./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-usb-smsc75xx.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-usb-smsc75xx.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 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:02:55,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:02:55,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:02:55,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:02:55,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:02:55,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:02:55,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:02:55,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:02:55,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:02:55,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:02:55,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:02:55,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:02:55,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:02:55,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:02:55,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:02:55,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:02:55,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:02:55,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:02:55,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:02:55,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:02:55,532 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:02:55,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:02:55,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:02:55,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:02:55,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:02:55,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:02:55,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:02:55,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:02:55,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:02:55,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:02:55,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:02:55,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:02:55,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:02:55,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:02:55,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:02:55,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:02:55,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:02:55,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:02:55,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:02:55,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:02:55,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:02:55,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:02:55,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:02:55,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:02:55,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:02:55,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:02:55,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:02:55,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:02:55,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:02:55,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:02:55,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:02:55,565 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:02:55,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:02:55,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:02:55,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:02:55,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:02:55,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:02:55,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:02:55,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:02:55,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:02:55,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:02:55,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:02:55,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:02:55,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:02:55,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:02:55,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:02:55,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:02:55,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:02:55,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:02:55,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:02:55,568 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:02:55,569 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:02:55,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:02:55,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2022-07-14 03:02:55,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:02:55,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:02:55,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:02:55,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:02:55,787 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:02:55,788 INFO L432 ainManager$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-usb-smsc75xx.cil.i [2022-07-14 03:02:55,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0227c2c32/0bb31a05c87440f8b252a50ee39615ac/FLAG1bce7abb4 [2022-07-14 03:02:56,536 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:02:56,536 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-usb-smsc75xx.cil.i [2022-07-14 03:02:56,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0227c2c32/0bb31a05c87440f8b252a50ee39615ac/FLAG1bce7abb4 [2022-07-14 03:02:56,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0227c2c32/0bb31a05c87440f8b252a50ee39615ac [2022-07-14 03:02:56,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:02:56,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:02:56,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:02:56,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:02:56,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:02:56,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:02:56" (1/1) ... [2022-07-14 03:02:56,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a949eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:56, skipping insertion in model container [2022-07-14 03:02:56,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:02:56" (1/1) ... [2022-07-14 03:02:56,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:02:57,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:02:58,946 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-usb-smsc75xx.cil.i[359515,359528] [2022-07-14 03:02:58,950 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-usb-smsc75xx.cil.i[359684,359697] [2022-07-14 03:02:58,950 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-usb-smsc75xx.cil.i[359851,359864] [2022-07-14 03:02:58,951 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-usb-smsc75xx.cil.i[360019,360032] [2022-07-14 03:02:58,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:02:58,995 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:02:59,107 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) 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:1845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:314) 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 03:02:59,111 INFO L158 Benchmark]: Toolchain (without parser) took 2237.76ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 87.8MB in the end (delta: -17.7MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-07-14 03:02:59,112 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 03:02:59,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2236.00ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 87.8MB in the end (delta: -17.7MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-07-14 03:02:59,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2236.00ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 87.8MB in the end (delta: -17.7MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) 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-usb-smsc75xx.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 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:03:00,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:03:00,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:03:00,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:03:00,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:03:00,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:03:01,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:03:01,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:03:01,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:03:01,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:03:01,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:03:01,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:03:01,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:03:01,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:03:01,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:03:01,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:03:01,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:03:01,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:03:01,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:03:01,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:03:01,024 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:03:01,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:03:01,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:03:01,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:03:01,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:03:01,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:03:01,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:03:01,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:03:01,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:03:01,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:03:01,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:03:01,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:03:01,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:03:01,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:03:01,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:03:01,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:03:01,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:03:01,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:03:01,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:03:01,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:03:01,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:03:01,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:03:01,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 03:03:01,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:03:01,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:03:01,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:03:01,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:03:01,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:03:01,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:03:01,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:03:01,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:03:01,072 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:03:01,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:03:01,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:03:01,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:03:01,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:03:01,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:03:01,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 03:03:01,081 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 03:03:01,082 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 03:03:01,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:03:01,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:03:01,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:03:01,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:03:01,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:03:01,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:03:01,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:03:01,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:03:01,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:03:01,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:03:01,084 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 03:03:01,084 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 03:03:01,084 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:03:01,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:03:01,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:03:01,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 03:03:01,085 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2022-07-14 03:03:01,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:03:01,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:03:01,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:03:01,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:03:01,400 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:03:01,401 INFO L432 ainManager$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-usb-smsc75xx.cil.i [2022-07-14 03:03:01,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3999d6bb/94622ba70c254c379fd2bf5a8c60f59b/FLAGe7c5f1aee [2022-07-14 03:03:02,138 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:03:02,139 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-usb-smsc75xx.cil.i [2022-07-14 03:03:02,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3999d6bb/94622ba70c254c379fd2bf5a8c60f59b/FLAGe7c5f1aee [2022-07-14 03:03:02,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3999d6bb/94622ba70c254c379fd2bf5a8c60f59b [2022-07-14 03:03:02,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:03:02,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:03:02,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:03:02,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:03:02,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:03:02,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:03:02" (1/1) ... [2022-07-14 03:03:02,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b30a046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:02, skipping insertion in model container [2022-07-14 03:03:02,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:03:02" (1/1) ... [2022-07-14 03:03:02,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:03:02,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:03:04,316 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-usb-smsc75xx.cil.i[359515,359528] [2022-07-14 03:03:04,318 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-usb-smsc75xx.cil.i[359684,359697] [2022-07-14 03:03:04,318 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-usb-smsc75xx.cil.i[359851,359864] [2022-07-14 03:03:04,319 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-usb-smsc75xx.cil.i[360019,360032] [2022-07-14 03:03:04,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:03:04,418 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 03:03:04,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:03:04,963 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-usb-smsc75xx.cil.i[359515,359528] [2022-07-14 03:03:04,964 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-usb-smsc75xx.cil.i[359684,359697] [2022-07-14 03:03:04,964 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-usb-smsc75xx.cil.i[359851,359864] [2022-07-14 03:03:04,965 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-usb-smsc75xx.cil.i[360019,360032] [2022-07-14 03:03:04,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:03:05,017 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:03:05,473 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-usb-smsc75xx.cil.i[359515,359528] [2022-07-14 03:03:05,474 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-usb-smsc75xx.cil.i[359684,359697] [2022-07-14 03:03:05,474 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-usb-smsc75xx.cil.i[359851,359864] [2022-07-14 03:03:05,475 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-usb-smsc75xx.cil.i[360019,360032] [2022-07-14 03:03:05,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:03:05,792 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:03:05,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05 WrapperNode [2022-07-14 03:03:05,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:03:05,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:03:05,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:03:05,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:03:05,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,180 INFO L137 Inliner]: procedures = 405, calls = 3756, calls flagged for inlining = 180, calls inlined = 163, statements flattened = 7511 [2022-07-14 03:03:06,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:03:06,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:03:06,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:03:06,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:03:06,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:03:06,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:03:06,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:03:06,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:03:06,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (1/1) ... [2022-07-14 03:03:06,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:03:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:03:06,566 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 03:03:06,583 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 03:03:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg_nopm [2022-07-14 03:03:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg_nopm [2022-07-14 03:03:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:03:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:03:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-07-14 03:03:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-07-14 03:03:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:03:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:03:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2022-07-14 03:03:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2022-07-14 03:03:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:03:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:03:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-14 03:03:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-14 03:03:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enable_phy_wakeup_interrupts [2022-07-14 03:03:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enable_phy_wakeup_interrupts [2022-07-14 03:03:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_reset [2022-07-14 03:03:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_reset [2022-07-14 03:03:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_eeprom [2022-07-14 03:03:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_eeprom [2022-07-14 03:03:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_write [2022-07-14 03:03:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_write [2022-07-14 03:03:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:03:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:03:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2022-07-14 03:03:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 03:03:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 03:03:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_rx_csum_offload [2022-07-14 03:03:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_rx_csum_offload [2022-07-14 03:03:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:03:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:03:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:03:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:03:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:03:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_features [2022-07-14 03:03:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_features [2022-07-14 03:03:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 03:03:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 03:03:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 03:03:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 03:03:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-07-14 03:03:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-07-14 03:03:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:03:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:03:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-07-14 03:03:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-07-14 03:03:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read_nopm [2022-07-14 03:03:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read_nopm [2022-07-14 03:03:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 03:03:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 03:03:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2022-07-14 03:03:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_phy_wait_not_busy [2022-07-14 03:03:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_phy_wait_not_busy [2022-07-14 03:03:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-07-14 03:03:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-07-14 03:03:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write [2022-07-14 03:03:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write [2022-07-14 03:03:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2022-07-14 03:03:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:03:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:03:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:03:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 03:03:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 03:03:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 03:03:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 03:03:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:03:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:03:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:03:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 03:03:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 03:03:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:03:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 03:03:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 03:03:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 03:03:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-07-14 03:03:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-07-14 03:03:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read [2022-07-14 03:03:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read [2022-07-14 03:03:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_rx_max_frame_length [2022-07-14 03:03:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_rx_max_frame_length [2022-07-14 03:03:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 03:03:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 03:03:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 03:03:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:03:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:03:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_read_reg [2022-07-14 03:03:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_read_reg [2022-07-14 03:03:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 03:03:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-14 03:03:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-14 03:03:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 03:03:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 03:03:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_eeprom_len [2022-07-14 03:03:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_eeprom_len [2022-07-14 03:03:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 03:03:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 03:03:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 03:03:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 03:03:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 03:03:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:03:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:03:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2022-07-14 03:03:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2022-07-14 03:03:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-14 03:03:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-14 03:03:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:03:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:03:06,614 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg [2022-07-14 03:03:06,614 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg [2022-07-14 03:03:06,614 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-07-14 03:03:06,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-07-14 03:03:06,615 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 03:03:06,619 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 03:03:06,619 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write_nopm [2022-07-14 03:03:06,619 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write_nopm [2022-07-14 03:03:06,619 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_multicast [2022-07-14 03:03:06,619 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_multicast [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 03:03:06,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 03:03:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 03:03:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:03:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 03:03:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 03:03:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:03:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:03:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_read [2022-07-14 03:03:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_read [2022-07-14 03:03:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:03:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:03:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 03:03:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 03:03:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg_nopm [2022-07-14 03:03:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg_nopm [2022-07-14 03:03:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-07-14 03:03:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-07-14 03:03:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_write_reg [2022-07-14 03:03:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_write_reg [2022-07-14 03:03:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-07-14 03:03:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-07-14 03:03:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:03:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_ready [2022-07-14 03:03:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_ready [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-14 03:03:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 03:03:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_eeprom [2022-07-14 03:03:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_eeprom [2022-07-14 03:03:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:03:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:03:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2022-07-14 03:03:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_link_reset [2022-07-14 03:03:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_link_reset [2022-07-14 03:03:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_resume [2022-07-14 03:03:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_resume [2022-07-14 03:03:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_wuff [2022-07-14 03:03:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_wuff [2022-07-14 03:03:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_eeprom_confirm_not_busy [2022-07-14 03:03:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_eeprom_confirm_not_busy [2022-07-14 03:03:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~C_INT [2022-07-14 03:03:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~C_INT [2022-07-14 03:03:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:03:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:03:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend2 [2022-07-14 03:03:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend2 [2022-07-14 03:03:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend1 [2022-07-14 03:03:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend1 [2022-07-14 03:03:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg [2022-07-14 03:03:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg [2022-07-14 03:03:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2022-07-14 03:03:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2022-07-14 03:03:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:03:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:03:07,240 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:03:07,242 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:03:07,377 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:03:57,638 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 03:03:57,669 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:03:57,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:03:57,683 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 03:03:57,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:03:57 BoogieIcfgContainer [2022-07-14 03:03:57,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:03:57,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:03:57,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:03:57,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:03:57,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:03:02" (1/3) ... [2022-07-14 03:03:57,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399bb0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:03:57, skipping insertion in model container [2022-07-14 03:03:57,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:03:05" (2/3) ... [2022-07-14 03:03:57,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399bb0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:03:57, skipping insertion in model container [2022-07-14 03:03:57,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:03:57" (3/3) ... [2022-07-14 03:03:57,691 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2022-07-14 03:03:57,701 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:03:57,701 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 03:03:57,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:03:57,767 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@1f968cee, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@468341f9 [2022-07-14 03:03:57,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 03:03:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 1730 states, 1252 states have (on average 1.3594249201277955) internal successors, (1702), 1255 states have internal predecessors, (1702), 403 states have call successors, (403), 73 states have call predecessors, (403), 72 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) [2022-07-14 03:03:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-14 03:03:57,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:57,806 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:57,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:03:57,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash -747547048, now seen corresponding path program 1 times [2022-07-14 03:03:57,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:57,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365575959] [2022-07-14 03:03:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:57,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:57,832 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 03:03:57,835 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 03:03:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:58,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:03:58,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2022-07-14 03:03:59,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:03:59,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:59,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365575959] [2022-07-14 03:03:59,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365575959] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:03:59,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:03:59,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:03:59,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159616817] [2022-07-14 03:03:59,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:59,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:03:59,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:59,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:03:59,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:03:59,032 INFO L87 Difference]: Start difference. First operand has 1730 states, 1252 states have (on average 1.3594249201277955) internal successors, (1702), 1255 states have internal predecessors, (1702), 403 states have call successors, (403), 73 states have call predecessors, (403), 72 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-14 03:03:59,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:03:59,508 INFO L93 Difference]: Finished difference Result 5006 states and 7625 transitions. [2022-07-14 03:03:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:03:59,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 217 [2022-07-14 03:03:59,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:03:59,535 INFO L225 Difference]: With dead ends: 5006 [2022-07-14 03:03:59,535 INFO L226 Difference]: Without dead ends: 3304 [2022-07-14 03:03:59,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 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 03:03:59,550 INFO L413 NwaCegarLoop]: 2842 mSDtfsCounter, 2317 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 5268 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:03:59,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 5268 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:03:59,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3304 states. [2022-07-14 03:03:59,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3304 to 3300. [2022-07-14 03:03:59,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2416 states have (on average 1.3555463576158941) internal successors, (3275), 2421 states have internal predecessors, (3275), 741 states have call successors, (741), 141 states have call predecessors, (741), 140 states have return successors, (737), 737 states have call predecessors, (737), 737 states have call successors, (737) [2022-07-14 03:03:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4753 transitions. [2022-07-14 03:03:59,703 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4753 transitions. Word has length 217 [2022-07-14 03:03:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:59,704 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4753 transitions. [2022-07-14 03:03:59,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-14 03:03:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4753 transitions. [2022-07-14 03:03:59,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-14 03:03:59,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:59,709 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:59,738 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 03:03:59,923 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 03:03:59,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:03:59,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash 379538310, now seen corresponding path program 1 times [2022-07-14 03:03:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941659270] [2022-07-14 03:03:59,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:59,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:59,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:59,934 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 03:03:59,936 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 03:04:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:01,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:01,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2022-07-14 03:04:01,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:01,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:01,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941659270] [2022-07-14 03:04:01,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941659270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:01,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:01,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:01,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46315330] [2022-07-14 03:04:01,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:01,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:01,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:01,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:01,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:01,123 INFO L87 Difference]: Start difference. First operand 3300 states and 4753 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-14 03:04:01,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:01,593 INFO L93 Difference]: Finished difference Result 7817 states and 11269 transitions. [2022-07-14 03:04:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:01,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 228 [2022-07-14 03:04:01,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:01,625 INFO L225 Difference]: With dead ends: 7817 [2022-07-14 03:04:01,625 INFO L226 Difference]: Without dead ends: 4556 [2022-07-14 03:04:01,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 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 03:04:01,640 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 2091 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:01,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 5331 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:04:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2022-07-14 03:04:01,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 4529. [2022-07-14 03:04:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 3275 states have (on average 1.3578625954198473) internal successors, (4447), 3285 states have internal predecessors, (4447), 1042 states have call successors, (1042), 210 states have call predecessors, (1042), 209 states have return successors, (1038), 1033 states have call predecessors, (1038), 1038 states have call successors, (1038) [2022-07-14 03:04:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 6527 transitions. [2022-07-14 03:04:01,790 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 6527 transitions. Word has length 228 [2022-07-14 03:04:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:01,792 INFO L495 AbstractCegarLoop]: Abstraction has 4529 states and 6527 transitions. [2022-07-14 03:04:01,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-14 03:04:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 6527 transitions. [2022-07-14 03:04:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-14 03:04:01,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:01,798 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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 03:04:01,826 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 03:04:02,003 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 03:04:02,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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 03:04:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1569969785, now seen corresponding path program 1 times [2022-07-14 03:04:02,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:02,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859195823] [2022-07-14 03:04:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:02,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:02,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:02,020 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 03:04:02,042 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 03:04:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:03,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:03,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2022-07-14 03:04:03,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:03,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859195823] [2022-07-14 03:04:03,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859195823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:03,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:03,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621079581] [2022-07-14 03:04:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:03,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:03,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:03,213 INFO L87 Difference]: Start difference. First operand 4529 states and 6527 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-14 03:04:03,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:03,653 INFO L93 Difference]: Finished difference Result 10620 states and 15308 transitions. [2022-07-14 03:04:03,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:03,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 276 [2022-07-14 03:04:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:03,699 INFO L225 Difference]: With dead ends: 10620 [2022-07-14 03:04:03,699 INFO L226 Difference]: Without dead ends: 7492 [2022-07-14 03:04:03,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 03:04:03,714 INFO L413 NwaCegarLoop]: 4745 mSDtfsCounter, 2278 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 7179 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:03,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 7179 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:04:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7492 states. [2022-07-14 03:04:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7492 to 7488. [2022-07-14 03:04:03,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7488 states, 5440 states have (on average 1.3597426470588236) internal successors, (7397), 5450 states have internal predecessors, (7397), 1700 states have call successors, (1700), 346 states have call predecessors, (1700), 345 states have return successors, (1696), 1691 states have call predecessors, (1696), 1696 states have call successors, (1696) [2022-07-14 03:04:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7488 states to 7488 states and 10793 transitions. [2022-07-14 03:04:03,944 INFO L78 Accepts]: Start accepts. Automaton has 7488 states and 10793 transitions. Word has length 276 [2022-07-14 03:04:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:03,945 INFO L495 AbstractCegarLoop]: Abstraction has 7488 states and 10793 transitions. [2022-07-14 03:04:03,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-14 03:04:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 7488 states and 10793 transitions. [2022-07-14 03:04:03,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-14 03:04:03,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:03,951 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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 03:04:03,981 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 03:04:04,167 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 03:04:04,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:04:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -801769477, now seen corresponding path program 1 times [2022-07-14 03:04:04,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:04,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407687034] [2022-07-14 03:04:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:04,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:04,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:04,188 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 03:04:04,229 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 03:04:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:05,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:05,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2022-07-14 03:04:06,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:06,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:06,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407687034] [2022-07-14 03:04:06,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407687034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:06,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:06,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:04:06,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737393656] [2022-07-14 03:04:06,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:06,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:06,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:06,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:06,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:04:06,711 INFO L87 Difference]: Start difference. First operand 7488 states and 10793 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 03:04:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:06,976 INFO L93 Difference]: Finished difference Result 7494 states and 10798 transitions. [2022-07-14 03:04:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:04:06,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 276 [2022-07-14 03:04:06,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:07,022 INFO L225 Difference]: With dead ends: 7494 [2022-07-14 03:04:07,023 INFO L226 Difference]: Without dead ends: 7492 [2022-07-14 03:04:07,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:07,031 INFO L413 NwaCegarLoop]: 2464 mSDtfsCounter, 2359 mSDsluCounter, 4916 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 7380 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:07,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 7380 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:04:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7492 states. [2022-07-14 03:04:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7492 to 7492. [2022-07-14 03:04:07,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7492 states, 5443 states have (on average 1.3595443689142017) internal successors, (7400), 5453 states have internal predecessors, (7400), 1700 states have call successors, (1700), 347 states have call predecessors, (1700), 346 states have return successors, (1696), 1691 states have call predecessors, (1696), 1696 states have call successors, (1696) [2022-07-14 03:04:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7492 states to 7492 states and 10796 transitions. [2022-07-14 03:04:07,276 INFO L78 Accepts]: Start accepts. Automaton has 7492 states and 10796 transitions. Word has length 276 [2022-07-14 03:04:07,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:07,277 INFO L495 AbstractCegarLoop]: Abstraction has 7492 states and 10796 transitions. [2022-07-14 03:04:07,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 03:04:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7492 states and 10796 transitions. [2022-07-14 03:04:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-14 03:04:07,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:07,282 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:07,309 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 03:04:07,491 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 03:04:07,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:04:07,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:07,492 INFO L85 PathProgramCache]: Analyzing trace with hash -66650535, now seen corresponding path program 1 times [2022-07-14 03:04:07,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:07,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468345989] [2022-07-14 03:04:07,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:07,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:07,508 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 03:04:07,536 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 03:04:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:08,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1950 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:08,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:09,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2022-07-14 03:04:09,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2022-07-14 03:04:10,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:10,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468345989] [2022-07-14 03:04:10,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468345989] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:10,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:10,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213014825] [2022-07-14 03:04:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:10,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:10,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:10,426 INFO L87 Difference]: Start difference. First operand 7492 states and 10796 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:10,832 INFO L93 Difference]: Finished difference Result 7498 states and 10801 transitions. [2022-07-14 03:04:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 281 [2022-07-14 03:04:10,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:10,875 INFO L225 Difference]: With dead ends: 7498 [2022-07-14 03:04:10,875 INFO L226 Difference]: Without dead ends: 7496 [2022-07-14 03:04:10,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:10,880 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:10,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:04:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2022-07-14 03:04:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7496. [2022-07-14 03:04:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 5446 states have (on average 1.3593463092177744) internal successors, (7403), 5456 states have internal predecessors, (7403), 1700 states have call successors, (1700), 348 states have call predecessors, (1700), 347 states have return successors, (1696), 1691 states have call predecessors, (1696), 1696 states have call successors, (1696) [2022-07-14 03:04:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 10799 transitions. [2022-07-14 03:04:11,155 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 10799 transitions. Word has length 281 [2022-07-14 03:04:11,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:11,156 INFO L495 AbstractCegarLoop]: Abstraction has 7496 states and 10799 transitions. [2022-07-14 03:04:11,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:11,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 10799 transitions. [2022-07-14 03:04:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-14 03:04:11,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:11,163 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:11,189 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 03:04:11,387 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 03:04:11,387 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 03:04:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1752062587, now seen corresponding path program 1 times [2022-07-14 03:04:11,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:11,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290342338] [2022-07-14 03:04:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:11,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:11,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:11,391 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 03:04:11,428 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 03:04:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:12,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:12,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1490 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2022-07-14 03:04:13,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1490 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2022-07-14 03:04:13,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:13,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290342338] [2022-07-14 03:04:13,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290342338] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:13,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:13,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:13,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300229110] [2022-07-14 03:04:13,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:13,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:13,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:13,932 INFO L87 Difference]: Start difference. First operand 7496 states and 10799 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:14,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:14,157 INFO L93 Difference]: Finished difference Result 7502 states and 10804 transitions. [2022-07-14 03:04:14,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 286 [2022-07-14 03:04:14,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:14,185 INFO L225 Difference]: With dead ends: 7502 [2022-07-14 03:04:14,186 INFO L226 Difference]: Without dead ends: 7500 [2022-07-14 03:04:14,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:14,192 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:14,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:04:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2022-07-14 03:04:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 7500. [2022-07-14 03:04:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7500 states, 5449 states have (on average 1.3591484676087355) internal successors, (7406), 5459 states have internal predecessors, (7406), 1700 states have call successors, (1700), 349 states have call predecessors, (1700), 348 states have return successors, (1696), 1691 states have call predecessors, (1696), 1696 states have call successors, (1696) [2022-07-14 03:04:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 10802 transitions. [2022-07-14 03:04:14,477 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 10802 transitions. Word has length 286 [2022-07-14 03:04:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:14,477 INFO L495 AbstractCegarLoop]: Abstraction has 7500 states and 10802 transitions. [2022-07-14 03:04:14,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 10802 transitions. [2022-07-14 03:04:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-14 03:04:14,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:14,485 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:14,514 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 03:04:14,708 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 03:04:14,708 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 03:04:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:14,709 INFO L85 PathProgramCache]: Analyzing trace with hash -906189480, now seen corresponding path program 1 times [2022-07-14 03:04:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:14,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992972726] [2022-07-14 03:04:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:14,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:14,712 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 03:04:14,751 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 03:04:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:15,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 2006 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:04:15,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2022-07-14 03:04:15,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:04:15,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:15,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992972726] [2022-07-14 03:04:15,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992972726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:04:15,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:04:15,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:04:15,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729960111] [2022-07-14 03:04:15,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:15,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:04:15,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:15,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:04:15,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:04:15,830 INFO L87 Difference]: Start difference. First operand 7500 states and 10802 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:04:16,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:16,435 INFO L93 Difference]: Finished difference Result 16594 states and 23899 transitions. [2022-07-14 03:04:16,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:04:16,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 300 [2022-07-14 03:04:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:16,472 INFO L225 Difference]: With dead ends: 16594 [2022-07-14 03:04:16,472 INFO L226 Difference]: Without dead ends: 10495 [2022-07-14 03:04:16,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 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 03:04:16,494 INFO L413 NwaCegarLoop]: 4757 mSDtfsCounter, 2311 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 7193 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:16,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 7193 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:04:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2022-07-14 03:04:16,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 10461. [2022-07-14 03:04:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 7616 states have (on average 1.360031512605042) internal successors, (10358), 7626 states have internal predecessors, (10358), 2358 states have call successors, (2358), 485 states have call predecessors, (2358), 484 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 15070 transitions. [2022-07-14 03:04:16,791 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 15070 transitions. Word has length 300 [2022-07-14 03:04:16,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:16,793 INFO L495 AbstractCegarLoop]: Abstraction has 10461 states and 15070 transitions. [2022-07-14 03:04:16,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:04:16,793 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 15070 transitions. [2022-07-14 03:04:16,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-14 03:04:16,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:16,799 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:16,825 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 03:04:17,023 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 03:04:17,023 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 03:04:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash -597533863, now seen corresponding path program 1 times [2022-07-14 03:04:17,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381497814] [2022-07-14 03:04:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:17,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:17,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:17,026 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 03:04:17,028 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 03:04:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:18,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:18,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2022-07-14 03:04:19,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2022-07-14 03:04:19,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:19,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381497814] [2022-07-14 03:04:19,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381497814] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:19,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:19,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021170551] [2022-07-14 03:04:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:19,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:19,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:19,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:19,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:19,339 INFO L87 Difference]: Start difference. First operand 10461 states and 15070 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:19,717 INFO L93 Difference]: Finished difference Result 10467 states and 15075 transitions. [2022-07-14 03:04:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:19,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 291 [2022-07-14 03:04:19,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:19,751 INFO L225 Difference]: With dead ends: 10467 [2022-07-14 03:04:19,751 INFO L226 Difference]: Without dead ends: 10465 [2022-07-14 03:04:19,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:19,757 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:19,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:04:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10465 states. [2022-07-14 03:04:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10465 to 10465. [2022-07-14 03:04:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10465 states, 7619 states have (on average 1.3598897493109332) internal successors, (10361), 7629 states have internal predecessors, (10361), 2358 states have call successors, (2358), 486 states have call predecessors, (2358), 485 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:20,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10465 states to 10465 states and 15073 transitions. [2022-07-14 03:04:20,074 INFO L78 Accepts]: Start accepts. Automaton has 10465 states and 15073 transitions. Word has length 291 [2022-07-14 03:04:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:20,074 INFO L495 AbstractCegarLoop]: Abstraction has 10465 states and 15073 transitions. [2022-07-14 03:04:20,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10465 states and 15073 transitions. [2022-07-14 03:04:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-14 03:04:20,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:20,084 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:20,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:20,311 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 03:04:20,311 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 03:04:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1004489979, now seen corresponding path program 1 times [2022-07-14 03:04:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:20,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452884051] [2022-07-14 03:04:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:20,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:20,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:20,315 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 03:04:20,372 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 03:04:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:21,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:21,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-07-14 03:04:22,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-07-14 03:04:22,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:22,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452884051] [2022-07-14 03:04:22,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452884051] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:22,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:22,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:22,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655195693] [2022-07-14 03:04:22,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:22,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:22,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:22,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:22,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:22,788 INFO L87 Difference]: Start difference. First operand 10465 states and 15073 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:23,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:23,118 INFO L93 Difference]: Finished difference Result 10471 states and 15078 transitions. [2022-07-14 03:04:23,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:23,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 296 [2022-07-14 03:04:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:23,166 INFO L225 Difference]: With dead ends: 10471 [2022-07-14 03:04:23,166 INFO L226 Difference]: Without dead ends: 10469 [2022-07-14 03:04:23,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:23,176 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:23,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2392 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:04:23,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10469 states. [2022-07-14 03:04:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10469 to 10469. [2022-07-14 03:04:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 7622 states have (on average 1.3597480976121752) internal successors, (10364), 7632 states have internal predecessors, (10364), 2358 states have call successors, (2358), 487 states have call predecessors, (2358), 486 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 15076 transitions. [2022-07-14 03:04:23,505 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 15076 transitions. Word has length 296 [2022-07-14 03:04:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:23,506 INFO L495 AbstractCegarLoop]: Abstraction has 10469 states and 15076 transitions. [2022-07-14 03:04:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 15076 transitions. [2022-07-14 03:04:23,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-14 03:04:23,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:23,513 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:23,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:23,786 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 03:04:23,786 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 03:04:23,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:23,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2120165465, now seen corresponding path program 1 times [2022-07-14 03:04:23,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:23,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59373578] [2022-07-14 03:04:23,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:23,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:23,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:23,793 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 03:04:23,794 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 03:04:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:24,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1978 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:24,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2022-07-14 03:04:26,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2022-07-14 03:04:26,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:26,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59373578] [2022-07-14 03:04:26,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59373578] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:26,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:26,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:26,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91388622] [2022-07-14 03:04:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:26,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:26,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:26,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:26,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:26,816 INFO L87 Difference]: Start difference. First operand 10469 states and 15076 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:27,188 INFO L93 Difference]: Finished difference Result 10475 states and 15081 transitions. [2022-07-14 03:04:27,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 301 [2022-07-14 03:04:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:27,224 INFO L225 Difference]: With dead ends: 10475 [2022-07-14 03:04:27,224 INFO L226 Difference]: Without dead ends: 10473 [2022-07-14 03:04:27,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:27,231 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2391 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:27,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2391 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:04:27,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10473 states. [2022-07-14 03:04:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10473 to 10473. [2022-07-14 03:04:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10473 states, 7625 states have (on average 1.3596065573770493) internal successors, (10367), 7635 states have internal predecessors, (10367), 2358 states have call successors, (2358), 488 states have call predecessors, (2358), 487 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:27,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10473 states to 10473 states and 15079 transitions. [2022-07-14 03:04:27,619 INFO L78 Accepts]: Start accepts. Automaton has 10473 states and 15079 transitions. Word has length 301 [2022-07-14 03:04:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:27,619 INFO L495 AbstractCegarLoop]: Abstraction has 10473 states and 15079 transitions. [2022-07-14 03:04:27,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 03:04:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 10473 states and 15079 transitions. [2022-07-14 03:04:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-14 03:04:27,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:27,628 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:27,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 03:04:27,843 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 03:04:27,843 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 03:04:27,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:27,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1226100603, now seen corresponding path program 1 times [2022-07-14 03:04:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:27,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544539085] [2022-07-14 03:04:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:27,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:27,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:27,848 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 03:04:27,850 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 03:04:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:28,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:28,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2022-07-14 03:04:30,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2022-07-14 03:04:30,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:30,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544539085] [2022-07-14 03:04:30,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544539085] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:30,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:30,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777752274] [2022-07-14 03:04:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:30,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:30,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:30,692 INFO L87 Difference]: Start difference. First operand 10473 states and 15079 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 03:04:31,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:31,066 INFO L93 Difference]: Finished difference Result 10479 states and 15084 transitions. [2022-07-14 03:04:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 306 [2022-07-14 03:04:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:31,145 INFO L225 Difference]: With dead ends: 10479 [2022-07-14 03:04:31,145 INFO L226 Difference]: Without dead ends: 10477 [2022-07-14 03:04:31,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:31,154 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2390 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:31,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2390 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:04:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10477 states. [2022-07-14 03:04:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10477 to 10477. [2022-07-14 03:04:31,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10477 states, 7628 states have (on average 1.359465128474043) internal successors, (10370), 7638 states have internal predecessors, (10370), 2358 states have call successors, (2358), 489 states have call predecessors, (2358), 488 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10477 states to 10477 states and 15082 transitions. [2022-07-14 03:04:31,929 INFO L78 Accepts]: Start accepts. Automaton has 10477 states and 15082 transitions. Word has length 306 [2022-07-14 03:04:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:31,930 INFO L495 AbstractCegarLoop]: Abstraction has 10477 states and 15082 transitions. [2022-07-14 03:04:31,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 03:04:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 10477 states and 15082 transitions. [2022-07-14 03:04:31,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-14 03:04:31,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:31,955 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:31,988 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 03:04:32,175 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 03:04:32,176 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 03:04:32,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash 452027737, now seen corresponding path program 1 times [2022-07-14 03:04:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076876867] [2022-07-14 03:04:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:32,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:32,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:32,190 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 03:04:32,228 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 03:04:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:33,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1992 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:33,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2022-07-14 03:04:33,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2022-07-14 03:04:34,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:34,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076876867] [2022-07-14 03:04:34,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076876867] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:34,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:34,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709652133] [2022-07-14 03:04:34,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:34,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:34,223 INFO L87 Difference]: Start difference. First operand 10477 states and 15082 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 03:04:34,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:34,605 INFO L93 Difference]: Finished difference Result 10483 states and 15087 transitions. [2022-07-14 03:04:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:34,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 311 [2022-07-14 03:04:34,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:34,699 INFO L225 Difference]: With dead ends: 10483 [2022-07-14 03:04:34,699 INFO L226 Difference]: Without dead ends: 10481 [2022-07-14 03:04:34,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:34,706 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:34,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:04:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10481 states. [2022-07-14 03:04:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10481 to 10481. [2022-07-14 03:04:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10481 states, 7631 states have (on average 1.3593238107718517) internal successors, (10373), 7641 states have internal predecessors, (10373), 2358 states have call successors, (2358), 490 states have call predecessors, (2358), 489 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10481 states to 10481 states and 15085 transitions. [2022-07-14 03:04:35,110 INFO L78 Accepts]: Start accepts. Automaton has 10481 states and 15085 transitions. Word has length 311 [2022-07-14 03:04:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:35,110 INFO L495 AbstractCegarLoop]: Abstraction has 10481 states and 15085 transitions. [2022-07-14 03:04:35,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-14 03:04:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10481 states and 15085 transitions. [2022-07-14 03:04:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-14 03:04:35,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:35,120 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:35,150 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 03:04:35,343 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 03:04:35,343 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 03:04:35,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:35,344 INFO L85 PathProgramCache]: Analyzing trace with hash -811933189, now seen corresponding path program 1 times [2022-07-14 03:04:35,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:35,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226410236] [2022-07-14 03:04:35,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:35,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:35,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:35,356 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 03:04:35,396 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 03:04:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:36,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:36,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-07-14 03:04:37,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-07-14 03:04:37,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:37,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226410236] [2022-07-14 03:04:37,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226410236] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:37,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:37,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:37,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936058432] [2022-07-14 03:04:37,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:37,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:37,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:37,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:37,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:37,984 INFO L87 Difference]: Start difference. First operand 10481 states and 15085 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 03:04:38,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:38,394 INFO L93 Difference]: Finished difference Result 10487 states and 15090 transitions. [2022-07-14 03:04:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 316 [2022-07-14 03:04:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:38,426 INFO L225 Difference]: With dead ends: 10487 [2022-07-14 03:04:38,426 INFO L226 Difference]: Without dead ends: 10485 [2022-07-14 03:04:38,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:38,432 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:38,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:04:38,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10485 states. [2022-07-14 03:04:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10485 to 10485. [2022-07-14 03:04:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10485 states, 7634 states have (on average 1.3591826041393764) internal successors, (10376), 7644 states have internal predecessors, (10376), 2358 states have call successors, (2358), 491 states have call predecessors, (2358), 490 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10485 states to 10485 states and 15088 transitions. [2022-07-14 03:04:38,753 INFO L78 Accepts]: Start accepts. Automaton has 10485 states and 15088 transitions. Word has length 316 [2022-07-14 03:04:38,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:38,754 INFO L495 AbstractCegarLoop]: Abstraction has 10485 states and 15088 transitions. [2022-07-14 03:04:38,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-14 03:04:38,754 INFO L276 IsEmpty]: Start isEmpty. Operand 10485 states and 15088 transitions. [2022-07-14 03:04:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-14 03:04:38,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:38,763 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:38,792 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 03:04:38,979 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 03:04:38,979 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 03:04:38,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:38,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1242370649, now seen corresponding path program 1 times [2022-07-14 03:04:38,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:38,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630238465] [2022-07-14 03:04:38,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:38,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:38,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:38,988 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 03:04:38,989 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 03:04:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:40,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 2006 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:04:40,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1644 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2022-07-14 03:04:41,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1644 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2022-07-14 03:04:42,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:42,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630238465] [2022-07-14 03:04:42,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630238465] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:04:42,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:04:42,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:04:42,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925406012] [2022-07-14 03:04:42,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:04:42,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:04:42,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:42,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:04:42,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:04:42,226 INFO L87 Difference]: Start difference. First operand 10485 states and 15088 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-14 03:04:42,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:04:42,711 INFO L93 Difference]: Finished difference Result 10540 states and 15128 transitions. [2022-07-14 03:04:42,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:04:42,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 321 [2022-07-14 03:04:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:04:42,752 INFO L225 Difference]: With dead ends: 10540 [2022-07-14 03:04:42,752 INFO L226 Difference]: Without dead ends: 10538 [2022-07-14 03:04:42,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:04:42,761 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2311 mSDsluCounter, 4992 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 7459 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:04:42,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 7459 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:04:42,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10538 states. [2022-07-14 03:04:43,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10538 to 10538. [2022-07-14 03:04:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10538 states, 7672 states have (on average 1.3574035453597497) internal successors, (10414), 7682 states have internal predecessors, (10414), 2358 states have call successors, (2358), 506 states have call predecessors, (2358), 505 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2022-07-14 03:04:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10538 states to 10538 states and 15126 transitions. [2022-07-14 03:04:43,192 INFO L78 Accepts]: Start accepts. Automaton has 10538 states and 15126 transitions. Word has length 321 [2022-07-14 03:04:43,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:04:43,192 INFO L495 AbstractCegarLoop]: Abstraction has 10538 states and 15126 transitions. [2022-07-14 03:04:43,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-14 03:04:43,193 INFO L276 IsEmpty]: Start isEmpty. Operand 10538 states and 15126 transitions. [2022-07-14 03:04:43,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-07-14 03:04:43,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:04:43,212 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:04:43,256 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 03:04:43,439 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 03:04:43,440 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 03:04:43,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:04:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash 234180815, now seen corresponding path program 1 times [2022-07-14 03:04:43,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:04:43,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543901693] [2022-07-14 03:04:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:04:43,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:04:43,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:04:43,443 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 03:04:43,446 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 03:04:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:04:44,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 2094 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 03:04:44,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:04:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 311 proven. 3 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2022-07-14 03:04:45,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:04:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 53 proven. 18 refuted. 0 times theorem prover too weak. 1788 trivial. 0 not checked. [2022-07-14 03:04:45,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:04:45,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543901693] [2022-07-14 03:04:45,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543901693] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:04:45,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:04:45,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-14 03:04:45,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820374643] [2022-07-14 03:04:45,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:04:45,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 03:04:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:04:45,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 03:04:45,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-14 03:04:45,690 INFO L87 Difference]: Start difference. First operand 10538 states and 15126 transitions. Second operand has 22 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 6 states have call successors, (63), 3 states have call predecessors, (63), 8 states have return successors, (62), 7 states have call predecessors, (62), 6 states have call successors, (62) [2022-07-14 03:05:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:02,364 INFO L93 Difference]: Finished difference Result 25740 states and 36905 transitions. [2022-07-14 03:05:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-14 03:05:02,365 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 6 states have call successors, (63), 3 states have call predecessors, (63), 8 states have return successors, (62), 7 states have call predecessors, (62), 6 states have call successors, (62) Word has length 362 [2022-07-14 03:05:02,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:02,430 INFO L225 Difference]: With dead ends: 25740 [2022-07-14 03:05:02,430 INFO L226 Difference]: Without dead ends: 16592 [2022-07-14 03:05:02,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-14 03:05:02,469 INFO L413 NwaCegarLoop]: 4714 mSDtfsCounter, 7758 mSDsluCounter, 61228 mSDsCounter, 0 mSdLazyCounter, 5508 mSolverCounterSat, 1209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7943 SdHoareTripleChecker+Valid, 65942 SdHoareTripleChecker+Invalid, 6717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1209 IncrementalHoareTripleChecker+Valid, 5508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:02,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7943 Valid, 65942 Invalid, 6717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1209 Valid, 5508 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2022-07-14 03:05:02,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16592 states. [2022-07-14 03:05:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16592 to 13539. [2022-07-14 03:05:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 9863 states have (on average 1.3575991077765386) internal successors, (13390), 9873 states have internal predecessors, (13390), 3022 states have call successors, (3022), 652 states have call predecessors, (3022), 651 states have return successors, (3018), 3013 states have call predecessors, (3018), 3018 states have call successors, (3018) [2022-07-14 03:05:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 19430 transitions. [2022-07-14 03:05:03,129 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 19430 transitions. Word has length 362 [2022-07-14 03:05:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:03,130 INFO L495 AbstractCegarLoop]: Abstraction has 13539 states and 19430 transitions. [2022-07-14 03:05:03,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 6 states have call successors, (63), 3 states have call predecessors, (63), 8 states have return successors, (62), 7 states have call predecessors, (62), 6 states have call successors, (62) [2022-07-14 03:05:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 19430 transitions. [2022-07-14 03:05:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-07-14 03:05:03,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:03,140 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:03,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:03,356 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 03:05:03,356 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 03:05:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash 268272763, now seen corresponding path program 1 times [2022-07-14 03:05:03,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:03,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346411280] [2022-07-14 03:05:03,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:03,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:03,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:03,360 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 03:05:03,423 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 03:05:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:04,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 2013 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:04,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 1662 trivial. 0 not checked. [2022-07-14 03:05:05,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1662 trivial. 0 not checked. [2022-07-14 03:05:06,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:06,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346411280] [2022-07-14 03:05:06,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346411280] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:06,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:06,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:06,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151742067] [2022-07-14 03:05:06,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:06,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:06,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:06,285 INFO L87 Difference]: Start difference. First operand 13539 states and 19430 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-14 03:05:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:06,918 INFO L93 Difference]: Finished difference Result 13545 states and 19435 transitions. [2022-07-14 03:05:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:06,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 326 [2022-07-14 03:05:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:06,966 INFO L225 Difference]: With dead ends: 13545 [2022-07-14 03:05:06,966 INFO L226 Difference]: Without dead ends: 13541 [2022-07-14 03:05:06,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:06,976 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2385 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 7382 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:06,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 7382 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:05:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2022-07-14 03:05:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 13541. [2022-07-14 03:05:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13541 states, 9865 states have (on average 1.3574252407501266) internal successors, (13391), 9874 states have internal predecessors, (13391), 3022 states have call successors, (3022), 653 states have call predecessors, (3022), 651 states have return successors, (3018), 3013 states have call predecessors, (3018), 3018 states have call successors, (3018) [2022-07-14 03:05:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 19431 transitions. [2022-07-14 03:05:07,549 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 19431 transitions. Word has length 326 [2022-07-14 03:05:07,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:07,550 INFO L495 AbstractCegarLoop]: Abstraction has 13541 states and 19431 transitions. [2022-07-14 03:05:07,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-14 03:05:07,550 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 19431 transitions. [2022-07-14 03:05:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-14 03:05:07,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:07,562 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:07,620 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 03:05:07,787 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 03:05:07,788 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 03:05:07,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:07,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1118187353, now seen corresponding path program 1 times [2022-07-14 03:05:07,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:07,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407740551] [2022-07-14 03:05:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:07,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:07,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:07,791 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 03:05:07,793 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 03:05:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:08,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:08,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2022-07-14 03:05:10,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:05:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2022-07-14 03:05:11,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:11,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407740551] [2022-07-14 03:05:11,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407740551] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:05:11,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:05:11,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:05:11,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450731658] [2022-07-14 03:05:11,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:11,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:11,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:11,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:11,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:05:11,085 INFO L87 Difference]: Start difference. First operand 13541 states and 19431 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-14 03:05:11,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:11,775 INFO L93 Difference]: Finished difference Result 13541 states and 19431 transitions. [2022-07-14 03:05:11,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:05:11,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 331 [2022-07-14 03:05:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:11,837 INFO L225 Difference]: With dead ends: 13541 [2022-07-14 03:05:11,837 INFO L226 Difference]: Without dead ends: 13428 [2022-07-14 03:05:11,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:05:11,848 INFO L413 NwaCegarLoop]: 2465 mSDtfsCounter, 2381 mSDsluCounter, 4914 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 7379 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:11,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 7379 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:05:11,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2022-07-14 03:05:12,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 10471. [2022-07-14 03:05:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10471 states, 7634 states have (on average 1.3582656536547026) internal successors, (10369), 7637 states have internal predecessors, (10369), 2337 states have call successors, (2337), 498 states have call predecessors, (2337), 498 states have return successors, (2337), 2335 states have call predecessors, (2337), 2337 states have call successors, (2337) [2022-07-14 03:05:12,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10471 states to 10471 states and 15043 transitions. [2022-07-14 03:05:12,329 INFO L78 Accepts]: Start accepts. Automaton has 10471 states and 15043 transitions. Word has length 331 [2022-07-14 03:05:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:12,331 INFO L495 AbstractCegarLoop]: Abstraction has 10471 states and 15043 transitions. [2022-07-14 03:05:12,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-14 03:05:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 10471 states and 15043 transitions. [2022-07-14 03:05:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-14 03:05:12,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:12,377 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 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, 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 03:05:12,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:12,601 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 03:05:12,601 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 03:05:12,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1541849949, now seen corresponding path program 1 times [2022-07-14 03:05:12,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:12,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437220022] [2022-07-14 03:05:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:12,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:12,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:12,605 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 03:05:12,607 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 03:05:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:13,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:05:13,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-07-14 03:05:13,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:13,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:13,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437220022] [2022-07-14 03:05:13,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437220022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:13,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:13,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:05:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561338295] [2022-07-14 03:05:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:13,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:05:13,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:13,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:05:13,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:05:13,917 INFO L87 Difference]: Start difference. First operand 10471 states and 15043 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:05:14,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:14,683 INFO L93 Difference]: Finished difference Result 22501 states and 32321 transitions. [2022-07-14 03:05:14,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:05:14,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 342 [2022-07-14 03:05:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:14,740 INFO L225 Difference]: With dead ends: 22501 [2022-07-14 03:05:14,740 INFO L226 Difference]: Without dead ends: 13432 [2022-07-14 03:05:14,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 340 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 03:05:14,773 INFO L413 NwaCegarLoop]: 4640 mSDtfsCounter, 2272 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 7027 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:14,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 7027 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:05:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13432 states. [2022-07-14 03:05:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13432 to 10471. [2022-07-14 03:05:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10471 states, 7634 states have (on average 1.3582656536547026) internal successors, (10369), 7637 states have internal predecessors, (10369), 2337 states have call successors, (2337), 498 states have call predecessors, (2337), 498 states have return successors, (2337), 2335 states have call predecessors, (2337), 2337 states have call successors, (2337) [2022-07-14 03:05:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10471 states to 10471 states and 15043 transitions. [2022-07-14 03:05:15,279 INFO L78 Accepts]: Start accepts. Automaton has 10471 states and 15043 transitions. Word has length 342 [2022-07-14 03:05:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:15,280 INFO L495 AbstractCegarLoop]: Abstraction has 10471 states and 15043 transitions. [2022-07-14 03:05:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:05:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10471 states and 15043 transitions. [2022-07-14 03:05:15,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-14 03:05:15,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:15,292 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 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, 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 03:05:15,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:15,507 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 03:05:15,507 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 03:05:15,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:15,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2102549727, now seen corresponding path program 1 times [2022-07-14 03:05:15,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:15,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432723584] [2022-07-14 03:05:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:15,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:15,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:15,523 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 03:05:15,560 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 03:05:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:16,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:05:16,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-07-14 03:05:16,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:16,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:16,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432723584] [2022-07-14 03:05:16,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432723584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:16,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:16,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:05:16,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946409649] [2022-07-14 03:05:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:16,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:05:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:16,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:05:16,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:05:16,761 INFO L87 Difference]: Start difference. First operand 10471 states and 15043 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:05:17,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:17,563 INFO L93 Difference]: Finished difference Result 22509 states and 32337 transitions. [2022-07-14 03:05:17,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:05:17,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 342 [2022-07-14 03:05:17,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:17,619 INFO L225 Difference]: With dead ends: 22509 [2022-07-14 03:05:17,620 INFO L226 Difference]: Without dead ends: 13446 [2022-07-14 03:05:17,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 340 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 03:05:17,651 INFO L413 NwaCegarLoop]: 4691 mSDtfsCounter, 2278 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:17,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 7074 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:05:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13446 states. [2022-07-14 03:05:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13446 to 13442. [2022-07-14 03:05:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13442 states, 9807 states have (on average 1.3589272968287958) internal successors, (13327), 9810 states have internal predecessors, (13327), 2995 states have call successors, (2995), 638 states have call predecessors, (2995), 638 states have return successors, (2995), 2993 states have call predecessors, (2995), 2995 states have call successors, (2995) [2022-07-14 03:05:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13442 states to 13442 states and 19317 transitions. [2022-07-14 03:05:18,207 INFO L78 Accepts]: Start accepts. Automaton has 13442 states and 19317 transitions. Word has length 342 [2022-07-14 03:05:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:18,207 INFO L495 AbstractCegarLoop]: Abstraction has 13442 states and 19317 transitions. [2022-07-14 03:05:18,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:05:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 13442 states and 19317 transitions. [2022-07-14 03:05:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-07-14 03:05:18,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:18,223 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 17, 17, 17, 17, 17, 17, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:18,254 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 03:05:18,451 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 03:05:18,452 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:05:18,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1034647165, now seen corresponding path program 1 times [2022-07-14 03:05:18,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:18,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137029437] [2022-07-14 03:05:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:18,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:18,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:18,455 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 03:05:18,457 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 03:05:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:19,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:05:19,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2022-07-14 03:05:19,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:19,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:19,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137029437] [2022-07-14 03:05:19,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137029437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:19,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:19,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:05:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492580098] [2022-07-14 03:05:19,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:19,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:05:19,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:19,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:05:19,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:05:19,710 INFO L87 Difference]: Start difference. First operand 13442 states and 19317 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:05:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:20,759 INFO L93 Difference]: Finished difference Result 31264 states and 44935 transitions. [2022-07-14 03:05:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:05:20,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 364 [2022-07-14 03:05:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:20,915 INFO L225 Difference]: With dead ends: 31264 [2022-07-14 03:05:20,915 INFO L226 Difference]: Without dead ends: 19230 [2022-07-14 03:05:20,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 362 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 03:05:20,959 INFO L413 NwaCegarLoop]: 4454 mSDtfsCounter, 2107 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:20,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 6782 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:05:20,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19230 states. [2022-07-14 03:05:21,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19230 to 19224. [2022-07-14 03:05:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19224 states, 14030 states have (on average 1.3610121168923734) internal successors, (19095), 14035 states have internal predecessors, (19095), 4268 states have call successors, (4268), 924 states have call predecessors, (4268), 924 states have return successors, (4268), 4264 states have call predecessors, (4268), 4268 states have call successors, (4268) [2022-07-14 03:05:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19224 states to 19224 states and 27631 transitions. [2022-07-14 03:05:22,008 INFO L78 Accepts]: Start accepts. Automaton has 19224 states and 27631 transitions. Word has length 364 [2022-07-14 03:05:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:22,009 INFO L495 AbstractCegarLoop]: Abstraction has 19224 states and 27631 transitions. [2022-07-14 03:05:22,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 03:05:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 19224 states and 27631 transitions. [2022-07-14 03:05:22,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-07-14 03:05:22,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:22,029 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:22,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-14 03:05:22,251 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 03:05:22,252 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 03:05:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:22,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1515053959, now seen corresponding path program 1 times [2022-07-14 03:05:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:22,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055269432] [2022-07-14 03:05:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:22,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:22,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:22,255 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 03:05:22,256 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 03:05:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:23,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 2143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:23,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:05:23,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:23,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055269432] [2022-07-14 03:05:23,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055269432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:23,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:23,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:05:23,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415400060] [2022-07-14 03:05:23,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:23,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:23,587 INFO L87 Difference]: Start difference. First operand 19224 states and 27631 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:25,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:25,095 INFO L93 Difference]: Finished difference Result 42636 states and 61271 transitions. [2022-07-14 03:05:25,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:05:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 389 [2022-07-14 03:05:25,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:25,507 INFO L225 Difference]: With dead ends: 42636 [2022-07-14 03:05:25,507 INFO L226 Difference]: Without dead ends: 24820 [2022-07-14 03:05:25,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:25,582 INFO L413 NwaCegarLoop]: 4453 mSDtfsCounter, 2033 mSDsluCounter, 11211 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:25,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 15664 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:05:25,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24820 states. [2022-07-14 03:05:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24820 to 24806. [2022-07-14 03:05:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24806 states, 18057 states have (on average 1.3611895663731517) internal successors, (24579), 18064 states have internal predecessors, (24579), 5537 states have call successors, (5537), 1206 states have call predecessors, (5537), 1210 states have return successors, (5541), 5535 states have call predecessors, (5541), 5537 states have call successors, (5541) [2022-07-14 03:05:27,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24806 states to 24806 states and 35657 transitions. [2022-07-14 03:05:27,071 INFO L78 Accepts]: Start accepts. Automaton has 24806 states and 35657 transitions. Word has length 389 [2022-07-14 03:05:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:27,072 INFO L495 AbstractCegarLoop]: Abstraction has 24806 states and 35657 transitions. [2022-07-14 03:05:27,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24806 states and 35657 transitions. [2022-07-14 03:05:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-07-14 03:05:27,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:27,099 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:27,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-07-14 03:05:27,315 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 03:05:27,316 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 03:05:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash 291617498, now seen corresponding path program 1 times [2022-07-14 03:05:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:27,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577777630] [2022-07-14 03:05:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:27,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:27,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:27,319 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 03:05:27,321 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 03:05:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:28,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2144 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:28,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:05:28,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:28,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:28,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577777630] [2022-07-14 03:05:28,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577777630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:28,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:28,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:05:28,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717295085] [2022-07-14 03:05:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:28,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:28,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:28,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:28,490 INFO L87 Difference]: Start difference. First operand 24806 states and 35657 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:29,984 INFO L93 Difference]: Finished difference Result 53808 states and 77339 transitions. [2022-07-14 03:05:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:05:30,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 390 [2022-07-14 03:05:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:30,097 INFO L225 Difference]: With dead ends: 53808 [2022-07-14 03:05:30,098 INFO L226 Difference]: Without dead ends: 30410 [2022-07-14 03:05:30,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:30,157 INFO L413 NwaCegarLoop]: 4457 mSDtfsCounter, 2035 mSDsluCounter, 11217 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 15674 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:30,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 15674 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:05:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30410 states. [2022-07-14 03:05:31,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30410 to 30396. [2022-07-14 03:05:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30396 states, 22092 states have (on average 1.3611714647836322) internal successors, (30071), 22101 states have internal predecessors, (30071), 6806 states have call successors, (6806), 1488 states have call predecessors, (6806), 1496 states have return successors, (6814), 6806 states have call predecessors, (6814), 6806 states have call successors, (6814) [2022-07-14 03:05:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30396 states to 30396 states and 43691 transitions. [2022-07-14 03:05:31,777 INFO L78 Accepts]: Start accepts. Automaton has 30396 states and 43691 transitions. Word has length 390 [2022-07-14 03:05:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:31,777 INFO L495 AbstractCegarLoop]: Abstraction has 30396 states and 43691 transitions. [2022-07-14 03:05:31,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 30396 states and 43691 transitions. [2022-07-14 03:05:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-07-14 03:05:31,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:31,797 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:31,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-07-14 03:05:32,019 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 03:05:32,020 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 03:05:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash -419574428, now seen corresponding path program 1 times [2022-07-14 03:05:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:32,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923946730] [2022-07-14 03:05:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:32,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:32,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:32,023 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 03:05:32,026 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 03:05:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:33,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:33,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:05:33,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:33,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:33,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923946730] [2022-07-14 03:05:33,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923946730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:33,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:33,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:05:33,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415599895] [2022-07-14 03:05:33,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:33,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:33,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:33,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:33,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:33,277 INFO L87 Difference]: Start difference. First operand 30396 states and 43691 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:35,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:35,263 INFO L93 Difference]: Finished difference Result 65000 states and 93431 transitions. [2022-07-14 03:05:35,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:05:35,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 391 [2022-07-14 03:05:35,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:35,411 INFO L225 Difference]: With dead ends: 65000 [2022-07-14 03:05:35,412 INFO L226 Difference]: Without dead ends: 36012 [2022-07-14 03:05:35,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:35,502 INFO L413 NwaCegarLoop]: 4456 mSDtfsCounter, 2046 mSDsluCounter, 11204 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 15660 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:35,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 15660 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 03:05:35,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36012 states. [2022-07-14 03:05:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36012 to 35998. [2022-07-14 03:05:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35998 states, 26139 states have (on average 1.360993151995103) internal successors, (35575), 26150 states have internal predecessors, (35575), 8075 states have call successors, (8075), 1770 states have call predecessors, (8075), 1782 states have return successors, (8087), 8077 states have call predecessors, (8087), 8075 states have call successors, (8087) [2022-07-14 03:05:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35998 states to 35998 states and 51737 transitions. [2022-07-14 03:05:37,447 INFO L78 Accepts]: Start accepts. Automaton has 35998 states and 51737 transitions. Word has length 391 [2022-07-14 03:05:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:37,448 INFO L495 AbstractCegarLoop]: Abstraction has 35998 states and 51737 transitions. [2022-07-14 03:05:37,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:37,449 INFO L276 IsEmpty]: Start isEmpty. Operand 35998 states and 51737 transitions. [2022-07-14 03:05:37,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-07-14 03:05:37,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:37,476 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:37,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-07-14 03:05:37,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:37,697 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:05:37,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:37,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1863912343, now seen corresponding path program 1 times [2022-07-14 03:05:37,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:37,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874540444] [2022-07-14 03:05:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:37,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:37,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:37,701 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:05:37,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-14 03:05:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:38,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 2146 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:38,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:05:39,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:39,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:39,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874540444] [2022-07-14 03:05:39,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874540444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:39,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:39,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:05:39,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101331903] [2022-07-14 03:05:39,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:39,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:39,044 INFO L87 Difference]: Start difference. First operand 35998 states and 51737 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:41,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:41,581 INFO L93 Difference]: Finished difference Result 76208 states and 109531 transitions. [2022-07-14 03:05:41,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:05:41,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 392 [2022-07-14 03:05:41,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:41,770 INFO L225 Difference]: With dead ends: 76208 [2022-07-14 03:05:41,771 INFO L226 Difference]: Without dead ends: 41618 [2022-07-14 03:05:41,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:41,866 INFO L413 NwaCegarLoop]: 4456 mSDtfsCounter, 2037 mSDsluCounter, 11213 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 15669 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:41,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 15669 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 03:05:41,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41618 states. [2022-07-14 03:05:43,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41618 to 41604. [2022-07-14 03:05:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41604 states, 30190 states have (on average 1.3608148393507784) internal successors, (41083), 30203 states have internal predecessors, (41083), 9344 states have call successors, (9344), 2052 states have call predecessors, (9344), 2068 states have return successors, (9360), 9348 states have call predecessors, (9360), 9344 states have call successors, (9360) [2022-07-14 03:05:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41604 states to 41604 states and 59787 transitions. [2022-07-14 03:05:44,206 INFO L78 Accepts]: Start accepts. Automaton has 41604 states and 59787 transitions. Word has length 392 [2022-07-14 03:05:44,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:44,207 INFO L495 AbstractCegarLoop]: Abstraction has 41604 states and 59787 transitions. [2022-07-14 03:05:44,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 41604 states and 59787 transitions. [2022-07-14 03:05:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-07-14 03:05:44,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:44,249 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:44,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:44,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:44,464 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:05:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1801809087, now seen corresponding path program 1 times [2022-07-14 03:05:44,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:44,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499675800] [2022-07-14 03:05:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:44,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:44,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:44,468 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:05:44,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-07-14 03:05:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:45,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:45,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:05:45,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:45,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:45,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499675800] [2022-07-14 03:05:45,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499675800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:45,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:45,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:05:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616541241] [2022-07-14 03:05:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:45,958 INFO L87 Difference]: Start difference. First operand 41604 states and 59787 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:48,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:48,598 INFO L93 Difference]: Finished difference Result 87424 states and 125639 transitions. [2022-07-14 03:05:48,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:05:48,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 393 [2022-07-14 03:05:48,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:48,801 INFO L225 Difference]: With dead ends: 87424 [2022-07-14 03:05:48,801 INFO L226 Difference]: Without dead ends: 47228 [2022-07-14 03:05:48,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:48,891 INFO L413 NwaCegarLoop]: 4456 mSDtfsCounter, 2035 mSDsluCounter, 11215 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 15671 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:48,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 15671 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:05:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47228 states. [2022-07-14 03:05:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47228 to 47214. [2022-07-14 03:05:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47214 states, 34245 states have (on average 1.360636589283107) internal successors, (46595), 34260 states have internal predecessors, (46595), 10613 states have call successors, (10613), 2334 states have call predecessors, (10613), 2354 states have return successors, (10633), 10619 states have call predecessors, (10633), 10613 states have call successors, (10633) [2022-07-14 03:05:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47214 states to 47214 states and 67841 transitions. [2022-07-14 03:05:51,261 INFO L78 Accepts]: Start accepts. Automaton has 47214 states and 67841 transitions. Word has length 393 [2022-07-14 03:05:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:51,262 INFO L495 AbstractCegarLoop]: Abstraction has 47214 states and 67841 transitions. [2022-07-14 03:05:51,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 47214 states and 67841 transitions. [2022-07-14 03:05:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-07-14 03:05:51,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:51,285 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:51,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:51,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:51,511 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 03:05:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash -914423724, now seen corresponding path program 1 times [2022-07-14 03:05:51,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:51,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806608705] [2022-07-14 03:05:51,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:51,514 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:05:51,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-07-14 03:05:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:05:52,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:05:52,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:05:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:05:52,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:05:52,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:05:52,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806608705] [2022-07-14 03:05:52,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806608705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:05:52,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:05:52,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:05:52,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819760869] [2022-07-14 03:05:52,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:05:52,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:05:52,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:05:52,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:05:52,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:52,630 INFO L87 Difference]: Start difference. First operand 47214 states and 67841 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:05:55,544 INFO L93 Difference]: Finished difference Result 98648 states and 141755 transitions. [2022-07-14 03:05:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:05:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 394 [2022-07-14 03:05:55,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:05:55,732 INFO L225 Difference]: With dead ends: 98648 [2022-07-14 03:05:55,733 INFO L226 Difference]: Without dead ends: 52842 [2022-07-14 03:05:55,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:05:55,962 INFO L413 NwaCegarLoop]: 4456 mSDtfsCounter, 2035 mSDsluCounter, 11215 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 15671 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:05:55,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 15671 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:05:55,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52842 states. [2022-07-14 03:05:58,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52842 to 52828. [2022-07-14 03:05:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52828 states, 38304 states have (on average 1.3604584377610693) internal successors, (52111), 38321 states have internal predecessors, (52111), 11882 states have call successors, (11882), 2616 states have call predecessors, (11882), 2640 states have return successors, (11906), 11890 states have call predecessors, (11906), 11882 states have call successors, (11906) [2022-07-14 03:05:58,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52828 states to 52828 states and 75899 transitions. [2022-07-14 03:05:58,811 INFO L78 Accepts]: Start accepts. Automaton has 52828 states and 75899 transitions. Word has length 394 [2022-07-14 03:05:58,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:05:58,811 INFO L495 AbstractCegarLoop]: Abstraction has 52828 states and 75899 transitions. [2022-07-14 03:05:58,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:05:58,812 INFO L276 IsEmpty]: Start isEmpty. Operand 52828 states and 75899 transitions. [2022-07-14 03:05:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-14 03:05:58,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:05:58,835 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:05:58,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-07-14 03:05:59,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:05:59,064 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 03:05:59,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:05:59,064 INFO L85 PathProgramCache]: Analyzing trace with hash -614648546, now seen corresponding path program 1 times [2022-07-14 03:05:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:05:59,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769326493] [2022-07-14 03:05:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:05:59,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:05:59,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:05:59,068 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:05:59,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-07-14 03:06:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:06:00,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 2149 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:06:00,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:06:00,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1951 trivial. 0 not checked. [2022-07-14 03:06:00,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:06:00,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:06:00,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769326493] [2022-07-14 03:06:00,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769326493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:06:00,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:06:00,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:06:00,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158743677] [2022-07-14 03:06:00,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:06:00,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:06:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:06:00,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:06:00,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:06:00,232 INFO L87 Difference]: Start difference. First operand 52828 states and 75899 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 03:06:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:06:03,610 INFO L93 Difference]: Finished difference Result 109880 states and 157879 transitions. [2022-07-14 03:06:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:06:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 395 [2022-07-14 03:06:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:06:03,881 INFO L225 Difference]: With dead ends: 109880 [2022-07-14 03:06:03,881 INFO L226 Difference]: Without dead ends: 58460 [2022-07-14 03:06:04,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:06:04,161 INFO L413 NwaCegarLoop]: 4456 mSDtfsCounter, 2035 mSDsluCounter, 11215 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 15671 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:06:04,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 15671 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:06:04,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58460 states.