./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.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 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:33:19,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:33:19,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:33:19,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:33:19,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:33:19,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:33:19,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:33:19,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:33:19,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:33:19,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:33:19,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:33:19,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:33:19,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:33:19,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:33:19,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:33:19,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:33:19,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:33:19,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:33:19,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:33:19,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:33:19,374 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:33:19,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:33:19,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:33:19,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:33:19,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:33:19,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:33:19,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:33:19,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:33:19,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:33:19,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:33:19,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:33:19,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:33:19,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:33:19,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:33:19,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:33:19,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:33:19,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:33:19,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:33:19,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:33:19,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:33:19,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:33:19,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:33:19,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:33:19,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:33:19,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:33:19,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:33:19,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:33:19,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:33:19,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:33:19,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:33:19,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:33:19,434 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:33:19,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:33:19,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:33:19,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:33:19,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:33:19,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:33:19,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:33:19,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:33:19,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:33:19,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:33:19,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:33:19,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:33:19,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:33:19,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:33:19,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:33:19,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:33:19,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:33:19,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:33:19,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:33:19,440 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:33:19,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:33:19,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:33:19,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-14 03:33:19,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:33:19,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:33:19,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:33:19,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:33:19,714 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:33:19,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-14 03:33:19,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f05c20a0/2f75182228eb451eae2fedddca51d5ef/FLAG6ca7eb0bd [2022-07-14 03:33:20,656 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:33:20,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-14 03:33:20,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f05c20a0/2f75182228eb451eae2fedddca51d5ef/FLAG6ca7eb0bd [2022-07-14 03:33:21,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f05c20a0/2f75182228eb451eae2fedddca51d5ef [2022-07-14 03:33:21,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:33:21,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:33:21,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:33:21,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:33:21,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:33:21,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:33:21" (1/1) ... [2022-07-14 03:33:21,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2653a2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:21, skipping insertion in model container [2022-07-14 03:33:21,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:33:21" (1/1) ... [2022-07-14 03:33:21,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:33:21,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:33:26,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-14 03:33:26,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-14 03:33:26,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-14 03:33:26,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-14 03:33:26,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:33:26,175 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:33:26,310 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: data = data & 4294959087U [8080] 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 03:33:26,316 INFO L158 Benchmark]: Toolchain (without parser) took 5218.93ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 67.5MB in the beginning and 65.1MB in the end (delta: 2.3MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2022-07-14 03:33:26,317 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 57.6MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 03:33:26,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5217.16ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 67.0MB in the beginning and 65.1MB in the end (delta: 1.8MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2022-07-14 03:33:26,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 57.6MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5217.16ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 67.0MB in the beginning and 65.1MB in the end (delta: 1.8MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: data = data & 4294959087U [8080] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294959087U [8080]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.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 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:33:28,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:33:28,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:33:28,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:33:28,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:33:28,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:33:28,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:33:28,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:33:28,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:33:28,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:33:28,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:33:28,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:33:28,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:33:28,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:33:28,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:33:28,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:33:28,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:33:28,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:33:28,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:33:28,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:33:28,123 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:33:28,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:33:28,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:33:28,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:33:28,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:33:28,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:33:28,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:33:28,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:33:28,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:33:28,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:33:28,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:33:28,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:33:28,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:33:28,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:33:28,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:33:28,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:33:28,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:33:28,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:33:28,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:33:28,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:33:28,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:33:28,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:33:28,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 03:33:28,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:33:28,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:33:28,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:33:28,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:33:28,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:33:28,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:33:28,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:33:28,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:33:28,180 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:33:28,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:33:28,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:33:28,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:33:28,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:33:28,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:33:28,182 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 03:33:28,182 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 03:33:28,182 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 03:33:28,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:33:28,183 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:33:28,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:33:28,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:33:28,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:33:28,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:33:28,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:33:28,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:33:28,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:33:28,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:33:28,185 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 03:33:28,185 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 03:33:28,185 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:33:28,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:33:28,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:33:28,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 03:33:28,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-14 03:33:28,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:33:28,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:33:28,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:33:28,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:33:28,522 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:33:28,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-14 03:33:28,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50105f620/530724eaa7a6472a80d597da6e99180d/FLAG8fda743d0 [2022-07-14 03:33:29,605 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:33:29,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-14 03:33:29,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50105f620/530724eaa7a6472a80d597da6e99180d/FLAG8fda743d0 [2022-07-14 03:33:30,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50105f620/530724eaa7a6472a80d597da6e99180d [2022-07-14 03:33:30,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:33:30,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:33:30,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:33:30,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:33:30,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:33:30,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:33:30" (1/1) ... [2022-07-14 03:33:30,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2025b76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:30, skipping insertion in model container [2022-07-14 03:33:30,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:33:30" (1/1) ... [2022-07-14 03:33:30,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:33:30,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:33:35,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-14 03:33:35,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-14 03:33:35,104 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-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-14 03:33:35,105 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-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-14 03:33:35,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:33:35,237 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 03:33:35,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:33:35,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-14 03:33:35,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-14 03:33:35,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-14 03:33:35,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-14 03:33:35,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:33:35,755 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:33:36,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-14 03:33:36,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-14 03:33:36,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-14 03:33:36,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-14 03:33:36,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:33:36,652 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:33:36,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36 WrapperNode [2022-07-14 03:33:36,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:33:36,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:33:36,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:33:36,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:33:36,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:36,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,112 INFO L137 Inliner]: procedures = 693, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 9701 [2022-07-14 03:33:37,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:33:37,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:33:37,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:33:37,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:33:37,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:33:37,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:33:37,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:33:37,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:33:37,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (1/1) ... [2022-07-14 03:33:37,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:33:37,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:33:37,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 03:33:37,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 03:33:37,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-07-14 03:33:37,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-07-14 03:33:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 03:33:37,612 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 03:33:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-14 03:33:37,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-14 03:33:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-07-14 03:33:37,612 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-07-14 03:33:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-14 03:33:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-14 03:33:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-07-14 03:33:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-07-14 03:33:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 03:33:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 03:33:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:33:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:33:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-07-14 03:33:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-07-14 03:33:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-14 03:33:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-14 03:33:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:33:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:33:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-07-14 03:33:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-07-14 03:33:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:33:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:33:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 03:33:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 03:33:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 03:33:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 03:33:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 03:33:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 03:33:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-07-14 03:33:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-07-14 03:33:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 03:33:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 03:33:37,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-14 03:33:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-14 03:33:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-07-14 03:33:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-07-14 03:33:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-07-14 03:33:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-07-14 03:33:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-07-14 03:33:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-07-14 03:33:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 03:33:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 03:33:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:33:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:33:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 03:33:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 03:33:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 03:33:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 03:33:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:33:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:33:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:33:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:33:37,621 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 03:33:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 03:33:37,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 03:33:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 03:33:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-14 03:33:37,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-14 03:33:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:33:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 03:33:37,623 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 03:33:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-07-14 03:33:37,623 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-07-14 03:33:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 03:33:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 03:33:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 03:33:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 03:33:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-14 03:33:37,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-14 03:33:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-14 03:33:37,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-14 03:33:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-07-14 03:33:37,625 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-07-14 03:33:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 03:33:37,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 03:33:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-07-14 03:33:37,626 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-07-14 03:33:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-07-14 03:33:37,627 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-07-14 03:33:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-07-14 03:33:37,627 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-07-14 03:33:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-07-14 03:33:37,627 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-07-14 03:33:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 03:33:37,627 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 03:33:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 03:33:37,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 03:33:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-07-14 03:33:37,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-07-14 03:33:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:33:37,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:33:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 03:33:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 03:33:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 03:33:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 03:33:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 03:33:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 03:33:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 03:33:37,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 03:33:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-14 03:33:37,632 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-14 03:33:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:33:37,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:33:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 03:33:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 03:33:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 03:33:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 03:33:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-07-14 03:33:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-07-14 03:33:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:33:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:33:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:33:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:33:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-14 03:33:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-14 03:33:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:33:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:33:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 03:33:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 03:33:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:33:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-07-14 03:33:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-07-14 03:33:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-14 03:33:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-14 03:33:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 03:33:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 03:33:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 03:33:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:33:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:33:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 03:33:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-14 03:33:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-14 03:33:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-14 03:33:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-14 03:33:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-14 03:33:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-14 03:33:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-07-14 03:33:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-07-14 03:33:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-07-14 03:33:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-07-14 03:33:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 03:33:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 03:33:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-14 03:33:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-14 03:33:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:33:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:33:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-07-14 03:33:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-07-14 03:33:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 03:33:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 03:33:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-07-14 03:33:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-07-14 03:33:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-14 03:33:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-14 03:33:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-07-14 03:33:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-07-14 03:33:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-07-14 03:33:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-07-14 03:33:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-07-14 03:33:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-07-14 03:33:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-14 03:33:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-14 03:33:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 03:33:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 03:33:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 03:33:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-07-14 03:33:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-07-14 03:33:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-07-14 03:33:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-07-14 03:33:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-07-14 03:33:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-07-14 03:33:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-07-14 03:33:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-07-14 03:33:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:33:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:33:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-14 03:33:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-14 03:33:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 03:33:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 03:33:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 03:33:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 03:33:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 03:33:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 03:33:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 03:33:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 03:33:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 03:33:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 03:33:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:33:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:33:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:33:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:33:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 03:33:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 03:33:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-14 03:33:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-14 03:33:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-07-14 03:33:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-07-14 03:33:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-14 03:33:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-14 03:33:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 03:33:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 03:33:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-07-14 03:33:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-07-14 03:33:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-07-14 03:33:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-07-14 03:33:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 03:33:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 03:33:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-14 03:33:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-14 03:33:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-14 03:33:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-14 03:33:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-07-14 03:33:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-07-14 03:33:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-07-14 03:33:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-07-14 03:33:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 03:33:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 03:33:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 03:33:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 03:33:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-07-14 03:33:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-07-14 03:33:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-14 03:33:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-14 03:33:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-07-14 03:33:37,655 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-07-14 03:33:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-14 03:33:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-14 03:33:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 03:33:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 03:33:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:33:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-14 03:33:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-14 03:33:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-07-14 03:33:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-07-14 03:33:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-07-14 03:33:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-07-14 03:33:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 03:33:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 03:33:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:33:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-07-14 03:33:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-07-14 03:33:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-14 03:33:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-14 03:33:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 03:33:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 03:33:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-07-14 03:33:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-07-14 03:33:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 03:33:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 03:33:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:33:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-14 03:33:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-14 03:33:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-07-14 03:33:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-07-14 03:33:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-14 03:33:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-14 03:33:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 03:33:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 03:33:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-07-14 03:33:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-07-14 03:33:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:33:37,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:33:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:33:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:33:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 03:33:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 03:33:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-07-14 03:33:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-07-14 03:33:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-14 03:33:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-14 03:33:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-07-14 03:33:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-07-14 03:33:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-07-14 03:33:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-07-14 03:33:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-07-14 03:33:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-07-14 03:33:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-07-14 03:33:37,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-07-14 03:33:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 03:33:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 03:33:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 03:33:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 03:33:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 03:33:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 03:33:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-07-14 03:33:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-07-14 03:33:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:33:37,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:33:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-07-14 03:33:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-07-14 03:33:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 03:33:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 03:33:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-07-14 03:33:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-07-14 03:33:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-07-14 03:33:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-07-14 03:33:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-14 03:33:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-14 03:33:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 03:33:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 03:33:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-07-14 03:33:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-07-14 03:33:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-07-14 03:33:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-07-14 03:33:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 03:33:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 03:33:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 03:33:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 03:33:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:33:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:33:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-07-14 03:33:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-07-14 03:33:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 03:33:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 03:33:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 03:33:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 03:33:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-07-14 03:33:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-07-14 03:33:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 03:33:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 03:33:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-07-14 03:33:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-07-14 03:33:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-07-14 03:33:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-07-14 03:33:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-07-14 03:33:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-07-14 03:33:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-07-14 03:33:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-07-14 03:33:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:33:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:33:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 03:33:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 03:33:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-07-14 03:33:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-07-14 03:33:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-07-14 03:33:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-07-14 03:33:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-07-14 03:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-07-14 03:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-14 03:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-14 03:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-14 03:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-14 03:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-07-14 03:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-07-14 03:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:33:38,859 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:33:38,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:33:39,695 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:34:32,181 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:34:32,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:34:32,206 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 03:34:32,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:34:32 BoogieIcfgContainer [2022-07-14 03:34:32,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:34:32,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:34:32,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:34:32,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:34:32,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:33:30" (1/3) ... [2022-07-14 03:34:32,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5371f5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:34:32, skipping insertion in model container [2022-07-14 03:34:32,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:33:36" (2/3) ... [2022-07-14 03:34:32,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5371f5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:34:32, skipping insertion in model container [2022-07-14 03:34:32,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:34:32" (3/3) ... [2022-07-14 03:34:32,216 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-14 03:34:32,229 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:34:32,229 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-14 03:34:32,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:34:32,351 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@2132e42f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66992f24 [2022-07-14 03:34:32,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-14 03:34:32,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 3738 states, 2494 states have (on average 1.2489975942261426) internal successors, (3115), 2549 states have internal predecessors, (3115), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) [2022-07-14 03:34:32,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 03:34:32,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:34:32,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:34:32,377 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:34:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:34:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash 641900107, now seen corresponding path program 1 times [2022-07-14 03:34:32,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:34:32,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291684086] [2022-07-14 03:34:32,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:34:32,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:34:32,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:34:32,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:34:32,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 03:34:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:34:34,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:34:34,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:34:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 03:34:35,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:34:35,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:34:35,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291684086] [2022-07-14 03:34:35,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291684086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:34:35,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:34:35,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:34:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347785687] [2022-07-14 03:34:35,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:34:35,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:34:35,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:34:35,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:34:35,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:34:35,414 INFO L87 Difference]: Start difference. First operand has 3738 states, 2494 states have (on average 1.2489975942261426) internal successors, (3115), 2549 states have internal predecessors, (3115), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 03:34:36,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:34:36,216 INFO L93 Difference]: Finished difference Result 7449 states and 10625 transitions. [2022-07-14 03:34:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:34:36,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2022-07-14 03:34:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:34:36,266 INFO L225 Difference]: With dead ends: 7449 [2022-07-14 03:34:36,267 INFO L226 Difference]: Without dead ends: 3723 [2022-07-14 03:34:36,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:34:36,306 INFO L413 NwaCegarLoop]: 5246 mSDtfsCounter, 5220 mSDsluCounter, 10476 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 15722 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:34:36,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 15722 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:34:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2022-07-14 03:34:36,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2022-07-14 03:34:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 2487 states have (on average 1.241254523522316) internal successors, (3087), 2538 states have internal predecessors, (3087), 1074 states have call successors, (1074), 159 states have call predecessors, (1074), 158 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 03:34:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5232 transitions. [2022-07-14 03:34:36,738 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5232 transitions. Word has length 48 [2022-07-14 03:34:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:34:36,739 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5232 transitions. [2022-07-14 03:34:36,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 03:34:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5232 transitions. [2022-07-14 03:34:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 03:34:36,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:34:36,743 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 03:34:36,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 03:34:36,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:34:36,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:34:36,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:34:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 802517195, now seen corresponding path program 1 times [2022-07-14 03:34:36,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:34:36,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257329708] [2022-07-14 03:34:36,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:34:36,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:34:36,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:34:36,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:34:36,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 03:34:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:34:38,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:34:38,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:34:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 03:34:39,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:34:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 03:34:40,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:34:40,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257329708] [2022-07-14 03:34:40,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257329708] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:34:40,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:34:40,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:34:40,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88036803] [2022-07-14 03:34:40,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:34:40,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:34:40,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:34:40,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:34:40,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:34:40,575 INFO L87 Difference]: Start difference. First operand 3723 states and 5232 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 03:34:41,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:34:41,245 INFO L93 Difference]: Finished difference Result 3729 states and 5237 transitions. [2022-07-14 03:34:41,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:34:41,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-07-14 03:34:41,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:34:41,271 INFO L225 Difference]: With dead ends: 3729 [2022-07-14 03:34:41,271 INFO L226 Difference]: Without dead ends: 3727 [2022-07-14 03:34:41,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:34:41,275 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:34:41,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:34:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2022-07-14 03:34:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3727. [2022-07-14 03:34:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 2490 states have (on average 1.2409638554216869) internal successors, (3090), 2541 states have internal predecessors, (3090), 1074 states have call successors, (1074), 160 states have call predecessors, (1074), 159 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 03:34:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5235 transitions. [2022-07-14 03:34:41,476 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5235 transitions. Word has length 53 [2022-07-14 03:34:41,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:34:41,477 INFO L495 AbstractCegarLoop]: Abstraction has 3727 states and 5235 transitions. [2022-07-14 03:34:41,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 03:34:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5235 transitions. [2022-07-14 03:34:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 03:34:41,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:34:41,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:34:41,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 03:34:41,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:34:41,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:34:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:34:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2051062261, now seen corresponding path program 1 times [2022-07-14 03:34:41,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:34:41,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614750817] [2022-07-14 03:34:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:34:41,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:34:41,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:34:41,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:34:41,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 03:34:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:34:43,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:34:43,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:34:44,483 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 03:34:44,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:34:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 03:34:45,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:34:45,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614750817] [2022-07-14 03:34:45,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614750817] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:34:45,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:34:45,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:34:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627625948] [2022-07-14 03:34:45,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:34:45,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:34:45,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:34:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:34:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:34:45,116 INFO L87 Difference]: Start difference. First operand 3727 states and 5235 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 03:34:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:34:45,817 INFO L93 Difference]: Finished difference Result 3733 states and 5240 transitions. [2022-07-14 03:34:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:34:45,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-07-14 03:34:45,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:34:45,932 INFO L225 Difference]: With dead ends: 3733 [2022-07-14 03:34:45,932 INFO L226 Difference]: Without dead ends: 3731 [2022-07-14 03:34:45,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:34:45,938 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:34:45,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5210 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:34:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2022-07-14 03:34:46,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3731. [2022-07-14 03:34:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 2493 states have (on average 1.2406738868832732) internal successors, (3093), 2544 states have internal predecessors, (3093), 1074 states have call successors, (1074), 161 states have call predecessors, (1074), 160 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 03:34:46,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5238 transitions. [2022-07-14 03:34:46,148 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5238 transitions. Word has length 58 [2022-07-14 03:34:46,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:34:46,148 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 5238 transitions. [2022-07-14 03:34:46,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 03:34:46,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5238 transitions. [2022-07-14 03:34:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-14 03:34:46,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:34:46,152 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:34:46,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 03:34:46,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:34:46,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:34:46,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:34:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1594216587, now seen corresponding path program 1 times [2022-07-14 03:34:46,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:34:46,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675121849] [2022-07-14 03:34:46,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:34:46,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:34:46,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:34:46,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:34:46,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 03:34:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:34:48,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:34:48,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:34:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 03:34:49,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:34:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 03:34:49,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:34:49,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675121849] [2022-07-14 03:34:49,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675121849] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:34:49,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:34:49,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:34:49,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011420827] [2022-07-14 03:34:49,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:34:49,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:34:49,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:34:49,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:34:49,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:34:49,934 INFO L87 Difference]: Start difference. First operand 3731 states and 5238 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 03:34:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:34:50,583 INFO L93 Difference]: Finished difference Result 3737 states and 5243 transitions. [2022-07-14 03:34:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:34:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-07-14 03:34:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:34:50,614 INFO L225 Difference]: With dead ends: 3737 [2022-07-14 03:34:50,615 INFO L226 Difference]: Without dead ends: 3735 [2022-07-14 03:34:50,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:34:50,622 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5209 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:34:50,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5209 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:34:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2022-07-14 03:34:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3735. [2022-07-14 03:34:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 2496 states have (on average 1.2403846153846154) internal successors, (3096), 2547 states have internal predecessors, (3096), 1074 states have call successors, (1074), 162 states have call predecessors, (1074), 161 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 03:34:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5241 transitions. [2022-07-14 03:34:50,808 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5241 transitions. Word has length 63 [2022-07-14 03:34:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:34:50,809 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 5241 transitions. [2022-07-14 03:34:50,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 03:34:50,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5241 transitions. [2022-07-14 03:34:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-14 03:34:50,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:34:50,812 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:34:50,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 03:34:51,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:34:51,027 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:34:51,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:34:51,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1194398261, now seen corresponding path program 1 times [2022-07-14 03:34:51,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:34:51,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085249957] [2022-07-14 03:34:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:34:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:34:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:34:51,030 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:34:51,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 03:34:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:34:52,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:34:52,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:34:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-14 03:34:54,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:34:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-14 03:34:54,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:34:54,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085249957] [2022-07-14 03:34:54,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085249957] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:34:54,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:34:54,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:34:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655489092] [2022-07-14 03:34:54,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:34:54,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:34:54,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:34:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:34:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:34:54,731 INFO L87 Difference]: Start difference. First operand 3735 states and 5241 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 03:34:55,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:34:55,397 INFO L93 Difference]: Finished difference Result 3741 states and 5246 transitions. [2022-07-14 03:34:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:34:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-07-14 03:34:55,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:34:55,424 INFO L225 Difference]: With dead ends: 3741 [2022-07-14 03:34:55,425 INFO L226 Difference]: Without dead ends: 3739 [2022-07-14 03:34:55,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:34:55,429 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:34:55,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:34:55,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2022-07-14 03:34:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2022-07-14 03:34:55,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3739 states, 2499 states have (on average 1.240096038415366) internal successors, (3099), 2550 states have internal predecessors, (3099), 1074 states have call successors, (1074), 163 states have call predecessors, (1074), 162 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 03:34:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 5244 transitions. [2022-07-14 03:34:55,646 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 5244 transitions. Word has length 68 [2022-07-14 03:34:55,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:34:55,646 INFO L495 AbstractCegarLoop]: Abstraction has 3739 states and 5244 transitions. [2022-07-14 03:34:55,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 03:34:55,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 5244 transitions. [2022-07-14 03:34:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-14 03:34:55,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:34:55,648 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:34:55,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 03:34:55,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:34:55,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:34:55,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:34:55,872 INFO L85 PathProgramCache]: Analyzing trace with hash 541092142, now seen corresponding path program 1 times [2022-07-14 03:34:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:34:55,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192972860] [2022-07-14 03:34:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:34:55,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:34:55,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:34:55,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:34:55,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 03:34:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:34:57,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 03:34:57,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:34:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-07-14 03:34:59,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 03:35:01,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:01,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192972860] [2022-07-14 03:35:01,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192972860] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:35:01,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:35:01,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-14 03:35:01,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312637253] [2022-07-14 03:35:01,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:35:01,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 03:35:01,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 03:35:01,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-14 03:35:01,606 INFO L87 Difference]: Start difference. First operand 3739 states and 5244 transitions. Second operand has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-14 03:35:10,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:10,997 INFO L93 Difference]: Finished difference Result 6085 states and 8472 transitions. [2022-07-14 03:35:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 03:35:10,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 86 [2022-07-14 03:35:10,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:11,023 INFO L225 Difference]: With dead ends: 6085 [2022-07-14 03:35:11,023 INFO L226 Difference]: Without dead ends: 3753 [2022-07-14 03:35:11,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-14 03:35:11,040 INFO L413 NwaCegarLoop]: 5189 mSDtfsCounter, 42 mSDsluCounter, 77684 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 82873 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:11,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 82873 Invalid, 858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-14 03:35:11,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-14 03:35:11,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3749. [2022-07-14 03:35:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 2507 states have (on average 1.2393298763462306) internal successors, (3107), 2558 states have internal predecessors, (3107), 1076 states have call successors, (1076), 163 states have call predecessors, (1076), 162 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-14 03:35:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5256 transitions. [2022-07-14 03:35:11,226 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5256 transitions. Word has length 86 [2022-07-14 03:35:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:11,227 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 5256 transitions. [2022-07-14 03:35:11,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-14 03:35:11,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5256 transitions. [2022-07-14 03:35:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 03:35:11,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:11,228 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:11,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:11,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:11,448 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:11,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:11,448 INFO L85 PathProgramCache]: Analyzing trace with hash -24956853, now seen corresponding path program 1 times [2022-07-14 03:35:11,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:11,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145081524] [2022-07-14 03:35:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:11,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:11,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:11,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 03:35:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:13,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:13,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 03:35:14,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 03:35:15,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:15,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145081524] [2022-07-14 03:35:15,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145081524] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:15,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:15,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:15,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241435300] [2022-07-14 03:35:15,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:15,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:15,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:15,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:15,096 INFO L87 Difference]: Start difference. First operand 3749 states and 5256 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 03:35:15,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:15,753 INFO L93 Difference]: Finished difference Result 3755 states and 5261 transitions. [2022-07-14 03:35:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:15,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2022-07-14 03:35:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:15,796 INFO L225 Difference]: With dead ends: 3755 [2022-07-14 03:35:15,797 INFO L226 Difference]: Without dead ends: 3753 [2022-07-14 03:35:15,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:15,801 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:15,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:15,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-14 03:35:15,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-14 03:35:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2510 states have (on average 1.2390438247011952) internal successors, (3110), 2561 states have internal predecessors, (3110), 1076 states have call successors, (1076), 164 states have call predecessors, (1076), 163 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-14 03:35:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5259 transitions. [2022-07-14 03:35:16,007 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5259 transitions. Word has length 73 [2022-07-14 03:35:16,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:16,008 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5259 transitions. [2022-07-14 03:35:16,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 03:35:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5259 transitions. [2022-07-14 03:35:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-14 03:35:16,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:16,014 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:16,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:16,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:16,228 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:16,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1548642933, now seen corresponding path program 1 times [2022-07-14 03:35:16,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:16,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844209617] [2022-07-14 03:35:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:16,233 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:16,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 03:35:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:18,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:18,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:19,459 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 03:35:19,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 03:35:20,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844209617] [2022-07-14 03:35:20,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844209617] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:20,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:20,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903854277] [2022-07-14 03:35:20,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:20,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:20,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:20,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:20,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:20,174 INFO L87 Difference]: Start difference. First operand 3753 states and 5259 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 03:35:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:20,863 INFO L93 Difference]: Finished difference Result 3759 states and 5264 transitions. [2022-07-14 03:35:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2022-07-14 03:35:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:20,885 INFO L225 Difference]: With dead ends: 3759 [2022-07-14 03:35:20,885 INFO L226 Difference]: Without dead ends: 3757 [2022-07-14 03:35:20,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:20,889 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5206 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:20,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5206 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-07-14 03:35:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3757. [2022-07-14 03:35:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 2513 states have (on average 1.238758456028651) internal successors, (3113), 2564 states have internal predecessors, (3113), 1076 states have call successors, (1076), 165 states have call predecessors, (1076), 164 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-14 03:35:21,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5262 transitions. [2022-07-14 03:35:21,085 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5262 transitions. Word has length 78 [2022-07-14 03:35:21,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:21,085 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5262 transitions. [2022-07-14 03:35:21,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 03:35:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5262 transitions. [2022-07-14 03:35:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-14 03:35:21,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:21,088 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:21,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:21,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:21,316 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:21,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash -770863093, now seen corresponding path program 1 times [2022-07-14 03:35:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:21,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862265959] [2022-07-14 03:35:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:21,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:21,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:21,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:21,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 03:35:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:23,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:23,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:24,474 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 03:35:24,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 03:35:25,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:25,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862265959] [2022-07-14 03:35:25,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862265959] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:25,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:25,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:25,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178834802] [2022-07-14 03:35:25,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:25,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:25,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:25,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:25,106 INFO L87 Difference]: Start difference. First operand 3757 states and 5262 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 03:35:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:25,733 INFO L93 Difference]: Finished difference Result 3763 states and 5267 transitions. [2022-07-14 03:35:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:25,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2022-07-14 03:35:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:25,754 INFO L225 Difference]: With dead ends: 3763 [2022-07-14 03:35:25,755 INFO L226 Difference]: Without dead ends: 3761 [2022-07-14 03:35:25,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:25,760 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:25,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2022-07-14 03:35:25,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 3761. [2022-07-14 03:35:25,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 2516 states have (on average 1.2384737678855327) internal successors, (3116), 2567 states have internal predecessors, (3116), 1076 states have call successors, (1076), 166 states have call predecessors, (1076), 165 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-14 03:35:25,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5265 transitions. [2022-07-14 03:35:25,962 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5265 transitions. Word has length 83 [2022-07-14 03:35:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:25,963 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5265 transitions. [2022-07-14 03:35:25,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 03:35:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5265 transitions. [2022-07-14 03:35:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-14 03:35:25,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:25,965 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:26,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:26,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:26,180 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:26,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:26,180 INFO L85 PathProgramCache]: Analyzing trace with hash -626574005, now seen corresponding path program 1 times [2022-07-14 03:35:26,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:26,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934632312] [2022-07-14 03:35:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:26,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:26,183 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:26,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 03:35:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:28,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:28,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 03:35:29,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 03:35:30,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:30,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934632312] [2022-07-14 03:35:30,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934632312] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:30,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:30,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:30,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575484424] [2022-07-14 03:35:30,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:30,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:30,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:30,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:30,301 INFO L87 Difference]: Start difference. First operand 3761 states and 5265 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 03:35:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:30,971 INFO L93 Difference]: Finished difference Result 3938 states and 5493 transitions. [2022-07-14 03:35:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2022-07-14 03:35:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:30,991 INFO L225 Difference]: With dead ends: 3938 [2022-07-14 03:35:30,991 INFO L226 Difference]: Without dead ends: 3936 [2022-07-14 03:35:30,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:30,995 INFO L413 NwaCegarLoop]: 5364 mSDtfsCounter, 5106 mSDsluCounter, 11017 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 16381 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:30,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 16381 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-07-14 03:35:31,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3934. [2022-07-14 03:35:31,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 2640 states have (on average 1.2412878787878787) internal successors, (3277), 2692 states have internal predecessors, (3277), 1108 states have call successors, (1108), 183 states have call predecessors, (1108), 182 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:35:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5490 transitions. [2022-07-14 03:35:31,200 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5490 transitions. Word has length 88 [2022-07-14 03:35:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:31,201 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5490 transitions. [2022-07-14 03:35:31,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 03:35:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5490 transitions. [2022-07-14 03:35:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 03:35:31,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:31,204 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:31,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:31,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:31,424 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash -312152117, now seen corresponding path program 1 times [2022-07-14 03:35:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:31,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065345117] [2022-07-14 03:35:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:31,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:31,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:31,428 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:31,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 03:35:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:33,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:33,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 03:35:34,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 03:35:35,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:35,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065345117] [2022-07-14 03:35:35,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065345117] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:35,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:35,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:35,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573179513] [2022-07-14 03:35:35,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:35,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:35,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:35,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:35,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:35,303 INFO L87 Difference]: Start difference. First operand 3934 states and 5490 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 03:35:35,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:35,927 INFO L93 Difference]: Finished difference Result 3940 states and 5495 transitions. [2022-07-14 03:35:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:35,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-07-14 03:35:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:35,949 INFO L225 Difference]: With dead ends: 3940 [2022-07-14 03:35:35,950 INFO L226 Difference]: Without dead ends: 3938 [2022-07-14 03:35:35,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:35,955 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:35,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-14 03:35:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-14 03:35:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 2643 states have (on average 1.241013999243284) internal successors, (3280), 2695 states have internal predecessors, (3280), 1108 states have call successors, (1108), 184 states have call predecessors, (1108), 183 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:35:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5493 transitions. [2022-07-14 03:35:36,232 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5493 transitions. Word has length 93 [2022-07-14 03:35:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:36,233 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5493 transitions. [2022-07-14 03:35:36,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 03:35:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5493 transitions. [2022-07-14 03:35:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-14 03:35:36,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:36,235 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:36,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:36,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:36,453 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:36,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:36,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1578113781, now seen corresponding path program 1 times [2022-07-14 03:35:36,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:36,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988625171] [2022-07-14 03:35:36,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:36,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:36,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:36,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:36,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 03:35:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:38,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:38,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-14 03:35:40,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-14 03:35:40,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:40,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988625171] [2022-07-14 03:35:40,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988625171] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:40,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:40,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:40,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043011157] [2022-07-14 03:35:40,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:40,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:40,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:40,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:40,709 INFO L87 Difference]: Start difference. First operand 3938 states and 5493 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 03:35:41,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:41,236 INFO L93 Difference]: Finished difference Result 3944 states and 5498 transitions. [2022-07-14 03:35:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2022-07-14 03:35:41,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:41,253 INFO L225 Difference]: With dead ends: 3944 [2022-07-14 03:35:41,253 INFO L226 Difference]: Without dead ends: 3942 [2022-07-14 03:35:41,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:41,256 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5202 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:41,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5202 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2022-07-14 03:35:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2022-07-14 03:35:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 2646 states have (on average 1.2407407407407407) internal successors, (3283), 2698 states have internal predecessors, (3283), 1108 states have call successors, (1108), 185 states have call predecessors, (1108), 184 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:35:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5496 transitions. [2022-07-14 03:35:41,470 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5496 transitions. Word has length 98 [2022-07-14 03:35:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:41,470 INFO L495 AbstractCegarLoop]: Abstraction has 3942 states and 5496 transitions. [2022-07-14 03:35:41,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 03:35:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5496 transitions. [2022-07-14 03:35:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 03:35:41,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:41,473 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:41,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:41,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:41,687 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:41,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:41,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1270263925, now seen corresponding path program 1 times [2022-07-14 03:35:41,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:41,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725687134] [2022-07-14 03:35:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:41,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:41,692 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:41,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 03:35:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:43,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:43,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 03:35:44,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 03:35:45,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:45,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725687134] [2022-07-14 03:35:45,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725687134] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:45,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:45,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:45,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743586433] [2022-07-14 03:35:45,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:45,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:45,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:45,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:45,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:45,580 INFO L87 Difference]: Start difference. First operand 3942 states and 5496 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 03:35:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:46,152 INFO L93 Difference]: Finished difference Result 3948 states and 5501 transitions. [2022-07-14 03:35:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:46,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2022-07-14 03:35:46,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:46,167 INFO L225 Difference]: With dead ends: 3948 [2022-07-14 03:35:46,168 INFO L226 Difference]: Without dead ends: 3946 [2022-07-14 03:35:46,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:46,170 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5201 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:46,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5201 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-07-14 03:35:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3946. [2022-07-14 03:35:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3946 states, 2649 states have (on average 1.240468101170253) internal successors, (3286), 2701 states have internal predecessors, (3286), 1108 states have call successors, (1108), 186 states have call predecessors, (1108), 185 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:35:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5499 transitions. [2022-07-14 03:35:46,377 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 5499 transitions. Word has length 103 [2022-07-14 03:35:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:46,377 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 5499 transitions. [2022-07-14 03:35:46,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 03:35:46,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 5499 transitions. [2022-07-14 03:35:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-14 03:35:46,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:46,379 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:46,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:46,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:46,599 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:46,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:46,600 INFO L85 PathProgramCache]: Analyzing trace with hash -305427253, now seen corresponding path program 1 times [2022-07-14 03:35:46,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:46,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550777704] [2022-07-14 03:35:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:46,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:46,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:46,603 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:46,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 03:35:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:48,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:48,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-14 03:35:49,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:50,631 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-14 03:35:50,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:50,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550777704] [2022-07-14 03:35:50,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550777704] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:50,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:50,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:50,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325106163] [2022-07-14 03:35:50,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:50,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:50,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:50,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:50,634 INFO L87 Difference]: Start difference. First operand 3946 states and 5499 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:35:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:51,224 INFO L93 Difference]: Finished difference Result 3952 states and 5504 transitions. [2022-07-14 03:35:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2022-07-14 03:35:51,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:51,265 INFO L225 Difference]: With dead ends: 3952 [2022-07-14 03:35:51,266 INFO L226 Difference]: Without dead ends: 3950 [2022-07-14 03:35:51,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:51,270 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5200 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:51,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5200 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:51,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2022-07-14 03:35:51,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3950. [2022-07-14 03:35:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3950 states, 2652 states have (on average 1.2401960784313726) internal successors, (3289), 2704 states have internal predecessors, (3289), 1108 states have call successors, (1108), 187 states have call predecessors, (1108), 186 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:35:51,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5502 transitions. [2022-07-14 03:35:51,499 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5502 transitions. Word has length 108 [2022-07-14 03:35:51,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:51,499 INFO L495 AbstractCegarLoop]: Abstraction has 3950 states and 5502 transitions. [2022-07-14 03:35:51,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:35:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5502 transitions. [2022-07-14 03:35:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-14 03:35:51,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:51,501 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:51,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:51,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:51,724 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash -629493941, now seen corresponding path program 1 times [2022-07-14 03:35:51,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:51,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669151943] [2022-07-14 03:35:51,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:51,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:51,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:51,728 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:51,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 03:35:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:53,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:53,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:35:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-14 03:35:55,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:35:56,045 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-14 03:35:56,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:35:56,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669151943] [2022-07-14 03:35:56,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669151943] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:35:56,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:35:56,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:35:56,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835996538] [2022-07-14 03:35:56,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:35:56,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:35:56,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:35:56,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:35:56,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:35:56,047 INFO L87 Difference]: Start difference. First operand 3950 states and 5502 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:35:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:35:56,583 INFO L93 Difference]: Finished difference Result 3956 states and 5507 transitions. [2022-07-14 03:35:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:35:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2022-07-14 03:35:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:35:56,602 INFO L225 Difference]: With dead ends: 3956 [2022-07-14 03:35:56,602 INFO L226 Difference]: Without dead ends: 3954 [2022-07-14 03:35:56,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:35:56,606 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5199 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:35:56,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5199 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:35:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-07-14 03:35:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3954. [2022-07-14 03:35:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 2655 states have (on average 1.239924670433145) internal successors, (3292), 2707 states have internal predecessors, (3292), 1108 states have call successors, (1108), 188 states have call predecessors, (1108), 187 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:35:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5505 transitions. [2022-07-14 03:35:56,834 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5505 transitions. Word has length 113 [2022-07-14 03:35:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:35:56,835 INFO L495 AbstractCegarLoop]: Abstraction has 3954 states and 5505 transitions. [2022-07-14 03:35:56,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:35:56,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5505 transitions. [2022-07-14 03:35:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-14 03:35:56,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:35:56,837 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:35:56,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 03:35:57,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:35:57,055 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:35:57,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:35:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1652176011, now seen corresponding path program 1 times [2022-07-14 03:35:57,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:35:57,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949219574] [2022-07-14 03:35:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:35:57,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:35:57,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:35:57,060 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:35:57,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 03:35:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:35:58,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:35:58,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-14 03:36:00,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:36:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-14 03:36:01,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:01,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949219574] [2022-07-14 03:36:01,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949219574] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:36:01,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:36:01,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:36:01,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412481876] [2022-07-14 03:36:01,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:01,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:36:01,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:01,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:36:01,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:36:01,364 INFO L87 Difference]: Start difference. First operand 3954 states and 5505 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 03:36:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:01,894 INFO L93 Difference]: Finished difference Result 3960 states and 5510 transitions. [2022-07-14 03:36:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:36:01,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2022-07-14 03:36:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:01,909 INFO L225 Difference]: With dead ends: 3960 [2022-07-14 03:36:01,910 INFO L226 Difference]: Without dead ends: 3956 [2022-07-14 03:36:01,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:36:01,912 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5198 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:01,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5198 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:36:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2022-07-14 03:36:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3956. [2022-07-14 03:36:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 2657 states have (on average 1.2393677079412873) internal successors, (3293), 2708 states have internal predecessors, (3293), 1108 states have call successors, (1108), 189 states have call predecessors, (1108), 187 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-14 03:36:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 5506 transitions. [2022-07-14 03:36:02,140 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 5506 transitions. Word has length 118 [2022-07-14 03:36:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:02,141 INFO L495 AbstractCegarLoop]: Abstraction has 3956 states and 5506 transitions. [2022-07-14 03:36:02,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 03:36:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 5506 transitions. [2022-07-14 03:36:02,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-14 03:36:02,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:02,143 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:36:02,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 03:36:02,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:36:02,371 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:36:02,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:02,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1673072395, now seen corresponding path program 1 times [2022-07-14 03:36:02,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:36:02,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650745113] [2022-07-14 03:36:02,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:02,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:36:02,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:36:02,376 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:36:02,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 03:36:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:04,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:36:04,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-14 03:36:05,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:36:06,591 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-14 03:36:06,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:06,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650745113] [2022-07-14 03:36:06,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650745113] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:36:06,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:36:06,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:36:06,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433569562] [2022-07-14 03:36:06,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:06,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:36:06,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:06,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:36:06,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:36:06,593 INFO L87 Difference]: Start difference. First operand 3956 states and 5506 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:36:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:07,389 INFO L93 Difference]: Finished difference Result 7874 states and 10961 transitions. [2022-07-14 03:36:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:36:07,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 123 [2022-07-14 03:36:07,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:07,421 INFO L225 Difference]: With dead ends: 7874 [2022-07-14 03:36:07,421 INFO L226 Difference]: Without dead ends: 7762 [2022-07-14 03:36:07,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:36:07,427 INFO L413 NwaCegarLoop]: 6568 mSDtfsCounter, 5196 mSDsluCounter, 18299 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 24867 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:07,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 24867 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:36:07,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2022-07-14 03:36:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 7755. [2022-07-14 03:36:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2429009976976209) internal successors, (6478), 5313 states have internal predecessors, (6478), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-14 03:36:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10836 transitions. [2022-07-14 03:36:07,952 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10836 transitions. Word has length 123 [2022-07-14 03:36:07,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:07,953 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10836 transitions. [2022-07-14 03:36:07,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:36:07,953 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10836 transitions. [2022-07-14 03:36:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-14 03:36:07,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:07,957 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:36:08,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 03:36:08,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:36:08,180 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:36:08,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1096775537, now seen corresponding path program 1 times [2022-07-14 03:36:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:36:08,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298623642] [2022-07-14 03:36:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:08,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:36:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:36:08,184 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:36:08,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 03:36:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:10,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-14 03:36:10,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2022-07-14 03:36:10,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:36:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-07-14 03:36:12,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:12,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298623642] [2022-07-14 03:36:12,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298623642] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:36:12,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:36:12,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-14 03:36:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673344143] [2022-07-14 03:36:12,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:36:12,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 03:36:12,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 03:36:12,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 03:36:12,458 INFO L87 Difference]: Start difference. First operand 7755 states and 10836 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-14 03:36:15,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:15,961 INFO L93 Difference]: Finished difference Result 15501 states and 21658 transitions. [2022-07-14 03:36:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 03:36:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 212 [2022-07-14 03:36:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:15,996 INFO L225 Difference]: With dead ends: 15501 [2022-07-14 03:36:15,996 INFO L226 Difference]: Without dead ends: 7759 [2022-07-14 03:36:16,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 412 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-14 03:36:16,034 INFO L413 NwaCegarLoop]: 5192 mSDtfsCounter, 1257 mSDsluCounter, 34538 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 39730 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:16,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 39730 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-14 03:36:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7759 states. [2022-07-14 03:36:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7759 to 7755. [2022-07-14 03:36:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2427091327705295) internal successors, (6477), 5312 states have internal predecessors, (6477), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-14 03:36:16,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10835 transitions. [2022-07-14 03:36:16,572 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10835 transitions. Word has length 212 [2022-07-14 03:36:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:16,573 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10835 transitions. [2022-07-14 03:36:16,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-14 03:36:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10835 transitions. [2022-07-14 03:36:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-14 03:36:16,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:16,576 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:36:16,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 03:36:16,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:36:16,796 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:36:16,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:16,796 INFO L85 PathProgramCache]: Analyzing trace with hash 34564430, now seen corresponding path program 1 times [2022-07-14 03:36:16,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:36:16,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837709749] [2022-07-14 03:36:16,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:16,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:36:16,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:36:16,799 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:36:16,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 03:36:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:19,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-14 03:36:19,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-07-14 03:36:20,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:36:22,007 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-14 03:36:22,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:22,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837709749] [2022-07-14 03:36:22,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837709749] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:36:22,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:36:22,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-07-14 03:36:22,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781232866] [2022-07-14 03:36:22,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:36:22,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 03:36:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:22,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 03:36:22,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-14 03:36:22,011 INFO L87 Difference]: Start difference. First operand 7755 states and 10835 transitions. Second operand has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-14 03:36:25,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:25,956 INFO L93 Difference]: Finished difference Result 8185 states and 11334 transitions. [2022-07-14 03:36:25,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 03:36:25,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 216 [2022-07-14 03:36:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:25,979 INFO L225 Difference]: With dead ends: 8185 [2022-07-14 03:36:25,980 INFO L226 Difference]: Without dead ends: 7767 [2022-07-14 03:36:25,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-14 03:36:25,985 INFO L413 NwaCegarLoop]: 5199 mSDtfsCounter, 54 mSDsluCounter, 46611 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 51810 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:25,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 51810 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-14 03:36:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2022-07-14 03:36:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7755. [2022-07-14 03:36:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2423254029163469) internal successors, (6475), 5310 states have internal predecessors, (6475), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-14 03:36:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10833 transitions. [2022-07-14 03:36:26,414 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10833 transitions. Word has length 216 [2022-07-14 03:36:26,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:26,415 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10833 transitions. [2022-07-14 03:36:26,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-14 03:36:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10833 transitions. [2022-07-14 03:36:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-14 03:36:26,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:26,419 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:36:26,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-14 03:36:26,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:36:26,635 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:36:26,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1447891691, now seen corresponding path program 1 times [2022-07-14 03:36:26,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:36:26,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246042456] [2022-07-14 03:36:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:26,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:36:26,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:36:26,639 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:36:26,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 03:36:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:29,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 03:36:29,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-07-14 03:36:32,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:36:32,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:32,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246042456] [2022-07-14 03:36:32,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246042456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:32,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:32,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:36:32,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132762184] [2022-07-14 03:36:32,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:32,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:36:32,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:32,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:36:32,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:36:32,194 INFO L87 Difference]: Start difference. First operand 7755 states and 10833 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-14 03:36:32,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:32,636 INFO L93 Difference]: Finished difference Result 7757 states and 10834 transitions. [2022-07-14 03:36:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:36:32,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 220 [2022-07-14 03:36:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:32,673 INFO L225 Difference]: With dead ends: 7757 [2022-07-14 03:36:32,673 INFO L226 Difference]: Without dead ends: 7755 [2022-07-14 03:36:32,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:36:32,679 INFO L413 NwaCegarLoop]: 5343 mSDtfsCounter, 5034 mSDsluCounter, 10995 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 16338 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:32,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5035 Valid, 16338 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:36:32,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7755 states. [2022-07-14 03:36:33,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7755 to 7753. [2022-07-14 03:36:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7753 states, 5211 states have (on average 1.241988102091729) internal successors, (6472), 5308 states have internal predecessors, (6472), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-14 03:36:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7753 states to 7753 states and 10830 transitions. [2022-07-14 03:36:33,212 INFO L78 Accepts]: Start accepts. Automaton has 7753 states and 10830 transitions. Word has length 220 [2022-07-14 03:36:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:33,213 INFO L495 AbstractCegarLoop]: Abstraction has 7753 states and 10830 transitions. [2022-07-14 03:36:33,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-14 03:36:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7753 states and 10830 transitions. [2022-07-14 03:36:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-14 03:36:33,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:33,220 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:36:33,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 03:36:33,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:36:33,432 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:36:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:33,432 INFO L85 PathProgramCache]: Analyzing trace with hash 660255781, now seen corresponding path program 1 times [2022-07-14 03:36:33,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:36:33,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954976665] [2022-07-14 03:36:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:33,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:36:33,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:36:33,436 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:36:33,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-14 03:36:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:36,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:36:36,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-14 03:36:36,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:36:36,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:36,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954976665] [2022-07-14 03:36:36,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954976665] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:36,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:36,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:36:36,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754244578] [2022-07-14 03:36:36,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:36,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:36:36,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:36,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:36:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:36:36,285 INFO L87 Difference]: Start difference. First operand 7753 states and 10830 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-14 03:36:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:36:36,706 INFO L93 Difference]: Finished difference Result 15557 states and 22055 transitions. [2022-07-14 03:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:36:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 300 [2022-07-14 03:36:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:36:36,733 INFO L225 Difference]: With dead ends: 15557 [2022-07-14 03:36:36,734 INFO L226 Difference]: Without dead ends: 7821 [2022-07-14 03:36:36,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:36:36,767 INFO L413 NwaCegarLoop]: 5223 mSDtfsCounter, 12 mSDsluCounter, 5216 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10439 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:36:36,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10439 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:36:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2022-07-14 03:36:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7757. [2022-07-14 03:36:37,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7757 states, 5215 states have (on average 1.2418024928092042) internal successors, (6476), 5312 states have internal predecessors, (6476), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-14 03:36:37,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 10834 transitions. [2022-07-14 03:36:37,258 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 10834 transitions. Word has length 300 [2022-07-14 03:36:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:36:37,259 INFO L495 AbstractCegarLoop]: Abstraction has 7757 states and 10834 transitions. [2022-07-14 03:36:37,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-14 03:36:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 10834 transitions. [2022-07-14 03:36:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-14 03:36:37,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:36:37,267 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:36:37,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-14 03:36:37,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:36:37,483 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-14 03:36:37,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:36:37,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2090535692, now seen corresponding path program 1 times [2022-07-14 03:36:37,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:36:37,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462145414] [2022-07-14 03:36:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:36:37,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:36:37,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:36:37,487 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:36:37,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-14 03:36:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:36:40,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-14 03:36:40,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:36:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-14 03:36:43,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:36:43,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:36:43,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462145414] [2022-07-14 03:36:43,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462145414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:36:43,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:36:43,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 03:36:43,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002848] [2022-07-14 03:36:43,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:36:43,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 03:36:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:36:43,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 03:36:43,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-14 03:36:43,946 INFO L87 Difference]: Start difference. First operand 7757 states and 10834 transitions. Second operand has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-07-14 03:36:51,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:53,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:56,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:36:58,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:03,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:05,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:07,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:08,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 03:37:09,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []