./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 eb692b52 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-?-eb692b5 [2022-07-20 02:54:43,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:54:43,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:54:43,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:54:43,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:54:43,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:54:43,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:54:43,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:54:43,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:54:43,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:54:43,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:54:43,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:54:43,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:54:43,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:54:43,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:54:43,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:54:43,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:54:43,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:54:43,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:54:43,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:54:43,199 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:54:43,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:54:43,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:54:43,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:54:43,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:54:43,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:54:43,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:54:43,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:54:43,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:54:43,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:54:43,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:54:43,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:54:43,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:54:43,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:54:43,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:54:43,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:54:43,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:54:43,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:54:43,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:54:43,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:54:43,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:54:43,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:54:43,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:54:43,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:54:43,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:54:43,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:54:43,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:54:43,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:54:43,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:54:43,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:54:43,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:54:43,242 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:54:43,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:54:43,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:54:43,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:54:43,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:54:43,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:54:43,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:54:43,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:54:43,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:54:43,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:54:43,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:54:43,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:54:43,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:54:43,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:54:43,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:54:43,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:54:43,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:54:43,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:54:43,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:54:43,246 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:54:43,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:54:43,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:54:43,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-20 02:54:43,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:54:43,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:54:43,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:54:43,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:54:43,492 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:54:43,492 INFO L432 ainManager$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 [2022-07-20 02:54:43,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347122068/7b194419995b49da9d053ada15468eaf/FLAG3c65182b2 [2022-07-20 02:54:44,235 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:54:44,235 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 [2022-07-20 02:54:44,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347122068/7b194419995b49da9d053ada15468eaf/FLAG3c65182b2 [2022-07-20 02:54:44,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347122068/7b194419995b49da9d053ada15468eaf [2022-07-20 02:54:44,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:54:44,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:54:44,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:54:44,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:54:44,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:54:44,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:54:44" (1/1) ... [2022-07-20 02:54:44,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf7b4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:44, skipping insertion in model container [2022-07-20 02:54:44,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:54:44" (1/1) ... [2022-07-20 02:54:44,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:54:44,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:54:48,176 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] [2022-07-20 02:54:48,178 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] [2022-07-20 02:54:48,179 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] [2022-07-20 02:54:48,179 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] [2022-07-20 02:54:48,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:54:48,234 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:54:48,336 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) [2022-07-20 02:54:48,345 INFO L158 Benchmark]: Toolchain (without parser) took 3775.92ms. Allocated memory was 142.6MB in the beginning and 230.7MB in the end (delta: 88.1MB). Free memory was 92.9MB in the beginning and 104.1MB in the end (delta: -11.3MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2022-07-20 02:54:48,345 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 02:54:48,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3774.27ms. Allocated memory was 142.6MB in the beginning and 230.7MB in the end (delta: 88.1MB). Free memory was 92.9MB in the beginning and 104.1MB in the end (delta: -11.3MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2022-07-20 02:54:48,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3774.27ms. Allocated memory was 142.6MB in the beginning and 230.7MB in the end (delta: 88.1MB). Free memory was 92.9MB in the beginning and 104.1MB in the end (delta: -11.3MB). Peak memory consumption was 83.1MB. 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-?-eb692b5 [2022-07-20 02:54:50,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:54:50,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:54:50,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:54:50,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:54:50,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:54:50,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:54:50,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:54:50,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:54:50,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:54:50,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:54:50,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:54:50,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:54:50,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:54:50,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:54:50,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:54:50,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:54:50,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:54:50,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:54:50,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:54:50,160 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:54:50,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:54:50,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:54:50,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:54:50,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:54:50,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:54:50,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:54:50,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:54:50,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:54:50,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:54:50,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:54:50,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:54:50,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:54:50,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:54:50,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:54:50,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:54:50,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:54:50,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:54:50,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:54:50,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:54:50,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:54:50,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:54:50,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 02:54:50,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:54:50,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:54:50,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:54:50,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:54:50,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:54:50,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:54:50,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:54:50,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:54:50,213 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:54:50,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 02:54:50,214 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 02:54:50,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:54:50,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:54:50,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:54:50,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:54:50,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:54:50,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:54:50,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:54:50,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:54:50,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:54:50,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:54:50,216 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 02:54:50,216 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 02:54:50,216 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:54:50,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:54:50,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:54:50,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 02:54:50,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-20 02:54:50,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:54:50,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:54:50,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:54:50,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:54:50,531 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:54:50,532 INFO L432 ainManager$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 [2022-07-20 02:54:50,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428352a2e/37958f1672d740229d813a854c3f0a0d/FLAG06f7fa6a6 [2022-07-20 02:54:51,367 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:54:51,368 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 [2022-07-20 02:54:51,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428352a2e/37958f1672d740229d813a854c3f0a0d/FLAG06f7fa6a6 [2022-07-20 02:54:51,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428352a2e/37958f1672d740229d813a854c3f0a0d [2022-07-20 02:54:51,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:54:51,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:54:51,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:54:51,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:54:51,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:54:51,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:54:51" (1/1) ... [2022-07-20 02:54:51,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d66d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:51, skipping insertion in model container [2022-07-20 02:54:51,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:54:51" (1/1) ... [2022-07-20 02:54:51,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:54:51,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:54:56,188 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] [2022-07-20 02:54:56,190 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] [2022-07-20 02:54:56,195 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] [2022-07-20 02:54:56,196 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] [2022-07-20 02:54:56,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:54:56,279 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 02:54:56,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:54:56,661 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] [2022-07-20 02:54:56,662 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] [2022-07-20 02:54:56,662 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] [2022-07-20 02:54:56,663 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] [2022-07-20 02:54:56,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:54:56,678 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:54:57,138 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] [2022-07-20 02:54:57,138 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] [2022-07-20 02:54:57,138 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] [2022-07-20 02:54:57,139 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] [2022-07-20 02:54:57,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:54:57,406 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:54:57,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57 WrapperNode [2022-07-20 02:54:57,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:54:57,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:54:57,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:54:57,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:54:57,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,751 INFO L137 Inliner]: procedures = 693, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 9701 [2022-07-20 02:54:57,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:54:57,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:54:57,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:54:57,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:54:57,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:57,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:58,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:58,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:54:58,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:54:58,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:54:58,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:54:58,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (1/1) ... [2022-07-20 02:54:58,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:54:58,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:54:58,082 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) [2022-07-20 02:54:58,085 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 [2022-07-20 02:54:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-07-20 02:54:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-07-20 02:54:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-20 02:54:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-20 02:54:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-20 02:54:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-20 02:54:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-07-20 02:54:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-07-20 02:54:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-20 02:54:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-20 02:54:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-07-20 02:54:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-07-20 02:54:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 02:54:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 02:54:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:54:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:54:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-07-20 02:54:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-07-20 02:54:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-20 02:54:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-20 02:54:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:54:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:54:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-07-20 02:54:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-07-20 02:54:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:54:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:54:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-20 02:54:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-20 02:54:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 02:54:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 02:54:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 02:54:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 02:54:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-07-20 02:54:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-07-20 02:54:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 02:54:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 02:54:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-20 02:54:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-20 02:54:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-07-20 02:54:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-07-20 02:54:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-07-20 02:54:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-07-20 02:54:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-07-20 02:54:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-07-20 02:54:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 02:54:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 02:54:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:54:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:54:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 02:54:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 02:54:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 02:54:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 02:54:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 02:54:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 02:54:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:54:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:54:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 02:54:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 02:54:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 02:54:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 02:54:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-20 02:54:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-20 02:54:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:54:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 02:54:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 02:54:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-07-20 02:54:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-07-20 02:54:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 02:54:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 02:54:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 02:54:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 02:54:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-20 02:54:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-20 02:54:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-20 02:54:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-20 02:54:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-07-20 02:54:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-07-20 02:54:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:54:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:54:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-07-20 02:54:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-07-20 02:54:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-07-20 02:54:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-07-20 02:54:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-07-20 02:54:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-07-20 02:54:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-07-20 02:54:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-07-20 02:54:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:54:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:54:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 02:54:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 02:54:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-07-20 02:54:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-07-20 02:54:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:54:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:54:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:54:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:54:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 02:54:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 02:54:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:54:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:54:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 02:54:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 02:54:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-20 02:54:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-20 02:54:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:54:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:54:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:54:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:54:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 02:54:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 02:54:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-07-20 02:54:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-07-20 02:54:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:54:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:54:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:54:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:54:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-20 02:54:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-20 02:54:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:54:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:54:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:54:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:54:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:54:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-07-20 02:54:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-07-20 02:54:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-20 02:54:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-20 02:54:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 02:54:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 02:54:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 02:54:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:54:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:54:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 02:54:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-20 02:54:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-20 02:54:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-20 02:54:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-20 02:54:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 02:54:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 02:54:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-07-20 02:54:58,131 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-07-20 02:54:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-07-20 02:54:58,131 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-07-20 02:54:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:54:58,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:54:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 02:54:58,131 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 02:54:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:54:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:54:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-07-20 02:54:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-07-20 02:54:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:54:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:54:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-07-20 02:54:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-07-20 02:54:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-20 02:54:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-20 02:54:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-07-20 02:54:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-07-20 02:54:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-07-20 02:54:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-07-20 02:54:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-07-20 02:54:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-07-20 02:54:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 02:54:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 02:54:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 02:54:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 02:54:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 02:54:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-07-20 02:54:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-07-20 02:54:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-07-20 02:54:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-07-20 02:54:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-07-20 02:54:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-07-20 02:54:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-07-20 02:54:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-07-20 02:54:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:54:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:54:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-20 02:54:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-20 02:54:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 02:54:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 02:54:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 02:54:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 02:54:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 02:54:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 02:54:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 02:54:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:54:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 02:54:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:54:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:54:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:54:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:54:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:54:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 02:54:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 02:54:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-20 02:54:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-20 02:54:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-07-20 02:54:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-07-20 02:54:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 02:54:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 02:54:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 02:54:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 02:54:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-07-20 02:54:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-07-20 02:54:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-07-20 02:54:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-07-20 02:54:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 02:54:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 02:54:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-20 02:54:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-20 02:54:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-20 02:54:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-20 02:54:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-07-20 02:54:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-07-20 02:54:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-07-20 02:54:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-07-20 02:54:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-20 02:54:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-20 02:54:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:54:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:54:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-07-20 02:54:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-07-20 02:54:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-20 02:54:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-20 02:54:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-07-20 02:54:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-07-20 02:54:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-20 02:54:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-20 02:54:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 02:54:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 02:54:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:54:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-20 02:54:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-20 02:54:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-07-20 02:54:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-07-20 02:54:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-07-20 02:54:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-07-20 02:54:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 02:54:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 02:54:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:54:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-07-20 02:54:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-07-20 02:54:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-20 02:54:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-20 02:54:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 02:54:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 02:54:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-07-20 02:54:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-07-20 02:54:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 02:54:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 02:54:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:54:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-20 02:54:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-20 02:54:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-07-20 02:54:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-07-20 02:54:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-20 02:54:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-20 02:54:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 02:54:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 02:54:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-07-20 02:54:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-07-20 02:54:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:54:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:54:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:54:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:54:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-20 02:54:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-20 02:54:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-07-20 02:54:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-07-20 02:54:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-20 02:54:58,147 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-20 02:54:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-07-20 02:54:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-07-20 02:54:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-07-20 02:54:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-07-20 02:54:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-07-20 02:54:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-07-20 02:54:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-07-20 02:54:58,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-07-20 02:54:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 02:54:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 02:54:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:54:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:54:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-20 02:54:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-20 02:54:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-07-20 02:54:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-07-20 02:54:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 02:54:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 02:54:58,150 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-07-20 02:54:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-07-20 02:54:58,150 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 02:54:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 02:54:58,150 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-07-20 02:54:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-07-20 02:54:58,150 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-07-20 02:54:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-07-20 02:54:58,151 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-20 02:54:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-20 02:54:58,151 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 02:54:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 02:54:58,151 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-07-20 02:54:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-07-20 02:54:58,151 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-07-20 02:54:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:54:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-07-20 02:54:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-07-20 02:54:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 02:54:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 02:54:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-20 02:54:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-20 02:54:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-07-20 02:54:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-07-20 02:54:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-20 02:54:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-20 02:54:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-07-20 02:54:58,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-07-20 02:54:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-07-20 02:54:58,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-07-20 02:54:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-07-20 02:54:58,154 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-07-20 02:54:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-07-20 02:54:58,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-07-20 02:54:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:54:58,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:54:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-20 02:54:58,155 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-20 02:54:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-07-20 02:54:58,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-07-20 02:54:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-07-20 02:54:58,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-07-20 02:54:58,155 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-07-20 02:54:58,155 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-07-20 02:54:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-20 02:54:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-20 02:54:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 02:54:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 02:54:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-07-20 02:54:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-07-20 02:54:58,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:54:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:54:59,199 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:54:59,201 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:54:59,795 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:55:53,359 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:55:53,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:55:53,385 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 02:55:53,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:55:53 BoogieIcfgContainer [2022-07-20 02:55:53,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:55:53,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:55:53,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:55:53,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:55:53,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:54:51" (1/3) ... [2022-07-20 02:55:53,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f43ffd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:55:53, skipping insertion in model container [2022-07-20 02:55:53,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:54:57" (2/3) ... [2022-07-20 02:55:53,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f43ffd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:55:53, skipping insertion in model container [2022-07-20 02:55:53,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:55:53" (3/3) ... [2022-07-20 02:55:53,396 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-20 02:55:53,406 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:55:53,410 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-20 02:55:53,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:55:53,559 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@683ac066, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@357434f9 [2022-07-20 02:55:53,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-20 02:55:53,571 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) [2022-07-20 02:55:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 02:55:53,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:55:53,579 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] [2022-07-20 02:55:53,579 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)] === [2022-07-20 02:55:53,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:55:53,583 INFO L85 PathProgramCache]: Analyzing trace with hash 641900107, now seen corresponding path program 1 times [2022-07-20 02:55:53,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:55:53,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896722122] [2022-07-20 02:55:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:55:53,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:55:53,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:55:53,635 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) [2022-07-20 02:55:53,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 02:55:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:55:55,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:55:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 02:55:56,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:55:56,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:55:56,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896722122] [2022-07-20 02:55:56,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896722122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:55:56,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:55:56,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:55:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559591918] [2022-07-20 02:55:56,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:55:56,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:55:56,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:55:56,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:55:56,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:55:56,348 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) [2022-07-20 02:55:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:55:57,007 INFO L93 Difference]: Finished difference Result 7449 states and 10625 transitions. [2022-07-20 02:55:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:55:57,010 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 [2022-07-20 02:55:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:55:57,035 INFO L225 Difference]: With dead ends: 7449 [2022-07-20 02:55:57,035 INFO L226 Difference]: Without dead ends: 3723 [2022-07-20 02:55:57,053 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 [2022-07-20 02:55:57,055 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 [2022-07-20 02:55:57,055 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] [2022-07-20 02:55:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2022-07-20 02:55:57,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2022-07-20 02:55:57,237 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) [2022-07-20 02:55:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5232 transitions. [2022-07-20 02:55:57,260 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5232 transitions. Word has length 48 [2022-07-20 02:55:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:55:57,261 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5232 transitions. [2022-07-20 02:55:57,261 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) [2022-07-20 02:55:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5232 transitions. [2022-07-20 02:55:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-20 02:55:57,263 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:55:57,263 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] [2022-07-20 02:55:57,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 02:55:57,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:55:57,487 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)] === [2022-07-20 02:55:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:55:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash 802517195, now seen corresponding path program 1 times [2022-07-20 02:55:57,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:55:57,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076696459] [2022-07-20 02:55:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:55:57,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:55:57,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:55:57,493 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) [2022-07-20 02:55:57,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 02:55:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:59,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:55:59,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 02:56:00,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 02:56:00,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:00,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076696459] [2022-07-20 02:56:00,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076696459] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:00,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:00,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777944026] [2022-07-20 02:56:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:00,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:00,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:00,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:00,710 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) [2022-07-20 02:56:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:01,260 INFO L93 Difference]: Finished difference Result 3729 states and 5237 transitions. [2022-07-20 02:56:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:01,260 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 [2022-07-20 02:56:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:01,277 INFO L225 Difference]: With dead ends: 3729 [2022-07-20 02:56:01,278 INFO L226 Difference]: Without dead ends: 3727 [2022-07-20 02:56:01,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:01,280 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 [2022-07-20 02:56:01,280 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] [2022-07-20 02:56:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2022-07-20 02:56:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3727. [2022-07-20 02:56:01,385 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) [2022-07-20 02:56:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5235 transitions. [2022-07-20 02:56:01,408 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5235 transitions. Word has length 53 [2022-07-20 02:56:01,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:01,409 INFO L495 AbstractCegarLoop]: Abstraction has 3727 states and 5235 transitions. [2022-07-20 02:56:01,409 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) [2022-07-20 02:56:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5235 transitions. [2022-07-20 02:56:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-20 02:56:01,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:01,415 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] [2022-07-20 02:56:01,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:01,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:01,642 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)] === [2022-07-20 02:56:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2051062261, now seen corresponding path program 1 times [2022-07-20 02:56:01,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:01,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277182903] [2022-07-20 02:56:01,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:01,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:01,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:01,649 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) [2022-07-20 02:56:01,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 02:56:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:03,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:03,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 02:56:04,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 02:56:04,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:04,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277182903] [2022-07-20 02:56:04,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277182903] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:04,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:04,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135346156] [2022-07-20 02:56:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:04,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:04,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:04,965 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) [2022-07-20 02:56:05,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:05,642 INFO L93 Difference]: Finished difference Result 3733 states and 5240 transitions. [2022-07-20 02:56:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:05,642 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 [2022-07-20 02:56:05,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:05,661 INFO L225 Difference]: With dead ends: 3733 [2022-07-20 02:56:05,661 INFO L226 Difference]: Without dead ends: 3731 [2022-07-20 02:56:05,663 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 [2022-07-20 02:56:05,666 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 [2022-07-20 02:56:05,667 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] [2022-07-20 02:56:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2022-07-20 02:56:05,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3731. [2022-07-20 02:56:05,780 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) [2022-07-20 02:56:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5238 transitions. [2022-07-20 02:56:05,799 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5238 transitions. Word has length 58 [2022-07-20 02:56:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:05,800 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 5238 transitions. [2022-07-20 02:56:05,801 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) [2022-07-20 02:56:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5238 transitions. [2022-07-20 02:56:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 02:56:05,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:05,803 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] [2022-07-20 02:56:05,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:06,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:06,020 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)] === [2022-07-20 02:56:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:06,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1594216587, now seen corresponding path program 1 times [2022-07-20 02:56:06,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:06,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963251896] [2022-07-20 02:56:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:06,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:06,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:06,027 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) [2022-07-20 02:56:06,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 02:56:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:07,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 02:56:08,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 02:56:09,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:09,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963251896] [2022-07-20 02:56:09,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963251896] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:09,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:09,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231725672] [2022-07-20 02:56:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:09,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:09,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:09,234 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) [2022-07-20 02:56:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:09,756 INFO L93 Difference]: Finished difference Result 3737 states and 5243 transitions. [2022-07-20 02:56:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:09,757 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 [2022-07-20 02:56:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:09,777 INFO L225 Difference]: With dead ends: 3737 [2022-07-20 02:56:09,778 INFO L226 Difference]: Without dead ends: 3735 [2022-07-20 02:56:09,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:09,781 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 [2022-07-20 02:56:09,781 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] [2022-07-20 02:56:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2022-07-20 02:56:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3735. [2022-07-20 02:56:10,008 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) [2022-07-20 02:56:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5241 transitions. [2022-07-20 02:56:10,021 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5241 transitions. Word has length 63 [2022-07-20 02:56:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:10,022 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 5241 transitions. [2022-07-20 02:56:10,022 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) [2022-07-20 02:56:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5241 transitions. [2022-07-20 02:56:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-20 02:56:10,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:10,024 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] [2022-07-20 02:56:10,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-20 02:56:10,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:10,252 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)] === [2022-07-20 02:56:10,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:10,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1194398261, now seen corresponding path program 1 times [2022-07-20 02:56:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:10,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870734674] [2022-07-20 02:56:10,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:10,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:10,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:10,271 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) [2022-07-20 02:56:10,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 02:56:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:11,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:11,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-20 02:56:13,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-20 02:56:13,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:13,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870734674] [2022-07-20 02:56:13,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870734674] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:13,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:13,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:13,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735059100] [2022-07-20 02:56:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:13,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:13,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:13,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:13,674 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) [2022-07-20 02:56:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:14,224 INFO L93 Difference]: Finished difference Result 3741 states and 5246 transitions. [2022-07-20 02:56:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:14,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (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 [2022-07-20 02:56:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:14,243 INFO L225 Difference]: With dead ends: 3741 [2022-07-20 02:56:14,243 INFO L226 Difference]: Without dead ends: 3739 [2022-07-20 02:56:14,245 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 [2022-07-20 02:56:14,245 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 [2022-07-20 02:56:14,246 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] [2022-07-20 02:56:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2022-07-20 02:56:14,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2022-07-20 02:56:14,354 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) [2022-07-20 02:56:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 5244 transitions. [2022-07-20 02:56:14,365 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 5244 transitions. Word has length 68 [2022-07-20 02:56:14,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:14,365 INFO L495 AbstractCegarLoop]: Abstraction has 3739 states and 5244 transitions. [2022-07-20 02:56:14,366 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) [2022-07-20 02:56:14,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 5244 transitions. [2022-07-20 02:56:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-20 02:56:14,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:14,367 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] [2022-07-20 02:56:14,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:14,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:14,592 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)] === [2022-07-20 02:56:14,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash 541092142, now seen corresponding path program 1 times [2022-07-20 02:56:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:14,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364016144] [2022-07-20 02:56:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:14,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:14,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:14,595 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) [2022-07-20 02:56:14,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 02:56:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:16,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 02:56:16,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-07-20 02:56:18,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-20 02:56:20,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:20,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364016144] [2022-07-20 02:56:20,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364016144] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:56:20,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:56:20,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-20 02:56:20,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406356543] [2022-07-20 02:56:20,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:56:20,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-20 02:56:20,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:20,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-20 02:56:20,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-20 02:56:20,012 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) [2022-07-20 02:56:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:28,216 INFO L93 Difference]: Finished difference Result 6085 states and 8472 transitions. [2022-07-20 02:56:28,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 02:56:28,217 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 [2022-07-20 02:56:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:28,237 INFO L225 Difference]: With dead ends: 6085 [2022-07-20 02:56:28,238 INFO L226 Difference]: Without dead ends: 3753 [2022-07-20 02:56:28,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-20 02:56:28,247 INFO L413 NwaCegarLoop]: 5189 mSDtfsCounter, 42 mSDsluCounter, 77684 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 82873 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:28,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 82873 Invalid, 858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-20 02:56:28,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-20 02:56:28,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3749. [2022-07-20 02:56:28,358 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) [2022-07-20 02:56:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5256 transitions. [2022-07-20 02:56:28,371 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5256 transitions. Word has length 86 [2022-07-20 02:56:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:28,371 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 5256 transitions. [2022-07-20 02:56:28,371 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) [2022-07-20 02:56:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5256 transitions. [2022-07-20 02:56:28,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-20 02:56:28,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:28,372 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] [2022-07-20 02:56:28,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:28,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:28,587 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)] === [2022-07-20 02:56:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash -24956853, now seen corresponding path program 1 times [2022-07-20 02:56:28,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:28,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449308516] [2022-07-20 02:56:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:28,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:28,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:28,590 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) [2022-07-20 02:56:28,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 02:56:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:30,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:30,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-20 02:56:31,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-20 02:56:32,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:32,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449308516] [2022-07-20 02:56:32,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449308516] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:32,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:32,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186306003] [2022-07-20 02:56:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:32,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:32,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:32,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:32,158 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) [2022-07-20 02:56:32,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:32,682 INFO L93 Difference]: Finished difference Result 3755 states and 5261 transitions. [2022-07-20 02:56:32,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:32,683 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 [2022-07-20 02:56:32,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:32,704 INFO L225 Difference]: With dead ends: 3755 [2022-07-20 02:56:32,704 INFO L226 Difference]: Without dead ends: 3753 [2022-07-20 02:56:32,705 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 [2022-07-20 02:56:32,706 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 [2022-07-20 02:56:32,706 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] [2022-07-20 02:56:32,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-20 02:56:32,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-20 02:56:32,809 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) [2022-07-20 02:56:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5259 transitions. [2022-07-20 02:56:32,818 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5259 transitions. Word has length 73 [2022-07-20 02:56:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:32,820 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5259 transitions. [2022-07-20 02:56:32,820 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) [2022-07-20 02:56:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5259 transitions. [2022-07-20 02:56:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-20 02:56:32,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:32,824 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] [2022-07-20 02:56:32,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:33,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:33,048 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)] === [2022-07-20 02:56:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1548642933, now seen corresponding path program 1 times [2022-07-20 02:56:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:33,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556715181] [2022-07-20 02:56:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:33,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:33,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:33,051 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) [2022-07-20 02:56:33,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 02:56:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:34,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:34,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-20 02:56:35,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:36,320 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-20 02:56:36,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:36,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556715181] [2022-07-20 02:56:36,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556715181] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:36,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:36,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:36,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538307133] [2022-07-20 02:56:36,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:36,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:36,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:36,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:36,322 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) [2022-07-20 02:56:36,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:36,808 INFO L93 Difference]: Finished difference Result 3759 states and 5264 transitions. [2022-07-20 02:56:36,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:36,808 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 [2022-07-20 02:56:36,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:36,823 INFO L225 Difference]: With dead ends: 3759 [2022-07-20 02:56:36,823 INFO L226 Difference]: Without dead ends: 3757 [2022-07-20 02:56:36,824 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 [2022-07-20 02:56:36,825 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 [2022-07-20 02:56:36,825 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] [2022-07-20 02:56:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-07-20 02:56:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3757. [2022-07-20 02:56:36,932 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) [2022-07-20 02:56:36,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5262 transitions. [2022-07-20 02:56:36,945 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5262 transitions. Word has length 78 [2022-07-20 02:56:36,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:36,946 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5262 transitions. [2022-07-20 02:56:36,946 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, (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) [2022-07-20 02:56:36,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5262 transitions. [2022-07-20 02:56:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-20 02:56:36,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:36,948 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] [2022-07-20 02:56:36,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-20 02:56:37,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:37,164 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)] === [2022-07-20 02:56:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash -770863093, now seen corresponding path program 1 times [2022-07-20 02:56:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:37,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687644045] [2022-07-20 02:56:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:37,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:37,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:37,168 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) [2022-07-20 02:56:37,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 02:56:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:38,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:38,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-20 02:56:40,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-20 02:56:40,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:40,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687644045] [2022-07-20 02:56:40,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687644045] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:40,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:40,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:40,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645232549] [2022-07-20 02:56:40,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:40,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:40,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:40,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:40,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:40,793 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) [2022-07-20 02:56:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:41,292 INFO L93 Difference]: Finished difference Result 3763 states and 5267 transitions. [2022-07-20 02:56:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:41,292 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 [2022-07-20 02:56:41,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:41,304 INFO L225 Difference]: With dead ends: 3763 [2022-07-20 02:56:41,304 INFO L226 Difference]: Without dead ends: 3761 [2022-07-20 02:56:41,306 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 [2022-07-20 02:56:41,306 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 [2022-07-20 02:56:41,307 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] [2022-07-20 02:56:41,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2022-07-20 02:56:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 3761. [2022-07-20 02:56:41,496 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) [2022-07-20 02:56:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5265 transitions. [2022-07-20 02:56:41,506 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5265 transitions. Word has length 83 [2022-07-20 02:56:41,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:41,506 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5265 transitions. [2022-07-20 02:56:41,507 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) [2022-07-20 02:56:41,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5265 transitions. [2022-07-20 02:56:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-20 02:56:41,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:41,508 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] [2022-07-20 02:56:41,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-20 02:56:41,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:41,723 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)] === [2022-07-20 02:56:41,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:41,724 INFO L85 PathProgramCache]: Analyzing trace with hash -626574005, now seen corresponding path program 1 times [2022-07-20 02:56:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:41,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64517852] [2022-07-20 02:56:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:41,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:41,729 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) [2022-07-20 02:56:41,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 02:56:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:43,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:43,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-20 02:56:44,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-20 02:56:45,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:45,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64517852] [2022-07-20 02:56:45,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64517852] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:45,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:45,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069020678] [2022-07-20 02:56:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:45,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:45,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:45,266 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) [2022-07-20 02:56:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:45,818 INFO L93 Difference]: Finished difference Result 3938 states and 5493 transitions. [2022-07-20 02:56:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:45,819 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 [2022-07-20 02:56:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:45,831 INFO L225 Difference]: With dead ends: 3938 [2022-07-20 02:56:45,831 INFO L226 Difference]: Without dead ends: 3936 [2022-07-20 02:56:45,834 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 [2022-07-20 02:56:45,834 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, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:45,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 16381 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:56:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-07-20 02:56:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3934. [2022-07-20 02:56:45,968 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) [2022-07-20 02:56:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5490 transitions. [2022-07-20 02:56:45,980 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5490 transitions. Word has length 88 [2022-07-20 02:56:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:45,980 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5490 transitions. [2022-07-20 02:56:45,980 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) [2022-07-20 02:56:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5490 transitions. [2022-07-20 02:56:45,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-20 02:56:45,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:45,982 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] [2022-07-20 02:56:46,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:46,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:46,203 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)] === [2022-07-20 02:56:46,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:46,204 INFO L85 PathProgramCache]: Analyzing trace with hash -312152117, now seen corresponding path program 1 times [2022-07-20 02:56:46,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:46,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636687570] [2022-07-20 02:56:46,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:46,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:46,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:46,210 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) [2022-07-20 02:56:46,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 02:56:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:47,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:47,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-20 02:56:49,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:49,791 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-20 02:56:49,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:49,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636687570] [2022-07-20 02:56:49,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636687570] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:49,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:49,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:49,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871040511] [2022-07-20 02:56:49,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:49,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:49,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:49,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:49,794 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) [2022-07-20 02:56:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:50,305 INFO L93 Difference]: Finished difference Result 3940 states and 5495 transitions. [2022-07-20 02:56:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:50,306 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 [2022-07-20 02:56:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:50,314 INFO L225 Difference]: With dead ends: 3940 [2022-07-20 02:56:50,314 INFO L226 Difference]: Without dead ends: 3938 [2022-07-20 02:56:50,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:50,315 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:50,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:56:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-20 02:56:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-20 02:56:50,427 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) [2022-07-20 02:56:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5493 transitions. [2022-07-20 02:56:50,436 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5493 transitions. Word has length 93 [2022-07-20 02:56:50,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:50,436 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5493 transitions. [2022-07-20 02:56:50,436 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) [2022-07-20 02:56:50,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5493 transitions. [2022-07-20 02:56:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-20 02:56:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:50,437 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] [2022-07-20 02:56:50,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:50,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:50,651 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)] === [2022-07-20 02:56:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1578113781, now seen corresponding path program 1 times [2022-07-20 02:56:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:50,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137199382] [2022-07-20 02:56:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:50,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:50,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:50,654 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) [2022-07-20 02:56:50,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 02:56:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:52,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:52,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-20 02:56:53,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-20 02:56:54,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:54,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137199382] [2022-07-20 02:56:54,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137199382] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:54,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:54,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:54,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537103209] [2022-07-20 02:56:54,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:54,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:54,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:54,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:54,465 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) [2022-07-20 02:56:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:54,968 INFO L93 Difference]: Finished difference Result 3944 states and 5498 transitions. [2022-07-20 02:56:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:54,968 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 [2022-07-20 02:56:54,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:54,981 INFO L225 Difference]: With dead ends: 3944 [2022-07-20 02:56:54,982 INFO L226 Difference]: Without dead ends: 3942 [2022-07-20 02:56:54,984 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 [2022-07-20 02:56:54,985 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 [2022-07-20 02:56:54,985 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] [2022-07-20 02:56:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2022-07-20 02:56:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2022-07-20 02:56:55,126 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) [2022-07-20 02:56:55,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5496 transitions. [2022-07-20 02:56:55,139 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5496 transitions. Word has length 98 [2022-07-20 02:56:55,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:55,140 INFO L495 AbstractCegarLoop]: Abstraction has 3942 states and 5496 transitions. [2022-07-20 02:56:55,140 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, (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) [2022-07-20 02:56:55,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5496 transitions. [2022-07-20 02:56:55,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-20 02:56:55,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:55,142 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] [2022-07-20 02:56:55,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:55,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:55,367 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)] === [2022-07-20 02:56:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1270263925, now seen corresponding path program 1 times [2022-07-20 02:56:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:55,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129891282] [2022-07-20 02:56:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:55,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:55,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:55,379 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) [2022-07-20 02:56:55,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 02:56:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:57,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:57,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-20 02:56:58,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-20 02:56:59,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:59,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129891282] [2022-07-20 02:56:59,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129891282] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:59,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:59,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840281325] [2022-07-20 02:56:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:59,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:59,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:59,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:59,286 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) [2022-07-20 02:56:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:59,766 INFO L93 Difference]: Finished difference Result 3948 states and 5501 transitions. [2022-07-20 02:56:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:59,766 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 [2022-07-20 02:56:59,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:59,799 INFO L225 Difference]: With dead ends: 3948 [2022-07-20 02:56:59,815 INFO L226 Difference]: Without dead ends: 3946 [2022-07-20 02:56:59,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:59,823 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 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 [2022-07-20 02:56:59,823 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] [2022-07-20 02:56:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-07-20 02:56:59,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3946. [2022-07-20 02:56:59,985 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) [2022-07-20 02:56:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5499 transitions. [2022-07-20 02:56:59,997 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 5499 transitions. Word has length 103 [2022-07-20 02:56:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:59,998 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 5499 transitions. [2022-07-20 02:56:59,998 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) [2022-07-20 02:56:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 5499 transitions. [2022-07-20 02:56:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 02:56:59,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:59,999 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] [2022-07-20 02:57:00,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:00,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:00,223 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)] === [2022-07-20 02:57:00,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:00,224 INFO L85 PathProgramCache]: Analyzing trace with hash -305427253, now seen corresponding path program 1 times [2022-07-20 02:57:00,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:00,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427170891] [2022-07-20 02:57:00,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:00,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:00,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:00,236 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) [2022-07-20 02:57:00,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 02:57:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:02,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:57:02,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-20 02:57:03,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:57:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-20 02:57:04,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:04,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427170891] [2022-07-20 02:57:04,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427170891] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:57:04,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:57:04,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:57:04,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897198229] [2022-07-20 02:57:04,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:04,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:57:04,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:04,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:57:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:57:04,012 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) [2022-07-20 02:57:04,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:04,546 INFO L93 Difference]: Finished difference Result 3952 states and 5504 transitions. [2022-07-20 02:57:04,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:57:04,547 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 [2022-07-20 02:57:04,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:04,576 INFO L225 Difference]: With dead ends: 3952 [2022-07-20 02:57:04,576 INFO L226 Difference]: Without dead ends: 3950 [2022-07-20 02:57:04,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:04,580 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 [2022-07-20 02:57:04,580 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] [2022-07-20 02:57:04,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2022-07-20 02:57:04,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3950. [2022-07-20 02:57:04,717 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) [2022-07-20 02:57:04,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5502 transitions. [2022-07-20 02:57:04,728 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5502 transitions. Word has length 108 [2022-07-20 02:57:04,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:04,729 INFO L495 AbstractCegarLoop]: Abstraction has 3950 states and 5502 transitions. [2022-07-20 02:57:04,729 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) [2022-07-20 02:57:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5502 transitions. [2022-07-20 02:57:04,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-20 02:57:04,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:04,731 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] [2022-07-20 02:57:04,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:04,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:04,943 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)] === [2022-07-20 02:57:04,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash -629493941, now seen corresponding path program 1 times [2022-07-20 02:57:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:04,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224621046] [2022-07-20 02:57:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:04,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:04,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:04,946 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) [2022-07-20 02:57:04,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 02:57:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:06,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:57:06,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-20 02:57:08,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:57:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-20 02:57:08,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:08,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224621046] [2022-07-20 02:57:08,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224621046] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:57:08,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:57:08,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:57:08,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325757596] [2022-07-20 02:57:08,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:08,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:57:08,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:08,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:57:08,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:57:08,884 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) [2022-07-20 02:57:09,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:09,373 INFO L93 Difference]: Finished difference Result 3956 states and 5507 transitions. [2022-07-20 02:57:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:57:09,373 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 [2022-07-20 02:57:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:09,384 INFO L225 Difference]: With dead ends: 3956 [2022-07-20 02:57:09,384 INFO L226 Difference]: Without dead ends: 3954 [2022-07-20 02:57:09,386 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 [2022-07-20 02:57:09,387 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:09,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5199 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:57:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-07-20 02:57:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3954. [2022-07-20 02:57:09,582 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) [2022-07-20 02:57:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5505 transitions. [2022-07-20 02:57:09,592 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5505 transitions. Word has length 113 [2022-07-20 02:57:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:09,592 INFO L495 AbstractCegarLoop]: Abstraction has 3954 states and 5505 transitions. [2022-07-20 02:57:09,593 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) [2022-07-20 02:57:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5505 transitions. [2022-07-20 02:57:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-20 02:57:09,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:09,594 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] [2022-07-20 02:57:09,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:09,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:09,817 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)] === [2022-07-20 02:57:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:09,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1652176011, now seen corresponding path program 1 times [2022-07-20 02:57:09,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:09,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455610431] [2022-07-20 02:57:09,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:09,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:09,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:09,823 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) [2022-07-20 02:57:09,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 02:57:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:11,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:57:11,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-20 02:57:13,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:57:13,805 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-20 02:57:13,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:13,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455610431] [2022-07-20 02:57:13,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455610431] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:57:13,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:57:13,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:57:13,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187883391] [2022-07-20 02:57:13,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:13,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:57:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:57:13,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:57:13,807 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) [2022-07-20 02:57:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:14,321 INFO L93 Difference]: Finished difference Result 3960 states and 5510 transitions. [2022-07-20 02:57:14,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:57:14,321 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 [2022-07-20 02:57:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:14,334 INFO L225 Difference]: With dead ends: 3960 [2022-07-20 02:57:14,334 INFO L226 Difference]: Without dead ends: 3956 [2022-07-20 02:57:14,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:14,337 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 [2022-07-20 02:57:14,337 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] [2022-07-20 02:57:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2022-07-20 02:57:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3956. [2022-07-20 02:57:14,484 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) [2022-07-20 02:57:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 5506 transitions. [2022-07-20 02:57:14,495 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 5506 transitions. Word has length 118 [2022-07-20 02:57:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:14,496 INFO L495 AbstractCegarLoop]: Abstraction has 3956 states and 5506 transitions. [2022-07-20 02:57:14,496 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) [2022-07-20 02:57:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 5506 transitions. [2022-07-20 02:57:14,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-20 02:57:14,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:14,497 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] [2022-07-20 02:57:14,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:14,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:14,719 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)] === [2022-07-20 02:57:14,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1673072395, now seen corresponding path program 1 times [2022-07-20 02:57:14,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:14,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388440039] [2022-07-20 02:57:14,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:14,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:14,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:14,723 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) [2022-07-20 02:57:14,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 02:57:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:16,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:57:16,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-20 02:57:18,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:57:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-20 02:57:18,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:18,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388440039] [2022-07-20 02:57:18,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388440039] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:57:18,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:57:18,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:57:18,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691420702] [2022-07-20 02:57:18,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:18,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:57:18,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:57:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:57:18,733 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) [2022-07-20 02:57:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:19,342 INFO L93 Difference]: Finished difference Result 7874 states and 10961 transitions. [2022-07-20 02:57:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:57:19,342 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 [2022-07-20 02:57:19,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:19,425 INFO L225 Difference]: With dead ends: 7874 [2022-07-20 02:57:19,425 INFO L226 Difference]: Without dead ends: 7762 [2022-07-20 02:57:19,430 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 [2022-07-20 02:57:19,439 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 [2022-07-20 02:57:19,440 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] [2022-07-20 02:57:19,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2022-07-20 02:57:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 7755. [2022-07-20 02:57:19,894 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) [2022-07-20 02:57:19,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10836 transitions. [2022-07-20 02:57:19,918 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10836 transitions. Word has length 123 [2022-07-20 02:57:19,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:19,919 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10836 transitions. [2022-07-20 02:57:19,919 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) [2022-07-20 02:57:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10836 transitions. [2022-07-20 02:57:19,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-20 02:57:19,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:19,922 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] [2022-07-20 02:57:19,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:20,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:20,144 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)] === [2022-07-20 02:57:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:20,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1096775537, now seen corresponding path program 1 times [2022-07-20 02:57:20,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:20,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144435313] [2022-07-20 02:57:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:20,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:20,147 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) [2022-07-20 02:57:20,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 02:57:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:22,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-20 02:57:22,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2022-07-20 02:57:22,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:57:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-07-20 02:57:24,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:24,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144435313] [2022-07-20 02:57:24,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144435313] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:57:24,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:57:24,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-20 02:57:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163884435] [2022-07-20 02:57:24,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:57:24,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 02:57:24,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 02:57:24,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-20 02:57:24,466 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) [2022-07-20 02:57:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:27,911 INFO L93 Difference]: Finished difference Result 15501 states and 21658 transitions. [2022-07-20 02:57:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 02:57:27,912 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 [2022-07-20 02:57:27,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:27,936 INFO L225 Difference]: With dead ends: 15501 [2022-07-20 02:57:27,936 INFO L226 Difference]: Without dead ends: 7759 [2022-07-20 02:57:27,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 412 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-20 02:57:27,961 INFO L413 NwaCegarLoop]: 5192 mSDtfsCounter, 1257 mSDsluCounter, 34538 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 39730 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:27,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 39730 Invalid, 363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-20 02:57:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7759 states. [2022-07-20 02:57:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7759 to 7755. [2022-07-20 02:57:28,306 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) [2022-07-20 02:57:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10835 transitions. [2022-07-20 02:57:28,330 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10835 transitions. Word has length 212 [2022-07-20 02:57:28,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:28,331 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10835 transitions. [2022-07-20 02:57:28,331 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) [2022-07-20 02:57:28,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10835 transitions. [2022-07-20 02:57:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-20 02:57:28,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:28,333 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] [2022-07-20 02:57:28,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-20 02:57:28,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:28,548 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)] === [2022-07-20 02:57:28,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:28,548 INFO L85 PathProgramCache]: Analyzing trace with hash 34564430, now seen corresponding path program 1 times [2022-07-20 02:57:28,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:28,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043381536] [2022-07-20 02:57:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:28,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:28,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:28,551 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) [2022-07-20 02:57:28,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-20 02:57:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:30,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-20 02:57:30,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-07-20 02:57:31,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:57:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-20 02:57:33,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:33,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043381536] [2022-07-20 02:57:33,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043381536] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:57:33,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:57:33,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-07-20 02:57:33,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591223210] [2022-07-20 02:57:33,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:57:33,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 02:57:33,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:33,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 02:57:33,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-20 02:57:33,582 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) [2022-07-20 02:57:37,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:37,349 INFO L93 Difference]: Finished difference Result 8185 states and 11334 transitions. [2022-07-20 02:57:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 02:57:37,350 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 [2022-07-20 02:57:37,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:37,413 INFO L225 Difference]: With dead ends: 8185 [2022-07-20 02:57:37,427 INFO L226 Difference]: Without dead ends: 7767 [2022-07-20 02:57:37,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-20 02:57:37,434 INFO L413 NwaCegarLoop]: 5199 mSDtfsCounter, 54 mSDsluCounter, 46611 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 51810 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:37,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 51810 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-20 02:57:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2022-07-20 02:57:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7755. [2022-07-20 02:57:37,805 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) [2022-07-20 02:57:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10833 transitions. [2022-07-20 02:57:37,826 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10833 transitions. Word has length 216 [2022-07-20 02:57:37,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:37,827 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10833 transitions. [2022-07-20 02:57:37,827 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) [2022-07-20 02:57:37,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10833 transitions. [2022-07-20 02:57:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-20 02:57:37,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:37,830 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] [2022-07-20 02:57:37,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:38,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:38,043 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)] === [2022-07-20 02:57:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1447891691, now seen corresponding path program 1 times [2022-07-20 02:57:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:38,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137288120] [2022-07-20 02:57:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:38,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:38,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:38,047 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) [2022-07-20 02:57:38,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-20 02:57:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:40,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 02:57:40,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-07-20 02:57:43,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:57:43,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:43,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137288120] [2022-07-20 02:57:43,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137288120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:43,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:43,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:57:43,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971577884] [2022-07-20 02:57:43,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:43,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:57:43,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:43,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:57:43,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:57:43,344 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) [2022-07-20 02:57:43,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:43,807 INFO L93 Difference]: Finished difference Result 7757 states and 10834 transitions. [2022-07-20 02:57:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:57:43,808 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 [2022-07-20 02:57:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:43,844 INFO L225 Difference]: With dead ends: 7757 [2022-07-20 02:57:43,845 INFO L226 Difference]: Without dead ends: 7755 [2022-07-20 02:57:43,848 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 [2022-07-20 02:57:43,849 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 [2022-07-20 02:57:43,849 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] [2022-07-20 02:57:43,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7755 states. [2022-07-20 02:57:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7755 to 7753. [2022-07-20 02:57:44,282 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) [2022-07-20 02:57:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7753 states to 7753 states and 10830 transitions. [2022-07-20 02:57:44,302 INFO L78 Accepts]: Start accepts. Automaton has 7753 states and 10830 transitions. Word has length 220 [2022-07-20 02:57:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:44,303 INFO L495 AbstractCegarLoop]: Abstraction has 7753 states and 10830 transitions. [2022-07-20 02:57:44,303 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) [2022-07-20 02:57:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7753 states and 10830 transitions. [2022-07-20 02:57:44,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-20 02:57:44,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:44,309 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] [2022-07-20 02:57:44,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:44,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:44,517 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)] === [2022-07-20 02:57:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 660255781, now seen corresponding path program 1 times [2022-07-20 02:57:44,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:44,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025734389] [2022-07-20 02:57:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:44,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:44,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:44,521 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) [2022-07-20 02:57:44,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-20 02:57:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:47,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:57:47,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-20 02:57:47,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:57:47,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:47,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025734389] [2022-07-20 02:57:47,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025734389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:47,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:47,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:57:47,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027696214] [2022-07-20 02:57:47,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:47,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:57:47,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:47,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:57:47,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:57:47,423 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) [2022-07-20 02:57:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:47,748 INFO L93 Difference]: Finished difference Result 15557 states and 22055 transitions. [2022-07-20 02:57:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:57:47,748 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 [2022-07-20 02:57:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:47,778 INFO L225 Difference]: With dead ends: 15557 [2022-07-20 02:57:47,779 INFO L226 Difference]: Without dead ends: 7821 [2022-07-20 02:57:47,806 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 [2022-07-20 02:57:47,807 INFO L413 NwaCegarLoop]: 5223 mSDtfsCounter, 12 mSDsluCounter, 5216 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:47,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10439 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 02:57:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2022-07-20 02:57:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7757. [2022-07-20 02:57:48,217 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) [2022-07-20 02:57:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 10834 transitions. [2022-07-20 02:57:48,244 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 10834 transitions. Word has length 300 [2022-07-20 02:57:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:48,245 INFO L495 AbstractCegarLoop]: Abstraction has 7757 states and 10834 transitions. [2022-07-20 02:57:48,245 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) [2022-07-20 02:57:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 10834 transitions. [2022-07-20 02:57:48,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-20 02:57:48,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:48,250 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] [2022-07-20 02:57:48,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-20 02:57:48,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:57:48,466 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)] === [2022-07-20 02:57:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2090535692, now seen corresponding path program 1 times [2022-07-20 02:57:48,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:57:48,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625569340] [2022-07-20 02:57:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:48,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:57:48,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:57:48,470 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) [2022-07-20 02:57:48,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-20 02:57:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:51,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-20 02:57:51,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:57:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-20 02:57:54,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:57:54,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:57:54,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625569340] [2022-07-20 02:57:54,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625569340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:54,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:54,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-20 02:57:54,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033238439] [2022-07-20 02:57:54,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:54,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 02:57:54,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:57:54,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 02:57:54,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-20 02:57:54,705 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) [2022-07-20 02:58:00,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:03,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:05,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:08,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:10,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:15,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:17,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:19,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:24,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:25,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:38,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:40,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:45,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:47,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:50,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:54,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:56,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:58,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:59:00,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:59:03,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:59:04,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []