13:52:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:52:58,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:52:58,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:52:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-21 13:52:59,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:52:59,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:52:59,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967173047] [2022-07-21 13:52:59,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967173047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:52:59,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:52:59,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:52:59,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250058880] [2022-07-21 13:52:59,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:52:59,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:52:59,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:52:59,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:52:59,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:52:59,934 INFO L87 Difference]: Start difference. First operand 10873 states and 14905 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 13:53:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:00,329 INFO L93 Difference]: Finished difference Result 10879 states and 14910 transitions. [2022-07-21 13:53:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:53:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 164 [2022-07-21 13:53:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:00,386 INFO L225 Difference]: With dead ends: 10879 [2022-07-21 13:53:00,387 INFO L226 Difference]: Without dead ends: 10877 [2022-07-21 13:53:00,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:00,397 INFO L413 NwaCegarLoop]: 3466 mSDtfsCounter, 3395 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 10385 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:00,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 10385 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:00,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-07-21 13:53:00,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 10877. [2022-07-21 13:53:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10877 states, 7251 states have (on average 1.24244931733554) internal successors, (9009), 7480 states have internal predecessors, (9009), 2931 states have call successors, (2931), 702 states have call predecessors, (2931), 692 states have return successors, (2968), 2832 states have call predecessors, (2968), 2928 states have call successors, (2968) [2022-07-21 13:53:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 14908 transitions. [2022-07-21 13:53:00,879 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 14908 transitions. Word has length 164 [2022-07-21 13:53:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:00,880 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 14908 transitions. [2022-07-21 13:53:00,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-21 13:53:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 14908 transitions. [2022-07-21 13:53:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-21 13:53:00,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:00,884 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:00,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:01,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:01,108 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:01,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1390037152, now seen corresponding path program 1 times [2022-07-21 13:53:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:01,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173353473] [2022-07-21 13:53:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:01,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:01,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:01,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:01,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 13:53:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:02,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:53:02,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-21 13:53:03,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-21 13:53:03,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:03,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173353473] [2022-07-21 13:53:03,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173353473] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:53:03,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:53:03,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:53:03,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924421672] [2022-07-21 13:53:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:03,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:03,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:03,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:03,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:03,891 INFO L87 Difference]: Start difference. First operand 10877 states and 14908 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:53:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:04,371 INFO L93 Difference]: Finished difference Result 11240 states and 15288 transitions. [2022-07-21 13:53:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:53:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 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 169 [2022-07-21 13:53:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:04,432 INFO L225 Difference]: With dead ends: 11240 [2022-07-21 13:53:04,433 INFO L226 Difference]: Without dead ends: 11238 [2022-07-21 13:53:04,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:04,444 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 3376 mSDsluCounter, 7134 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 10638 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:04,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3387 Valid, 10638 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:04,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-21 13:53:04,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11234. [2022-07-21 13:53:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11234 states, 7461 states have (on average 1.237769735960327) internal successors, (9235), 7698 states have internal predecessors, (9235), 3006 states have call successors, (3006), 774 states have call predecessors, (3006), 764 states have return successors, (3043), 2907 states have call predecessors, (3043), 3003 states have call successors, (3043) [2022-07-21 13:53:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11234 states to 11234 states and 15284 transitions. [2022-07-21 13:53:04,935 INFO L78 Accepts]: Start accepts. Automaton has 11234 states and 15284 transitions. Word has length 169 [2022-07-21 13:53:04,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:04,935 INFO L495 AbstractCegarLoop]: Abstraction has 11234 states and 15284 transitions. [2022-07-21 13:53:04,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:53:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11234 states and 15284 transitions. [2022-07-21 13:53:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-21 13:53:04,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:04,938 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:04,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:05,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:05,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:05,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1831592626, now seen corresponding path program 1 times [2022-07-21 13:53:05,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:05,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761901531] [2022-07-21 13:53:05,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:05,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:05,162 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:05,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 13:53:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:06,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:53:06,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-21 13:53:07,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-21 13:53:07,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:07,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761901531] [2022-07-21 13:53:07,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761901531] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:53:07,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:53:07,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:53:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073901031] [2022-07-21 13:53:07,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:07,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:07,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:07,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:07,768 INFO L87 Difference]: Start difference. First operand 11234 states and 15284 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 13:53:08,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:08,298 INFO L93 Difference]: Finished difference Result 11240 states and 15289 transitions. [2022-07-21 13:53:08,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:53:08,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 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 174 [2022-07-21 13:53:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:08,350 INFO L225 Difference]: With dead ends: 11240 [2022-07-21 13:53:08,350 INFO L226 Difference]: Without dead ends: 11238 [2022-07-21 13:53:08,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:08,360 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:08,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-21 13:53:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11238. [2022-07-21 13:53:08,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11238 states, 7464 states have (on average 1.237674169346195) internal successors, (9238), 7701 states have internal predecessors, (9238), 3006 states have call successors, (3006), 775 states have call predecessors, (3006), 765 states have return successors, (3043), 2907 states have call predecessors, (3043), 3003 states have call successors, (3043) [2022-07-21 13:53:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11238 states to 11238 states and 15287 transitions. [2022-07-21 13:53:08,856 INFO L78 Accepts]: Start accepts. Automaton has 11238 states and 15287 transitions. Word has length 174 [2022-07-21 13:53:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:08,858 INFO L495 AbstractCegarLoop]: Abstraction has 11238 states and 15287 transitions. [2022-07-21 13:53:08,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 13:53:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand 11238 states and 15287 transitions. [2022-07-21 13:53:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-21 13:53:08,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:08,862 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:08,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:09,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:09,076 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:09,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:09,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1207099844, now seen corresponding path program 1 times [2022-07-21 13:53:09,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:09,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656422417] [2022-07-21 13:53:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:09,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:09,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:09,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 13:53:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:10,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:53:10,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-07-21 13:53:10,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:53:10,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656422417] [2022-07-21 13:53:10,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656422417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:10,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:10,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:53:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050446315] [2022-07-21 13:53:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:10,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:53:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:53:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:53:10,437 INFO L87 Difference]: Start difference. First operand 11238 states and 15287 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:53:11,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:11,299 INFO L93 Difference]: Finished difference Result 24634 states and 33361 transitions. [2022-07-21 13:53:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:53:11,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-07-21 13:53:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:11,366 INFO L225 Difference]: With dead ends: 24634 [2022-07-21 13:53:11,366 INFO L226 Difference]: Without dead ends: 13482 [2022-07-21 13:53:11,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:53:11,417 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 1134 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 7976 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:11,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 7976 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 13:53:11,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13482 states. [2022-07-21 13:53:11,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13482 to 13441. [2022-07-21 13:53:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13441 states, 8963 states have (on average 1.2309494588865335) internal successors, (11033), 9228 states have internal predecessors, (11033), 3500 states have call successors, (3500), 985 states have call predecessors, (3500), 975 states have return successors, (3537), 3389 states have call predecessors, (3537), 3497 states have call successors, (3537) [2022-07-21 13:53:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13441 states to 13441 states and 18070 transitions. [2022-07-21 13:53:11,956 INFO L78 Accepts]: Start accepts. Automaton has 13441 states and 18070 transitions. Word has length 177 [2022-07-21 13:53:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:11,957 INFO L495 AbstractCegarLoop]: Abstraction has 13441 states and 18070 transitions. [2022-07-21 13:53:11,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:53:11,958 INFO L276 IsEmpty]: Start isEmpty. Operand 13441 states and 18070 transitions. [2022-07-21 13:53:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-21 13:53:11,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:11,960 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:11,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:12,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:12,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:12,180 INFO L85 PathProgramCache]: Analyzing trace with hash 111074208, now seen corresponding path program 1 times [2022-07-21 13:53:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:12,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610055417] [2022-07-21 13:53:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:12,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:12,184 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:12,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 13:53:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:13,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:53:13,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-21 13:53:14,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-21 13:53:15,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:15,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610055417] [2022-07-21 13:53:15,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610055417] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:53:15,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:53:15,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:53:15,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386646761] [2022-07-21 13:53:15,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:15,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:15,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:15,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:15,132 INFO L87 Difference]: Start difference. First operand 13441 states and 18070 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 13:53:15,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:15,640 INFO L93 Difference]: Finished difference Result 13447 states and 18075 transitions. [2022-07-21 13:53:15,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:53:15,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 179 [2022-07-21 13:53:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:15,706 INFO L225 Difference]: With dead ends: 13447 [2022-07-21 13:53:15,706 INFO L226 Difference]: Without dead ends: 13445 [2022-07-21 13:53:15,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:15,721 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:15,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13445 states. [2022-07-21 13:53:16,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13445 to 13445. [2022-07-21 13:53:16,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 8966 states have (on average 1.2308721838054875) internal successors, (11036), 9231 states have internal predecessors, (11036), 3500 states have call successors, (3500), 986 states have call predecessors, (3500), 976 states have return successors, (3537), 3389 states have call predecessors, (3537), 3497 states have call successors, (3537) [2022-07-21 13:53:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 18073 transitions. [2022-07-21 13:53:16,264 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 18073 transitions. Word has length 179 [2022-07-21 13:53:16,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:16,265 INFO L495 AbstractCegarLoop]: Abstraction has 13445 states and 18073 transitions. [2022-07-21 13:53:16,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 13:53:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 18073 transitions. [2022-07-21 13:53:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-21 13:53:16,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:16,267 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:16,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:16,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:16,485 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:16,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:16,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1283809074, now seen corresponding path program 1 times [2022-07-21 13:53:16,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:16,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394418888] [2022-07-21 13:53:16,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:16,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:16,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:16,489 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:16,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 13:53:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:17,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:53:17,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-21 13:53:18,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-21 13:53:19,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:19,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394418888] [2022-07-21 13:53:19,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394418888] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:53:19,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:53:19,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:53:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063915392] [2022-07-21 13:53:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:19,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:19,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:19,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:19,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:19,130 INFO L87 Difference]: Start difference. First operand 13445 states and 18073 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 13:53:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:19,537 INFO L93 Difference]: Finished difference Result 13781 states and 18375 transitions. [2022-07-21 13:53:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:53:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2022-07-21 13:53:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:19,597 INFO L225 Difference]: With dead ends: 13781 [2022-07-21 13:53:19,597 INFO L226 Difference]: Without dead ends: 13779 [2022-07-21 13:53:19,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:19,609 INFO L413 NwaCegarLoop]: 3498 mSDtfsCounter, 2069 mSDsluCounter, 8360 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 11858 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:19,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2077 Valid, 11858 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2022-07-21 13:53:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 13777. [2022-07-21 13:53:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13777 states, 9179 states have (on average 1.2270399825689073) internal successors, (11263), 9452 states have internal predecessors, (11263), 3536 states have call successors, (3536), 1069 states have call predecessors, (3536), 1059 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-21 13:53:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 18372 transitions. [2022-07-21 13:53:20,295 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 18372 transitions. Word has length 184 [2022-07-21 13:53:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:20,296 INFO L495 AbstractCegarLoop]: Abstraction has 13777 states and 18372 transitions. [2022-07-21 13:53:20,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 13:53:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 18372 transitions. [2022-07-21 13:53:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-21 13:53:20,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:20,299 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:20,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:20,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:20,520 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:20,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1249468064, now seen corresponding path program 1 times [2022-07-21 13:53:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:20,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722942816] [2022-07-21 13:53:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:20,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:20,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:20,524 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:20,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 13:53:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:21,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:53:21,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:22,799 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-21 13:53:22,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-21 13:53:23,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722942816] [2022-07-21 13:53:23,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722942816] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:53:23,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:53:23,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:53:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239198322] [2022-07-21 13:53:23,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:23,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:23,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:23,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:23,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:23,301 INFO L87 Difference]: Start difference. First operand 13777 states and 18372 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:53:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:23,897 INFO L93 Difference]: Finished difference Result 13783 states and 18377 transitions. [2022-07-21 13:53:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:53:23,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 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 189 [2022-07-21 13:53:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:23,947 INFO L225 Difference]: With dead ends: 13783 [2022-07-21 13:53:23,947 INFO L226 Difference]: Without dead ends: 13781 [2022-07-21 13:53:23,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:23,954 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:23,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2022-07-21 13:53:24,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13781. [2022-07-21 13:53:24,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13781 states, 9182 states have (on average 1.226965802657373) internal successors, (11266), 9455 states have internal predecessors, (11266), 3536 states have call successors, (3536), 1070 states have call predecessors, (3536), 1060 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-21 13:53:24,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13781 states to 13781 states and 18375 transitions. [2022-07-21 13:53:24,465 INFO L78 Accepts]: Start accepts. Automaton has 13781 states and 18375 transitions. Word has length 189 [2022-07-21 13:53:24,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:24,466 INFO L495 AbstractCegarLoop]: Abstraction has 13781 states and 18375 transitions. [2022-07-21 13:53:24,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:53:24,466 INFO L276 IsEmpty]: Start isEmpty. Operand 13781 states and 18375 transitions. [2022-07-21 13:53:24,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 13:53:24,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:24,469 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 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] [2022-07-21 13:53:24,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:24,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:24,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:24,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:24,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1834659795, now seen corresponding path program 1 times [2022-07-21 13:53:24,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:24,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198338524] [2022-07-21 13:53:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:24,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:24,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:24,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:24,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 13:53:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:26,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:53:26,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-07-21 13:53:26,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:53:26,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:26,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198338524] [2022-07-21 13:53:26,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198338524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:53:26,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:53:26,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:53:26,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116454080] [2022-07-21 13:53:26,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:26,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:53:26,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:26,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:53:26,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:53:26,161 INFO L87 Difference]: Start difference. First operand 13781 states and 18375 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 13:53:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:27,013 INFO L93 Difference]: Finished difference Result 40670 states and 54274 transitions. [2022-07-21 13:53:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:53:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 212 [2022-07-21 13:53:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:27,148 INFO L225 Difference]: With dead ends: 40670 [2022-07-21 13:53:27,148 INFO L226 Difference]: Without dead ends: 26975 [2022-07-21 13:53:27,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:53:27,211 INFO L413 NwaCegarLoop]: 6821 mSDtfsCounter, 3379 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 10277 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:27,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 10277 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:53:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26975 states. [2022-07-21 13:53:28,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26975 to 26928. [2022-07-21 13:53:28,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26928 states, 17950 states have (on average 1.2283565459610029) internal successors, (22049), 18462 states have internal predecessors, (22049), 6901 states have call successors, (6901), 2093 states have call predecessors, (6901), 2074 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-21 13:53:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26928 states to 26928 states and 35928 transitions. [2022-07-21 13:53:28,297 INFO L78 Accepts]: Start accepts. Automaton has 26928 states and 35928 transitions. Word has length 212 [2022-07-21 13:53:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:28,298 INFO L495 AbstractCegarLoop]: Abstraction has 26928 states and 35928 transitions. [2022-07-21 13:53:28,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 13:53:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 26928 states and 35928 transitions. [2022-07-21 13:53:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 13:53:28,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:28,302 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:53:28,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 13:53:28,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:28,524 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:28,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:28,524 INFO L85 PathProgramCache]: Analyzing trace with hash -335615054, now seen corresponding path program 1 times [2022-07-21 13:53:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:28,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209472933] [2022-07-21 13:53:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:28,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:28,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:28,527 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:28,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 13:53:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:29,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:53:29,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-21 13:53:30,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-21 13:53:31,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:31,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209472933] [2022-07-21 13:53:31,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209472933] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:53:31,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:53:31,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:53:31,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338344415] [2022-07-21 13:53:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:53:31,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:53:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:31,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:53:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:53:31,407 INFO L87 Difference]: Start difference. First operand 26928 states and 35928 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:53:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:53:32,154 INFO L93 Difference]: Finished difference Result 26934 states and 35933 transitions. [2022-07-21 13:53:32,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:53:32,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 3 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 194 [2022-07-21 13:53:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:53:32,242 INFO L225 Difference]: With dead ends: 26934 [2022-07-21 13:53:32,243 INFO L226 Difference]: Without dead ends: 26932 [2022-07-21 13:53:32,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:53:32,256 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3417 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:53:32,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3417 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:53:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26932 states. [2022-07-21 13:53:33,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26932 to 26932. [2022-07-21 13:53:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26932 states, 17953 states have (on average 1.2283183868991254) internal successors, (22052), 18465 states have internal predecessors, (22052), 6901 states have call successors, (6901), 2094 states have call predecessors, (6901), 2075 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-21 13:53:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26932 states to 26932 states and 35931 transitions. [2022-07-21 13:53:33,385 INFO L78 Accepts]: Start accepts. Automaton has 26932 states and 35931 transitions. Word has length 194 [2022-07-21 13:53:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:53:33,386 INFO L495 AbstractCegarLoop]: Abstraction has 26932 states and 35931 transitions. [2022-07-21 13:53:33,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:53:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26932 states and 35931 transitions. [2022-07-21 13:53:33,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-21 13:53:33,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:53:33,395 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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] [2022-07-21 13:53:33,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-21 13:53:33,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:53:33,612 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:53:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:53:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 41422791, now seen corresponding path program 1 times [2022-07-21 13:53:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:53:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164688541] [2022-07-21 13:53:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:53:33,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:53:33,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:53:33,615 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:53:33,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 13:53:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:53:34,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 13:53:34,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:53:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 112 proven. 3 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-21 13:53:35,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:53:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-21 13:53:36,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:53:36,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164688541] [2022-07-21 13:53:36,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164688541] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 13:53:36,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 13:53:36,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-21 13:53:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157209006] [2022-07-21 13:53:36,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 13:53:36,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 13:53:36,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:53:36,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 13:53:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-21 13:53:36,917 INFO L87 Difference]: Start difference. First operand 26932 states and 35931 transitions. Second operand has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (42), 3 states have call predecessors, (42), 8 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-21 13:54:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:06,542 INFO L93 Difference]: Finished difference Result 53875 states and 71830 transitions. [2022-07-21 13:54:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-21 13:54:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (42), 3 states have call predecessors, (42), 8 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 217 [2022-07-21 13:54:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:06,722 INFO L225 Difference]: With dead ends: 53875 [2022-07-21 13:54:06,722 INFO L226 Difference]: Without dead ends: 53708 [2022-07-21 13:54:06,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-21 13:54:06,749 INFO L413 NwaCegarLoop]: 6566 mSDtfsCounter, 7637 mSDsluCounter, 101265 mSDsCounter, 0 mSdLazyCounter, 6304 mSolverCounterSat, 1708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7675 SdHoareTripleChecker+Valid, 107831 SdHoareTripleChecker+Invalid, 8012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1708 IncrementalHoareTripleChecker+Valid, 6304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:06,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7675 Valid, 107831 Invalid, 8012 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1708 Valid, 6304 Invalid, 0 Unknown, 0 Unchecked, 25.6s Time] [2022-07-21 13:54:06,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53708 states. [2022-07-21 13:54:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53708 to 40351. [2022-07-21 13:54:08,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40351 states, 26894 states have (on average 1.2288242730720607) internal successors, (33048), 27669 states have internal predecessors, (33048), 10338 states have call successors, (10338), 3144 states have call predecessors, (10338), 3116 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-21 13:54:09,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40351 states to 40351 states and 53841 transitions. [2022-07-21 13:54:09,276 INFO L78 Accepts]: Start accepts. Automaton has 40351 states and 53841 transitions. Word has length 217 [2022-07-21 13:54:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:09,276 INFO L495 AbstractCegarLoop]: Abstraction has 40351 states and 53841 transitions. [2022-07-21 13:54:09,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (42), 3 states have call predecessors, (42), 8 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-21 13:54:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 40351 states and 53841 transitions. [2022-07-21 13:54:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 13:54:09,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:09,279 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:54:09,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-21 13:54:09,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:09,480 INFO L420 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)] === [2022-07-21 13:54:09,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:09,481 INFO L85 PathProgramCache]: Analyzing trace with hash 800969120, now seen corresponding path program 1 times [2022-07-21 13:54:09,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:09,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824003365] [2022-07-21 13:54:09,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:09,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:09,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:09,484 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:09,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 13:54:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:10,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:10,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-21 13:54:11,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:54:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-21 13:54:12,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:12,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824003365] [2022-07-21 13:54:12,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824003365] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:54:12,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:54:12,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:54:12,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527563967] [2022-07-21 13:54:12,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:12,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:54:12,287 INFO L87 Difference]: Start difference. First operand 40351 states and 53841 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:54:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:13,808 INFO L93 Difference]: Finished difference Result 40357 states and 53846 transitions. [2022-07-21 13:54:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:54:13,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 3 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 199 [2022-07-21 13:54:13,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:13,953 INFO L225 Difference]: With dead ends: 40357 [2022-07-21 13:54:13,953 INFO L226 Difference]: Without dead ends: 40355 [2022-07-21 13:54:13,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:54:13,975 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:13,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3416 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:54:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40355 states. [2022-07-21 13:54:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40355 to 40355. [2022-07-21 13:54:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40355 states, 26897 states have (on average 1.2287987507900509) internal successors, (33051), 27672 states have internal predecessors, (33051), 10338 states have call successors, (10338), 3145 states have call predecessors, (10338), 3117 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-21 13:54:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40355 states to 40355 states and 53844 transitions. [2022-07-21 13:54:16,039 INFO L78 Accepts]: Start accepts. Automaton has 40355 states and 53844 transitions. Word has length 199 [2022-07-21 13:54:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:16,040 INFO L495 AbstractCegarLoop]: Abstraction has 40355 states and 53844 transitions. [2022-07-21 13:54:16,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:54:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 40355 states and 53844 transitions. [2022-07-21 13:54:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-21 13:54:16,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:16,051 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:54:16,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-21 13:54:16,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:16,252 INFO L420 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)] === [2022-07-21 13:54:16,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:16,253 INFO L85 PathProgramCache]: Analyzing trace with hash -91105513, now seen corresponding path program 1 times [2022-07-21 13:54:16,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:16,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720546618] [2022-07-21 13:54:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:16,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:16,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:16,255 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:16,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 13:54:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:17,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:17,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-07-21 13:54:17,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:54:17,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:17,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720546618] [2022-07-21 13:54:17,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720546618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:54:17,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:54:17,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:54:17,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513122992] [2022-07-21 13:54:17,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:17,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:17,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:17,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:17,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:54:17,607 INFO L87 Difference]: Start difference. First operand 40355 states and 53844 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-21 13:54:23,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:23,667 INFO L93 Difference]: Finished difference Result 78459 states and 104836 transitions. [2022-07-21 13:54:23,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:54:23,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 230 [2022-07-21 13:54:23,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:23,809 INFO L225 Difference]: With dead ends: 78459 [2022-07-21 13:54:23,810 INFO L226 Difference]: Without dead ends: 38178 [2022-07-21 13:54:23,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:54:23,930 INFO L413 NwaCegarLoop]: 4568 mSDtfsCounter, 1107 mSDsluCounter, 8157 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:23,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 12725 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 13:54:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38178 states. [2022-07-21 13:54:25,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38178 to 38122. [2022-07-21 13:54:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38122 states, 25379 states have (on average 1.2303479254501752) internal successors, (31225), 26120 states have internal predecessors, (31225), 9832 states have call successors, (9832), 2936 states have call predecessors, (9832), 2908 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-21 13:54:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38122 states to 38122 states and 51006 transitions. [2022-07-21 13:54:26,017 INFO L78 Accepts]: Start accepts. Automaton has 38122 states and 51006 transitions. Word has length 230 [2022-07-21 13:54:26,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:26,017 INFO L495 AbstractCegarLoop]: Abstraction has 38122 states and 51006 transitions. [2022-07-21 13:54:26,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-21 13:54:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 38122 states and 51006 transitions. [2022-07-21 13:54:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-21 13:54:26,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:26,019 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:54:26,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-21 13:54:26,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:26,220 INFO L420 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)] === [2022-07-21 13:54:26,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:26,221 INFO L85 PathProgramCache]: Analyzing trace with hash -289109966, now seen corresponding path program 1 times [2022-07-21 13:54:26,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:26,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505143078] [2022-07-21 13:54:26,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:26,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:26,223 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:26,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 13:54:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:27,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:27,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:28,441 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-21 13:54:28,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:54:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-21 13:54:28,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:28,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505143078] [2022-07-21 13:54:28,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505143078] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:54:28,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:54:28,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:54:28,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37811211] [2022-07-21 13:54:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:28,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:54:28,923 INFO L87 Difference]: Start difference. First operand 38122 states and 51006 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 13:54:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:30,274 INFO L93 Difference]: Finished difference Result 38128 states and 51011 transitions. [2022-07-21 13:54:30,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:54:30,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 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 204 [2022-07-21 13:54:30,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:30,387 INFO L225 Difference]: With dead ends: 38128 [2022-07-21 13:54:30,388 INFO L226 Difference]: Without dead ends: 38126 [2022-07-21 13:54:30,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:54:30,408 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3415 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:30,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3415 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:54:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38126 states. [2022-07-21 13:54:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38126 to 38126. [2022-07-21 13:54:32,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38126 states, 25382 states have (on average 1.2303206997084548) internal successors, (31228), 26123 states have internal predecessors, (31228), 9832 states have call successors, (9832), 2937 states have call predecessors, (9832), 2909 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-21 13:54:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38126 states to 38126 states and 51009 transitions. [2022-07-21 13:54:32,323 INFO L78 Accepts]: Start accepts. Automaton has 38126 states and 51009 transitions. Word has length 204 [2022-07-21 13:54:32,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:32,323 INFO L495 AbstractCegarLoop]: Abstraction has 38126 states and 51009 transitions. [2022-07-21 13:54:32,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 13:54:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 38126 states and 51009 transitions. [2022-07-21 13:54:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-21 13:54:32,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:32,325 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:54:32,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-21 13:54:32,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:32,527 INFO L420 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)] === [2022-07-21 13:54:32,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:32,527 INFO L85 PathProgramCache]: Analyzing trace with hash 784348320, now seen corresponding path program 1 times [2022-07-21 13:54:32,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:32,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647666284] [2022-07-21 13:54:32,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:32,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:32,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:32,529 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:32,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-21 13:54:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:33,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:33,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-21 13:54:34,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:54:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-21 13:54:35,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647666284] [2022-07-21 13:54:35,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647666284] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:54:35,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:54:35,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:54:35,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238131385] [2022-07-21 13:54:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:35,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:35,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:35,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:54:35,414 INFO L87 Difference]: Start difference. First operand 38126 states and 51009 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:54:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:37,162 INFO L93 Difference]: Finished difference Result 38132 states and 51014 transitions. [2022-07-21 13:54:37,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:54:37,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 3 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 209 [2022-07-21 13:54:37,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:37,311 INFO L225 Difference]: With dead ends: 38132 [2022-07-21 13:54:37,311 INFO L226 Difference]: Without dead ends: 38130 [2022-07-21 13:54:37,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:54:37,332 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:37,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3414 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:54:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38130 states. [2022-07-21 13:54:39,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38130 to 38130. [2022-07-21 13:54:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38130 states, 25385 states have (on average 1.2302934804018122) internal successors, (31231), 26126 states have internal predecessors, (31231), 9832 states have call successors, (9832), 2938 states have call predecessors, (9832), 2910 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-21 13:54:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38130 states to 38130 states and 51012 transitions. [2022-07-21 13:54:39,323 INFO L78 Accepts]: Start accepts. Automaton has 38130 states and 51012 transitions. Word has length 209 [2022-07-21 13:54:39,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:39,323 INFO L495 AbstractCegarLoop]: Abstraction has 38130 states and 51012 transitions. [2022-07-21 13:54:39,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:54:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 38130 states and 51012 transitions. [2022-07-21 13:54:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-21 13:54:39,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:39,325 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:54:39,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-21 13:54:39,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:39,536 INFO L420 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)] === [2022-07-21 13:54:39,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:39,537 INFO L85 PathProgramCache]: Analyzing trace with hash -251513678, now seen corresponding path program 1 times [2022-07-21 13:54:39,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:39,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584800906] [2022-07-21 13:54:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:39,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:39,539 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:39,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-21 13:54:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:40,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:40,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:42,117 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-21 13:54:42,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:54:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-21 13:54:42,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:42,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584800906] [2022-07-21 13:54:42,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584800906] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:54:42,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:54:42,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:54:42,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630606497] [2022-07-21 13:54:42,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:42,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:42,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:42,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:42,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:54:42,713 INFO L87 Difference]: Start difference. First operand 38130 states and 51012 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 13:54:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:44,334 INFO L93 Difference]: Finished difference Result 38136 states and 51017 transitions. [2022-07-21 13:54:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:54:44,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 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 214 [2022-07-21 13:54:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:44,476 INFO L225 Difference]: With dead ends: 38136 [2022-07-21 13:54:44,476 INFO L226 Difference]: Without dead ends: 38134 [2022-07-21 13:54:44,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:54:44,496 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:44,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:54:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38134 states. [2022-07-21 13:54:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38134 to 38134. [2022-07-21 13:54:46,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38134 states, 25388 states have (on average 1.2302662675279659) internal successors, (31234), 26129 states have internal predecessors, (31234), 9832 states have call successors, (9832), 2939 states have call predecessors, (9832), 2911 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-21 13:54:46,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38134 states to 38134 states and 51015 transitions. [2022-07-21 13:54:46,496 INFO L78 Accepts]: Start accepts. Automaton has 38134 states and 51015 transitions. Word has length 214 [2022-07-21 13:54:46,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:46,497 INFO L495 AbstractCegarLoop]: Abstraction has 38134 states and 51015 transitions. [2022-07-21 13:54:46,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 13:54:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 38134 states and 51015 transitions. [2022-07-21 13:54:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-21 13:54:46,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:46,499 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 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, 1, 1] [2022-07-21 13:54:46,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-21 13:54:46,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:46,704 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:54:46,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:46,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1725204384, now seen corresponding path program 1 times [2022-07-21 13:54:46,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:46,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517130839] [2022-07-21 13:54:46,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:46,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:46,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:46,707 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:46,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-21 13:54:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:47,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:47,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-21 13:54:49,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:54:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-21 13:54:49,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:49,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517130839] [2022-07-21 13:54:49,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517130839] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:54:49,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:54:49,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:54:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693898504] [2022-07-21 13:54:49,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:49,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:49,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:49,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:54:49,984 INFO L87 Difference]: Start difference. First operand 38134 states and 51015 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 13:54:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:51,765 INFO L93 Difference]: Finished difference Result 38140 states and 51020 transitions. [2022-07-21 13:54:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:54:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 219 [2022-07-21 13:54:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:51,885 INFO L225 Difference]: With dead ends: 38140 [2022-07-21 13:54:51,885 INFO L226 Difference]: Without dead ends: 38136 [2022-07-21 13:54:51,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:54:51,902 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:51,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:54:51,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38136 states. [2022-07-21 13:54:53,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38136 to 38136. [2022-07-21 13:54:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38136 states, 25390 states have (on average 1.2302087435998426) internal successors, (31235), 26130 states have internal predecessors, (31235), 9832 states have call successors, (9832), 2940 states have call predecessors, (9832), 2911 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-21 13:54:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38136 states to 38136 states and 51016 transitions. [2022-07-21 13:54:53,897 INFO L78 Accepts]: Start accepts. Automaton has 38136 states and 51016 transitions. Word has length 219 [2022-07-21 13:54:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:54:53,898 INFO L495 AbstractCegarLoop]: Abstraction has 38136 states and 51016 transitions. [2022-07-21 13:54:53,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 13:54:53,899 INFO L276 IsEmpty]: Start isEmpty. Operand 38136 states and 51016 transitions. [2022-07-21 13:54:53,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-21 13:54:53,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:54:53,901 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1] [2022-07-21 13:54:53,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-21 13:54:54,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:54:54,124 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:54:54,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:54:54,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1206120754, now seen corresponding path program 1 times [2022-07-21 13:54:54,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:54:54,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837676948] [2022-07-21 13:54:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:54:54,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:54:54,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:54:54,127 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:54:54,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-21 13:54:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:54:55,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:54:55,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:54:56,376 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-21 13:54:56,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:54:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-21 13:54:56,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:54:56,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837676948] [2022-07-21 13:54:56,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837676948] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:54:56,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:54:56,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:54:56,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532046824] [2022-07-21 13:54:56,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:54:56,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:54:56,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:54:56,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:54:56,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:54:56,921 INFO L87 Difference]: Start difference. First operand 38136 states and 51016 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 13:54:58,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:54:58,502 INFO L93 Difference]: Finished difference Result 38136 states and 51016 transitions. [2022-07-21 13:54:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:54:58,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 224 [2022-07-21 13:54:58,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:54:58,664 INFO L225 Difference]: With dead ends: 38136 [2022-07-21 13:54:58,665 INFO L226 Difference]: Without dead ends: 37891 [2022-07-21 13:54:58,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:54:58,694 INFO L413 NwaCegarLoop]: 3467 mSDtfsCounter, 3407 mSDsluCounter, 6917 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 10384 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:54:58,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 10384 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 13:54:58,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37891 states. [2022-07-21 13:55:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37891 to 37891. [2022-07-21 13:55:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37891 states, 25223 states have (on average 1.2295523926574952) internal successors, (31013), 25943 states have internal predecessors, (31013), 9773 states have call successors, (9773), 2920 states have call predecessors, (9773), 2893 states have return successors, (9893), 9519 states have call predecessors, (9893), 9773 states have call successors, (9893) [2022-07-21 13:55:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37891 states to 37891 states and 50679 transitions. [2022-07-21 13:55:00,554 INFO L78 Accepts]: Start accepts. Automaton has 37891 states and 50679 transitions. Word has length 224 [2022-07-21 13:55:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:00,555 INFO L495 AbstractCegarLoop]: Abstraction has 37891 states and 50679 transitions. [2022-07-21 13:55:00,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 13:55:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 37891 states and 50679 transitions. [2022-07-21 13:55:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-21 13:55:00,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:00,558 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2022-07-21 13:55:00,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-21 13:55:00,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:55:00,784 INFO L420 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)] === [2022-07-21 13:55:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash -10417404, now seen corresponding path program 1 times [2022-07-21 13:55:00,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:55:00,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932446415] [2022-07-21 13:55:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:00,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:55:00,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:55:00,787 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:55:00,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-21 13:55:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:01,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:55:01,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:55:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-21 13:55:01,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:55:01,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:55:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932446415] [2022-07-21 13:55:01,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932446415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:01,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:01,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:55:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642418228] [2022-07-21 13:55:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:01,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:55:01,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:55:01,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:55:01,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:55:01,980 INFO L87 Difference]: Start difference. First operand 37891 states and 50679 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:55:04,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:04,715 INFO L93 Difference]: Finished difference Result 82080 states and 109359 transitions. [2022-07-21 13:55:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:55:04,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 251 [2022-07-21 13:55:04,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:04,862 INFO L225 Difference]: With dead ends: 82080 [2022-07-21 13:55:04,862 INFO L226 Difference]: Without dead ends: 44208 [2022-07-21 13:55:04,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:55:04,956 INFO L413 NwaCegarLoop]: 4499 mSDtfsCounter, 1093 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 7859 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:04,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 7859 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 13:55:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44208 states. [2022-07-21 13:55:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44208 to 44200. [2022-07-21 13:55:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44200 states, 29521 states have (on average 1.2245858880119238) internal successors, (36151), 30307 states have internal predecessors, (36151), 11145 states have call successors, (11145), 3559 states have call predecessors, (11145), 3532 states have return successors, (11265), 10879 states have call predecessors, (11265), 11145 states have call successors, (11265) [2022-07-21 13:55:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44200 states to 44200 states and 58561 transitions. [2022-07-21 13:55:07,106 INFO L78 Accepts]: Start accepts. Automaton has 44200 states and 58561 transitions. Word has length 251 [2022-07-21 13:55:07,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:07,106 INFO L495 AbstractCegarLoop]: Abstraction has 44200 states and 58561 transitions. [2022-07-21 13:55:07,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:55:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 44200 states and 58561 transitions. [2022-07-21 13:55:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-21 13:55:07,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:07,109 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2022-07-21 13:55:07,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-21 13:55:07,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:55:07,323 INFO L420 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)] === [2022-07-21 13:55:07,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash 51622210, now seen corresponding path program 1 times [2022-07-21 13:55:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:55:07,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178863107] [2022-07-21 13:55:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:07,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:55:07,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:55:07,326 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:55:07,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-21 13:55:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:08,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:55:08,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:55:08,632 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-21 13:55:08,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:55:08,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:55:08,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178863107] [2022-07-21 13:55:08,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178863107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:08,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:08,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:55:08,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193137627] [2022-07-21 13:55:08,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:08,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:55:08,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:55:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:55:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:55:08,634 INFO L87 Difference]: Start difference. First operand 44200 states and 58561 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:55:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:55:11,865 INFO L93 Difference]: Finished difference Result 105222 states and 139660 transitions. [2022-07-21 13:55:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:55:11,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 251 [2022-07-21 13:55:11,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:55:12,120 INFO L225 Difference]: With dead ends: 105222 [2022-07-21 13:55:12,120 INFO L226 Difference]: Without dead ends: 61108 [2022-07-21 13:55:12,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:55:12,255 INFO L413 NwaCegarLoop]: 5557 mSDtfsCounter, 2588 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2588 SdHoareTripleChecker+Valid, 8497 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:55:12,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2588 Valid, 8497 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 13:55:12,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61108 states. [2022-07-21 13:55:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61108 to 61100. [2022-07-21 13:55:15,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61100 states, 40667 states have (on average 1.223916197408218) internal successors, (49773), 41795 states have internal predecessors, (49773), 15562 states have call successors, (15562), 4902 states have call predecessors, (15562), 4869 states have return successors, (15694), 15242 states have call predecessors, (15694), 15562 states have call successors, (15694) [2022-07-21 13:55:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61100 states to 61100 states and 81029 transitions. [2022-07-21 13:55:15,411 INFO L78 Accepts]: Start accepts. Automaton has 61100 states and 81029 transitions. Word has length 251 [2022-07-21 13:55:15,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:55:15,411 INFO L495 AbstractCegarLoop]: Abstraction has 61100 states and 81029 transitions. [2022-07-21 13:55:15,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:55:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 61100 states and 81029 transitions. [2022-07-21 13:55:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-21 13:55:15,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:55:15,417 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 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, 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] [2022-07-21 13:55:15,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-21 13:55:15,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:55:15,636 INFO L420 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)] === [2022-07-21 13:55:15,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:55:15,636 INFO L85 PathProgramCache]: Analyzing trace with hash 707456788, now seen corresponding path program 1 times [2022-07-21 13:55:15,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:55:15,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009286021] [2022-07-21 13:55:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:55:15,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:55:15,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:55:15,638 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:55:15,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-21 13:55:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:55:16,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:55:16,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:55:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-21 13:55:16,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:55:16,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:55:16,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009286021] [2022-07-21 13:55:16,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009286021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:55:16,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:55:16,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:55:16,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779705835] [2022-07-21 13:55:16,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:55:16,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:55:16,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:55:16,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:55:16,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:55:16,941 INFO L87 Difference]: Start difference. First operand 61100 states and 81029 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)