./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-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-?-6c24879 [2022-07-12 15:18:31,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:18:31,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:18:31,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:18:31,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:18:31,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:18:31,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:18:31,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:18:31,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:18:31,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:18:31,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:18:31,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:18:31,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:18:31,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:18:31,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:18:31,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:18:31,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:18:31,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:18:31,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:18:31,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:18:31,108 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:18:31,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:18:31,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:18:31,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:18:31,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:18:31,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:18:31,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:18:31,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:18:31,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:18:31,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:18:31,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:18:31,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:18:31,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:18:31,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:18:31,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:18:31,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:18:31,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:18:31,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:18:31,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:18:31,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:18:31,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:18:31,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:18:31,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:18:31,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:18:31,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:18:31,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:18:31,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:18:31,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:18:31,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:18:31,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:18:31,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:18:31,160 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:18:31,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:18:31,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:18:31,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:18:31,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:18:31,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:18:31,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:18:31,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:18:31,163 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:18:31,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:18:31,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:18:31,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:18:31,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:18:31,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:18:31,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:18:31,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:18:31,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:18:31,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:18:31,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:18:31,165 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:18:31,166 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:18:31,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:18:31,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-12 15:18:31,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:18:31,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:18:31,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:18:31,373 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:18:31,374 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:18:31,374 INFO L432 ainManager$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 [2022-07-12 15:18:31,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b62673ee/685fa2290cf647ea8cbfbd4b9dfb2841/FLAG59fa8e788 [2022-07-12 15:18:32,033 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:18:32,034 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 [2022-07-12 15:18:32,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b62673ee/685fa2290cf647ea8cbfbd4b9dfb2841/FLAG59fa8e788 [2022-07-12 15:18:32,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b62673ee/685fa2290cf647ea8cbfbd4b9dfb2841 [2022-07-12 15:18:32,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:18:32,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:18:32,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:18:32,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:18:32,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:18:32,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:18:32" (1/1) ... [2022-07-12 15:18:32,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29790633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:32, skipping insertion in model container [2022-07-12 15:18:32,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:18:32" (1/1) ... [2022-07-12 15:18:32,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:18:32,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:18:34,743 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] [2022-07-12 15:18:34,746 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] [2022-07-12 15:18:34,747 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] [2022-07-12 15:18:34,748 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] [2022-07-12 15:18:34,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:18:34,821 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:18:34,957 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) [2022-07-12 15:18:34,962 INFO L158 Benchmark]: Toolchain (without parser) took 2751.02ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 80.2MB in the beginning and 101.9MB in the end (delta: -21.8MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-07-12 15:18:34,963 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 15:18:34,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2749.15ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 80.0MB in the beginning and 101.9MB in the end (delta: -22.0MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-07-12 15:18:34,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2749.15ms. Allocated memory was 125.8MB in the beginning and 224.4MB in the end (delta: 98.6MB). Free memory was 80.0MB in the beginning and 101.9MB in the end (delta: -22.0MB). Peak memory consumption was 77.3MB. 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-?-6c24879 [2022-07-12 15:18:36,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:18:36,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:18:36,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:18:36,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:18:36,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:18:36,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:18:36,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:18:36,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:18:36,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:18:36,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:18:36,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:18:36,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:18:36,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:18:36,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:18:36,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:18:36,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:18:36,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:18:36,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:18:36,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:18:36,679 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:18:36,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:18:36,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:18:36,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:18:36,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:18:36,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:18:36,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:18:36,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:18:36,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:18:36,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:18:36,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:18:36,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:18:36,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:18:36,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:18:36,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:18:36,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:18:36,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:18:36,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:18:36,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:18:36,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:18:36,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:18:36,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:18:36,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 15:18:36,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:18:36,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:18:36,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:18:36,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:18:36,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:18:36,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:18:36,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:18:36,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:18:36,744 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:18:36,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:18:36,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:18:36,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:18:36,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:18:36,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:18:36,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 15:18:36,745 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 15:18:36,745 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 15:18:36,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:18:36,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:18:36,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:18:36,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:18:36,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:18:36,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:18:36,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:18:36,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:18:36,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:18:36,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:18:36,747 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 15:18:36,747 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 15:18:36,747 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:18:36,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:18:36,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:18:36,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 15:18:36,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-12 15:18:37,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:18:37,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:18:37,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:18:37,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:18:37,038 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:18:37,039 INFO L432 ainManager$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 [2022-07-12 15:18:37,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49ec99668/e557f1ca64444ca080009361f6856c7b/FLAGa5b6d7970 [2022-07-12 15:18:37,839 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:18:37,840 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 [2022-07-12 15:18:37,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49ec99668/e557f1ca64444ca080009361f6856c7b/FLAGa5b6d7970 [2022-07-12 15:18:38,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49ec99668/e557f1ca64444ca080009361f6856c7b [2022-07-12 15:18:38,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:18:38,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:18:38,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:18:38,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:18:38,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:18:38,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:18:38" (1/1) ... [2022-07-12 15:18:38,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9f2f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:38, skipping insertion in model container [2022-07-12 15:18:38,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:18:38" (1/1) ... [2022-07-12 15:18:38,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:18:38,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:18:40,505 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 15:18:40,519 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 15:18:41,064 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] [2022-07-12 15:18:41,066 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] [2022-07-12 15:18:41,068 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] [2022-07-12 15:18:41,069 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] [2022-07-12 15:18:41,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:18:41,128 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 15:18:41,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:18:41,459 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] [2022-07-12 15:18:41,463 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] [2022-07-12 15:18:41,463 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] [2022-07-12 15:18:41,463 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] [2022-07-12 15:18:41,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:18:41,490 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:18:41,705 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] [2022-07-12 15:18:41,706 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] [2022-07-12 15:18:41,706 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] [2022-07-12 15:18:41,706 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] [2022-07-12 15:18:41,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:18:41,939 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:18:41,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41 WrapperNode [2022-07-12 15:18:41,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:18:41,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:18:41,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:18:41,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:18:41,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,182 INFO L137 Inliner]: procedures = 587, calls = 2923, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6318 [2022-07-12 15:18:42,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:18:42,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:18:42,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:18:42,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:18:42,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:18:42,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:18:42,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:18:42,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:18:42,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (1/1) ... [2022-07-12 15:18:42,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:18:42,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:18:42,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 15:18:42,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 15:18:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-12 15:18:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-12 15:18:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-12 15:18:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-12 15:18:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:18:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:18:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:18:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:18:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:18:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:18:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-12 15:18:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-12 15:18:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-07-12 15:18:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-07-12 15:18:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:18:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:18:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 15:18:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 15:18:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-12 15:18:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-12 15:18:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:18:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:18:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-12 15:18:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-12 15:18:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-12 15:18:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-12 15:18:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:18:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:18:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 15:18:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 15:18:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-12 15:18:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-12 15:18:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-12 15:18:42,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-12 15:18:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-12 15:18:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-12 15:18:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 15:18:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 15:18:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 15:18:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 15:18:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-12 15:18:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-12 15:18:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 15:18:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 15:18:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-12 15:18:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-12 15:18:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:18:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:18:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-12 15:18:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-12 15:18:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:18:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:18:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 15:18:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 15:18:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-12 15:18:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-12 15:18:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:18:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:18:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:18:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:18:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 15:18:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 15:18:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-12 15:18:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-12 15:18:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 15:18:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-12 15:18:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-12 15:18:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:18:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:18:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-12 15:18:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-12 15:18:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:18:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:18:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 15:18:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 15:18:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:18:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:18:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-12 15:18:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-12 15:18:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 15:18:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 15:18:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:18:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:18:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:18:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:18:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:18:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:18:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:18:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:18:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:18:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:18:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-12 15:18:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-12 15:18:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 15:18:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 15:18:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-12 15:18:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-12 15:18:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-12 15:18:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-12 15:18:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:18:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:18:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-12 15:18:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-12 15:18:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-12 15:18:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-12 15:18:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:18:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:18:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-12 15:18:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-12 15:18:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:18:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-12 15:18:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-12 15:18:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:18:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:18:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:18:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:18:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-12 15:18:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-12 15:18:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-12 15:18:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-12 15:18:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-12 15:18:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-12 15:18:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:18:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-12 15:18:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:18:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:18:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-12 15:18:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 15:18:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:18:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:18:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 15:18:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-12 15:18:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-12 15:18:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 15:18:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 15:18:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-12 15:18:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-12 15:18:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 15:18:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 15:18:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:18:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:18:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 15:18:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 15:18:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-12 15:18:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-12 15:18:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:18:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:18:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-12 15:18:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-12 15:18:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:18:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:18:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-12 15:18:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-12 15:18:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-12 15:18:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-12 15:18:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-12 15:18:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-12 15:18:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 15:18:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 15:18:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 15:18:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 15:18:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 15:18:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:18:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:18:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-12 15:18:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-12 15:18:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 15:18:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-12 15:18:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 15:18:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:18:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:18:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:18:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:18:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:18:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 15:18:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 15:18:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-12 15:18:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-12 15:18:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-12 15:18:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-12 15:18:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-12 15:18:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-12 15:18:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:18:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:18:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-12 15:18:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-12 15:18:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:18:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:18:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-12 15:18:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-12 15:18:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:18:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:18:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-12 15:18:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-12 15:18:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:18:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:18:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 15:18:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 15:18:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-12 15:18:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-12 15:18:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-07-12 15:18:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-07-12 15:18:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:18:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:18:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 15:18:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 15:18:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:18:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 15:18:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:18:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 15:18:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 15:18:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:18:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:18:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:18:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:18:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 15:18:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 15:18:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-12 15:18:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-12 15:18:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 15:18:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 15:18:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:18:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:18:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-12 15:18:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-12 15:18:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-07-12 15:18:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-07-12 15:18:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:18:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:18:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-12 15:18:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-12 15:18:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-12 15:18:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-12 15:18:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 15:18:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 15:18:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 15:18:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 15:18:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:18:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:18:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-12 15:18:42,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-12 15:18:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-12 15:18:42,594 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-12 15:18:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 15:18:42,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 15:18:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-12 15:18:42,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-12 15:18:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 15:18:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 15:18:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 15:18:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 15:18:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:18:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:18:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-12 15:18:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-12 15:18:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-12 15:18:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-12 15:18:42,595 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 15:18:42,595 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 15:18:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-12 15:18:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-12 15:18:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-12 15:18:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-12 15:18:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-12 15:18:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-12 15:18:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-12 15:18:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-12 15:18:42,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:18:42,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:18:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 15:18:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 15:18:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 15:18:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 15:18:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 15:18:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 15:18:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-12 15:18:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-12 15:18:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-12 15:18:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:18:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:18:43,344 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:18:43,347 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:18:43,570 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:19:22,615 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:19:22,688 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:19:22,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:19:22,780 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 15:19:22,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:19:22 BoogieIcfgContainer [2022-07-12 15:19:22,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:19:22,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:19:22,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:19:22,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:19:22,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:18:38" (1/3) ... [2022-07-12 15:19:22,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90ce050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:19:22, skipping insertion in model container [2022-07-12 15:19:22,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:18:41" (2/3) ... [2022-07-12 15:19:22,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90ce050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:19:22, skipping insertion in model container [2022-07-12 15:19:22,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:19:22" (3/3) ... [2022-07-12 15:19:22,802 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-12 15:19:22,812 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:19:22,812 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:19:22,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:19:22,872 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@28bfa7a3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@588a1e1b [2022-07-12 15:19:22,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:19:22,882 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) [2022-07-12 15:19:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 15:19:22,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:22,902 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] [2022-07-12 15:19:22,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:22,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:22,906 INFO L85 PathProgramCache]: Analyzing trace with hash 404930848, now seen corresponding path program 1 times [2022-07-12 15:19:22,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:22,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588085715] [2022-07-12 15:19:22,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:22,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:22,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:22,920 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) [2022-07-12 15:19:22,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 15:19:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:23,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:23,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 15:19:24,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:24,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:24,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588085715] [2022-07-12 15:19:24,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588085715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:24,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:24,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:24,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147457824] [2022-07-12 15:19:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:24,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:24,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:24,142 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) [2022-07-12 15:19:24,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:24,653 INFO L93 Difference]: Finished difference Result 7383 states and 10536 transitions. [2022-07-12 15:19:24,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:24,656 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 [2022-07-12 15:19:24,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:24,698 INFO L225 Difference]: With dead ends: 7383 [2022-07-12 15:19:24,699 INFO L226 Difference]: Without dead ends: 4894 [2022-07-12 15:19:24,723 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 [2022-07-12 15:19:24,730 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 3386 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-07-12 15:19:24,733 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] [2022-07-12 15:19:24,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2022-07-12 15:19:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4890. [2022-07-12 15:19:24,939 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) [2022-07-12 15:19:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6821 transitions. [2022-07-12 15:19:24,971 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6821 transitions. Word has length 112 [2022-07-12 15:19:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:24,972 INFO L495 AbstractCegarLoop]: Abstraction has 4890 states and 6821 transitions. [2022-07-12 15:19:24,972 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) [2022-07-12 15:19:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6821 transitions. [2022-07-12 15:19:24,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 15:19:24,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:24,977 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:19:24,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 15:19:25,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:25,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:25,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:25,202 INFO L85 PathProgramCache]: Analyzing trace with hash -376960966, now seen corresponding path program 1 times [2022-07-12 15:19:25,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:25,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124751531] [2022-07-12 15:19:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:25,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:25,207 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) [2022-07-12 15:19:25,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 15:19:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:26,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:26,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 15:19:26,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:26,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:26,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124751531] [2022-07-12 15:19:26,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124751531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:26,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:26,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:26,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959200199] [2022-07-12 15:19:26,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:26,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:26,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:26,541 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) [2022-07-12 15:19:27,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:27,051 INFO L93 Difference]: Finished difference Result 9061 states and 12519 transitions. [2022-07-12 15:19:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:27,051 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 [2022-07-12 15:19:27,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:27,072 INFO L225 Difference]: With dead ends: 9061 [2022-07-12 15:19:27,072 INFO L226 Difference]: Without dead ends: 4192 [2022-07-12 15:19:27,092 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 [2022-07-12 15:19:27,093 INFO L413 NwaCegarLoop]: 3749 mSDtfsCounter, 1143 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:27,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 7156 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 15:19:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2022-07-12 15:19:27,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4166. [2022-07-12 15:19:27,186 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) [2022-07-12 15:19:27,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 5660 transitions. [2022-07-12 15:19:27,211 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 5660 transitions. Word has length 117 [2022-07-12 15:19:27,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:27,212 INFO L495 AbstractCegarLoop]: Abstraction has 4166 states and 5660 transitions. [2022-07-12 15:19:27,212 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) [2022-07-12 15:19:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 5660 transitions. [2022-07-12 15:19:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 15:19:27,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:27,214 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] [2022-07-12 15:19:27,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:27,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:27,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash 656615772, now seen corresponding path program 1 times [2022-07-12 15:19:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:27,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303644393] [2022-07-12 15:19:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:27,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:27,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:27,440 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) [2022-07-12 15:19:27,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 15:19:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:28,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:28,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 15:19:28,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:28,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:28,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303644393] [2022-07-12 15:19:28,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303644393] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:28,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:28,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:28,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081864605] [2022-07-12 15:19:28,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:28,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:28,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:28,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:28,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:28,539 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) [2022-07-12 15:19:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:28,980 INFO L93 Difference]: Finished difference Result 11244 states and 15314 transitions. [2022-07-12 15:19:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:28,981 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 [2022-07-12 15:19:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:29,017 INFO L225 Difference]: With dead ends: 11244 [2022-07-12 15:19:29,017 INFO L226 Difference]: Without dead ends: 7099 [2022-07-12 15:19:29,036 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 [2022-07-12 15:19:29,036 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 [2022-07-12 15:19:29,037 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] [2022-07-12 15:19:29,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-07-12 15:19:29,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7065. [2022-07-12 15:19:29,220 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) [2022-07-12 15:19:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 9628 transitions. [2022-07-12 15:19:29,251 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 9628 transitions. Word has length 120 [2022-07-12 15:19:29,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:29,252 INFO L495 AbstractCegarLoop]: Abstraction has 7065 states and 9628 transitions. [2022-07-12 15:19:29,252 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) [2022-07-12 15:19:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 9628 transitions. [2022-07-12 15:19:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 15:19:29,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:29,254 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] [2022-07-12 15:19:29,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:29,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:29,469 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:29,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:29,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1149806852, now seen corresponding path program 1 times [2022-07-12 15:19:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:29,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535256065] [2022-07-12 15:19:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:29,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:29,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:29,484 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) [2022-07-12 15:19:29,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 15:19:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:30,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:30,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:30,625 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 15:19:30,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:30,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:30,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535256065] [2022-07-12 15:19:30,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535256065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:30,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:30,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:30,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86551301] [2022-07-12 15:19:30,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:30,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:30,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:30,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:30,627 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) [2022-07-12 15:19:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:31,237 INFO L93 Difference]: Finished difference Result 17952 states and 24573 transitions. [2022-07-12 15:19:31,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:31,237 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 [2022-07-12 15:19:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:31,298 INFO L225 Difference]: With dead ends: 17952 [2022-07-12 15:19:31,298 INFO L226 Difference]: Without dead ends: 10908 [2022-07-12 15:19:31,331 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 [2022-07-12 15:19:31,331 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:31,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 7483 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 15:19:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10908 states. [2022-07-12 15:19:31,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10908 to 10873. [2022-07-12 15:19:31,607 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) [2022-07-12 15:19:31,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10873 states to 10873 states and 14905 transitions. [2022-07-12 15:19:31,665 INFO L78 Accepts]: Start accepts. Automaton has 10873 states and 14905 transitions. Word has length 135 [2022-07-12 15:19:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:31,666 INFO L495 AbstractCegarLoop]: Abstraction has 10873 states and 14905 transitions. [2022-07-12 15:19:31,667 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) [2022-07-12 15:19:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 10873 states and 14905 transitions. [2022-07-12 15:19:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 15:19:31,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:31,672 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] [2022-07-12 15:19:31,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:31,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:31,886 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)] === [2022-07-12 15:19:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash -473532878, now seen corresponding path program 1 times [2022-07-12 15:19:31,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:31,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390065799] [2022-07-12 15:19:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:31,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:31,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:31,889 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) [2022-07-12 15:19:31,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 15:19:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:32,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:32,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-12 15:19:33,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:33,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:33,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390065799] [2022-07-12 15:19:33,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390065799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:33,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:33,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:19:33,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043399362] [2022-07-12 15:19:33,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:33,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:33,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:33,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:33,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:33,891 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) [2022-07-12 15:19:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:34,197 INFO L93 Difference]: Finished difference Result 10879 states and 14910 transitions. [2022-07-12 15:19:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:19:34,198 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 [2022-07-12 15:19:34,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:34,238 INFO L225 Difference]: With dead ends: 10879 [2022-07-12 15:19:34,238 INFO L226 Difference]: Without dead ends: 10877 [2022-07-12 15:19:34,245 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 [2022-07-12 15:19:34,246 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 [2022-07-12 15:19:34,246 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] [2022-07-12 15:19:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-07-12 15:19:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 10877. [2022-07-12 15:19:34,508 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) [2022-07-12 15:19:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 14908 transitions. [2022-07-12 15:19:34,549 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 14908 transitions. Word has length 164 [2022-07-12 15:19:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:34,549 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 14908 transitions. [2022-07-12 15:19:34,550 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) [2022-07-12 15:19:34,550 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 14908 transitions. [2022-07-12 15:19:34,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-12 15:19:34,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:34,553 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] [2022-07-12 15:19:34,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:34,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:34,769 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)] === [2022-07-12 15:19:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1390037152, now seen corresponding path program 1 times [2022-07-12 15:19:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:34,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002932861] [2022-07-12 15:19:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:34,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:34,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:34,772 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) [2022-07-12 15:19:34,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 15:19:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:35,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:35,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-12 15:19:36,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:19:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-12 15:19:37,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:37,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002932861] [2022-07-12 15:19:37,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002932861] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:19:37,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:19:37,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:19:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612354955] [2022-07-12 15:19:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:37,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:37,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:19:37,421 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) [2022-07-12 15:19:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:37,823 INFO L93 Difference]: Finished difference Result 11240 states and 15288 transitions. [2022-07-12 15:19:37,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:19:37,824 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 [2022-07-12 15:19:37,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:37,866 INFO L225 Difference]: With dead ends: 11240 [2022-07-12 15:19:37,866 INFO L226 Difference]: Without dead ends: 11238 [2022-07-12 15:19:37,873 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 [2022-07-12 15:19:37,875 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 [2022-07-12 15:19:37,875 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] [2022-07-12 15:19:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-12 15:19:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11234. [2022-07-12 15:19:38,215 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) [2022-07-12 15:19:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11234 states to 11234 states and 15284 transitions. [2022-07-12 15:19:38,267 INFO L78 Accepts]: Start accepts. Automaton has 11234 states and 15284 transitions. Word has length 169 [2022-07-12 15:19:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:38,267 INFO L495 AbstractCegarLoop]: Abstraction has 11234 states and 15284 transitions. [2022-07-12 15:19:38,267 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) [2022-07-12 15:19:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 11234 states and 15284 transitions. [2022-07-12 15:19:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-12 15:19:38,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:38,269 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] [2022-07-12 15:19:38,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:38,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:38,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:38,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:38,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1831592626, now seen corresponding path program 1 times [2022-07-12 15:19:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:38,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020833018] [2022-07-12 15:19:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:38,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:38,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:38,496 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) [2022-07-12 15:19:38,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 15:19:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:39,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:39,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-12 15:19:40,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:19:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-12 15:19:40,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:40,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020833018] [2022-07-12 15:19:40,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020833018] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:19:40,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:19:40,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:19:40,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567478745] [2022-07-12 15:19:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:40,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:40,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:40,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:19:40,725 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) [2022-07-12 15:19:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:41,091 INFO L93 Difference]: Finished difference Result 11240 states and 15289 transitions. [2022-07-12 15:19:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:19:41,092 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 [2022-07-12 15:19:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:41,146 INFO L225 Difference]: With dead ends: 11240 [2022-07-12 15:19:41,147 INFO L226 Difference]: Without dead ends: 11238 [2022-07-12 15:19:41,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:19:41,158 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 [2022-07-12 15:19:41,158 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] [2022-07-12 15:19:41,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-12 15:19:41,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11238. [2022-07-12 15:19:41,539 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) [2022-07-12 15:19:41,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11238 states to 11238 states and 15287 transitions. [2022-07-12 15:19:41,590 INFO L78 Accepts]: Start accepts. Automaton has 11238 states and 15287 transitions. Word has length 174 [2022-07-12 15:19:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:41,591 INFO L495 AbstractCegarLoop]: Abstraction has 11238 states and 15287 transitions. [2022-07-12 15:19:41,592 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) [2022-07-12 15:19:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 11238 states and 15287 transitions. [2022-07-12 15:19:41,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-12 15:19:41,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:41,594 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] [2022-07-12 15:19:41,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:41,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:41,815 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)] === [2022-07-12 15:19:41,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:41,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1207099844, now seen corresponding path program 1 times [2022-07-12 15:19:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:41,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960748344] [2022-07-12 15:19:41,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:41,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:41,819 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) [2022-07-12 15:19:41,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 15:19:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:42,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:42,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-07-12 15:19:43,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:43,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:43,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960748344] [2022-07-12 15:19:43,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960748344] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:43,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:43,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:43,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103437728] [2022-07-12 15:19:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:43,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:43,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:43,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:43,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:43,237 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) [2022-07-12 15:19:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:43,997 INFO L93 Difference]: Finished difference Result 24634 states and 33361 transitions. [2022-07-12 15:19:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:43,998 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 [2022-07-12 15:19:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:44,047 INFO L225 Difference]: With dead ends: 24634 [2022-07-12 15:19:44,047 INFO L226 Difference]: Without dead ends: 13482 [2022-07-12 15:19:44,085 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 [2022-07-12 15:19:44,085 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 1134 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-12 15:19:44,086 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] [2022-07-12 15:19:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13482 states. [2022-07-12 15:19:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13482 to 13441. [2022-07-12 15:19:44,523 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) [2022-07-12 15:19:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13441 states to 13441 states and 18070 transitions. [2022-07-12 15:19:44,577 INFO L78 Accepts]: Start accepts. Automaton has 13441 states and 18070 transitions. Word has length 177 [2022-07-12 15:19:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:44,578 INFO L495 AbstractCegarLoop]: Abstraction has 13441 states and 18070 transitions. [2022-07-12 15:19:44,578 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) [2022-07-12 15:19:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 13441 states and 18070 transitions. [2022-07-12 15:19:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-12 15:19:44,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:44,580 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] [2022-07-12 15:19:44,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:44,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:44,796 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:44,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:44,796 INFO L85 PathProgramCache]: Analyzing trace with hash 111074208, now seen corresponding path program 1 times [2022-07-12 15:19:44,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:44,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607111514] [2022-07-12 15:19:44,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:44,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:44,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:44,812 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) [2022-07-12 15:19:44,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 15:19:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:45,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-12 15:19:46,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:19:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-12 15:19:47,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:47,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607111514] [2022-07-12 15:19:47,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607111514] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:19:47,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:19:47,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:19:47,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917555556] [2022-07-12 15:19:47,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:47,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:47,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:19:47,268 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) [2022-07-12 15:19:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:47,828 INFO L93 Difference]: Finished difference Result 13447 states and 18075 transitions. [2022-07-12 15:19:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:19:47,829 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 [2022-07-12 15:19:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:47,882 INFO L225 Difference]: With dead ends: 13447 [2022-07-12 15:19:47,882 INFO L226 Difference]: Without dead ends: 13445 [2022-07-12 15:19:47,891 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 [2022-07-12 15:19:47,893 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 [2022-07-12 15:19:47,894 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] [2022-07-12 15:19:47,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13445 states. [2022-07-12 15:19:48,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13445 to 13445. [2022-07-12 15:19:48,341 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) [2022-07-12 15:19:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 18073 transitions. [2022-07-12 15:19:48,395 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 18073 transitions. Word has length 179 [2022-07-12 15:19:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:48,395 INFO L495 AbstractCegarLoop]: Abstraction has 13445 states and 18073 transitions. [2022-07-12 15:19:48,395 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) [2022-07-12 15:19:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 18073 transitions. [2022-07-12 15:19:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 15:19:48,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:48,398 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] [2022-07-12 15:19:48,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 15:19:48,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:48,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:48,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1283809074, now seen corresponding path program 1 times [2022-07-12 15:19:48,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:48,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747078527] [2022-07-12 15:19:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:48,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:48,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:48,616 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) [2022-07-12 15:19:48,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 15:19:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:49,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:49,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:50,690 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-12 15:19:50,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:19:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-12 15:19:51,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747078527] [2022-07-12 15:19:51,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747078527] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:19:51,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:19:51,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:19:51,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320966505] [2022-07-12 15:19:51,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:51,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:51,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:19:51,191 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) [2022-07-12 15:19:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:51,661 INFO L93 Difference]: Finished difference Result 13781 states and 18375 transitions. [2022-07-12 15:19:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:19:51,661 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 [2022-07-12 15:19:51,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:51,712 INFO L225 Difference]: With dead ends: 13781 [2022-07-12 15:19:51,713 INFO L226 Difference]: Without dead ends: 13779 [2022-07-12 15:19:51,719 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 [2022-07-12 15:19:51,720 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 [2022-07-12 15:19:51,721 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] [2022-07-12 15:19:51,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2022-07-12 15:19:52,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 13777. [2022-07-12 15:19:52,205 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) [2022-07-12 15:19:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 18372 transitions. [2022-07-12 15:19:52,256 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 18372 transitions. Word has length 184 [2022-07-12 15:19:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:52,257 INFO L495 AbstractCegarLoop]: Abstraction has 13777 states and 18372 transitions. [2022-07-12 15:19:52,257 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) [2022-07-12 15:19:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 18372 transitions. [2022-07-12 15:19:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 15:19:52,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:52,260 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] [2022-07-12 15:19:52,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:52,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:52,467 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:52,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1249468064, now seen corresponding path program 1 times [2022-07-12 15:19:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:52,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991667544] [2022-07-12 15:19:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:52,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:52,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:52,470 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) [2022-07-12 15:19:52,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 15:19:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:53,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:53,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-12 15:19:54,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:19:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-12 15:19:55,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:55,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991667544] [2022-07-12 15:19:55,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991667544] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:19:55,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:19:55,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:19:55,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027484528] [2022-07-12 15:19:55,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:55,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:55,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:55,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:55,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:19:55,168 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) [2022-07-12 15:19:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:55,680 INFO L93 Difference]: Finished difference Result 13783 states and 18377 transitions. [2022-07-12 15:19:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:19:55,681 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 [2022-07-12 15:19:55,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:55,728 INFO L225 Difference]: With dead ends: 13783 [2022-07-12 15:19:55,728 INFO L226 Difference]: Without dead ends: 13781 [2022-07-12 15:19:55,733 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 [2022-07-12 15:19:55,733 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 [2022-07-12 15:19:55,733 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] [2022-07-12 15:19:55,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2022-07-12 15:19:56,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13781. [2022-07-12 15:19:56,070 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) [2022-07-12 15:19:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13781 states to 13781 states and 18375 transitions. [2022-07-12 15:19:56,114 INFO L78 Accepts]: Start accepts. Automaton has 13781 states and 18375 transitions. Word has length 189 [2022-07-12 15:19:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:56,116 INFO L495 AbstractCegarLoop]: Abstraction has 13781 states and 18375 transitions. [2022-07-12 15:19:56,117 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) [2022-07-12 15:19:56,117 INFO L276 IsEmpty]: Start isEmpty. Operand 13781 states and 18375 transitions. [2022-07-12 15:19:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-12 15:19:56,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:56,119 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] [2022-07-12 15:19:56,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:56,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:56,342 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:56,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:56,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1834659795, now seen corresponding path program 1 times [2022-07-12 15:19:56,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:56,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398898612] [2022-07-12 15:19:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:56,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:56,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:56,345 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) [2022-07-12 15:19:56,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 15:19:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:57,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:57,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-07-12 15:19:57,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:57,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:57,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398898612] [2022-07-12 15:19:57,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398898612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:57,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:57,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823352819] [2022-07-12 15:19:57,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:57,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:57,565 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) [2022-07-12 15:19:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:58,449 INFO L93 Difference]: Finished difference Result 40670 states and 54274 transitions. [2022-07-12 15:19:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:58,450 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 [2022-07-12 15:19:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:58,537 INFO L225 Difference]: With dead ends: 40670 [2022-07-12 15:19:58,538 INFO L226 Difference]: Without dead ends: 26975 [2022-07-12 15:19:58,581 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 [2022-07-12 15:19:58,582 INFO L413 NwaCegarLoop]: 6822 mSDtfsCounter, 3379 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 10278 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 [2022-07-12 15:19:58,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 10278 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 15:19:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26975 states. [2022-07-12 15:19:59,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26975 to 26928. [2022-07-12 15:19:59,621 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) [2022-07-12 15:19:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26928 states to 26928 states and 35928 transitions. [2022-07-12 15:19:59,734 INFO L78 Accepts]: Start accepts. Automaton has 26928 states and 35928 transitions. Word has length 212 [2022-07-12 15:19:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:59,735 INFO L495 AbstractCegarLoop]: Abstraction has 26928 states and 35928 transitions. [2022-07-12 15:19:59,735 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) [2022-07-12 15:19:59,735 INFO L276 IsEmpty]: Start isEmpty. Operand 26928 states and 35928 transitions. [2022-07-12 15:19:59,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-12 15:19:59,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:59,738 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] [2022-07-12 15:19:59,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:59,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:59,952 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)] === [2022-07-12 15:19:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:59,952 INFO L85 PathProgramCache]: Analyzing trace with hash -335615054, now seen corresponding path program 1 times [2022-07-12 15:19:59,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:59,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136748939] [2022-07-12 15:19:59,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:59,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:59,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:59,958 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) [2022-07-12 15:19:59,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 15:20:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:01,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:01,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:02,091 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-12 15:20:02,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-12 15:20:02,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:02,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136748939] [2022-07-12 15:20:02,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136748939] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:02,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:02,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:02,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603509840] [2022-07-12 15:20:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:02,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:02,596 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) [2022-07-12 15:20:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:03,487 INFO L93 Difference]: Finished difference Result 26934 states and 35933 transitions. [2022-07-12 15:20:03,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:03,488 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 [2022-07-12 15:20:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:03,584 INFO L225 Difference]: With dead ends: 26934 [2022-07-12 15:20:03,585 INFO L226 Difference]: Without dead ends: 26932 [2022-07-12 15:20:03,598 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 [2022-07-12 15:20:03,608 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 [2022-07-12 15:20:03,609 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] [2022-07-12 15:20:03,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26932 states. [2022-07-12 15:20:04,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26932 to 26932. [2022-07-12 15:20:04,417 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) [2022-07-12 15:20:04,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26932 states to 26932 states and 35931 transitions. [2022-07-12 15:20:04,512 INFO L78 Accepts]: Start accepts. Automaton has 26932 states and 35931 transitions. Word has length 194 [2022-07-12 15:20:04,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:04,513 INFO L495 AbstractCegarLoop]: Abstraction has 26932 states and 35931 transitions. [2022-07-12 15:20:04,513 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) [2022-07-12 15:20:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 26932 states and 35931 transitions. [2022-07-12 15:20:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-12 15:20:04,515 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:04,516 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] [2022-07-12 15:20:04,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:04,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:04,722 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)] === [2022-07-12 15:20:04,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:04,723 INFO L85 PathProgramCache]: Analyzing trace with hash 41422791, now seen corresponding path program 1 times [2022-07-12 15:20:04,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:04,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755863730] [2022-07-12 15:20:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:04,725 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) [2022-07-12 15:20:04,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 15:20:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:05,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 15:20:05,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 112 proven. 3 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-12 15:20:06,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-12 15:20:07,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:07,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755863730] [2022-07-12 15:20:07,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755863730] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 15:20:07,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 15:20:07,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-12 15:20:07,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935366087] [2022-07-12 15:20:07,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 15:20:07,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 15:20:07,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 15:20:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-12 15:20:07,749 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) [2022-07-12 15:20:37,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:37,794 INFO L93 Difference]: Finished difference Result 53875 states and 71830 transitions. [2022-07-12 15:20:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-12 15:20:37,795 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 [2022-07-12 15:20:37,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:38,176 INFO L225 Difference]: With dead ends: 53875 [2022-07-12 15:20:38,176 INFO L226 Difference]: Without dead ends: 53708 [2022-07-12 15:20:38,200 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 [2022-07-12 15:20:38,203 INFO L413 NwaCegarLoop]: 6575 mSDtfsCounter, 7637 mSDsluCounter, 101374 mSDsCounter, 0 mSdLazyCounter, 6304 mSolverCounterSat, 1708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7675 SdHoareTripleChecker+Valid, 107949 SdHoareTripleChecker+Invalid, 8012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1708 IncrementalHoareTripleChecker+Valid, 6304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:38,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7675 Valid, 107949 Invalid, 8012 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1708 Valid, 6304 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time] [2022-07-12 15:20:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53708 states. [2022-07-12 15:20:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53708 to 40351. [2022-07-12 15:20:39,938 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) [2022-07-12 15:20:40,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40351 states to 40351 states and 53841 transitions. [2022-07-12 15:20:40,121 INFO L78 Accepts]: Start accepts. Automaton has 40351 states and 53841 transitions. Word has length 217 [2022-07-12 15:20:40,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:40,122 INFO L495 AbstractCegarLoop]: Abstraction has 40351 states and 53841 transitions. [2022-07-12 15:20:40,122 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) [2022-07-12 15:20:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 40351 states and 53841 transitions. [2022-07-12 15:20:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-12 15:20:40,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:40,124 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] [2022-07-12 15:20:40,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:40,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:40,329 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)] === [2022-07-12 15:20:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:40,330 INFO L85 PathProgramCache]: Analyzing trace with hash 800969120, now seen corresponding path program 1 times [2022-07-12 15:20:40,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:40,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6074326] [2022-07-12 15:20:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:40,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:40,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:40,347 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) [2022-07-12 15:20:40,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 15:20:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:41,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-12 15:20:42,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-12 15:20:43,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:43,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6074326] [2022-07-12 15:20:43,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6074326] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:43,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:43,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:43,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717304605] [2022-07-12 15:20:43,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:43,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:43,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:43,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:43,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:43,279 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) [2022-07-12 15:20:44,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:44,724 INFO L93 Difference]: Finished difference Result 40357 states and 53846 transitions. [2022-07-12 15:20:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:44,725 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 [2022-07-12 15:20:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:44,865 INFO L225 Difference]: With dead ends: 40357 [2022-07-12 15:20:44,866 INFO L226 Difference]: Without dead ends: 40355 [2022-07-12 15:20:44,889 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 [2022-07-12 15:20:44,889 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 [2022-07-12 15:20:44,890 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] [2022-07-12 15:20:44,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40355 states. [2022-07-12 15:20:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40355 to 40355. [2022-07-12 15:20:46,467 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) [2022-07-12 15:20:46,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40355 states to 40355 states and 53844 transitions. [2022-07-12 15:20:46,606 INFO L78 Accepts]: Start accepts. Automaton has 40355 states and 53844 transitions. Word has length 199 [2022-07-12 15:20:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:46,606 INFO L495 AbstractCegarLoop]: Abstraction has 40355 states and 53844 transitions. [2022-07-12 15:20:46,606 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) [2022-07-12 15:20:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 40355 states and 53844 transitions. [2022-07-12 15:20:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-12 15:20:46,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:46,609 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] [2022-07-12 15:20:46,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:46,829 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)] === [2022-07-12 15:20:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -289109966, now seen corresponding path program 1 times [2022-07-12 15:20:46,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:46,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11373261] [2022-07-12 15:20:46,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:46,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:46,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:46,832 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) [2022-07-12 15:20:46,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 15:20:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:47,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:47,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-12 15:20:49,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:49,999 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-12 15:20:50,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:50,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11373261] [2022-07-12 15:20:50,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11373261] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:50,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:50,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:50,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239192331] [2022-07-12 15:20:50,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:50,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:50,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:50,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:50,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:50,001 INFO L87 Difference]: Start difference. First operand 40355 states and 53844 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) [2022-07-12 15:20:51,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:51,471 INFO L93 Difference]: Finished difference Result 40361 states and 53849 transitions. [2022-07-12 15:20:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:51,472 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 [2022-07-12 15:20:51,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:51,620 INFO L225 Difference]: With dead ends: 40361 [2022-07-12 15:20:51,620 INFO L226 Difference]: Without dead ends: 40359 [2022-07-12 15:20:51,716 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 [2022-07-12 15:20:51,717 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 [2022-07-12 15:20:51,717 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] [2022-07-12 15:20:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40359 states. [2022-07-12 15:20:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40359 to 40359. [2022-07-12 15:20:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40359 states, 26900 states have (on average 1.2287732342007436) internal successors, (33054), 27675 states have internal predecessors, (33054), 10338 states have call successors, (10338), 3146 states have call predecessors, (10338), 3118 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-12 15:20:53,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40359 states to 40359 states and 53847 transitions. [2022-07-12 15:20:53,471 INFO L78 Accepts]: Start accepts. Automaton has 40359 states and 53847 transitions. Word has length 204 [2022-07-12 15:20:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:53,472 INFO L495 AbstractCegarLoop]: Abstraction has 40359 states and 53847 transitions. [2022-07-12 15:20:53,472 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) [2022-07-12 15:20:53,472 INFO L276 IsEmpty]: Start isEmpty. Operand 40359 states and 53847 transitions. [2022-07-12 15:20:53,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-12 15:20:53,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:53,474 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] [2022-07-12 15:20:53,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:53,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:53,689 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)] === [2022-07-12 15:20:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash 784348320, now seen corresponding path program 1 times [2022-07-12 15:20:53,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:53,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347703567] [2022-07-12 15:20:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:53,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:53,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:53,692 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) [2022-07-12 15:20:53,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 15:20:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:54,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:54,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:55,936 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-12 15:20:55,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-12 15:20:56,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:56,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347703567] [2022-07-12 15:20:56,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347703567] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:56,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:56,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738396497] [2022-07-12 15:20:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:56,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:56,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:56,404 INFO L87 Difference]: Start difference. First operand 40359 states and 53847 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) [2022-07-12 15:20:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:57,845 INFO L93 Difference]: Finished difference Result 40365 states and 53852 transitions. [2022-07-12 15:20:57,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:57,846 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 [2022-07-12 15:20:57,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:57,985 INFO L225 Difference]: With dead ends: 40365 [2022-07-12 15:20:57,986 INFO L226 Difference]: Without dead ends: 40363 [2022-07-12 15:20:58,011 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 [2022-07-12 15:20:58,012 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 [2022-07-12 15:20:58,012 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] [2022-07-12 15:20:58,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40363 states. [2022-07-12 15:20:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40363 to 40363. [2022-07-12 15:20:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40363 states, 26903 states have (on average 1.228747723302234) internal successors, (33057), 27678 states have internal predecessors, (33057), 10338 states have call successors, (10338), 3147 states have call predecessors, (10338), 3119 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-12 15:21:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40363 states to 40363 states and 53850 transitions. [2022-07-12 15:21:00,019 INFO L78 Accepts]: Start accepts. Automaton has 40363 states and 53850 transitions. Word has length 209 [2022-07-12 15:21:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:00,019 INFO L495 AbstractCegarLoop]: Abstraction has 40363 states and 53850 transitions. [2022-07-12 15:21:00,019 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) [2022-07-12 15:21:00,019 INFO L276 IsEmpty]: Start isEmpty. Operand 40363 states and 53850 transitions. [2022-07-12 15:21:00,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-12 15:21:00,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:00,022 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 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, 1, 1, 1, 1] [2022-07-12 15:21:00,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:00,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:00,245 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)] === [2022-07-12 15:21:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1067051351, now seen corresponding path program 1 times [2022-07-12 15:21:00,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:00,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117062901] [2022-07-12 15:21:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:00,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:00,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:00,248 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) [2022-07-12 15:21:00,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 15:21:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:01,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:21:01,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-07-12 15:21:01,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:01,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:01,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117062901] [2022-07-12 15:21:01,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117062901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:01,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:01,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:21:01,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679562045] [2022-07-12 15:21:01,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:01,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:01,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:01,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:01,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:21:01,655 INFO L87 Difference]: Start difference. First operand 40363 states and 53850 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, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-12 15:21:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:07,550 INFO L93 Difference]: Finished difference Result 78483 states and 104854 transitions. [2022-07-12 15:21:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:21:07,551 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, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 240 [2022-07-12 15:21:07,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:07,672 INFO L225 Difference]: With dead ends: 78483 [2022-07-12 15:21:07,673 INFO L226 Difference]: Without dead ends: 38194 [2022-07-12 15:21:07,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:21:07,776 INFO L413 NwaCegarLoop]: 4568 mSDtfsCounter, 1107 mSDsluCounter, 8158 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 12726 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:07,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 12726 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:21:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38194 states. [2022-07-12 15:21:09,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38194 to 38130. [2022-07-12 15:21:09,494 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) [2022-07-12 15:21:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38130 states to 38130 states and 51012 transitions. [2022-07-12 15:21:09,635 INFO L78 Accepts]: Start accepts. Automaton has 38130 states and 51012 transitions. Word has length 240 [2022-07-12 15:21:09,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:09,636 INFO L495 AbstractCegarLoop]: Abstraction has 38130 states and 51012 transitions. [2022-07-12 15:21:09,636 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, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-12 15:21:09,636 INFO L276 IsEmpty]: Start isEmpty. Operand 38130 states and 51012 transitions. [2022-07-12 15:21:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-12 15:21:09,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:09,638 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] [2022-07-12 15:21:09,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:09,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:09,861 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)] === [2022-07-12 15:21:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:09,861 INFO L85 PathProgramCache]: Analyzing trace with hash -251513678, now seen corresponding path program 1 times [2022-07-12 15:21:09,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324428499] [2022-07-12 15:21:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:09,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:09,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:09,863 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) [2022-07-12 15:21:09,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 15:21:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:10,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:21:10,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-12 15:21:12,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:21:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-12 15:21:12,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:12,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324428499] [2022-07-12 15:21:12,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324428499] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:21:12,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:21:12,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:21:12,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554225641] [2022-07-12 15:21:12,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:12,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:12,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:12,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:21:12,669 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) [2022-07-12 15:21:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:14,218 INFO L93 Difference]: Finished difference Result 38136 states and 51017 transitions. [2022-07-12 15:21:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:21:14,218 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 [2022-07-12 15:21:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:14,369 INFO L225 Difference]: With dead ends: 38136 [2022-07-12 15:21:14,369 INFO L226 Difference]: Without dead ends: 38134 [2022-07-12 15:21:14,385 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 [2022-07-12 15:21:14,385 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 [2022-07-12 15:21:14,386 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] [2022-07-12 15:21:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38134 states. [2022-07-12 15:21:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38134 to 38134. [2022-07-12 15:21:15,970 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) [2022-07-12 15:21:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38134 states to 38134 states and 51015 transitions. [2022-07-12 15:21:16,242 INFO L78 Accepts]: Start accepts. Automaton has 38134 states and 51015 transitions. Word has length 214 [2022-07-12 15:21:16,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:16,244 INFO L495 AbstractCegarLoop]: Abstraction has 38134 states and 51015 transitions. [2022-07-12 15:21:16,244 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) [2022-07-12 15:21:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 38134 states and 51015 transitions. [2022-07-12 15:21:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-12 15:21:16,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:16,261 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] [2022-07-12 15:21:16,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:16,461 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)] === [2022-07-12 15:21:16,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:16,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1725204384, now seen corresponding path program 1 times [2022-07-12 15:21:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:16,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730412953] [2022-07-12 15:21:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:16,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:16,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:16,464 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) [2022-07-12 15:21:16,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 15:21:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:17,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:21:17,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-12 15:21:18,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:21:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-12 15:21:19,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:19,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730412953] [2022-07-12 15:21:19,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730412953] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:21:19,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:21:19,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:21:19,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815004924] [2022-07-12 15:21:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:19,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:19,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:19,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:19,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:21:19,349 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) [2022-07-12 15:21:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:20,747 INFO L93 Difference]: Finished difference Result 38140 states and 51020 transitions. [2022-07-12 15:21:20,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:21:20,748 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 [2022-07-12 15:21:20,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:20,892 INFO L225 Difference]: With dead ends: 38140 [2022-07-12 15:21:20,892 INFO L226 Difference]: Without dead ends: 38136 [2022-07-12 15:21:20,917 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 [2022-07-12 15:21:20,918 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 [2022-07-12 15:21:20,918 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] [2022-07-12 15:21:20,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38136 states. [2022-07-12 15:21:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38136 to 38136. [2022-07-12 15:21:22,517 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) [2022-07-12 15:21:22,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38136 states to 38136 states and 51016 transitions. [2022-07-12 15:21:22,660 INFO L78 Accepts]: Start accepts. Automaton has 38136 states and 51016 transitions. Word has length 219 [2022-07-12 15:21:22,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:22,661 INFO L495 AbstractCegarLoop]: Abstraction has 38136 states and 51016 transitions. [2022-07-12 15:21:22,661 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) [2022-07-12 15:21:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 38136 states and 51016 transitions. [2022-07-12 15:21:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-12 15:21:22,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:22,678 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] [2022-07-12 15:21:22,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-12 15:21:22,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:22,903 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)] === [2022-07-12 15:21:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1206120754, now seen corresponding path program 1 times [2022-07-12 15:21:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:22,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262328494] [2022-07-12 15:21:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:22,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:22,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:22,906 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) [2022-07-12 15:21:22,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-12 15:21:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:23,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:21:23,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 15:21:25,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:21:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 15:21:25,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:25,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262328494] [2022-07-12 15:21:25,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262328494] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:21:25,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:21:25,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:21:25,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047370905] [2022-07-12 15:21:25,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:25,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:25,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:21:25,823 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) [2022-07-12 15:21:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:27,424 INFO L93 Difference]: Finished difference Result 38136 states and 51016 transitions. [2022-07-12 15:21:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:21:27,425 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 [2022-07-12 15:21:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:27,540 INFO L225 Difference]: With dead ends: 38136 [2022-07-12 15:21:27,541 INFO L226 Difference]: Without dead ends: 37891 [2022-07-12 15:21:27,558 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 [2022-07-12 15:21:27,558 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 [2022-07-12 15:21:27,559 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] [2022-07-12 15:21:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37891 states. [2022-07-12 15:21:29,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37891 to 37891. [2022-07-12 15:21:29,155 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) [2022-07-12 15:21:29,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37891 states to 37891 states and 50679 transitions. [2022-07-12 15:21:29,321 INFO L78 Accepts]: Start accepts. Automaton has 37891 states and 50679 transitions. Word has length 224 [2022-07-12 15:21:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:29,321 INFO L495 AbstractCegarLoop]: Abstraction has 37891 states and 50679 transitions. [2022-07-12 15:21:29,321 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) [2022-07-12 15:21:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 37891 states and 50679 transitions. [2022-07-12 15:21:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-12 15:21:29,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:29,324 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] [2022-07-12 15:21:29,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:29,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:29,535 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)] === [2022-07-12 15:21:29,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash -10417404, now seen corresponding path program 1 times [2022-07-12 15:21:29,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:29,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334296126] [2022-07-12 15:21:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:29,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:29,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:29,539 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) [2022-07-12 15:21:29,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-12 15:21:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:30,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:30,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-12 15:21:30,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:30,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:30,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334296126] [2022-07-12 15:21:30,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334296126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:30,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:30,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:30,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232263926] [2022-07-12 15:21:30,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:30,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:30,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:30,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:30,717 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) [2022-07-12 15:21:32,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:32,962 INFO L93 Difference]: Finished difference Result 82080 states and 109359 transitions. [2022-07-12 15:21:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:21:32,963 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 [2022-07-12 15:21:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:33,122 INFO L225 Difference]: With dead ends: 82080 [2022-07-12 15:21:33,122 INFO L226 Difference]: Without dead ends: 44208 [2022-07-12 15:21:33,230 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 [2022-07-12 15:21:33,230 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 [2022-07-12 15:21:33,231 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] [2022-07-12 15:21:33,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44208 states. [2022-07-12 15:21:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44208 to 44200. [2022-07-12 15:21:35,213 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) [2022-07-12 15:21:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44200 states to 44200 states and 58561 transitions. [2022-07-12 15:21:35,396 INFO L78 Accepts]: Start accepts. Automaton has 44200 states and 58561 transitions. Word has length 251 [2022-07-12 15:21:35,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:35,396 INFO L495 AbstractCegarLoop]: Abstraction has 44200 states and 58561 transitions. [2022-07-12 15:21:35,397 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) [2022-07-12 15:21:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 44200 states and 58561 transitions. [2022-07-12 15:21:35,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-12 15:21:35,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:35,400 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] [2022-07-12 15:21:35,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:35,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:35,605 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)] === [2022-07-12 15:21:35,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash 51622210, now seen corresponding path program 1 times [2022-07-12 15:21:35,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:35,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752131139] [2022-07-12 15:21:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:35,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:35,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:35,608 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) [2022-07-12 15:21:35,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-12 15:21:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:36,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:36,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-12 15:21:36,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:36,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:36,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752131139] [2022-07-12 15:21:36,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752131139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:36,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:36,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:36,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702172316] [2022-07-12 15:21:36,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:36,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:36,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:36,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:36,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:36,928 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) [2022-07-12 15:21:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:39,796 INFO L93 Difference]: Finished difference Result 105222 states and 139660 transitions. [2022-07-12 15:21:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:21:39,796 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 [2022-07-12 15:21:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:40,038 INFO L225 Difference]: With dead ends: 105222 [2022-07-12 15:21:40,039 INFO L226 Difference]: Without dead ends: 61108 [2022-07-12 15:21:40,269 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 [2022-07-12 15:21:40,269 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 [2022-07-12 15:21:40,269 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] [2022-07-12 15:21:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61108 states. [2022-07-12 15:21:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61108 to 61100. [2022-07-12 15:21:42,899 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) [2022-07-12 15:21:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61100 states to 61100 states and 81029 transitions. [2022-07-12 15:21:43,155 INFO L78 Accepts]: Start accepts. Automaton has 61100 states and 81029 transitions. Word has length 251 [2022-07-12 15:21:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:43,156 INFO L495 AbstractCegarLoop]: Abstraction has 61100 states and 81029 transitions. [2022-07-12 15:21:43,156 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) [2022-07-12 15:21:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 61100 states and 81029 transitions. [2022-07-12 15:21:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-12 15:21:43,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:43,160 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] [2022-07-12 15:21:43,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:43,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:43,387 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)] === [2022-07-12 15:21:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 707456788, now seen corresponding path program 1 times [2022-07-12 15:21:43,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:43,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460704152] [2022-07-12 15:21:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:43,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:43,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:43,390 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) [2022-07-12 15:21:43,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-12 15:21:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:44,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:44,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-12 15:21:44,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:44,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:44,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460704152] [2022-07-12 15:21:44,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460704152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:44,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:44,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:44,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083695035] [2022-07-12 15:21:44,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:44,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:44,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:44,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:44,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:44,704 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) [2022-07-12 15:21:47,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:47,973 INFO L93 Difference]: Finished difference Result 128489 states and 170070 transitions. [2022-07-12 15:21:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:21:47,980 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 313 [2022-07-12 15:21:47,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:48,366 INFO L225 Difference]: With dead ends: 128489 [2022-07-12 15:21:48,366 INFO L226 Difference]: Without dead ends: 67475 [2022-07-12 15:21:48,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:48,515 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 1093 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 7589 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:48,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 7589 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 15:21:48,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67475 states.