./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 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-791161d [2022-07-23 03:09:27,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:09:27,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:09:27,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:09:27,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:09:27,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:09:27,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:09:27,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:09:27,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:09:27,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:09:27,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:09:27,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:09:27,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:09:27,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:09:27,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:09:27,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:09:27,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:09:27,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:09:27,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:09:27,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:09:27,581 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:09:27,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:09:27,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:09:27,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:09:27,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:09:27,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:09:27,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:09:27,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:09:27,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:09:27,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:09:27,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:09:27,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:09:27,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:09:27,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:09:27,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:09:27,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:09:27,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:09:27,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:09:27,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:09:27,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:09:27,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:09:27,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:09:27,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 03:09:27,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:09:27,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:09:27,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:09:27,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:09:27,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:09:27,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:09:27,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:09:27,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:09:27,643 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:09:27,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:09:27,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 03:09:27,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:09:27,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:09:27,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:09:27,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:09:27,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:09:27,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:09:27,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:09:27,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:09:27,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:09:27,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:09:27,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:09:27,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:09:27,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:09:27,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:09:27,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 03:09:27,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 03:09:27,649 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:09:27,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:09:27,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:09:27,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-23 03:09:27,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:09:27,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:09:27,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:09:27,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:09:27,885 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:09:27,886 INFO L432 ainManager$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 [2022-07-23 03:09:27,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b86d1f3c/a072529586bd425dadcd0c47808f5d26/FLAGb304af30d [2022-07-23 03:09:28,847 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:09:28,848 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 [2022-07-23 03:09:28,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b86d1f3c/a072529586bd425dadcd0c47808f5d26/FLAGb304af30d [2022-07-23 03:09:28,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b86d1f3c/a072529586bd425dadcd0c47808f5d26 [2022-07-23 03:09:28,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:09:28,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:09:28,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:09:28,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:09:28,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:09:28,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:09:28" (1/1) ... [2022-07-23 03:09:28,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358492e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:28, skipping insertion in model container [2022-07-23 03:09:28,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:09:28" (1/1) ... [2022-07-23 03:09:28,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:09:29,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:09:34,127 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] [2022-07-23 03:09:34,130 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] [2022-07-23 03:09:34,130 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] [2022-07-23 03:09:34,131 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] [2022-07-23 03:09:34,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:09:34,209 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:09:34,353 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) [2022-07-23 03:09:34,358 INFO L158 Benchmark]: Toolchain (without parser) took 5390.46ms. Allocated memory was 102.8MB in the beginning and 188.7MB in the end (delta: 86.0MB). Free memory was 67.9MB in the beginning and 101.0MB in the end (delta: -33.1MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2022-07-23 03:09:34,359 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory was 56.6MB in the beginning and 56.5MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 03:09:34,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5388.85ms. Allocated memory was 102.8MB in the beginning and 188.7MB in the end (delta: 86.0MB). Free memory was 67.6MB in the beginning and 101.0MB in the end (delta: -33.5MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2022-07-23 03:09:34,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory was 56.6MB in the beginning and 56.5MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5388.85ms. Allocated memory was 102.8MB in the beginning and 188.7MB in the end (delta: 86.0MB). Free memory was 67.6MB in the beginning and 101.0MB in the end (delta: -33.5MB). Peak memory consumption was 92.0MB. 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-?-791161d [2022-07-23 03:09:36,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:09:36,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:09:36,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:09:36,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:09:36,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:09:36,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:09:36,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:09:36,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:09:36,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:09:36,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:09:36,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:09:36,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:09:36,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:09:36,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:09:36,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:09:36,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:09:36,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:09:36,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:09:36,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:09:36,194 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:09:36,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:09:36,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:09:36,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:09:36,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:09:36,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:09:36,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:09:36,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:09:36,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:09:36,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:09:36,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:09:36,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:09:36,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:09:36,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:09:36,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:09:36,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:09:36,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:09:36,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:09:36,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:09:36,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:09:36,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:09:36,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:09:36,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 03:09:36,254 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:09:36,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:09:36,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:09:36,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:09:36,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:09:36,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:09:36,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:09:36,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:09:36,257 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:09:36,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:09:36,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:09:36,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:09:36,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:09:36,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:09:36,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 03:09:36,271 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 03:09:36,271 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 03:09:36,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:09:36,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:09:36,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:09:36,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:09:36,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:09:36,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:09:36,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:09:36,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:09:36,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:09:36,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:09:36,273 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 03:09:36,274 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 03:09:36,274 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:09:36,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:09:36,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:09:36,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 03:09:36,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-23 03:09:36,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:09:36,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:09:36,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:09:36,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:09:36,579 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:09:36,580 INFO L432 ainManager$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 [2022-07-23 03:09:36,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99fedb72f/2c2ddeb6dcb9444c98751156c48ddde4/FLAGd32bcfce0 [2022-07-23 03:09:37,630 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:09:37,631 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 [2022-07-23 03:09:37,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99fedb72f/2c2ddeb6dcb9444c98751156c48ddde4/FLAGd32bcfce0 [2022-07-23 03:09:38,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99fedb72f/2c2ddeb6dcb9444c98751156c48ddde4 [2022-07-23 03:09:38,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:09:38,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:09:38,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:09:38,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:09:38,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:09:38,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:09:38" (1/1) ... [2022-07-23 03:09:38,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6571f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:38, skipping insertion in model container [2022-07-23 03:09:38,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:09:38" (1/1) ... [2022-07-23 03:09:38,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:09:38,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:09:43,074 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] [2022-07-23 03:09:43,077 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] [2022-07-23 03:09:43,078 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] [2022-07-23 03:09:43,078 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] [2022-07-23 03:09:43,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:09:43,150 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 03:09:43,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:09:43,597 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] [2022-07-23 03:09:43,598 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] [2022-07-23 03:09:43,599 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] [2022-07-23 03:09:43,599 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] [2022-07-23 03:09:43,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:09:43,689 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:09:44,327 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] [2022-07-23 03:09:44,328 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] [2022-07-23 03:09:44,329 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] [2022-07-23 03:09:44,329 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] [2022-07-23 03:09:44,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:09:44,653 INFO L208 MainTranslator]: Completed translation [2022-07-23 03:09:44,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44 WrapperNode [2022-07-23 03:09:44,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 03:09:44,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 03:09:44,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 03:09:44,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 03:09:44,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:44,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,090 INFO L137 Inliner]: procedures = 693, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 9701 [2022-07-23 03:09:45,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 03:09:45,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 03:09:45,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 03:09:45,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 03:09:45,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 03:09:45,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 03:09:45,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 03:09:45,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 03:09:45,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (1/1) ... [2022-07-23 03:09:45,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:09:45,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 03:09:45,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 03:09:45,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 03:09:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-07-23 03:09:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-07-23 03:09:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-23 03:09:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-23 03:09:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-23 03:09:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-23 03:09:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-07-23 03:09:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-07-23 03:09:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-23 03:09:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-23 03:09:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-07-23 03:09:45,701 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-07-23 03:09:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 03:09:45,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 03:09:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 03:09:45,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 03:09:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-07-23 03:09:45,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-07-23 03:09:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-23 03:09:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-23 03:09:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 03:09:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 03:09:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-07-23 03:09:45,703 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-07-23 03:09:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 03:09:45,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 03:09:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-23 03:09:45,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-23 03:09:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 03:09:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 03:09:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-23 03:09:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-23 03:09:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-07-23 03:09:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-07-23 03:09:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 03:09:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 03:09:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-23 03:09:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-23 03:09:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-07-23 03:09:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-07-23 03:09:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-07-23 03:09:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-07-23 03:09:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-07-23 03:09:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-07-23 03:09:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 03:09:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 03:09:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 03:09:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 03:09:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 03:09:45,708 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 03:09:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-23 03:09:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-23 03:09:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 03:09:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 03:09:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 03:09:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 03:09:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 03:09:45,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 03:09:45,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 03:09:45,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 03:09:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-23 03:09:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-23 03:09:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 03:09:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-23 03:09:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-23 03:09:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-07-23 03:09:45,711 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-07-23 03:09:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 03:09:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 03:09:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 03:09:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 03:09:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-23 03:09:45,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-23 03:09:45,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-23 03:09:45,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-23 03:09:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-07-23 03:09:45,713 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-07-23 03:09:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 03:09:45,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 03:09:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-07-23 03:09:45,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-07-23 03:09:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-07-23 03:09:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-07-23 03:09:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-07-23 03:09:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-07-23 03:09:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-07-23 03:09:45,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-07-23 03:09:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 03:09:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 03:09:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 03:09:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 03:09:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-07-23 03:09:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-07-23 03:09:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 03:09:45,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 03:09:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-23 03:09:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-23 03:09:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 03:09:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 03:09:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 03:09:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 03:09:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 03:09:45,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 03:09:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-23 03:09:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-23 03:09:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 03:09:45,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 03:09:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 03:09:45,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 03:09:45,723 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 03:09:45,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 03:09:45,723 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-07-23 03:09:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-07-23 03:09:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 03:09:45,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 03:09:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 03:09:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 03:09:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-23 03:09:45,729 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-23 03:09:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 03:09:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 03:09:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 03:09:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 03:09:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 03:09:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-07-23 03:09:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-07-23 03:09:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-23 03:09:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-23 03:09:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 03:09:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 03:09:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 03:09:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 03:09:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 03:09:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 03:09:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-23 03:09:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-23 03:09:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-23 03:09:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-23 03:09:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-23 03:09:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-23 03:09:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-07-23 03:09:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-07-23 03:09:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-07-23 03:09:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-07-23 03:09:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 03:09:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 03:09:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-23 03:09:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-23 03:09:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 03:09:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 03:09:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-07-23 03:09:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-07-23 03:09:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 03:09:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 03:09:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-07-23 03:09:45,735 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-07-23 03:09:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-23 03:09:45,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-23 03:09:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-07-23 03:09:45,735 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-07-23 03:09:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-07-23 03:09:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-07-23 03:09:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-07-23 03:09:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-07-23 03:09:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-23 03:09:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-23 03:09:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 03:09:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 03:09:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 03:09:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-07-23 03:09:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-07-23 03:09:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-07-23 03:09:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-07-23 03:09:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-07-23 03:09:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-07-23 03:09:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-07-23 03:09:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-07-23 03:09:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 03:09:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 03:09:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-23 03:09:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-23 03:09:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-23 03:09:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 03:09:45,740 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 03:09:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 03:09:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 03:09:45,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 03:09:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 03:09:45,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 03:09:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 03:09:45,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 03:09:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-23 03:09:45,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-23 03:09:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-07-23 03:09:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-07-23 03:09:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-23 03:09:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-23 03:09:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 03:09:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 03:09:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-07-23 03:09:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-07-23 03:09:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-07-23 03:09:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-07-23 03:09:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 03:09:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 03:09:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-23 03:09:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-23 03:09:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-23 03:09:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-23 03:09:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-07-23 03:09:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-07-23 03:09:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-07-23 03:09:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-07-23 03:09:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-23 03:09:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-23 03:09:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 03:09:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 03:09:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-07-23 03:09:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-07-23 03:09:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-23 03:09:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-23 03:09:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-07-23 03:09:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-07-23 03:09:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-23 03:09:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-23 03:09:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 03:09:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 03:09:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 03:09:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-23 03:09:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-23 03:09:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-07-23 03:09:45,750 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-07-23 03:09:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-07-23 03:09:45,751 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-07-23 03:09:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 03:09:45,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 03:09:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 03:09:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-07-23 03:09:45,752 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-07-23 03:09:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-23 03:09:45,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-23 03:09:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 03:09:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 03:09:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-07-23 03:09:45,752 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-07-23 03:09:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 03:09:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 03:09:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 03:09:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-23 03:09:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-23 03:09:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-07-23 03:09:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-07-23 03:09:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-23 03:09:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-23 03:09:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-23 03:09:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-23 03:09:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-07-23 03:09:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-07-23 03:09:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 03:09:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 03:09:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 03:09:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 03:09:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 03:09:45,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 03:09:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-07-23 03:09:45,755 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-07-23 03:09:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-23 03:09:45,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-23 03:09:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-07-23 03:09:45,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-07-23 03:09:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-07-23 03:09:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-07-23 03:09:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-07-23 03:09:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-07-23 03:09:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-07-23 03:09:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-07-23 03:09:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 03:09:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 03:09:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 03:09:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 03:09:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-23 03:09:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-23 03:09:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-07-23 03:09:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-07-23 03:09:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 03:09:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 03:09:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-07-23 03:09:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-07-23 03:09:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 03:09:45,758 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 03:09:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-07-23 03:09:45,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-07-23 03:09:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-07-23 03:09:45,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-07-23 03:09:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-23 03:09:45,758 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-23 03:09:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 03:09:45,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 03:09:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-07-23 03:09:45,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-07-23 03:09:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-07-23 03:09:45,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-07-23 03:09:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 03:09:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 03:09:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 03:09:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 03:09:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 03:09:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 03:09:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-07-23 03:09:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-07-23 03:09:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-23 03:09:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-23 03:09:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-23 03:09:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-23 03:09:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-07-23 03:09:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-07-23 03:09:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-23 03:09:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-23 03:09:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-07-23 03:09:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-07-23 03:09:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-07-23 03:09:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-07-23 03:09:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-07-23 03:09:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-07-23 03:09:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-07-23 03:09:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-07-23 03:09:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 03:09:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 03:09:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-23 03:09:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-23 03:09:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-07-23 03:09:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-07-23 03:09:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-07-23 03:09:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-07-23 03:09:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-07-23 03:09:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-07-23 03:09:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-23 03:09:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-23 03:09:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-23 03:09:45,764 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-23 03:09:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-07-23 03:09:45,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-07-23 03:09:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 03:09:45,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 03:09:46,969 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 03:09:46,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 03:09:47,559 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 03:10:44,204 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 03:10:44,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 03:10:44,231 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 03:10:44,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:10:44 BoogieIcfgContainer [2022-07-23 03:10:44,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 03:10:44,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 03:10:44,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 03:10:44,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 03:10:44,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 03:09:38" (1/3) ... [2022-07-23 03:10:44,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769a242a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:10:44, skipping insertion in model container [2022-07-23 03:10:44,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:09:44" (2/3) ... [2022-07-23 03:10:44,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769a242a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:10:44, skipping insertion in model container [2022-07-23 03:10:44,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:10:44" (3/3) ... [2022-07-23 03:10:44,244 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-23 03:10:44,352 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 03:10:44,358 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-23 03:10:44,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 03:10:44,469 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@1815e06b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@767354dd [2022-07-23 03:10:44,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-23 03:10:44,485 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) [2022-07-23 03:10:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 03:10:44,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:10:44,503 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] [2022-07-23 03:10:44,503 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)] === [2022-07-23 03:10:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:10:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash 641900107, now seen corresponding path program 1 times [2022-07-23 03:10:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:10:44,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764183010] [2022-07-23 03:10:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:10:44,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:10:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:10:44,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:10:44,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 03:10:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:10:46,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:10:46,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:10:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 03:10:47,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:10:47,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:10:47,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764183010] [2022-07-23 03:10:47,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764183010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:10:47,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:10:47,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 03:10:47,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317882408] [2022-07-23 03:10:47,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:10:47,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:10:47,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:10:47,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:10:47,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 03:10:47,581 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) [2022-07-23 03:10:48,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:10:48,393 INFO L93 Difference]: Finished difference Result 7449 states and 10625 transitions. [2022-07-23 03:10:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 03:10:48,396 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 [2022-07-23 03:10:48,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:10:48,444 INFO L225 Difference]: With dead ends: 7449 [2022-07-23 03:10:48,444 INFO L226 Difference]: Without dead ends: 3723 [2022-07-23 03:10:48,475 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 [2022-07-23 03:10:48,481 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:10:48,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 15722 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:10:48,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2022-07-23 03:10:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2022-07-23 03:10:48,780 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) [2022-07-23 03:10:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5232 transitions. [2022-07-23 03:10:48,817 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5232 transitions. Word has length 48 [2022-07-23 03:10:48,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:10:48,818 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5232 transitions. [2022-07-23 03:10:48,819 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) [2022-07-23 03:10:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5232 transitions. [2022-07-23 03:10:48,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 03:10:48,822 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:10:48,822 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] [2022-07-23 03:10:48,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 03:10:49,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:10:49,043 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)] === [2022-07-23 03:10:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:10:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash 802517195, now seen corresponding path program 1 times [2022-07-23 03:10:49,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:10:49,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380261423] [2022-07-23 03:10:49,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:10:49,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:10:49,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:10:49,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:10:49,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 03:10:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:10:51,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:10:51,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:10:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 03:10:52,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:10:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 03:10:52,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:10:52,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380261423] [2022-07-23 03:10:52,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380261423] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:10:52,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:10:52,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:10:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203850126] [2022-07-23 03:10:52,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:10:52,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:10:52,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:10:52,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:10:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:10:52,712 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) [2022-07-23 03:10:53,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:10:53,509 INFO L93 Difference]: Finished difference Result 3729 states and 5237 transitions. [2022-07-23 03:10:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:10:53,510 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 [2022-07-23 03:10:53,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:10:53,532 INFO L225 Difference]: With dead ends: 3729 [2022-07-23 03:10:53,532 INFO L226 Difference]: Without dead ends: 3727 [2022-07-23 03:10:53,534 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 [2022-07-23 03:10:53,535 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 [2022-07-23 03:10:53,535 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] [2022-07-23 03:10:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2022-07-23 03:10:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3727. [2022-07-23 03:10:53,710 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) [2022-07-23 03:10:53,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5235 transitions. [2022-07-23 03:10:53,744 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5235 transitions. Word has length 53 [2022-07-23 03:10:53,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:10:53,744 INFO L495 AbstractCegarLoop]: Abstraction has 3727 states and 5235 transitions. [2022-07-23 03:10:53,745 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) [2022-07-23 03:10:53,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5235 transitions. [2022-07-23 03:10:53,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 03:10:53,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:10:53,753 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] [2022-07-23 03:10:53,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 03:10:53,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:10:53,972 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)] === [2022-07-23 03:10:53,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:10:53,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2051062261, now seen corresponding path program 1 times [2022-07-23 03:10:53,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:10:53,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782558834] [2022-07-23 03:10:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:10:53,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:10:53,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:10:53,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:10:53,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 03:10:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:10:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:10:55,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:10:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 03:10:56,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:10:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 03:10:57,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:10:57,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782558834] [2022-07-23 03:10:57,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782558834] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:10:57,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:10:57,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:10:57,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322310716] [2022-07-23 03:10:57,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:10:57,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:10:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:10:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:10:57,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:10:57,561 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) [2022-07-23 03:10:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:10:58,342 INFO L93 Difference]: Finished difference Result 3733 states and 5240 transitions. [2022-07-23 03:10:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:10:58,343 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 [2022-07-23 03:10:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:10:58,372 INFO L225 Difference]: With dead ends: 3733 [2022-07-23 03:10:58,373 INFO L226 Difference]: Without dead ends: 3731 [2022-07-23 03:10:58,378 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 [2022-07-23 03:10:58,380 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 [2022-07-23 03:10:58,381 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] [2022-07-23 03:10:58,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2022-07-23 03:10:58,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3731. [2022-07-23 03:10:58,586 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) [2022-07-23 03:10:58,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5238 transitions. [2022-07-23 03:10:58,624 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5238 transitions. Word has length 58 [2022-07-23 03:10:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:10:58,626 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 5238 transitions. [2022-07-23 03:10:58,626 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) [2022-07-23 03:10:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5238 transitions. [2022-07-23 03:10:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-23 03:10:58,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:10:58,629 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] [2022-07-23 03:10:58,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 03:10:58,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:10:58,852 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)] === [2022-07-23 03:10:58,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:10:58,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1594216587, now seen corresponding path program 1 times [2022-07-23 03:10:58,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:10:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846099201] [2022-07-23 03:10:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:10:58,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:10:58,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:10:58,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:10:58,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 03:11:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:00,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:00,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-23 03:11:01,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-23 03:11:02,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:02,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846099201] [2022-07-23 03:11:02,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846099201] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:02,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:02,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66516458] [2022-07-23 03:11:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:02,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:02,254 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) [2022-07-23 03:11:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:03,049 INFO L93 Difference]: Finished difference Result 3737 states and 5243 transitions. [2022-07-23 03:11:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:03,050 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 [2022-07-23 03:11:03,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:03,079 INFO L225 Difference]: With dead ends: 3737 [2022-07-23 03:11:03,079 INFO L226 Difference]: Without dead ends: 3735 [2022-07-23 03:11:03,082 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 [2022-07-23 03:11:03,084 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 [2022-07-23 03:11:03,085 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] [2022-07-23 03:11:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2022-07-23 03:11:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3735. [2022-07-23 03:11:03,277 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) [2022-07-23 03:11:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5241 transitions. [2022-07-23 03:11:03,298 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5241 transitions. Word has length 63 [2022-07-23 03:11:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:03,300 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 5241 transitions. [2022-07-23 03:11:03,300 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) [2022-07-23 03:11:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5241 transitions. [2022-07-23 03:11:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 03:11:03,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:03,303 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] [2022-07-23 03:11:03,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:03,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:03,519 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)] === [2022-07-23 03:11:03,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1194398261, now seen corresponding path program 1 times [2022-07-23 03:11:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:03,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704137799] [2022-07-23 03:11:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:03,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:03,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:03,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:03,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 03:11:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:05,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:05,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-23 03:11:06,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-23 03:11:07,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:07,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704137799] [2022-07-23 03:11:07,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704137799] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:07,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:07,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:07,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533683035] [2022-07-23 03:11:07,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:07,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:07,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:07,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:07,085 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) [2022-07-23 03:11:07,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:07,720 INFO L93 Difference]: Finished difference Result 3741 states and 5246 transitions. [2022-07-23 03:11:07,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:07,721 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 [2022-07-23 03:11:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:07,748 INFO L225 Difference]: With dead ends: 3741 [2022-07-23 03:11:07,748 INFO L226 Difference]: Without dead ends: 3739 [2022-07-23 03:11:07,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:11:07,753 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 [2022-07-23 03:11:07,754 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] [2022-07-23 03:11:07,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2022-07-23 03:11:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2022-07-23 03:11:07,923 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) [2022-07-23 03:11:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 5244 transitions. [2022-07-23 03:11:07,946 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 5244 transitions. Word has length 68 [2022-07-23 03:11:07,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:07,946 INFO L495 AbstractCegarLoop]: Abstraction has 3739 states and 5244 transitions. [2022-07-23 03:11:07,946 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) [2022-07-23 03:11:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 5244 transitions. [2022-07-23 03:11:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-23 03:11:07,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:07,948 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] [2022-07-23 03:11:07,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:08,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:08,164 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)] === [2022-07-23 03:11:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:08,164 INFO L85 PathProgramCache]: Analyzing trace with hash 541092142, now seen corresponding path program 1 times [2022-07-23 03:11:08,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:08,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505826289] [2022-07-23 03:11:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:08,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:08,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:08,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:08,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 03:11:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:09,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-23 03:11:09,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-07-23 03:11:11,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-23 03:11:13,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:13,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505826289] [2022-07-23 03:11:13,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505826289] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 03:11:13,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 03:11:13,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-23 03:11:13,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744743283] [2022-07-23 03:11:13,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 03:11:13,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-23 03:11:13,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-23 03:11:13,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-23 03:11:13,670 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) [2022-07-23 03:11:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:22,481 INFO L93 Difference]: Finished difference Result 6085 states and 8472 transitions. [2022-07-23 03:11:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 03:11:22,482 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 [2022-07-23 03:11:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:22,509 INFO L225 Difference]: With dead ends: 6085 [2022-07-23 03:11:22,510 INFO L226 Difference]: Without dead ends: 3753 [2022-07-23 03:11:22,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-23 03:11:22,527 INFO L413 NwaCegarLoop]: 5189 mSDtfsCounter, 42 mSDsluCounter, 77684 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s 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, 6.6s IncrementalHoareTripleChecker+Time [2022-07-23 03:11:22,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 82873 Invalid, 858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-23 03:11:22,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-23 03:11:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3749. [2022-07-23 03:11:22,715 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) [2022-07-23 03:11:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5256 transitions. [2022-07-23 03:11:22,734 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5256 transitions. Word has length 86 [2022-07-23 03:11:22,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:22,734 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 5256 transitions. [2022-07-23 03:11:22,735 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) [2022-07-23 03:11:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5256 transitions. [2022-07-23 03:11:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-23 03:11:22,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:22,736 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] [2022-07-23 03:11:22,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:22,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:22,954 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)] === [2022-07-23 03:11:22,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:22,954 INFO L85 PathProgramCache]: Analyzing trace with hash -24956853, now seen corresponding path program 1 times [2022-07-23 03:11:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:22,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378721262] [2022-07-23 03:11:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:22,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:22,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:22,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 03:11:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:24,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:24,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-23 03:11:25,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:26,537 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-23 03:11:26,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:26,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378721262] [2022-07-23 03:11:26,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378721262] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:26,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:26,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:26,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675343248] [2022-07-23 03:11:26,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:26,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:26,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:26,540 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) [2022-07-23 03:11:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:27,144 INFO L93 Difference]: Finished difference Result 3755 states and 5261 transitions. [2022-07-23 03:11:27,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:27,145 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 [2022-07-23 03:11:27,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:27,182 INFO L225 Difference]: With dead ends: 3755 [2022-07-23 03:11:27,182 INFO L226 Difference]: Without dead ends: 3753 [2022-07-23 03:11:27,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:11:27,187 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 [2022-07-23 03:11:27,188 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] [2022-07-23 03:11:27,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-23 03:11:27,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-23 03:11:27,426 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) [2022-07-23 03:11:27,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5259 transitions. [2022-07-23 03:11:27,446 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5259 transitions. Word has length 73 [2022-07-23 03:11:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:27,447 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5259 transitions. [2022-07-23 03:11:27,447 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) [2022-07-23 03:11:27,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5259 transitions. [2022-07-23 03:11:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-23 03:11:27,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:27,452 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] [2022-07-23 03:11:27,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:27,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:27,668 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)] === [2022-07-23 03:11:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1548642933, now seen corresponding path program 1 times [2022-07-23 03:11:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:27,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954764522] [2022-07-23 03:11:27,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:27,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:27,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:27,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:27,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 03:11:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:29,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:29,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-23 03:11:30,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:31,357 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-23 03:11:31,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:31,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954764522] [2022-07-23 03:11:31,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954764522] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:31,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:31,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:31,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560557160] [2022-07-23 03:11:31,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:31,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:31,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:31,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:31,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:31,359 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) [2022-07-23 03:11:31,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:31,960 INFO L93 Difference]: Finished difference Result 3759 states and 5264 transitions. [2022-07-23 03:11:31,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:31,961 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 [2022-07-23 03:11:31,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:31,982 INFO L225 Difference]: With dead ends: 3759 [2022-07-23 03:11:31,982 INFO L226 Difference]: Without dead ends: 3757 [2022-07-23 03:11:31,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:11:31,986 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 [2022-07-23 03:11:31,986 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] [2022-07-23 03:11:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-07-23 03:11:32,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3757. [2022-07-23 03:11:32,158 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) [2022-07-23 03:11:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5262 transitions. [2022-07-23 03:11:32,180 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5262 transitions. Word has length 78 [2022-07-23 03:11:32,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:32,180 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5262 transitions. [2022-07-23 03:11:32,181 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) [2022-07-23 03:11:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5262 transitions. [2022-07-23 03:11:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-23 03:11:32,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:32,183 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] [2022-07-23 03:11:32,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:32,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:32,396 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)] === [2022-07-23 03:11:32,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:32,397 INFO L85 PathProgramCache]: Analyzing trace with hash -770863093, now seen corresponding path program 1 times [2022-07-23 03:11:32,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:32,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160006180] [2022-07-23 03:11:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:32,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:32,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:32,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:32,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 03:11:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:34,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:34,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-23 03:11:35,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-23 03:11:36,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:36,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160006180] [2022-07-23 03:11:36,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160006180] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:36,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:36,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:36,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311952388] [2022-07-23 03:11:36,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:36,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:36,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:36,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:36,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:36,008 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) [2022-07-23 03:11:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:36,600 INFO L93 Difference]: Finished difference Result 3763 states and 5267 transitions. [2022-07-23 03:11:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:36,604 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 [2022-07-23 03:11:36,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:36,621 INFO L225 Difference]: With dead ends: 3763 [2022-07-23 03:11:36,622 INFO L226 Difference]: Without dead ends: 3761 [2022-07-23 03:11:36,624 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 [2022-07-23 03:11:36,626 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 [2022-07-23 03:11:36,627 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] [2022-07-23 03:11:36,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2022-07-23 03:11:36,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 3761. [2022-07-23 03:11:36,864 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) [2022-07-23 03:11:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5265 transitions. [2022-07-23 03:11:36,881 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5265 transitions. Word has length 83 [2022-07-23 03:11:36,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:36,882 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5265 transitions. [2022-07-23 03:11:36,882 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) [2022-07-23 03:11:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5265 transitions. [2022-07-23 03:11:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-23 03:11:36,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:36,884 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] [2022-07-23 03:11:36,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:37,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:37,102 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)] === [2022-07-23 03:11:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash -626574005, now seen corresponding path program 1 times [2022-07-23 03:11:37,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:37,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227087075] [2022-07-23 03:11:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:37,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:37,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:37,107 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:37,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 03:11:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:38,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:38,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-23 03:11:40,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-23 03:11:41,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:41,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227087075] [2022-07-23 03:11:41,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227087075] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:41,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:41,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:41,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39350543] [2022-07-23 03:11:41,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:41,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:41,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:41,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:41,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:41,072 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) [2022-07-23 03:11:41,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:41,709 INFO L93 Difference]: Finished difference Result 3938 states and 5493 transitions. [2022-07-23 03:11:41,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:41,710 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 [2022-07-23 03:11:41,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:41,727 INFO L225 Difference]: With dead ends: 3938 [2022-07-23 03:11:41,728 INFO L226 Difference]: Without dead ends: 3936 [2022-07-23 03:11:41,730 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 [2022-07-23 03:11:41,731 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 [2022-07-23 03:11:41,732 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] [2022-07-23 03:11:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-07-23 03:11:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3934. [2022-07-23 03:11:41,918 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) [2022-07-23 03:11:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5490 transitions. [2022-07-23 03:11:41,937 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5490 transitions. Word has length 88 [2022-07-23 03:11:41,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:41,938 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5490 transitions. [2022-07-23 03:11:41,938 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) [2022-07-23 03:11:41,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5490 transitions. [2022-07-23 03:11:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-23 03:11:41,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:41,940 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] [2022-07-23 03:11:41,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:42,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:42,164 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)] === [2022-07-23 03:11:42,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:42,164 INFO L85 PathProgramCache]: Analyzing trace with hash -312152117, now seen corresponding path program 1 times [2022-07-23 03:11:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:42,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088134638] [2022-07-23 03:11:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:42,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:42,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:42,168 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:42,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 03:11:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:43,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:43,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-23 03:11:45,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-23 03:11:45,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:45,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088134638] [2022-07-23 03:11:45,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088134638] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:45,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:45,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:45,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762539592] [2022-07-23 03:11:45,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:45,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:45,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:45,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:45,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:45,792 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) [2022-07-23 03:11:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:46,384 INFO L93 Difference]: Finished difference Result 3940 states and 5495 transitions. [2022-07-23 03:11:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:46,385 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 [2022-07-23 03:11:46,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:46,400 INFO L225 Difference]: With dead ends: 3940 [2022-07-23 03:11:46,400 INFO L226 Difference]: Without dead ends: 3938 [2022-07-23 03:11:46,403 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 [2022-07-23 03:11:46,404 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 [2022-07-23 03:11:46,404 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] [2022-07-23 03:11:46,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-23 03:11:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-23 03:11:46,595 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) [2022-07-23 03:11:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5493 transitions. [2022-07-23 03:11:46,616 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5493 transitions. Word has length 93 [2022-07-23 03:11:46,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:46,618 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5493 transitions. [2022-07-23 03:11:46,618 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) [2022-07-23 03:11:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5493 transitions. [2022-07-23 03:11:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-23 03:11:46,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:46,658 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] [2022-07-23 03:11:46,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:46,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:46,858 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)] === [2022-07-23 03:11:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:46,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1578113781, now seen corresponding path program 1 times [2022-07-23 03:11:46,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:46,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212361864] [2022-07-23 03:11:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:46,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:46,863 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:46,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 03:11:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:48,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:48,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-23 03:11:49,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-23 03:11:50,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:50,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212361864] [2022-07-23 03:11:50,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212361864] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:50,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:50,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:50,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850142387] [2022-07-23 03:11:50,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:50,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:50,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:50,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:50,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:50,649 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) [2022-07-23 03:11:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:51,236 INFO L93 Difference]: Finished difference Result 3944 states and 5498 transitions. [2022-07-23 03:11:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:51,237 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 [2022-07-23 03:11:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:51,253 INFO L225 Difference]: With dead ends: 3944 [2022-07-23 03:11:51,253 INFO L226 Difference]: Without dead ends: 3942 [2022-07-23 03:11:51,255 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 [2022-07-23 03:11:51,256 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 [2022-07-23 03:11:51,256 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] [2022-07-23 03:11:51,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2022-07-23 03:11:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2022-07-23 03:11:51,450 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) [2022-07-23 03:11:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5496 transitions. [2022-07-23 03:11:51,465 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5496 transitions. Word has length 98 [2022-07-23 03:11:51,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:51,466 INFO L495 AbstractCegarLoop]: Abstraction has 3942 states and 5496 transitions. [2022-07-23 03:11:51,466 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) [2022-07-23 03:11:51,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5496 transitions. [2022-07-23 03:11:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 03:11:51,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:51,469 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] [2022-07-23 03:11:51,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:51,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:51,687 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)] === [2022-07-23 03:11:51,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:51,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1270263925, now seen corresponding path program 1 times [2022-07-23 03:11:51,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:51,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657096160] [2022-07-23 03:11:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:51,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:51,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:51,692 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) [2022-07-23 03:11:51,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 03:11:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:53,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:53,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:54,885 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-23 03:11:54,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:11:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-23 03:11:55,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:11:55,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657096160] [2022-07-23 03:11:55,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657096160] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:11:55,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:11:55,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:11:55,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236373663] [2022-07-23 03:11:55,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:11:55,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:11:55,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:11:55,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:11:55,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:11:55,535 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) [2022-07-23 03:11:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:11:56,088 INFO L93 Difference]: Finished difference Result 3948 states and 5501 transitions. [2022-07-23 03:11:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:11:56,088 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 [2022-07-23 03:11:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:11:56,103 INFO L225 Difference]: With dead ends: 3948 [2022-07-23 03:11:56,104 INFO L226 Difference]: Without dead ends: 3946 [2022-07-23 03:11:56,106 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 [2022-07-23 03:11:56,107 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 [2022-07-23 03:11:56,107 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] [2022-07-23 03:11:56,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-07-23 03:11:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3946. [2022-07-23 03:11:56,301 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) [2022-07-23 03:11:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5499 transitions. [2022-07-23 03:11:56,316 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 5499 transitions. Word has length 103 [2022-07-23 03:11:56,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:11:56,316 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 5499 transitions. [2022-07-23 03:11:56,317 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) [2022-07-23 03:11:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 5499 transitions. [2022-07-23 03:11:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-23 03:11:56,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:11:56,318 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] [2022-07-23 03:11:56,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 03:11:56,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:11:56,531 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)] === [2022-07-23 03:11:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:11:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash -305427253, now seen corresponding path program 1 times [2022-07-23 03:11:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:11:56,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557195392] [2022-07-23 03:11:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:11:56,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:11:56,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:11:56,536 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:11:56,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 03:11:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:11:58,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:11:58,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:11:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-23 03:11:59,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:12:00,370 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-23 03:12:00,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:00,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557195392] [2022-07-23 03:12:00,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557195392] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:12:00,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:12:00,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:12:00,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308870704] [2022-07-23 03:12:00,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:00,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:12:00,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:00,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:12:00,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:12:00,372 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) [2022-07-23 03:12:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:00,903 INFO L93 Difference]: Finished difference Result 3952 states and 5504 transitions. [2022-07-23 03:12:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:12:00,904 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 [2022-07-23 03:12:00,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:00,919 INFO L225 Difference]: With dead ends: 3952 [2022-07-23 03:12:00,919 INFO L226 Difference]: Without dead ends: 3950 [2022-07-23 03:12:00,922 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 [2022-07-23 03:12:00,923 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 [2022-07-23 03:12:00,923 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] [2022-07-23 03:12:00,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2022-07-23 03:12:01,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3950. [2022-07-23 03:12:01,125 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) [2022-07-23 03:12:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5502 transitions. [2022-07-23 03:12:01,139 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5502 transitions. Word has length 108 [2022-07-23 03:12:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:01,140 INFO L495 AbstractCegarLoop]: Abstraction has 3950 states and 5502 transitions. [2022-07-23 03:12:01,140 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) [2022-07-23 03:12:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5502 transitions. [2022-07-23 03:12:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-23 03:12:01,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:01,142 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] [2022-07-23 03:12:01,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:01,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:01,364 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)] === [2022-07-23 03:12:01,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash -629493941, now seen corresponding path program 1 times [2022-07-23 03:12:01,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:01,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159061176] [2022-07-23 03:12:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:01,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:01,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:01,367 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:12:01,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 03:12:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:02,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:12:02,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-23 03:12:04,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:12:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-23 03:12:05,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:05,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159061176] [2022-07-23 03:12:05,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159061176] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:12:05,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:12:05,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:12:05,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313895372] [2022-07-23 03:12:05,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:05,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:12:05,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:05,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:12:05,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:12:05,303 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) [2022-07-23 03:12:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:05,821 INFO L93 Difference]: Finished difference Result 3956 states and 5507 transitions. [2022-07-23 03:12:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:12:05,822 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 [2022-07-23 03:12:05,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:05,839 INFO L225 Difference]: With dead ends: 3956 [2022-07-23 03:12:05,839 INFO L226 Difference]: Without dead ends: 3954 [2022-07-23 03:12:05,842 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 [2022-07-23 03:12:05,843 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 [2022-07-23 03:12:05,843 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] [2022-07-23 03:12:05,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-07-23 03:12:06,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3954. [2022-07-23 03:12:06,064 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) [2022-07-23 03:12:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5505 transitions. [2022-07-23 03:12:06,081 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5505 transitions. Word has length 113 [2022-07-23 03:12:06,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:06,082 INFO L495 AbstractCegarLoop]: Abstraction has 3954 states and 5505 transitions. [2022-07-23 03:12:06,083 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) [2022-07-23 03:12:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5505 transitions. [2022-07-23 03:12:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-23 03:12:06,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:06,085 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] [2022-07-23 03:12:06,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:06,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:06,300 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)] === [2022-07-23 03:12:06,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1652176011, now seen corresponding path program 1 times [2022-07-23 03:12:06,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:06,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141833703] [2022-07-23 03:12:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:06,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:06,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:06,303 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) [2022-07-23 03:12:06,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 03:12:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:07,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:12:07,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:09,580 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-23 03:12:09,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:12:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-23 03:12:10,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:10,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141833703] [2022-07-23 03:12:10,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141833703] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:12:10,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:12:10,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:12:10,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217605274] [2022-07-23 03:12:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:10,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:12:10,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:12:10,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:12:10,271 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) [2022-07-23 03:12:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:10,814 INFO L93 Difference]: Finished difference Result 3960 states and 5510 transitions. [2022-07-23 03:12:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:12:10,814 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 [2022-07-23 03:12:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:10,828 INFO L225 Difference]: With dead ends: 3960 [2022-07-23 03:12:10,829 INFO L226 Difference]: Without dead ends: 3956 [2022-07-23 03:12:10,830 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 [2022-07-23 03:12:10,831 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, 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:12:10,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5198 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:12:10,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2022-07-23 03:12:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3956. [2022-07-23 03:12:11,052 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) [2022-07-23 03:12:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 5506 transitions. [2022-07-23 03:12:11,067 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 5506 transitions. Word has length 118 [2022-07-23 03:12:11,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:11,068 INFO L495 AbstractCegarLoop]: Abstraction has 3956 states and 5506 transitions. [2022-07-23 03:12:11,068 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) [2022-07-23 03:12:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 5506 transitions. [2022-07-23 03:12:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-23 03:12:11,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:11,070 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] [2022-07-23 03:12:11,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:11,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:11,283 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)] === [2022-07-23 03:12:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1673072395, now seen corresponding path program 1 times [2022-07-23 03:12:11,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:11,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103547578] [2022-07-23 03:12:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:11,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:11,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:11,295 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) [2022-07-23 03:12:11,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 03:12:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:12,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:12:12,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 03:12:14,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:12:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 03:12:15,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:15,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103547578] [2022-07-23 03:12:15,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103547578] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:12:15,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:12:15,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:12:15,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550398860] [2022-07-23 03:12:15,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:15,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:12:15,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:12:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:12:15,352 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) [2022-07-23 03:12:15,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:15,992 INFO L93 Difference]: Finished difference Result 7874 states and 10961 transitions. [2022-07-23 03:12:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 03:12:15,992 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 [2022-07-23 03:12:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:16,025 INFO L225 Difference]: With dead ends: 7874 [2022-07-23 03:12:16,026 INFO L226 Difference]: Without dead ends: 7762 [2022-07-23 03:12:16,032 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 [2022-07-23 03:12:16,032 INFO L413 NwaCegarLoop]: 6568 mSDtfsCounter, 5196 mSDsluCounter, 18299 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 03:12:16,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 24867 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 03:12:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2022-07-23 03:12:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 7755. [2022-07-23 03:12:16,575 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) [2022-07-23 03:12:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10836 transitions. [2022-07-23 03:12:16,609 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10836 transitions. Word has length 123 [2022-07-23 03:12:16,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:16,609 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10836 transitions. [2022-07-23 03:12:16,609 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) [2022-07-23 03:12:16,609 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10836 transitions. [2022-07-23 03:12:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-23 03:12:16,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:16,614 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] [2022-07-23 03:12:16,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:16,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:16,836 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)] === [2022-07-23 03:12:16,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:16,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1096775537, now seen corresponding path program 1 times [2022-07-23 03:12:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:16,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503317117] [2022-07-23 03:12:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:16,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:16,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:16,840 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) [2022-07-23 03:12:16,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 03:12:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:18,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-23 03:12:18,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2022-07-23 03:12:19,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:12:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-07-23 03:12:21,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:21,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503317117] [2022-07-23 03:12:21,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503317117] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 03:12:21,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 03:12:21,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-23 03:12:21,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281778143] [2022-07-23 03:12:21,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 03:12:21,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 03:12:21,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:21,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 03:12:21,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 03:12:21,048 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) [2022-07-23 03:12:24,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:24,833 INFO L93 Difference]: Finished difference Result 15501 states and 21658 transitions. [2022-07-23 03:12:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 03:12:24,835 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 [2022-07-23 03:12:24,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:24,860 INFO L225 Difference]: With dead ends: 15501 [2022-07-23 03:12:24,861 INFO L226 Difference]: Without dead ends: 7759 [2022-07-23 03:12:24,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 412 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-23 03:12:24,893 INFO L413 NwaCegarLoop]: 5192 mSDtfsCounter, 1257 mSDsluCounter, 34538 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-07-23 03:12:24,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 39730 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-23 03:12:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7759 states. [2022-07-23 03:12:25,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7759 to 7755. [2022-07-23 03:12:25,363 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) [2022-07-23 03:12:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10835 transitions. [2022-07-23 03:12:25,398 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10835 transitions. Word has length 212 [2022-07-23 03:12:25,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:25,399 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10835 transitions. [2022-07-23 03:12:25,399 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) [2022-07-23 03:12:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10835 transitions. [2022-07-23 03:12:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-23 03:12:25,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:25,402 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] [2022-07-23 03:12:25,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:25,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:25,624 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)] === [2022-07-23 03:12:25,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:25,624 INFO L85 PathProgramCache]: Analyzing trace with hash 34564430, now seen corresponding path program 1 times [2022-07-23 03:12:25,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:25,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637726324] [2022-07-23 03:12:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:25,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:25,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:25,628 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) [2022-07-23 03:12:25,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-23 03:12:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:28,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-23 03:12:28,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-07-23 03:12:29,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:12:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-23 03:12:31,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:31,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637726324] [2022-07-23 03:12:31,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637726324] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 03:12:31,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 03:12:31,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-07-23 03:12:31,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161802466] [2022-07-23 03:12:31,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 03:12:31,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 03:12:31,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 03:12:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-23 03:12:31,371 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) [2022-07-23 03:12:35,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:35,482 INFO L93 Difference]: Finished difference Result 8185 states and 11334 transitions. [2022-07-23 03:12:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 03:12:35,483 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 [2022-07-23 03:12:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:35,513 INFO L225 Difference]: With dead ends: 8185 [2022-07-23 03:12:35,513 INFO L226 Difference]: Without dead ends: 7767 [2022-07-23 03:12:35,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-23 03:12:35,520 INFO L413 NwaCegarLoop]: 5199 mSDtfsCounter, 54 mSDsluCounter, 46611 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s 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, 3.5s IncrementalHoareTripleChecker+Time [2022-07-23 03:12:35,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 51810 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-23 03:12:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2022-07-23 03:12:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7755. [2022-07-23 03:12:35,958 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) [2022-07-23 03:12:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10833 transitions. [2022-07-23 03:12:35,990 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10833 transitions. Word has length 216 [2022-07-23 03:12:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:35,991 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10833 transitions. [2022-07-23 03:12:35,991 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) [2022-07-23 03:12:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10833 transitions. [2022-07-23 03:12:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-23 03:12:35,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:35,995 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] [2022-07-23 03:12:36,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:36,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:36,212 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)] === [2022-07-23 03:12:36,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:36,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1447891691, now seen corresponding path program 1 times [2022-07-23 03:12:36,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:36,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314562637] [2022-07-23 03:12:36,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:36,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:36,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:36,216 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) [2022-07-23 03:12:36,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-23 03:12:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:38,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 03:12:38,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-07-23 03:12:41,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:12:41,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:41,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314562637] [2022-07-23 03:12:41,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314562637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:12:41,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:12:41,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 03:12:41,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186257461] [2022-07-23 03:12:41,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:41,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:12:41,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:41,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:12:41,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 03:12:41,585 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) [2022-07-23 03:12:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:42,001 INFO L93 Difference]: Finished difference Result 7757 states and 10834 transitions. [2022-07-23 03:12:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 03:12:42,002 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 [2022-07-23 03:12:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:42,034 INFO L225 Difference]: With dead ends: 7757 [2022-07-23 03:12:42,034 INFO L226 Difference]: Without dead ends: 7755 [2022-07-23 03:12:42,040 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 [2022-07-23 03:12:42,043 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 [2022-07-23 03:12:42,043 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] [2022-07-23 03:12:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7755 states. [2022-07-23 03:12:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7755 to 7753. [2022-07-23 03:12:42,572 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) [2022-07-23 03:12:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7753 states to 7753 states and 10830 transitions. [2022-07-23 03:12:42,605 INFO L78 Accepts]: Start accepts. Automaton has 7753 states and 10830 transitions. Word has length 220 [2022-07-23 03:12:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:42,606 INFO L495 AbstractCegarLoop]: Abstraction has 7753 states and 10830 transitions. [2022-07-23 03:12:42,606 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) [2022-07-23 03:12:42,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7753 states and 10830 transitions. [2022-07-23 03:12:42,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-23 03:12:42,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:42,615 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] [2022-07-23 03:12:42,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:42,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:42,832 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)] === [2022-07-23 03:12:42,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:42,832 INFO L85 PathProgramCache]: Analyzing trace with hash 660255781, now seen corresponding path program 1 times [2022-07-23 03:12:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:42,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721365509] [2022-07-23 03:12:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:42,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:42,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:42,836 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) [2022-07-23 03:12:42,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-23 03:12:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:45,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:12:45,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-23 03:12:45,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:12:45,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:45,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721365509] [2022-07-23 03:12:45,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721365509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:12:45,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:12:45,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:12:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658627893] [2022-07-23 03:12:45,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:45,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:12:45,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:12:45,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:12:45,715 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) [2022-07-23 03:12:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:12:46,078 INFO L93 Difference]: Finished difference Result 15557 states and 22055 transitions. [2022-07-23 03:12:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:12:46,078 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 [2022-07-23 03:12:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:12:46,107 INFO L225 Difference]: With dead ends: 15557 [2022-07-23 03:12:46,107 INFO L226 Difference]: Without dead ends: 7821 [2022-07-23 03:12:46,150 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 [2022-07-23 03:12:46,151 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 [2022-07-23 03:12:46,151 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] [2022-07-23 03:12:46,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2022-07-23 03:12:46,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7757. [2022-07-23 03:12:46,646 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) [2022-07-23 03:12:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 10834 transitions. [2022-07-23 03:12:46,765 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 10834 transitions. Word has length 300 [2022-07-23 03:12:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:12:46,765 INFO L495 AbstractCegarLoop]: Abstraction has 7757 states and 10834 transitions. [2022-07-23 03:12:46,766 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) [2022-07-23 03:12:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 10834 transitions. [2022-07-23 03:12:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-23 03:12:46,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:12:46,772 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] [2022-07-23 03:12:46,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-23 03:12:46,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:12:46,988 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)] === [2022-07-23 03:12:46,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:12:46,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2090535692, now seen corresponding path program 1 times [2022-07-23 03:12:46,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:12:46,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652927807] [2022-07-23 03:12:46,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:12:46,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:12:46,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:12:46,991 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) [2022-07-23 03:12:46,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-23 03:12:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:12:49,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-23 03:12:49,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:12:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-23 03:12:53,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:12:53,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:12:53,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652927807] [2022-07-23 03:12:53,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652927807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:12:53,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:12:53,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 03:12:53,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501428583] [2022-07-23 03:12:53,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:12:53,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 03:12:53,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:12:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 03:12:53,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-23 03:12:53,442 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) [2022-07-23 03:12:59,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:13:01,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:13:05,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:13:07,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:13:12,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []