./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-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-wireless-cw1200-cw1200_wlan_spi.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 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:04:01,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:04:01,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:04:01,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:04:01,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:04:01,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:04:01,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:04:01,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:04:01,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:04:01,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:04:01,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:04:01,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:04:01,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:04:01,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:04:01,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:04:01,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:04:01,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:04:01,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:04:01,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:04:01,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:04:01,760 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:04:01,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:04:01,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:04:01,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:04:01,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:04:01,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:04:01,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:04:01,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:04:01,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:04:01,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:04:01,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:04:01,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:04:01,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:04:01,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:04:01,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:04:01,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:04:01,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:04:01,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:04:01,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:04:01,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:04:01,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:04:01,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:04:01,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:04:01,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:04:01,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:04:01,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:04:01,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:04:01,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:04:01,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:04:01,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:04:01,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:04:01,806 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:04:01,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:04:01,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:04:01,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:04:01,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:04:01,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:04:01,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:04:01,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:04:01,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:04:01,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:04:01,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:04:01,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:04:01,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:04:01,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:04:01,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:04:01,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:04:01,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:04:01,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:04:01,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:04:01,811 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:04:01,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:04:01,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:04:01,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2022-07-14 03:04:01,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:04:01,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:04:01,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:04:01,995 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:04:01,995 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:04:01,996 INFO L432 ainManager$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-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-07-14 03:04:02,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2eb7682/969f8a8169ff431d967d0e31ad39ff86/FLAG8b1b68555 [2022-07-14 03:04:02,629 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:04:02,630 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-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-07-14 03:04:02,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2eb7682/969f8a8169ff431d967d0e31ad39ff86/FLAG8b1b68555 [2022-07-14 03:04:02,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2eb7682/969f8a8169ff431d967d0e31ad39ff86 [2022-07-14 03:04:02,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:04:02,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:04:02,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:04:02,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:04:02,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:04:02,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:04:02" (1/1) ... [2022-07-14 03:04:02,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc4cd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:02, skipping insertion in model container [2022-07-14 03:04:02,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:04:02" (1/1) ... [2022-07-14 03:04:02,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:04:02,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:04:04,280 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2022-07-14 03:04:04,283 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2022-07-14 03:04:04,287 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2022-07-14 03:04:04,288 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2022-07-14 03:04:04,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:04:04,306 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:04:04,456 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: regaddr = (unsigned int )regaddr & 32767U [6557] 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.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) [2022-07-14 03:04:04,469 INFO L158 Benchmark]: Toolchain (without parser) took 1671.06ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 65.8MB in the beginning and 50.0MB in the end (delta: 15.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-07-14 03:04:04,470 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 03:04:04,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1665.78ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 65.8MB in the beginning and 50.0MB in the end (delta: 15.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-07-14 03:04:04,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1665.78ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 65.8MB in the beginning and 50.0MB in the end (delta: 15.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: regaddr = (unsigned int )regaddr & 32767U [6557] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: regaddr = (unsigned int )regaddr & 32767U [6557]: 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-wireless-cw1200-cw1200_wlan_spi.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 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:04:06,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:04:06,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:04:06,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:04:06,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:04:06,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:04:06,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:04:06,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:04:06,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:04:06,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:04:06,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:04:06,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:04:06,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:04:06,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:04:06,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:04:06,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:04:06,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:04:06,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:04:06,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:04:06,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:04:06,355 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:04:06,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:04:06,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:04:06,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:04:06,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:04:06,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:04:06,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:04:06,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:04:06,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:04:06,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:04:06,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:04:06,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:04:06,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:04:06,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:04:06,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:04:06,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:04:06,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:04:06,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:04:06,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:04:06,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:04:06,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:04:06,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:04:06,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 03:04:06,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:04:06,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:04:06,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:04:06,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:04:06,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:04:06,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:04:06,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:04:06,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:04:06,407 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:04:06,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:04:06,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:04:06,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:04:06,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:04:06,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:04:06,408 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 03:04:06,409 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 03:04:06,409 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 03:04:06,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:04:06,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:04:06,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:04:06,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:04:06,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:04:06,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:04:06,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:04:06,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:04:06,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:04:06,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:04:06,411 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 03:04:06,411 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 03:04:06,411 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:04:06,411 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:04:06,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:04:06,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 03:04:06,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2022-07-14 03:04:06,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:04:06,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:04:06,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:04:06,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:04:06,814 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:04:06,816 INFO L432 ainManager$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-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-07-14 03:04:06,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42a17919f/0a7782488bb642f5855b0e935883bbf4/FLAGb7f8e31b5 [2022-07-14 03:04:07,544 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:04:07,544 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-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-07-14 03:04:07,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42a17919f/0a7782488bb642f5855b0e935883bbf4/FLAGb7f8e31b5 [2022-07-14 03:04:07,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42a17919f/0a7782488bb642f5855b0e935883bbf4 [2022-07-14 03:04:07,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:04:07,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:04:07,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:04:07,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:04:07,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:04:07,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:04:07" (1/1) ... [2022-07-14 03:04:07,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a31162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:07, skipping insertion in model container [2022-07-14 03:04:07,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:04:07" (1/1) ... [2022-07-14 03:04:07,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:04:07,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:04:09,399 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2022-07-14 03:04:09,401 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2022-07-14 03:04:09,405 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2022-07-14 03:04:09,407 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2022-07-14 03:04:09,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:04:09,432 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 03:04:09,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:04:09,755 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2022-07-14 03:04:09,755 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2022-07-14 03:04:09,756 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2022-07-14 03:04:09,756 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2022-07-14 03:04:09,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:04:09,769 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:04:09,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2022-07-14 03:04:09,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2022-07-14 03:04:09,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2022-07-14 03:04:09,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2022-07-14 03:04:09,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:04:10,068 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:04:10,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10 WrapperNode [2022-07-14 03:04:10,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:04:10,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:04:10,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:04:10,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:04:10,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,198 INFO L137 Inliner]: procedures = 332, calls = 928, calls flagged for inlining = 152, calls inlined = 139, statements flattened = 2579 [2022-07-14 03:04:10,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:04:10,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:04:10,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:04:10,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:04:10,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:04:10,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:04:10,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:04:10,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:04:10,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (1/1) ... [2022-07-14 03:04:10,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:04:10,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:04:10,360 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) [2022-07-14 03:04:10,365 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 [2022-07-14 03:04:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 03:04:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 03:04:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 03:04:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 03:04:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-14 03:04:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 03:04:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 03:04:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:04:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:04:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:04:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:04:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:04:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:04:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 03:04:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 03:04:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2022-07-14 03:04:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2022-07-14 03:04:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-07-14 03:04:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-07-14 03:04:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:04:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:04:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2022-07-14 03:04:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2022-07-14 03:04:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 03:04:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 03:04:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2022-07-14 03:04:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2022-07-14 03:04:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:04:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:04:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-07-14 03:04:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-07-14 03:04:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:04:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-07-14 03:04:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-07-14 03:04:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:04:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:04:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:04:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:04:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:04:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2022-07-14 03:04:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2022-07-14 03:04:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 03:04:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 03:04:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 03:04:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:04:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 03:04:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:04:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~C_INT [2022-07-14 03:04:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~C_INT [2022-07-14 03:04:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-07-14 03:04:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-07-14 03:04:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 03:04:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 03:04:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 03:04:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 03:04:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:04:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:04:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-14 03:04:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-14 03:04:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 03:04:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 03:04:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2022-07-14 03:04:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2022-07-14 03:04:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:04:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:04:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2022-07-14 03:04:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2022-07-14 03:04:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:04:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:04:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:04:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:04:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 03:04:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 03:04:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2022-07-14 03:04:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2022-07-14 03:04:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:04:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:04:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-07-14 03:04:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-07-14 03:04:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2022-07-14 03:04:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2022-07-14 03:04:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:04:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:04:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2022-07-14 03:04:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2022-07-14 03:04:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:04:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 03:04:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 03:04:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 03:04:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 03:04:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-07-14 03:04:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-07-14 03:04:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:04:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:04:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:04:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:04:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 03:04:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-07-14 03:04:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-07-14 03:04:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:04:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:04:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2022-07-14 03:04:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2022-07-14 03:04:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:04:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:04:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 03:04:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 03:04:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2022-07-14 03:04:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2022-07-14 03:04:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:04:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:04:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2022-07-14 03:04:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2022-07-14 03:04:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2022-07-14 03:04:10,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2022-07-14 03:04:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2022-07-14 03:04:10,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2022-07-14 03:04:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:04:10,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:04:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:04:10,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:04:10,941 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:04:10,942 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:04:11,023 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:04:19,749 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 03:04:22,398 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:04:22,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:04:22,409 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-14 03:04:22,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:04:22 BoogieIcfgContainer [2022-07-14 03:04:22,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:04:22,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:04:22,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:04:22,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:04:22,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:04:07" (1/3) ... [2022-07-14 03:04:22,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af3c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:04:22, skipping insertion in model container [2022-07-14 03:04:22,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:04:10" (2/3) ... [2022-07-14 03:04:22,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af3c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:04:22, skipping insertion in model container [2022-07-14 03:04:22,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:04:22" (3/3) ... [2022-07-14 03:04:22,417 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2022-07-14 03:04:22,426 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:04:22,426 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 03:04:22,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:04:22,484 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@6aadec72, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6577a244 [2022-07-14 03:04:22,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 03:04:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 1044 states, 748 states have (on average 1.2807486631016043) internal successors, (958), 758 states have internal predecessors, (958), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) [2022-07-14 03:04:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-14 03:04:22,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:22,523 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:22,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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)] === [2022-07-14 03:04:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash 946022056, now seen corresponding path program 1 times [2022-07-14 03:04:22,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:22,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601281199] [2022-07-14 03:04:22,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:22,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:22,543 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) [2022-07-14 03:04:22,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 03:04:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:23,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:23,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:04:23,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:23,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:23,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601281199] [2022-07-14 03:04:23,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601281199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:23,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:23,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:23,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144131485] [2022-07-14 03:04:23,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:23,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:23,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:23,426 INFO L87 Difference]: Start difference. First operand has 1044 states, 748 states have (on average 1.2807486631016043) internal successors, (958), 758 states have internal predecessors, (958), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 03:04:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:25,092 INFO L93 Difference]: Finished difference Result 2841 states and 3996 transitions. [2022-07-14 03:04:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:25,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2022-07-14 03:04:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:25,114 INFO L225 Difference]: With dead ends: 2841 [2022-07-14 03:04:25,115 INFO L226 Difference]: Without dead ends: 1808 [2022-07-14 03:04:25,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:25,125 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 1070 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:25,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2951 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 03:04:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2022-07-14 03:04:25,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1781. [2022-07-14 03:04:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1283 states have (on average 1.2486360093530786) internal successors, (1602), 1310 states have internal predecessors, (1602), 402 states have call successors, (402), 94 states have call predecessors, (402), 93 states have return successors, (398), 392 states have call predecessors, (398), 398 states have call successors, (398) [2022-07-14 03:04:25,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2402 transitions. [2022-07-14 03:04:25,231 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2402 transitions. Word has length 151 [2022-07-14 03:04:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:25,232 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 2402 transitions. [2022-07-14 03:04:25,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 03:04:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2402 transitions. [2022-07-14 03:04:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-14 03:04:25,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:25,235 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:25,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 03:04:25,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:25,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2022-07-14 03:04:25,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash 666682290, now seen corresponding path program 1 times [2022-07-14 03:04:25,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:25,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031392194] [2022-07-14 03:04:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:25,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:25,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:25,453 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) [2022-07-14 03:04:25,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 03:04:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:25,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:25,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:04:26,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:26,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:26,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031392194] [2022-07-14 03:04:26,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031392194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:26,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:26,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:26,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809089356] [2022-07-14 03:04:26,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:26,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:26,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:26,270 INFO L87 Difference]: Start difference. First operand 1781 states and 2402 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 03:04:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:26,872 INFO L93 Difference]: Finished difference Result 5142 states and 6929 transitions. [2022-07-14 03:04:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:26,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2022-07-14 03:04:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:26,889 INFO L225 Difference]: With dead ends: 5142 [2022-07-14 03:04:26,889 INFO L226 Difference]: Without dead ends: 3388 [2022-07-14 03:04:26,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:26,897 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 1228 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:26,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 2884 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 03:04:26,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2022-07-14 03:04:26,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 3384. [2022-07-14 03:04:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 2458 states have (on average 1.2485760781122863) internal successors, (3069), 2504 states have internal predecessors, (3069), 740 states have call successors, (740), 184 states have call predecessors, (740), 183 states have return successors, (736), 727 states have call predecessors, (736), 736 states have call successors, (736) [2022-07-14 03:04:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 4545 transitions. [2022-07-14 03:04:27,014 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 4545 transitions. Word has length 151 [2022-07-14 03:04:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:27,015 INFO L495 AbstractCegarLoop]: Abstraction has 3384 states and 4545 transitions. [2022-07-14 03:04:27,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 03:04:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 4545 transitions. [2022-07-14 03:04:27,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-14 03:04:27,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:27,017 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:27,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:27,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:27,229 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)] === [2022-07-14 03:04:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:27,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1214873792, now seen corresponding path program 1 times [2022-07-14 03:04:27,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:27,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487043488] [2022-07-14 03:04:27,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:27,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:27,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:27,233 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) [2022-07-14 03:04:27,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 03:04:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:27,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:27,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:04:28,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:28,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:28,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487043488] [2022-07-14 03:04:28,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487043488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:28,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:28,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:28,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871450764] [2022-07-14 03:04:28,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:28,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:28,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:28,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:28,072 INFO L87 Difference]: Start difference. First operand 3384 states and 4545 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 03:04:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:28,667 INFO L93 Difference]: Finished difference Result 8087 states and 10840 transitions. [2022-07-14 03:04:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2022-07-14 03:04:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:28,691 INFO L225 Difference]: With dead ends: 8087 [2022-07-14 03:04:28,691 INFO L226 Difference]: Without dead ends: 4730 [2022-07-14 03:04:28,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:28,703 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 1164 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:28,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 2916 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 03:04:28,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2022-07-14 03:04:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 4701. [2022-07-14 03:04:28,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4701 states, 3407 states have (on average 1.2409744643381273) internal successors, (4228), 3482 states have internal predecessors, (4228), 1026 states have call successors, (1026), 266 states have call predecessors, (1026), 265 states have return successors, (1022), 1000 states have call predecessors, (1022), 1022 states have call successors, (1022) [2022-07-14 03:04:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 6276 transitions. [2022-07-14 03:04:28,895 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 6276 transitions. Word has length 157 [2022-07-14 03:04:28,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:28,896 INFO L495 AbstractCegarLoop]: Abstraction has 4701 states and 6276 transitions. [2022-07-14 03:04:28,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 03:04:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 6276 transitions. [2022-07-14 03:04:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-14 03:04:28,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:28,900 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:28,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:29,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:29,114 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)] === [2022-07-14 03:04:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1153141611, now seen corresponding path program 1 times [2022-07-14 03:04:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:29,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579983367] [2022-07-14 03:04:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:29,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:29,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:29,117 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) [2022-07-14 03:04:29,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 03:04:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:29,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:29,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:04:29,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:29,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:29,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579983367] [2022-07-14 03:04:29,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579983367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:29,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:29,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:29,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943743561] [2022-07-14 03:04:29,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:29,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:29,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:29,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:29,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:29,874 INFO L87 Difference]: Start difference. First operand 4701 states and 6276 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:04:30,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:30,293 INFO L93 Difference]: Finished difference Result 13639 states and 18452 transitions. [2022-07-14 03:04:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:30,293 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 163 [2022-07-14 03:04:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:30,347 INFO L225 Difference]: With dead ends: 13639 [2022-07-14 03:04:30,348 INFO L226 Difference]: Without dead ends: 8965 [2022-07-14 03:04:30,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:30,374 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 1319 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:30,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 2996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:04:30,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8965 states. [2022-07-14 03:04:30,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8965 to 8928. [2022-07-14 03:04:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8928 states, 6484 states have (on average 1.2447563232572487) internal successors, (8071), 6644 states have internal predecessors, (8071), 1946 states have call successors, (1946), 508 states have call predecessors, (1946), 495 states have return successors, (2128), 1859 states have call predecessors, (2128), 1942 states have call successors, (2128) [2022-07-14 03:04:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8928 states to 8928 states and 12145 transitions. [2022-07-14 03:04:30,805 INFO L78 Accepts]: Start accepts. Automaton has 8928 states and 12145 transitions. Word has length 163 [2022-07-14 03:04:30,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:30,805 INFO L495 AbstractCegarLoop]: Abstraction has 8928 states and 12145 transitions. [2022-07-14 03:04:30,806 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:04:30,806 INFO L276 IsEmpty]: Start isEmpty. Operand 8928 states and 12145 transitions. [2022-07-14 03:04:30,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-14 03:04:30,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:30,810 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 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] [2022-07-14 03:04:30,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:31,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:31,025 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:04:31,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2092097946, now seen corresponding path program 1 times [2022-07-14 03:04:31,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:31,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754367905] [2022-07-14 03:04:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:31,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:31,029 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) [2022-07-14 03:04:31,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 03:04:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:31,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:31,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:04:31,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:31,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:31,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754367905] [2022-07-14 03:04:31,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754367905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:31,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:31,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:31,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535788620] [2022-07-14 03:04:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:31,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:31,829 INFO L87 Difference]: Start difference. First operand 8928 states and 12145 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:04:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:32,623 INFO L93 Difference]: Finished difference Result 21979 states and 29773 transitions. [2022-07-14 03:04:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2022-07-14 03:04:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:32,688 INFO L225 Difference]: With dead ends: 21979 [2022-07-14 03:04:32,688 INFO L226 Difference]: Without dead ends: 13078 [2022-07-14 03:04:32,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:32,718 INFO L413 NwaCegarLoop]: 1828 mSDtfsCounter, 1220 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:32,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3157 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 03:04:32,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13078 states. [2022-07-14 03:04:33,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13078 to 13037. [2022-07-14 03:04:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9470 states have (on average 1.233790918690602) internal successors, (11684), 9730 states have internal predecessors, (11684), 2804 states have call successors, (2804), 779 states have call predecessors, (2804), 760 states have return successors, (3029), 2653 states have call predecessors, (3029), 2800 states have call successors, (3029) [2022-07-14 03:04:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 17517 transitions. [2022-07-14 03:04:33,195 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 17517 transitions. Word has length 175 [2022-07-14 03:04:33,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:33,195 INFO L495 AbstractCegarLoop]: Abstraction has 13037 states and 17517 transitions. [2022-07-14 03:04:33,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:04:33,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 17517 transitions. [2022-07-14 03:04:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-14 03:04:33,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:33,199 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:04:33,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:33,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:33,412 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)] === [2022-07-14 03:04:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1728494777, now seen corresponding path program 1 times [2022-07-14 03:04:33,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:33,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641326299] [2022-07-14 03:04:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:33,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:33,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:33,433 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) [2022-07-14 03:04:33,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 03:04:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:33,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:33,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2022-07-14 03:04:34,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:34,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:34,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641326299] [2022-07-14 03:04:34,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641326299] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:34,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:34,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:34,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536175107] [2022-07-14 03:04:34,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:34,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:34,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:34,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:34,228 INFO L87 Difference]: Start difference. First operand 13037 states and 17517 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-14 03:04:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:35,105 INFO L93 Difference]: Finished difference Result 36058 states and 48600 transitions. [2022-07-14 03:04:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:35,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2022-07-14 03:04:35,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:35,201 INFO L225 Difference]: With dead ends: 36058 [2022-07-14 03:04:35,201 INFO L226 Difference]: Without dead ends: 23977 [2022-07-14 03:04:35,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:35,249 INFO L413 NwaCegarLoop]: 2575 mSDtfsCounter, 1201 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 3916 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:35,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 3916 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:04:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23977 states. [2022-07-14 03:04:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23977 to 23973. [2022-07-14 03:04:35,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23973 states, 17502 states have (on average 1.2340303965261112) internal successors, (21598), 17922 states have internal predecessors, (21598), 5072 states have call successors, (5072), 1431 states have call predecessors, (5072), 1396 states have return successors, (5523), 4857 states have call predecessors, (5523), 5068 states have call successors, (5523) [2022-07-14 03:04:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23973 states to 23973 states and 32193 transitions. [2022-07-14 03:04:36,115 INFO L78 Accepts]: Start accepts. Automaton has 23973 states and 32193 transitions. Word has length 209 [2022-07-14 03:04:36,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:36,115 INFO L495 AbstractCegarLoop]: Abstraction has 23973 states and 32193 transitions. [2022-07-14 03:04:36,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-14 03:04:36,116 INFO L276 IsEmpty]: Start isEmpty. Operand 23973 states and 32193 transitions. [2022-07-14 03:04:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-14 03:04:36,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:36,119 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:04:36,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:36,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:36,332 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)] === [2022-07-14 03:04:36,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:36,333 INFO L85 PathProgramCache]: Analyzing trace with hash 194733257, now seen corresponding path program 1 times [2022-07-14 03:04:36,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:36,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328058166] [2022-07-14 03:04:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:36,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:36,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:36,335 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) [2022-07-14 03:04:36,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 03:04:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:36,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:36,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:41,652 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-07-14 03:04:41,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:41,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:41,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328058166] [2022-07-14 03:04:41,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328058166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:41,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:41,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:04:41,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994674870] [2022-07-14 03:04:41,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:41,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:41,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:41,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:41,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:04:41,653 INFO L87 Difference]: Start difference. First operand 23973 states and 32193 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-14 03:04:42,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:42,546 INFO L93 Difference]: Finished difference Result 23979 states and 32198 transitions. [2022-07-14 03:04:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:04:42,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 209 [2022-07-14 03:04:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:42,647 INFO L225 Difference]: With dead ends: 23979 [2022-07-14 03:04:42,647 INFO L226 Difference]: Without dead ends: 23977 [2022-07-14 03:04:42,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:42,659 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 1285 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 4101 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:42,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 4101 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:04:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23977 states. [2022-07-14 03:04:43,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23977 to 23977. [2022-07-14 03:04:43,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23977 states, 17505 states have (on average 1.233990288489003) internal successors, (21601), 17925 states have internal predecessors, (21601), 5072 states have call successors, (5072), 1432 states have call predecessors, (5072), 1397 states have return successors, (5523), 4857 states have call predecessors, (5523), 5068 states have call successors, (5523) [2022-07-14 03:04:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23977 states to 23977 states and 32196 transitions. [2022-07-14 03:04:43,480 INFO L78 Accepts]: Start accepts. Automaton has 23977 states and 32196 transitions. Word has length 209 [2022-07-14 03:04:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:43,483 INFO L495 AbstractCegarLoop]: Abstraction has 23977 states and 32196 transitions. [2022-07-14 03:04:43,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-14 03:04:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 23977 states and 32196 transitions. [2022-07-14 03:04:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-14 03:04:43,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:43,487 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:04:43,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:43,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:43,700 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:04:43,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1469888503, now seen corresponding path program 1 times [2022-07-14 03:04:43,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:43,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290330998] [2022-07-14 03:04:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:43,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:43,703 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) [2022-07-14 03:04:43,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 03:04:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:44,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:44,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-07-14 03:04:49,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-07-14 03:04:51,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:51,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290330998] [2022-07-14 03:04:51,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290330998] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:51,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:51,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:51,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478683217] [2022-07-14 03:04:51,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:51,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:51,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:51,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:51,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:51,296 INFO L87 Difference]: Start difference. First operand 23977 states and 32196 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:04:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:52,493 INFO L93 Difference]: Finished difference Result 23983 states and 32201 transitions. [2022-07-14 03:04:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:52,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 214 [2022-07-14 03:04:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:52,627 INFO L225 Difference]: With dead ends: 23983 [2022-07-14 03:04:52,627 INFO L226 Difference]: Without dead ends: 23981 [2022-07-14 03:04:52,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:52,635 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:52,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:04:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23981 states. [2022-07-14 03:04:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23981 to 23981. [2022-07-14 03:04:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 17508 states have (on average 1.2339501941969386) internal successors, (21604), 17928 states have internal predecessors, (21604), 5072 states have call successors, (5072), 1433 states have call predecessors, (5072), 1398 states have return successors, (5523), 4857 states have call predecessors, (5523), 5068 states have call successors, (5523) [2022-07-14 03:04:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 32199 transitions. [2022-07-14 03:04:53,291 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 32199 transitions. Word has length 214 [2022-07-14 03:04:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:53,292 INFO L495 AbstractCegarLoop]: Abstraction has 23981 states and 32199 transitions. [2022-07-14 03:04:53,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:04:53,292 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 32199 transitions. [2022-07-14 03:04:53,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 03:04:53,295 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:53,296 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 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] [2022-07-14 03:04:53,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-14 03:04:53,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:04:53,509 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)] === [2022-07-14 03:04:53,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1427327305, now seen corresponding path program 1 times [2022-07-14 03:04:53,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:53,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674082739] [2022-07-14 03:04:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:53,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:53,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:53,528 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) [2022-07-14 03:04:53,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 03:04:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:53,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:53,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-07-14 03:04:59,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-07-14 03:05:01,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:01,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674082739] [2022-07-14 03:05:01,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674082739] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:01,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:01,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:01,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396693435] [2022-07-14 03:05:01,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:01,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:01,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:01,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:01,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:01,449 INFO L87 Difference]: Start difference. First operand 23981 states and 32199 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:02,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:02,732 INFO L93 Difference]: Finished difference Result 23987 states and 32204 transitions. [2022-07-14 03:05:02,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:02,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 219 [2022-07-14 03:05:02,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:02,883 INFO L225 Difference]: With dead ends: 23987 [2022-07-14 03:05:02,893 INFO L226 Difference]: Without dead ends: 23985 [2022-07-14 03:05:02,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:02,925 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:02,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:05:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23985 states. [2022-07-14 03:05:03,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23985 to 23985. [2022-07-14 03:05:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23985 states, 17511 states have (on average 1.233910113642853) internal successors, (21607), 17931 states have internal predecessors, (21607), 5072 states have call successors, (5072), 1434 states have call predecessors, (5072), 1399 states have return successors, (5523), 4857 states have call predecessors, (5523), 5068 states have call successors, (5523) [2022-07-14 03:05:03,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23985 states to 23985 states and 32202 transitions. [2022-07-14 03:05:03,898 INFO L78 Accepts]: Start accepts. Automaton has 23985 states and 32202 transitions. Word has length 219 [2022-07-14 03:05:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:03,899 INFO L495 AbstractCegarLoop]: Abstraction has 23985 states and 32202 transitions. [2022-07-14 03:05:03,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 23985 states and 32202 transitions. [2022-07-14 03:05:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-14 03:05:03,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:03,905 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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] [2022-07-14 03:05:03,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-14 03:05:04,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:04,117 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)] === [2022-07-14 03:05:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:04,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1319813547, now seen corresponding path program 1 times [2022-07-14 03:05:04,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:04,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081343062] [2022-07-14 03:05:04,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:04,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:04,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:04,121 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) [2022-07-14 03:05:04,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 03:05:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:04,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:05:04,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-14 03:05:04,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:04,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:04,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081343062] [2022-07-14 03:05:04,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081343062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:04,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:04,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:05:04,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024481462] [2022-07-14 03:05:04,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:04,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:05:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:05:04,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:05:04,794 INFO L87 Difference]: Start difference. First operand 23985 states and 32202 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2022-07-14 03:05:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:06,075 INFO L93 Difference]: Finished difference Result 58000 states and 78039 transitions. [2022-07-14 03:05:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:05:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 234 [2022-07-14 03:05:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:06,192 INFO L225 Difference]: With dead ends: 58000 [2022-07-14 03:05:06,192 INFO L226 Difference]: Without dead ends: 34971 [2022-07-14 03:05:06,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:05:06,330 INFO L413 NwaCegarLoop]: 2587 mSDtfsCounter, 1234 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:06,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 3930 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:05:06,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34971 states. [2022-07-14 03:05:07,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34971 to 34937. [2022-07-14 03:05:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34937 states, 25559 states have (on average 1.233890214797136) internal successors, (31537), 26139 states have internal predecessors, (31537), 7340 states have call successors, (7340), 2086 states have call predecessors, (7340), 2035 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:05:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34937 states to 34937 states and 46894 transitions. [2022-07-14 03:05:07,581 INFO L78 Accepts]: Start accepts. Automaton has 34937 states and 46894 transitions. Word has length 234 [2022-07-14 03:05:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:07,582 INFO L495 AbstractCegarLoop]: Abstraction has 34937 states and 46894 transitions. [2022-07-14 03:05:07,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2022-07-14 03:05:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 34937 states and 46894 transitions. [2022-07-14 03:05:07,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-14 03:05:07,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:07,586 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:07,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-14 03:05:07,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:07,825 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)] === [2022-07-14 03:05:07,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1276760823, now seen corresponding path program 1 times [2022-07-14 03:05:07,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:07,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563880120] [2022-07-14 03:05:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:07,827 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) [2022-07-14 03:05:07,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 03:05:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:08,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:08,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-14 03:05:13,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-14 03:05:15,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:15,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563880120] [2022-07-14 03:05:15,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563880120] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:15,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:15,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:15,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468426768] [2022-07-14 03:05:15,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:15,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:15,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:15,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:15,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:15,916 INFO L87 Difference]: Start difference. First operand 34937 states and 46894 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:17,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:17,332 INFO L93 Difference]: Finished difference Result 34943 states and 46899 transitions. [2022-07-14 03:05:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:17,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 224 [2022-07-14 03:05:17,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:17,458 INFO L225 Difference]: With dead ends: 34943 [2022-07-14 03:05:17,458 INFO L226 Difference]: Without dead ends: 34941 [2022-07-14 03:05:17,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:17,476 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:17,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:05:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34941 states. [2022-07-14 03:05:18,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34941 to 34941. [2022-07-14 03:05:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34941 states, 25562 states have (on average 1.233862765041859) internal successors, (31540), 26142 states have internal predecessors, (31540), 7340 states have call successors, (7340), 2087 states have call predecessors, (7340), 2036 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:05:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34941 states to 34941 states and 46897 transitions. [2022-07-14 03:05:18,831 INFO L78 Accepts]: Start accepts. Automaton has 34941 states and 46897 transitions. Word has length 224 [2022-07-14 03:05:18,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:18,832 INFO L495 AbstractCegarLoop]: Abstraction has 34941 states and 46897 transitions. [2022-07-14 03:05:18,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 34941 states and 46897 transitions. [2022-07-14 03:05:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-14 03:05:18,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:18,836 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 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] [2022-07-14 03:05:18,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:19,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:19,049 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)] === [2022-07-14 03:05:19,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:19,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1177993783, now seen corresponding path program 1 times [2022-07-14 03:05:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:19,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997080590] [2022-07-14 03:05:19,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:19,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:19,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:19,052 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) [2022-07-14 03:05:19,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 03:05:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:19,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:19,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-14 03:05:25,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-14 03:05:27,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:27,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997080590] [2022-07-14 03:05:27,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997080590] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:27,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:27,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611145994] [2022-07-14 03:05:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:27,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:27,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:27,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:27,182 INFO L87 Difference]: Start difference. First operand 34941 states and 46897 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:28,567 INFO L93 Difference]: Finished difference Result 34947 states and 46902 transitions. [2022-07-14 03:05:28,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:28,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 229 [2022-07-14 03:05:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:28,700 INFO L225 Difference]: With dead ends: 34947 [2022-07-14 03:05:28,701 INFO L226 Difference]: Without dead ends: 34945 [2022-07-14 03:05:28,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:28,726 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:28,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:05:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34945 states. [2022-07-14 03:05:29,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34945 to 34945. [2022-07-14 03:05:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34945 states, 25565 states have (on average 1.2338353217289262) internal successors, (31543), 26145 states have internal predecessors, (31543), 7340 states have call successors, (7340), 2088 states have call predecessors, (7340), 2037 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:05:29,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34945 states to 34945 states and 46900 transitions. [2022-07-14 03:05:29,984 INFO L78 Accepts]: Start accepts. Automaton has 34945 states and 46900 transitions. Word has length 229 [2022-07-14 03:05:29,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:29,985 INFO L495 AbstractCegarLoop]: Abstraction has 34945 states and 46900 transitions. [2022-07-14 03:05:29,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:29,985 INFO L276 IsEmpty]: Start isEmpty. Operand 34945 states and 46900 transitions. [2022-07-14 03:05:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-14 03:05:29,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:29,989 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 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] [2022-07-14 03:05:30,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:30,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:30,202 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)] === [2022-07-14 03:05:30,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:30,202 INFO L85 PathProgramCache]: Analyzing trace with hash -912073225, now seen corresponding path program 1 times [2022-07-14 03:05:30,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:30,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746909943] [2022-07-14 03:05:30,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:30,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:30,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:30,204 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) [2022-07-14 03:05:30,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 03:05:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:30,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:30,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2022-07-14 03:05:36,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2022-07-14 03:05:39,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:39,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746909943] [2022-07-14 03:05:39,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746909943] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:39,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:39,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:39,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051789152] [2022-07-14 03:05:39,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:39,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:39,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:39,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:39,004 INFO L87 Difference]: Start difference. First operand 34945 states and 46900 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:40,371 INFO L93 Difference]: Finished difference Result 34951 states and 46905 transitions. [2022-07-14 03:05:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 234 [2022-07-14 03:05:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:40,486 INFO L225 Difference]: With dead ends: 34951 [2022-07-14 03:05:40,486 INFO L226 Difference]: Without dead ends: 34949 [2022-07-14 03:05:40,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:40,507 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:40,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:05:40,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34949 states. [2022-07-14 03:05:41,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34949 to 34949. [2022-07-14 03:05:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34949 states, 25568 states have (on average 1.23380788485607) internal successors, (31546), 26148 states have internal predecessors, (31546), 7340 states have call successors, (7340), 2089 states have call predecessors, (7340), 2038 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:05:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34949 states to 34949 states and 46903 transitions. [2022-07-14 03:05:41,707 INFO L78 Accepts]: Start accepts. Automaton has 34949 states and 46903 transitions. Word has length 234 [2022-07-14 03:05:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:41,708 INFO L495 AbstractCegarLoop]: Abstraction has 34949 states and 46903 transitions. [2022-07-14 03:05:41,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:41,708 INFO L276 IsEmpty]: Start isEmpty. Operand 34949 states and 46903 transitions. [2022-07-14 03:05:41,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 03:05:41,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:41,711 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 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] [2022-07-14 03:05:41,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-14 03:05:41,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:41,923 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)] === [2022-07-14 03:05:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash 258556489, now seen corresponding path program 1 times [2022-07-14 03:05:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:41,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541844059] [2022-07-14 03:05:41,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:41,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:41,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:41,926 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) [2022-07-14 03:05:41,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 03:05:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:42,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:42,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-14 03:05:48,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-14 03:05:50,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:50,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541844059] [2022-07-14 03:05:50,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541844059] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:50,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:50,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:50,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774067327] [2022-07-14 03:05:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:50,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:50,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:50,706 INFO L87 Difference]: Start difference. First operand 34949 states and 46903 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:52,216 INFO L93 Difference]: Finished difference Result 35471 states and 47338 transitions. [2022-07-14 03:05:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:52,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 239 [2022-07-14 03:05:52,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:52,365 INFO L225 Difference]: With dead ends: 35471 [2022-07-14 03:05:52,365 INFO L226 Difference]: Without dead ends: 35469 [2022-07-14 03:05:52,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:52,383 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1257 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 4159 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:52,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 4159 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:05:52,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35469 states. [2022-07-14 03:05:53,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35469 to 35469. [2022-07-14 03:05:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35469 states, 26001 states have (on average 1.2299142340679206) internal successors, (31979), 26581 states have internal predecessors, (31979), 7340 states have call successors, (7340), 2176 states have call predecessors, (7340), 2125 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:05:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35469 states to 35469 states and 47336 transitions. [2022-07-14 03:05:53,656 INFO L78 Accepts]: Start accepts. Automaton has 35469 states and 47336 transitions. Word has length 239 [2022-07-14 03:05:53,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:53,657 INFO L495 AbstractCegarLoop]: Abstraction has 35469 states and 47336 transitions. [2022-07-14 03:05:53,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:05:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 35469 states and 47336 transitions. [2022-07-14 03:05:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-14 03:05:53,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:53,667 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 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] [2022-07-14 03:05:53,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:53,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:53,881 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)] === [2022-07-14 03:05:53,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:53,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1509173001, now seen corresponding path program 1 times [2022-07-14 03:05:53,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:53,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263466283] [2022-07-14 03:05:53,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:53,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:53,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:53,885 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) [2022-07-14 03:05:53,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 03:05:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:54,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:54,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:06:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-07-14 03:06:00,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:06:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-07-14 03:06:02,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:06:02,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263466283] [2022-07-14 03:06:02,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263466283] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:06:02,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:06:02,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:06:02,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228314779] [2022-07-14 03:06:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:06:02,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:06:02,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:06:02,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:06:02,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:06:02,405 INFO L87 Difference]: Start difference. First operand 35469 states and 47336 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:06:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:06:04,024 INFO L93 Difference]: Finished difference Result 35475 states and 47341 transitions. [2022-07-14 03:06:04,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:06:04,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 244 [2022-07-14 03:06:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:06:04,162 INFO L225 Difference]: With dead ends: 35475 [2022-07-14 03:06:04,163 INFO L226 Difference]: Without dead ends: 35473 [2022-07-14 03:06:04,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:06:04,184 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:06:04,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:06:04,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35473 states. [2022-07-14 03:06:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35473 to 35473. [2022-07-14 03:06:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35473 states, 26004 states have (on average 1.229887709583141) internal successors, (31982), 26584 states have internal predecessors, (31982), 7340 states have call successors, (7340), 2177 states have call predecessors, (7340), 2126 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:06:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35473 states to 35473 states and 47339 transitions. [2022-07-14 03:06:05,407 INFO L78 Accepts]: Start accepts. Automaton has 35473 states and 47339 transitions. Word has length 244 [2022-07-14 03:06:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:06:05,407 INFO L495 AbstractCegarLoop]: Abstraction has 35473 states and 47339 transitions. [2022-07-14 03:06:05,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:06:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 35473 states and 47339 transitions. [2022-07-14 03:06:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-14 03:06:05,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:06:05,534 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 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] [2022-07-14 03:06:05,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-14 03:06:05,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:06:05,747 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)] === [2022-07-14 03:06:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:06:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash 77551305, now seen corresponding path program 1 times [2022-07-14 03:06:05,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:06:05,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011329198] [2022-07-14 03:06:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:06:05,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:06:05,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:06:05,750 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) [2022-07-14 03:06:05,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 03:06:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:06:06,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:06:06,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:06:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-07-14 03:06:12,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:06:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-07-14 03:06:14,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:06:14,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011329198] [2022-07-14 03:06:14,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011329198] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:06:14,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:06:14,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:06:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500502566] [2022-07-14 03:06:14,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:06:14,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:06:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:06:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:06:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:06:14,501 INFO L87 Difference]: Start difference. First operand 35473 states and 47339 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:06:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:06:16,109 INFO L93 Difference]: Finished difference Result 35479 states and 47344 transitions. [2022-07-14 03:06:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:06:16,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 249 [2022-07-14 03:06:16,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:06:16,225 INFO L225 Difference]: With dead ends: 35479 [2022-07-14 03:06:16,225 INFO L226 Difference]: Without dead ends: 35477 [2022-07-14 03:06:16,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:06:16,248 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:06:16,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:06:16,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35477 states. [2022-07-14 03:06:17,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35477 to 35477. [2022-07-14 03:06:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35477 states, 26007 states have (on average 1.229861191217749) internal successors, (31985), 26587 states have internal predecessors, (31985), 7340 states have call successors, (7340), 2178 states have call predecessors, (7340), 2127 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:06:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35477 states to 35477 states and 47342 transitions. [2022-07-14 03:06:17,693 INFO L78 Accepts]: Start accepts. Automaton has 35477 states and 47342 transitions. Word has length 249 [2022-07-14 03:06:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:06:17,694 INFO L495 AbstractCegarLoop]: Abstraction has 35477 states and 47342 transitions. [2022-07-14 03:06:17,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:06:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 35477 states and 47342 transitions. [2022-07-14 03:06:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-14 03:06:17,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:06:17,708 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 4, 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] [2022-07-14 03:06:17,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 03:06:17,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:06:17,922 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)] === [2022-07-14 03:06:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:06:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2116600823, now seen corresponding path program 1 times [2022-07-14 03:06:17,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:06:17,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090293598] [2022-07-14 03:06:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:06:17,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:06:17,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:06:17,924 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) [2022-07-14 03:06:17,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 03:06:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:06:18,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:06:18,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:06:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2022-07-14 03:06:24,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:06:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2022-07-14 03:06:26,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:06:26,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090293598] [2022-07-14 03:06:26,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090293598] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:06:26,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:06:26,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:06:26,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039356025] [2022-07-14 03:06:26,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:06:26,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:06:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:06:26,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:06:26,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:06:26,662 INFO L87 Difference]: Start difference. First operand 35477 states and 47342 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:06:28,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:06:28,196 INFO L93 Difference]: Finished difference Result 35483 states and 47347 transitions. [2022-07-14 03:06:28,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:06:28,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 254 [2022-07-14 03:06:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:06:28,309 INFO L225 Difference]: With dead ends: 35483 [2022-07-14 03:06:28,310 INFO L226 Difference]: Without dead ends: 35481 [2022-07-14 03:06:28,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:06:28,334 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:06:28,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:06:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35481 states. [2022-07-14 03:06:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35481 to 35481. [2022-07-14 03:06:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35481 states, 26010 states have (on average 1.229834678969627) internal successors, (31988), 26590 states have internal predecessors, (31988), 7340 states have call successors, (7340), 2179 states have call predecessors, (7340), 2128 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:06:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35481 states to 35481 states and 47345 transitions. [2022-07-14 03:06:29,796 INFO L78 Accepts]: Start accepts. Automaton has 35481 states and 47345 transitions. Word has length 254 [2022-07-14 03:06:29,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:06:29,796 INFO L495 AbstractCegarLoop]: Abstraction has 35481 states and 47345 transitions. [2022-07-14 03:06:29,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-07-14 03:06:29,797 INFO L276 IsEmpty]: Start isEmpty. Operand 35481 states and 47345 transitions. [2022-07-14 03:06:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-14 03:06:29,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:06:29,801 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 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] [2022-07-14 03:06:29,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-14 03:06:30,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:06:30,014 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)] === [2022-07-14 03:06:30,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:06:30,014 INFO L85 PathProgramCache]: Analyzing trace with hash -518554807, now seen corresponding path program 1 times [2022-07-14 03:06:30,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:06:30,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947589612] [2022-07-14 03:06:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:06:30,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:06:30,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:06:30,017 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) [2022-07-14 03:06:30,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 03:06:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:06:30,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:06:30,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:06:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-07-14 03:06:36,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:06:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-07-14 03:06:39,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:06:39,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947589612] [2022-07-14 03:06:39,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947589612] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:06:39,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:06:39,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:06:39,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176395661] [2022-07-14 03:06:39,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:06:39,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:06:39,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:06:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:06:39,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:06:39,270 INFO L87 Difference]: Start difference. First operand 35481 states and 47345 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 03:06:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:06:40,847 INFO L93 Difference]: Finished difference Result 35487 states and 47350 transitions. [2022-07-14 03:06:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:06:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2022-07-14 03:06:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:06:41,118 INFO L225 Difference]: With dead ends: 35487 [2022-07-14 03:06:41,119 INFO L226 Difference]: Without dead ends: 35483 [2022-07-14 03:06:41,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:06:41,136 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1305 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:06:41,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 4103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:06:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35483 states. [2022-07-14 03:06:42,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35483 to 35483. [2022-07-14 03:06:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35483 states, 26012 states have (on average 1.2297785637398124) internal successors, (31989), 26591 states have internal predecessors, (31989), 7340 states have call successors, (7340), 2180 states have call predecessors, (7340), 2128 states have return successors, (8017), 7061 states have call predecessors, (8017), 7336 states have call successors, (8017) [2022-07-14 03:06:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35483 states to 35483 states and 47346 transitions. [2022-07-14 03:06:42,481 INFO L78 Accepts]: Start accepts. Automaton has 35483 states and 47346 transitions. Word has length 259 [2022-07-14 03:06:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:06:42,481 INFO L495 AbstractCegarLoop]: Abstraction has 35483 states and 47346 transitions. [2022-07-14 03:06:42,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 03:06:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 35483 states and 47346 transitions. [2022-07-14 03:06:42,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-14 03:06:42,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:06:42,487 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 12, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:06:42,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-14 03:06:42,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:06:42,701 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)] === [2022-07-14 03:06:42,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:06:42,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1850795922, now seen corresponding path program 1 times [2022-07-14 03:06:42,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:06:42,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410966930] [2022-07-14 03:06:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:06:42,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:06:42,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:06:42,704 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) [2022-07-14 03:06:42,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 03:06:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:06:43,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 03:06:43,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:06:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 239 proven. 3 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-07-14 03:06:47,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:06:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 55 proven. 18 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2022-07-14 03:06:51,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:06:51,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410966930] [2022-07-14 03:06:51,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410966930] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:06:51,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:06:51,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-14 03:06:51,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848277538] [2022-07-14 03:06:51,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:06:51,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 03:06:51,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:06:51,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 03:06:51,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-14 03:06:51,966 INFO L87 Difference]: Start difference. First operand 35483 states and 47346 transitions. Second operand has 22 states, 21 states have (on average 5.761904761904762) internal successors, (121), 20 states have internal predecessors, (121), 6 states have call successors, (59), 3 states have call predecessors, (59), 8 states have return successors, (58), 7 states have call predecessors, (58), 6 states have call successors, (58) [2022-07-14 03:07:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:07:49,609 INFO L93 Difference]: Finished difference Result 92768 states and 123729 transitions. [2022-07-14 03:07:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-14 03:07:49,610 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.761904761904762) internal successors, (121), 20 states have internal predecessors, (121), 6 states have call successors, (59), 3 states have call predecessors, (59), 8 states have return successors, (58), 7 states have call predecessors, (58), 6 states have call successors, (58) Word has length 301 [2022-07-14 03:07:49,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:07:49,958 INFO L225 Difference]: With dead ends: 92768 [2022-07-14 03:07:49,958 INFO L226 Difference]: Without dead ends: 58109 [2022-07-14 03:07:50,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-14 03:07:50,042 INFO L413 NwaCegarLoop]: 2521 mSDtfsCounter, 5683 mSDsluCounter, 31401 mSDsCounter, 0 mSdLazyCounter, 3944 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5819 SdHoareTripleChecker+Valid, 33922 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 3944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:07:50,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5819 Valid, 33922 Invalid, 4900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [956 Valid, 3944 Invalid, 0 Unknown, 0 Unchecked, 50.5s Time] [2022-07-14 03:07:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58109 states. [2022-07-14 03:07:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58109 to 46811. [2022-07-14 03:07:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46811 states, 34312 states have (on average 1.2290452319888086) internal successors, (42171), 35051 states have internal predecessors, (42171), 9656 states have call successors, (9656), 2908 states have call predecessors, (9656), 2840 states have return successors, (10559), 9313 states have call predecessors, (10559), 9652 states have call successors, (10559) [2022-07-14 03:07:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46811 states to 46811 states and 62386 transitions. [2022-07-14 03:07:52,200 INFO L78 Accepts]: Start accepts. Automaton has 46811 states and 62386 transitions. Word has length 301 [2022-07-14 03:07:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:07:52,201 INFO L495 AbstractCegarLoop]: Abstraction has 46811 states and 62386 transitions. [2022-07-14 03:07:52,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.761904761904762) internal successors, (121), 20 states have internal predecessors, (121), 6 states have call successors, (59), 3 states have call predecessors, (59), 8 states have return successors, (58), 7 states have call predecessors, (58), 6 states have call successors, (58) [2022-07-14 03:07:52,201 INFO L276 IsEmpty]: Start isEmpty. Operand 46811 states and 62386 transitions. [2022-07-14 03:07:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-14 03:07:52,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:07:52,206 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:07:52,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-14 03:07:52,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:07:52,422 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)] === [2022-07-14 03:07:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:07:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -171073801, now seen corresponding path program 1 times [2022-07-14 03:07:52,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:07:52,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137766271] [2022-07-14 03:07:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:07:52,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:07:52,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:07:52,425 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) [2022-07-14 03:07:52,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 03:07:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:07:52,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:07:52,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:07:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2022-07-14 03:07:59,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:08:01,853 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2022-07-14 03:08:01,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:08:01,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137766271] [2022-07-14 03:08:01,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137766271] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:08:01,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:08:01,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:08:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757533980] [2022-07-14 03:08:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:01,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:08:01,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:08:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:08:01,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:08:01,854 INFO L87 Difference]: Start difference. First operand 46811 states and 62386 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 03:08:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:08:04,185 INFO L93 Difference]: Finished difference Result 46811 states and 62386 transitions. [2022-07-14 03:08:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:08:04,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 264 [2022-07-14 03:08:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:08:04,316 INFO L225 Difference]: With dead ends: 46811 [2022-07-14 03:08:04,317 INFO L226 Difference]: Without dead ends: 46316 [2022-07-14 03:08:04,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:08:04,343 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 1301 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 4100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:08:04,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 4100 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:08:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46316 states. [2022-07-14 03:08:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46316 to 35340. [2022-07-14 03:08:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35340 states, 25912 states have (on average 1.2281954306884841) internal successors, (31825), 26443 states have internal predecessors, (31825), 7277 states have call successors, (7277), 2199 states have call predecessors, (7277), 2149 states have return successors, (7958), 7047 states have call predecessors, (7958), 7277 states have call successors, (7958) [2022-07-14 03:08:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35340 states to 35340 states and 47060 transitions. [2022-07-14 03:08:06,109 INFO L78 Accepts]: Start accepts. Automaton has 35340 states and 47060 transitions. Word has length 264 [2022-07-14 03:08:06,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:08:06,109 INFO L495 AbstractCegarLoop]: Abstraction has 35340 states and 47060 transitions. [2022-07-14 03:08:06,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 03:08:06,110 INFO L276 IsEmpty]: Start isEmpty. Operand 35340 states and 47060 transitions. [2022-07-14 03:08:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-14 03:08:06,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:08:06,115 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:08:06,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 03:08:06,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:08:06,330 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:08:06,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:08:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1692693289, now seen corresponding path program 1 times [2022-07-14 03:08:06,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:08:06,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393654716] [2022-07-14 03:08:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:08:06,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:08:06,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:08:06,340 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) [2022-07-14 03:08:06,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-14 03:08:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:06,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:08:06,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:08:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-14 03:08:07,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:08:07,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:08:07,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393654716] [2022-07-14 03:08:07,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393654716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:08:07,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:08:07,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:08:07,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923697595] [2022-07-14 03:08:07,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:07,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:08:07,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:08:07,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:08:07,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:08:07,072 INFO L87 Difference]: Start difference. First operand 35340 states and 47060 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-14 03:08:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:08:09,420 INFO L93 Difference]: Finished difference Result 80740 states and 107624 transitions. [2022-07-14 03:08:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:08:09,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 270 [2022-07-14 03:08:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:08:09,568 INFO L225 Difference]: With dead ends: 80740 [2022-07-14 03:08:09,568 INFO L226 Difference]: Without dead ends: 46320 [2022-07-14 03:08:09,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:08:09,646 INFO L413 NwaCegarLoop]: 2519 mSDtfsCounter, 1195 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:08:09,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 3810 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:08:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46320 states. [2022-07-14 03:08:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46320 to 35340. [2022-07-14 03:08:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35340 states, 25912 states have (on average 1.2281954306884841) internal successors, (31825), 26443 states have internal predecessors, (31825), 7277 states have call successors, (7277), 2199 states have call predecessors, (7277), 2149 states have return successors, (7958), 7047 states have call predecessors, (7958), 7277 states have call successors, (7958) [2022-07-14 03:08:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35340 states to 35340 states and 47060 transitions. [2022-07-14 03:08:11,645 INFO L78 Accepts]: Start accepts. Automaton has 35340 states and 47060 transitions. Word has length 270 [2022-07-14 03:08:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:08:11,645 INFO L495 AbstractCegarLoop]: Abstraction has 35340 states and 47060 transitions. [2022-07-14 03:08:11,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-14 03:08:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand 35340 states and 47060 transitions. [2022-07-14 03:08:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-14 03:08:11,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:08:11,651 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:08:11,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-14 03:08:11,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:08:11,865 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)] === [2022-07-14 03:08:11,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:08:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash -816674283, now seen corresponding path program 1 times [2022-07-14 03:08:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:08:11,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976267230] [2022-07-14 03:08:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:08:11,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:08:11,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:08:11,867 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) [2022-07-14 03:08:11,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-14 03:08:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:12,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:08:12,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:08:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-07-14 03:08:12,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:08:12,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:08:12,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976267230] [2022-07-14 03:08:12,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976267230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:08:12,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:08:12,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:08:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356861367] [2022-07-14 03:08:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:12,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:08:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:08:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:08:12,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:08:12,688 INFO L87 Difference]: Start difference. First operand 35340 states and 47060 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-14 03:08:15,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:08:15,273 INFO L93 Difference]: Finished difference Result 80804 states and 107752 transitions. [2022-07-14 03:08:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:08:15,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 270 [2022-07-14 03:08:15,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:08:15,445 INFO L225 Difference]: With dead ends: 80804 [2022-07-14 03:08:15,446 INFO L226 Difference]: Without dead ends: 46432 [2022-07-14 03:08:15,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:08:15,531 INFO L413 NwaCegarLoop]: 2517 mSDtfsCounter, 1201 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:08:15,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 3804 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:08:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46432 states. [2022-07-14 03:08:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46432 to 46428. [2022-07-14 03:08:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46428 states, 34068 states have (on average 1.228807091698955) internal successors, (41863), 34759 states have internal predecessors, (41863), 9545 states have call successors, (9545), 2879 states have call predecessors, (9545), 2813 states have return successors, (10452), 9251 states have call predecessors, (10452), 9545 states have call successors, (10452) [2022-07-14 03:08:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46428 states to 46428 states and 61860 transitions. [2022-07-14 03:08:17,954 INFO L78 Accepts]: Start accepts. Automaton has 46428 states and 61860 transitions. Word has length 270 [2022-07-14 03:08:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:08:17,955 INFO L495 AbstractCegarLoop]: Abstraction has 46428 states and 61860 transitions. [2022-07-14 03:08:17,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-14 03:08:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 46428 states and 61860 transitions. [2022-07-14 03:08:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-14 03:08:17,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:08:17,963 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:08:17,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-14 03:08:18,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:08:18,194 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)] === [2022-07-14 03:08:18,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:08:18,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1924121290, now seen corresponding path program 1 times [2022-07-14 03:08:18,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:08:18,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20632287] [2022-07-14 03:08:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:08:18,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:08:18,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:08:18,197 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) [2022-07-14 03:08:18,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-14 03:08:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:18,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:08:18,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:08:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-07-14 03:08:19,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:08:19,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:08:19,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20632287] [2022-07-14 03:08:19,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20632287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:08:19,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:08:19,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:08:19,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873501831] [2022-07-14 03:08:19,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:19,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:08:19,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:08:19,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:08:19,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:08:19,121 INFO L87 Difference]: Start difference. First operand 46428 states and 61860 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:08:22,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:08:22,729 INFO L93 Difference]: Finished difference Result 113524 states and 151324 transitions. [2022-07-14 03:08:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:08:22,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 289 [2022-07-14 03:08:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:08:22,973 INFO L225 Difference]: With dead ends: 113524 [2022-07-14 03:08:22,973 INFO L226 Difference]: Without dead ends: 68064 [2022-07-14 03:08:23,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:08:23,089 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 1160 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3532 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 03:08:23,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 3532 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 03:08:23,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68064 states.