./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 03:45:02,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:45:02,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:45:02,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:45:02,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:45:02,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:45:02,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:45:02,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:45:02,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:45:02,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:45:02,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:45:02,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:45:02,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:45:02,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:45:02,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:45:02,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:45:02,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:45:02,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:45:02,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:45:02,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:45:02,294 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:45:02,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:45:02,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:45:02,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:45:02,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:45:02,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:45:02,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:45:02,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:45:02,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:45:02,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:45:02,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:45:02,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:45:02,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:45:02,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:45:02,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:45:02,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:45:02,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:45:02,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:45:02,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:45:02,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:45:02,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:45:02,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:45:02,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 03:45:02,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:45:02,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:45:02,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:45:02,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:45:02,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:45:02,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:45:02,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:45:02,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:45:02,352 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:45:02,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:45:02,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:45:02,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:45:02,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:45:02,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:45:02,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-23 03:45:02,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:45:02,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:45:02,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:45:02,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:45:02,610 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:45:02,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-23 03:45:02,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c9c0d85/1283d320ddf5484aa1d8580f9f595b49/FLAGd37f0cb30 [2022-07-23 03:45:03,330 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:45:03,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-23 03:45:03,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c9c0d85/1283d320ddf5484aa1d8580f9f595b49/FLAGd37f0cb30 [2022-07-23 03:45:03,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c9c0d85/1283d320ddf5484aa1d8580f9f595b49 [2022-07-23 03:45:03,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:45:03,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:45:03,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:45:03,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:45:03,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:45:03,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:45:03" (1/1) ... [2022-07-23 03:45:03,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faa9fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:03, skipping insertion in model container [2022-07-23 03:45:03,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:45:03" (1/1) ... [2022-07-23 03:45:03,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:45:03,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:45:05,488 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-23 03:45:05,490 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-23 03:45:05,491 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-23 03:45:05,491 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-23 03:45:05,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:45:05,545 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:45:05,670 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 03:45:05,677 INFO L158 Benchmark]: Toolchain (without parser) took 1983.30ms. Allocated memory was 125.8MB in the beginning and 201.3MB in the end (delta: 75.5MB). Free memory was 96.1MB in the beginning and 132.5MB in the end (delta: -36.4MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2022-07-23 03:45:05,678 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 03:45:05,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1979.81ms. Allocated memory was 125.8MB in the beginning and 201.3MB in the end (delta: 75.5MB). Free memory was 95.5MB in the beginning and 132.5MB in the end (delta: -37.0MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2022-07-23 03:45:05,680 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 92.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1979.81ms. Allocated memory was 125.8MB in the beginning and 201.3MB in the end (delta: 75.5MB). Free memory was 95.5MB in the beginning and 132.5MB in the end (delta: -37.0MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 03:45:07,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:45:07,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:45:07,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:45:07,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:45:07,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:45:07,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:45:07,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:45:07,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:45:07,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:45:07,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:45:07,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:45:07,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:45:07,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:45:07,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:45:07,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:45:07,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:45:07,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:45:07,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:45:07,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:45:07,559 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:45:07,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:45:07,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:45:07,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:45:07,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:45:07,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:45:07,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:45:07,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:45:07,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:45:07,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:45:07,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:45:07,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:45:07,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:45:07,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:45:07,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:45:07,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:45:07,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:45:07,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:45:07,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:45:07,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:45:07,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:45:07,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:45:07,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 03:45:07,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:45:07,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:45:07,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:45:07,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:45:07,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:45:07,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:45:07,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:45:07,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:45:07,614 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:45:07,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:45:07,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:45:07,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:45:07,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:45:07,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:45:07,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:45:07,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:45:07,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:45:07,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:45:07,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:45:07,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:45:07,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:45:07,618 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 03:45:07,618 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 03:45:07,618 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:45:07,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:45:07,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:45:07,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 03:45:07,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-23 03:45:07,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:45:07,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:45:07,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:45:07,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:45:07,913 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:45:07,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-23 03:45:07,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff86727f/7c6ed46c4f094fd18017d3f000f1f691/FLAGa2f51e8b2 [2022-07-23 03:45:08,607 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:45:08,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-23 03:45:08,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff86727f/7c6ed46c4f094fd18017d3f000f1f691/FLAGa2f51e8b2 [2022-07-23 03:45:08,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff86727f/7c6ed46c4f094fd18017d3f000f1f691 [2022-07-23 03:45:08,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:45:08,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:45:09,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:45:09,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:45:09,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:45:09,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:45:08" (1/1) ... [2022-07-23 03:45:09,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2183b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:09, skipping insertion in model container [2022-07-23 03:45:09,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:45:08" (1/1) ... [2022-07-23 03:45:09,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:45:09,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:45:10,696 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-23 03:45:10,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-23 03:45:10,701 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-23 03:45:10,702 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-23 03:45:10,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:45:10,778 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 03:45:10,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:45:11,104 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-23 03:45:11,105 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-23 03:45:11,105 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-23 03:45:11,106 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-23 03:45:11,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:45:11,129 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:45:11,487 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-23 03:45:11,487 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-23 03:45:11,488 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-23 03:45:11,488 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-23 03:45:11,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:45:11,649 INFO L208 MainTranslator]: Completed translation [2022-07-23 03:45:11,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11 WrapperNode [2022-07-23 03:45:11,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 03:45:11,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 03:45:11,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 03:45:11,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 03:45:11,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:11,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:11,833 INFO L137 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4910 [2022-07-23 03:45:11,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 03:45:11,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 03:45:11,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 03:45:11,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 03:45:11,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:11,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:11,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:11,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:11,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:12,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:12,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:12,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 03:45:12,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 03:45:12,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 03:45:12,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 03:45:12,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (1/1) ... [2022-07-23 03:45:12,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:45:12,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 03:45:12,081 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) [2022-07-23 03:45:12,107 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 [2022-07-23 03:45:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 03:45:12,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 03:45:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 03:45:12,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 03:45:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-23 03:45:12,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-23 03:45:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-07-23 03:45:12,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-07-23 03:45:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 03:45:12,117 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 03:45:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 03:45:12,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 03:45:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-07-23 03:45:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-07-23 03:45:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 03:45:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 03:45:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-23 03:45:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-23 03:45:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-23 03:45:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-23 03:45:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 03:45:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 03:45:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-23 03:45:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-23 03:45:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-23 03:45:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-23 03:45:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-23 03:45:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-23 03:45:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-23 03:45:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-23 03:45:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 03:45:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 03:45:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-07-23 03:45:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-07-23 03:45:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-23 03:45:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-23 03:45:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 03:45:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 03:45:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 03:45:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 03:45:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 03:45:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 03:45:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-23 03:45:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-23 03:45:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 03:45:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 03:45:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 03:45:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 03:45:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-07-23 03:45:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-07-23 03:45:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 03:45:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 03:45:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 03:45:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 03:45:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-07-23 03:45:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-07-23 03:45:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 03:45:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 03:45:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 03:45:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 03:45:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-23 03:45:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-23 03:45:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 03:45:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 03:45:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-07-23 03:45:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-07-23 03:45:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-23 03:45:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-23 03:45:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-07-23 03:45:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-07-23 03:45:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 03:45:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 03:45:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 03:45:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 03:45:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 03:45:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 03:45:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 03:45:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 03:45:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-07-23 03:45:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-07-23 03:45:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 03:45:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 03:45:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-23 03:45:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-23 03:45:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 03:45:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 03:45:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-07-23 03:45:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-07-23 03:45:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 03:45:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-23 03:45:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-23 03:45:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-23 03:45:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-23 03:45:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 03:45:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-23 03:45:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-23 03:45:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 03:45:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 03:45:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 03:45:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 03:45:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 03:45:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-23 03:45:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-23 03:45:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 03:45:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 03:45:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 03:45:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 03:45:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 03:45:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-23 03:45:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-23 03:45:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-07-23 03:45:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-07-23 03:45:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 03:45:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 03:45:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 03:45:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 03:45:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-23 03:45:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-23 03:45:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 03:45:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 03:45:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 03:45:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-07-23 03:45:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-07-23 03:45:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 03:45:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 03:45:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 03:45:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 03:45:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 03:45:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 03:45:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 03:45:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 03:45:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 03:45:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 03:45:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 03:45:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 03:45:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 03:45:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 03:45:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-07-23 03:45:12,135 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-07-23 03:45:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 03:45:12,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 03:45:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 03:45:12,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 03:45:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-07-23 03:45:12,135 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-07-23 03:45:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 03:45:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 03:45:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-23 03:45:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-23 03:45:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-23 03:45:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-23 03:45:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 03:45:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 03:45:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 03:45:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 03:45:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 03:45:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 03:45:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-23 03:45:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-23 03:45:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 03:45:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 03:45:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 03:45:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 03:45:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 03:45:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-07-23 03:45:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-07-23 03:45:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 03:45:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 03:45:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 03:45:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 03:45:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-23 03:45:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-23 03:45:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 03:45:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 03:45:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-23 03:45:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-23 03:45:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 03:45:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 03:45:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 03:45:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 03:45:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 03:45:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 03:45:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-23 03:45:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-23 03:45:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-23 03:45:12,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-23 03:45:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-23 03:45:12,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-23 03:45:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 03:45:12,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 03:45:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-23 03:45:12,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-23 03:45:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-23 03:45:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-23 03:45:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 03:45:12,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 03:45:12,724 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 03:45:12,726 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 03:45:14,977 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 03:45:53,710 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 03:45:53,749 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 03:45:53,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 03:45:53,771 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 03:45:53,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:45:53 BoogieIcfgContainer [2022-07-23 03:45:53,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 03:45:53,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 03:45:53,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 03:45:53,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 03:45:53,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 03:45:08" (1/3) ... [2022-07-23 03:45:53,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa9acb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:45:53, skipping insertion in model container [2022-07-23 03:45:53,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:45:11" (2/3) ... [2022-07-23 03:45:53,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa9acb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:45:53, skipping insertion in model container [2022-07-23 03:45:53,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:45:53" (3/3) ... [2022-07-23 03:45:53,779 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-23 03:45:53,788 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 03:45:53,789 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 03:45:53,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 03:45:53,912 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@dc14ceb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@843e404 [2022-07-23 03:45:53,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 03:45:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2022-07-23 03:45:53,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-23 03:45:53,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:45:53,942 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:45:53,943 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)] === [2022-07-23 03:45:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:45:53,947 INFO L85 PathProgramCache]: Analyzing trace with hash 355979356, now seen corresponding path program 1 times [2022-07-23 03:45:53,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:45:53,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848726058] [2022-07-23 03:45:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:45:53,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:45:53,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:45:53,968 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) [2022-07-23 03:45:53,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 03:45:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:45:54,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:45:54,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:45:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-23 03:45:55,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:45:55,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:45:55,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848726058] [2022-07-23 03:45:55,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848726058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:45:55,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:45:55,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:45:55,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719229381] [2022-07-23 03:45:55,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:45:55,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:45:55,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:45:55,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:45:55,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:45:55,116 INFO L87 Difference]: Start difference. First operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 03:45:55,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:45:55,588 INFO L93 Difference]: Finished difference Result 4978 states and 7117 transitions. [2022-07-23 03:45:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:45:55,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-07-23 03:45:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:45:55,628 INFO L225 Difference]: With dead ends: 4978 [2022-07-23 03:45:55,629 INFO L226 Difference]: Without dead ends: 3278 [2022-07-23 03:45:55,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:45:55,648 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 2266 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:45:55,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 5102 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:45:55,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2022-07-23 03:45:55,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3274. [2022-07-23 03:45:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2324 states have (on average 1.299053356282272) internal successors, (3019), 2369 states have internal predecessors, (3019), 787 states have call successors, (787), 161 states have call predecessors, (787), 160 states have return successors, (783), 765 states have call predecessors, (783), 783 states have call successors, (783) [2022-07-23 03:45:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4589 transitions. [2022-07-23 03:45:55,859 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4589 transitions. Word has length 116 [2022-07-23 03:45:55,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:45:55,860 INFO L495 AbstractCegarLoop]: Abstraction has 3274 states and 4589 transitions. [2022-07-23 03:45:55,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 03:45:55,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4589 transitions. [2022-07-23 03:45:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 03:45:55,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:45:55,866 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:45:55,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 03:45:56,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:45:56,080 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)] === [2022-07-23 03:45:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:45:56,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1373213958, now seen corresponding path program 1 times [2022-07-23 03:45:56,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:45:56,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200278914] [2022-07-23 03:45:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:45:56,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:45:56,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:45:56,085 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) [2022-07-23 03:45:56,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 03:45:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:45:56,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:45:57,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:45:57,156 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-23 03:45:57,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:45:57,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:45:57,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200278914] [2022-07-23 03:45:57,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200278914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:45:57,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:45:57,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:45:57,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895552388] [2022-07-23 03:45:57,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:45:57,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:45:57,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:45:57,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:45:57,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:45:57,158 INFO L87 Difference]: Start difference. First operand 3274 states and 4589 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 03:45:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:45:57,464 INFO L93 Difference]: Finished difference Result 9688 states and 13597 transitions. [2022-07-23 03:45:57,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:45:57,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-07-23 03:45:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:45:57,504 INFO L225 Difference]: With dead ends: 9688 [2022-07-23 03:45:57,505 INFO L226 Difference]: Without dead ends: 6435 [2022-07-23 03:45:57,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:45:57,527 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 2316 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:45:57,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5118 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:45:57,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-07-23 03:45:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6405. [2022-07-23 03:45:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6405 states, 4563 states have (on average 1.301775147928994) internal successors, (5940), 4657 states have internal predecessors, (5940), 1522 states have call successors, (1522), 320 states have call predecessors, (1522), 317 states have return successors, (1528), 1471 states have call predecessors, (1528), 1518 states have call successors, (1528) [2022-07-23 03:45:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 8990 transitions. [2022-07-23 03:45:57,730 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 8990 transitions. Word has length 122 [2022-07-23 03:45:57,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:45:57,731 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 8990 transitions. [2022-07-23 03:45:57,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 03:45:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 8990 transitions. [2022-07-23 03:45:57,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 03:45:57,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:45:57,734 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:45:57,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 03:45:57,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:45:57,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:45:57,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:45:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1237945319, now seen corresponding path program 1 times [2022-07-23 03:45:57,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:45:57,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053438844] [2022-07-23 03:45:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:45:57,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:45:57,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:45:57,951 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) [2022-07-23 03:45:57,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 03:45:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:45:58,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:45:58,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:45:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-23 03:45:59,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:45:59,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:45:59,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053438844] [2022-07-23 03:45:59,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053438844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:45:59,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:45:59,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:45:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577786098] [2022-07-23 03:45:59,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:45:59,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:45:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:45:59,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:45:59,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:45:59,066 INFO L87 Difference]: Start difference. First operand 6405 states and 8990 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 03:45:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:45:59,476 INFO L93 Difference]: Finished difference Result 18231 states and 25526 transitions. [2022-07-23 03:45:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:45:59,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-07-23 03:45:59,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:45:59,532 INFO L225 Difference]: With dead ends: 18231 [2022-07-23 03:45:59,532 INFO L226 Difference]: Without dead ends: 11847 [2022-07-23 03:45:59,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:45:59,557 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2029 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 03:45:59,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 5174 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 03:45:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2022-07-23 03:45:59,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 11813. [2022-07-23 03:45:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11813 states, 8415 states have (on average 1.2981580510992277) internal successors, (10924), 8597 states have internal predecessors, (10924), 2784 states have call successors, (2784), 618 states have call predecessors, (2784), 611 states have return successors, (2806), 2681 states have call predecessors, (2806), 2780 states have call successors, (2806) [2022-07-23 03:45:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16514 transitions. [2022-07-23 03:45:59,887 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16514 transitions. Word has length 122 [2022-07-23 03:45:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:45:59,891 INFO L495 AbstractCegarLoop]: Abstraction has 11813 states and 16514 transitions. [2022-07-23 03:45:59,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-23 03:45:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16514 transitions. [2022-07-23 03:45:59,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-23 03:45:59,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:45:59,893 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:45:59,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:00,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:00,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:46:00,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:00,117 INFO L85 PathProgramCache]: Analyzing trace with hash -155362643, now seen corresponding path program 1 times [2022-07-23 03:46:00,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:00,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695203923] [2022-07-23 03:46:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:00,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:00,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:00,136 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) [2022-07-23 03:46:00,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 03:46:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:01,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:01,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-23 03:46:01,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:01,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:01,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695203923] [2022-07-23 03:46:01,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695203923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:01,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:01,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:46:01,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047799101] [2022-07-23 03:46:01,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:01,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:01,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:01,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:01,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:01,186 INFO L87 Difference]: Start difference. First operand 11813 states and 16514 transitions. 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 03:46:01,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:01,982 INFO L93 Difference]: Finished difference Result 34375 states and 48048 transitions. [2022-07-23 03:46:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:01,983 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-07-23 03:46:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:02,099 INFO L225 Difference]: With dead ends: 34375 [2022-07-23 03:46:02,099 INFO L226 Difference]: Without dead ends: 22583 [2022-07-23 03:46:02,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:02,151 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2161 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:02,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 5084 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 03:46:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22583 states. [2022-07-23 03:46:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22583 to 22547. [2022-07-23 03:46:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22547 states, 16023 states have (on average 1.2976346501903513) internal successors, (20792), 16371 states have internal predecessors, (20792), 5316 states have call successors, (5316), 1218 states have call predecessors, (5316), 1205 states have return successors, (5370), 5101 states have call predecessors, (5370), 5312 states have call successors, (5370) [2022-07-23 03:46:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 31478 transitions. [2022-07-23 03:46:02,910 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 31478 transitions. Word has length 128 [2022-07-23 03:46:02,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:02,912 INFO L495 AbstractCegarLoop]: Abstraction has 22547 states and 31478 transitions. [2022-07-23 03:46:02,912 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 03:46:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 31478 transitions. [2022-07-23 03:46:02,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-23 03:46:02,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:02,915 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:46:02,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:03,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:03,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:46:03,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1030222312, now seen corresponding path program 1 times [2022-07-23 03:46:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:03,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650222040] [2022-07-23 03:46:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:03,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:03,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:03,140 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) [2022-07-23 03:46:03,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 03:46:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:04,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:04,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-23 03:46:04,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:04,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:04,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650222040] [2022-07-23 03:46:04,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650222040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:04,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:04,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:46:04,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579596714] [2022-07-23 03:46:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:04,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:04,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:04,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:04,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:04,236 INFO L87 Difference]: Start difference. First operand 22547 states and 31478 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 03:46:05,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:05,149 INFO L93 Difference]: Finished difference Result 41048 states and 57339 transitions. [2022-07-23 03:46:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:05,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-07-23 03:46:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:05,230 INFO L225 Difference]: With dead ends: 41048 [2022-07-23 03:46:05,230 INFO L226 Difference]: Without dead ends: 18522 [2022-07-23 03:46:05,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:05,302 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 1654 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 5658 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:05,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 5658 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 03:46:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18522 states. [2022-07-23 03:46:05,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18522 to 18482. [2022-07-23 03:46:05,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 13297 states have (on average 1.3028502669775137) internal successors, (17324), 13590 states have internal predecessors, (17324), 4166 states have call successors, (4166), 1031 states have call predecessors, (4166), 1016 states have return successors, (4191), 3974 states have call predecessors, (4191), 4162 states have call successors, (4191) [2022-07-23 03:46:05,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 25681 transitions. [2022-07-23 03:46:05,915 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 25681 transitions. Word has length 126 [2022-07-23 03:46:05,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:05,915 INFO L495 AbstractCegarLoop]: Abstraction has 18482 states and 25681 transitions. [2022-07-23 03:46:05,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 03:46:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 25681 transitions. [2022-07-23 03:46:05,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-23 03:46:05,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:05,917 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2022-07-23 03:46:05,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:06,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:06,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-07-23 03:46:06,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash 982818423, now seen corresponding path program 1 times [2022-07-23 03:46:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:06,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832552108] [2022-07-23 03:46:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:06,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:06,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:06,154 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) [2022-07-23 03:46:06,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 03:46:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:07,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:07,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-23 03:46:07,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:07,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:07,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832552108] [2022-07-23 03:46:07,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832552108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:07,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:07,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:46:07,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127040848] [2022-07-23 03:46:07,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:07,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:07,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:07,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:07,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:07,161 INFO L87 Difference]: Start difference. First operand 18482 states and 25681 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 03:46:08,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:08,010 INFO L93 Difference]: Finished difference Result 53720 states and 74704 transitions. [2022-07-23 03:46:08,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:08,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2022-07-23 03:46:08,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:08,145 INFO L225 Difference]: With dead ends: 53720 [2022-07-23 03:46:08,145 INFO L226 Difference]: Without dead ends: 35259 [2022-07-23 03:46:08,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:08,209 INFO L413 NwaCegarLoop]: 3145 mSDtfsCounter, 2327 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:08,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 5513 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:46:08,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35259 states. [2022-07-23 03:46:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35259 to 35201. [2022-07-23 03:46:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.3030997944013918) internal successors, (32958), 25884 states have internal predecessors, (32958), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48934 transitions. [2022-07-23 03:46:09,283 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48934 transitions. Word has length 145 [2022-07-23 03:46:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:09,283 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48934 transitions. [2022-07-23 03:46:09,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 03:46:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48934 transitions. [2022-07-23 03:46:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-23 03:46:09,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:09,286 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:09,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:09,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:09,500 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)] === [2022-07-23 03:46:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash -361805188, now seen corresponding path program 1 times [2022-07-23 03:46:09,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:09,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248971116] [2022-07-23 03:46:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:09,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:09,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:09,503 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) [2022-07-23 03:46:09,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 03:46:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:10,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:10,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:11,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:11,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:11,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248971116] [2022-07-23 03:46:11,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248971116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:11,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:11,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32975292] [2022-07-23 03:46:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:11,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:11,161 INFO L87 Difference]: Start difference. First operand 35201 states and 48934 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:13,336 INFO L93 Difference]: Finished difference Result 105449 states and 148202 transitions. [2022-07-23 03:46:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:13,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-23 03:46:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:13,839 INFO L225 Difference]: With dead ends: 105449 [2022-07-23 03:46:13,840 INFO L226 Difference]: Without dead ends: 70325 [2022-07-23 03:46:14,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:14,006 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 2305 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:14,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 6406 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 03:46:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70325 states. [2022-07-23 03:46:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70325 to 70299. [2022-07-23 03:46:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70299 states, 50510 states have (on average 1.2914670362304494) internal successors, (65232), 51692 states have internal predecessors, (65232), 15897 states have call successors, (15897), 3946 states have call predecessors, (15897), 3889 states have return successors, (16623), 15100 states have call predecessors, (16623), 15893 states have call successors, (16623) [2022-07-23 03:46:17,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70299 states to 70299 states and 97752 transitions. [2022-07-23 03:46:17,305 INFO L78 Accepts]: Start accepts. Automaton has 70299 states and 97752 transitions. Word has length 183 [2022-07-23 03:46:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:17,306 INFO L495 AbstractCegarLoop]: Abstraction has 70299 states and 97752 transitions. [2022-07-23 03:46:17,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 70299 states and 97752 transitions. [2022-07-23 03:46:17,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-23 03:46:17,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:17,309 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:17,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:17,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:17,523 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)] === [2022-07-23 03:46:17,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1546652602, now seen corresponding path program 1 times [2022-07-23 03:46:17,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:17,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078770666] [2022-07-23 03:46:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:17,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:17,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:17,527 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) [2022-07-23 03:46:17,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 03:46:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:18,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:18,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:19,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:19,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:19,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078770666] [2022-07-23 03:46:19,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078770666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:19,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:19,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:19,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815488921] [2022-07-23 03:46:19,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:19,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:19,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:19,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:19,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:19,273 INFO L87 Difference]: Start difference. First operand 70299 states and 97752 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:20,538 INFO L93 Difference]: Finished difference Result 105423 states and 145991 transitions. [2022-07-23 03:46:20,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:20,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-23 03:46:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:20,797 INFO L225 Difference]: With dead ends: 105423 [2022-07-23 03:46:20,797 INFO L226 Difference]: Without dead ends: 35201 [2022-07-23 03:46:20,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:20,966 INFO L413 NwaCegarLoop]: 2352 mSDtfsCounter, 2297 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:20,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 2352 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 03:46:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-23 03:46:22,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-23 03:46:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.277953503083979) internal successors, (32322), 25884 states have internal predecessors, (32322), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:22,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48298 transitions. [2022-07-23 03:46:22,235 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48298 transitions. Word has length 183 [2022-07-23 03:46:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:22,236 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48298 transitions. [2022-07-23 03:46:22,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48298 transitions. [2022-07-23 03:46:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-23 03:46:22,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:22,238 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:22,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:22,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:22,456 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)] === [2022-07-23 03:46:22,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1054026428, now seen corresponding path program 1 times [2022-07-23 03:46:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:22,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294766349] [2022-07-23 03:46:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:22,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:22,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:22,460 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) [2022-07-23 03:46:22,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 03:46:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:23,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:23,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:24,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:24,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:24,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294766349] [2022-07-23 03:46:24,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294766349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:24,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:24,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693576038] [2022-07-23 03:46:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:24,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:24,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:24,156 INFO L87 Difference]: Start difference. First operand 35201 states and 48298 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:25,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:25,135 INFO L93 Difference]: Finished difference Result 70325 states and 96505 transitions. [2022-07-23 03:46:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:25,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-23 03:46:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:25,276 INFO L225 Difference]: With dead ends: 70325 [2022-07-23 03:46:25,276 INFO L226 Difference]: Without dead ends: 35201 [2022-07-23 03:46:25,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:25,377 INFO L413 NwaCegarLoop]: 2351 mSDtfsCounter, 2295 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:25,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 2351 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 03:46:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-23 03:46:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-23 03:46:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.2766882808793294) internal successors, (32290), 25884 states have internal predecessors, (32290), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48266 transitions. [2022-07-23 03:46:26,629 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48266 transitions. Word has length 183 [2022-07-23 03:46:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:26,633 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48266 transitions. [2022-07-23 03:46:26,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48266 transitions. [2022-07-23 03:46:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-23 03:46:26,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:26,635 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:26,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:26,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:26,856 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)] === [2022-07-23 03:46:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:26,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2007966586, now seen corresponding path program 1 times [2022-07-23 03:46:26,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:26,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733660071] [2022-07-23 03:46:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:26,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:26,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:26,864 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) [2022-07-23 03:46:26,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 03:46:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:27,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:27,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:28,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:28,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:28,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733660071] [2022-07-23 03:46:28,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733660071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:28,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:28,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:28,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097554503] [2022-07-23 03:46:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:28,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:28,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:28,634 INFO L87 Difference]: Start difference. First operand 35201 states and 48266 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:29,672 INFO L93 Difference]: Finished difference Result 70293 states and 96409 transitions. [2022-07-23 03:46:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:29,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-23 03:46:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:29,788 INFO L225 Difference]: With dead ends: 70293 [2022-07-23 03:46:29,788 INFO L226 Difference]: Without dead ends: 35169 [2022-07-23 03:46:29,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:29,873 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 2288 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:29,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 2341 Invalid, 9 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 03:46:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35169 states. [2022-07-23 03:46:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35169 to 35169. [2022-07-23 03:46:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35169 states, 25260 states have (on average 1.2707046714172605) internal successors, (32098), 25852 states have internal predecessors, (32098), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48074 transitions. [2022-07-23 03:46:31,362 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48074 transitions. Word has length 183 [2022-07-23 03:46:31,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:31,363 INFO L495 AbstractCegarLoop]: Abstraction has 35169 states and 48074 transitions. [2022-07-23 03:46:31,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:31,363 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48074 transitions. [2022-07-23 03:46:31,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 03:46:31,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:31,365 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:31,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:31,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:31,589 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)] === [2022-07-23 03:46:31,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:31,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1700673724, now seen corresponding path program 1 times [2022-07-23 03:46:31,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:31,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598621493] [2022-07-23 03:46:31,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:31,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:31,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:31,592 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) [2022-07-23 03:46:31,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 03:46:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:32,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:32,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:33,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:33,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:33,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598621493] [2022-07-23 03:46:33,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598621493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:33,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:33,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:33,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747364352] [2022-07-23 03:46:33,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:33,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:33,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:33,368 INFO L87 Difference]: Start difference. First operand 35169 states and 48074 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:34,424 INFO L93 Difference]: Finished difference Result 69973 states and 95753 transitions. [2022-07-23 03:46:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:34,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-23 03:46:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:34,531 INFO L225 Difference]: With dead ends: 69973 [2022-07-23 03:46:34,531 INFO L226 Difference]: Without dead ends: 34881 [2022-07-23 03:46:34,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:34,606 INFO L413 NwaCegarLoop]: 2322 mSDtfsCounter, 2261 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:34,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 2322 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 03:46:34,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-23 03:46:35,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-23 03:46:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34881 states, 24972 states have (on average 1.2648566394361684) internal successors, (31586), 25564 states have internal predecessors, (31586), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47562 transitions. [2022-07-23 03:46:35,964 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47562 transitions. Word has length 187 [2022-07-23 03:46:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:35,966 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47562 transitions. [2022-07-23 03:46:35,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:35,967 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47562 transitions. [2022-07-23 03:46:35,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 03:46:35,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:35,969 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:35,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:36,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:36,184 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)] === [2022-07-23 03:46:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash 908113734, now seen corresponding path program 1 times [2022-07-23 03:46:36,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:36,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610560833] [2022-07-23 03:46:36,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:36,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:36,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:36,204 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) [2022-07-23 03:46:36,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 03:46:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:37,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:37,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:37,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:37,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:37,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610560833] [2022-07-23 03:46:37,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610560833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:37,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:37,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102261036] [2022-07-23 03:46:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:37,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:37,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:37,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:37,949 INFO L87 Difference]: Start difference. First operand 34881 states and 47562 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:39,077 INFO L93 Difference]: Finished difference Result 69685 states and 95161 transitions. [2022-07-23 03:46:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:39,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-23 03:46:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:39,348 INFO L225 Difference]: With dead ends: 69685 [2022-07-23 03:46:39,349 INFO L226 Difference]: Without dead ends: 34881 [2022-07-23 03:46:39,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:39,418 INFO L413 NwaCegarLoop]: 2321 mSDtfsCounter, 2258 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:39,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 2321 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 03:46:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-23 03:46:40,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-23 03:46:40,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34881 states, 24972 states have (on average 1.262614127823162) internal successors, (31530), 25564 states have internal predecessors, (31530), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47506 transitions. [2022-07-23 03:46:40,625 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47506 transitions. Word has length 187 [2022-07-23 03:46:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:40,625 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47506 transitions. [2022-07-23 03:46:40,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47506 transitions. [2022-07-23 03:46:40,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 03:46:40,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:40,627 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:40,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-23 03:46:40,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:40,832 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)] === [2022-07-23 03:46:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 853720836, now seen corresponding path program 1 times [2022-07-23 03:46:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:40,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157613192] [2022-07-23 03:46:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:40,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:40,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:40,836 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) [2022-07-23 03:46:40,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 03:46:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:41,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:41,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:42,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:42,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:42,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157613192] [2022-07-23 03:46:42,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157613192] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:42,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:42,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:42,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132055255] [2022-07-23 03:46:42,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:42,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:42,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:42,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:42,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:42,667 INFO L87 Difference]: Start difference. First operand 34881 states and 47506 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:43,933 INFO L93 Difference]: Finished difference Result 69637 states and 95001 transitions. [2022-07-23 03:46:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-23 03:46:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:44,080 INFO L225 Difference]: With dead ends: 69637 [2022-07-23 03:46:44,081 INFO L226 Difference]: Without dead ends: 34833 [2022-07-23 03:46:44,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:44,200 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 2253 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:44,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 2317 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 03:46:44,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34833 states. [2022-07-23 03:46:45,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34833 to 34833. [2022-07-23 03:46:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34833 states, 24924 states have (on average 1.2608730540844166) internal successors, (31426), 25516 states have internal predecessors, (31426), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-23 03:46:45,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34833 states to 34833 states and 47402 transitions. [2022-07-23 03:46:45,498 INFO L78 Accepts]: Start accepts. Automaton has 34833 states and 47402 transitions. Word has length 187 [2022-07-23 03:46:45,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:45,498 INFO L495 AbstractCegarLoop]: Abstraction has 34833 states and 47402 transitions. [2022-07-23 03:46:45,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 34833 states and 47402 transitions. [2022-07-23 03:46:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 03:46:45,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:45,505 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:45,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:45,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:45,723 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)] === [2022-07-23 03:46:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash 436324230, now seen corresponding path program 1 times [2022-07-23 03:46:45,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:45,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781433117] [2022-07-23 03:46:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:45,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:45,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:45,727 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) [2022-07-23 03:46:45,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 03:46:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:46,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:46,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:47,531 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-23 03:46:47,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:47,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:47,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781433117] [2022-07-23 03:46:47,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781433117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:47,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:47,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 03:46:47,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587922283] [2022-07-23 03:46:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:47,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:47,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:47,533 INFO L87 Difference]: Start difference. First operand 34833 states and 47402 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:49,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:49,569 INFO L93 Difference]: Finished difference Result 103505 states and 141056 transitions. [2022-07-23 03:46:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-23 03:46:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:49,830 INFO L225 Difference]: With dead ends: 103505 [2022-07-23 03:46:49,830 INFO L226 Difference]: Without dead ends: 68749 [2022-07-23 03:46:49,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:49,943 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 2196 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 5005 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:49,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 5005 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 03:46:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68749 states. [2022-07-23 03:46:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68749 to 68723. [2022-07-23 03:46:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68723 states, 49222 states have (on average 1.2604932753646743) internal successors, (62044), 50404 states have internal predecessors, (62044), 15609 states have call successors, (15609), 3946 states have call predecessors, (15609), 3889 states have return successors, (15849), 14812 states have call predecessors, (15849), 15605 states have call successors, (15849) [2022-07-23 03:46:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68723 states to 68723 states and 93502 transitions. [2022-07-23 03:46:52,657 INFO L78 Accepts]: Start accepts. Automaton has 68723 states and 93502 transitions. Word has length 187 [2022-07-23 03:46:52,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:46:52,658 INFO L495 AbstractCegarLoop]: Abstraction has 68723 states and 93502 transitions. [2022-07-23 03:46:52,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 03:46:52,658 INFO L276 IsEmpty]: Start isEmpty. Operand 68723 states and 93502 transitions. [2022-07-23 03:46:52,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 03:46:52,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:46:52,660 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 03:46:52,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 03:46:52,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:46:52,864 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)] === [2022-07-23 03:46:52,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:46:52,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1115596484, now seen corresponding path program 1 times [2022-07-23 03:46:52,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:46:52,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418577239] [2022-07-23 03:46:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:46:52,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:46:52,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:46:52,868 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) [2022-07-23 03:46:52,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 03:46:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:46:53,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:46:53,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:46:53,858 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-23 03:46:53,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:46:53,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:46:53,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418577239] [2022-07-23 03:46:53,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418577239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:46:53,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:46:53,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:46:53,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289292960] [2022-07-23 03:46:53,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:46:53,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:46:53,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:46:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:46:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:53,860 INFO L87 Difference]: Start difference. First operand 68723 states and 93502 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 03:46:58,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:46:58,472 INFO L93 Difference]: Finished difference Result 201225 states and 274179 transitions. [2022-07-23 03:46:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:46:58,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 187 [2022-07-23 03:46:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:46:59,055 INFO L225 Difference]: With dead ends: 201225 [2022-07-23 03:46:59,055 INFO L226 Difference]: Without dead ends: 132579 [2022-07-23 03:46:59,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:46:59,269 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 2151 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 5518 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:46:59,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 5518 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:46:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132579 states.