./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:47:55,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:47:55,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:47:55,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:47:55,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:47:55,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:47:55,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:47:55,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:47:55,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:47:55,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:47:55,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:47:55,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:47:55,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:47:55,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:47:55,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:47:55,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:47:55,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:47:55,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:47:55,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:47:55,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:47:55,539 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:47:55,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:47:55,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:47:55,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:47:55,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:47:55,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:47:55,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:47:55,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:47:55,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:47:55,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:47:55,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:47:55,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:47:55,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:47:55,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:47:55,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:47:55,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:47:55,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:47:55,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:47:55,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:47:55,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:47:55,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:47:55,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:47:55,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:47:55,592 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:47:55,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:47:55,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:47:55,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:47:55,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:47:55,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:47:55,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:47:55,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:47:55,595 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:47:55,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:47:55,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:47:55,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:47:55,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:47:55,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:47:55,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:47:55,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:47:55,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:47:55,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:47:55,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:47:55,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:47:55,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:47:55,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:47:55,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:47:55,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:47:55,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:47:55,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:47:55,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:47:55,600 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:47:55,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:47:55,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:47:55,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-21 13:47:55,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:47:55,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:47:55,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:47:55,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:47:55,957 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:47:55,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-21 13:47:56,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2836b7c/112a87f12035430d9df02c90d618a41f/FLAG0c7aa863a [2022-07-21 13:47:56,913 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:47:56,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-21 13:47:56,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2836b7c/112a87f12035430d9df02c90d618a41f/FLAG0c7aa863a [2022-07-21 13:47:56,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2836b7c/112a87f12035430d9df02c90d618a41f [2022-07-21 13:47:56,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:47:56,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:47:57,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:47:57,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:47:57,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:47:57,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:47:56" (1/1) ... [2022-07-21 13:47:57,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b3e8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:47:57, skipping insertion in model container [2022-07-21 13:47:57,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:47:56" (1/1) ... [2022-07-21 13:47:57,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:47:57,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:48:00,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-21 13:48:00,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-21 13:48:00,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-21 13:48:00,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-21 13:48:00,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:48:00,241 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:48:00,438 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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) [2022-07-21 13:48:00,446 INFO L158 Benchmark]: Toolchain (without parser) took 3445.65ms. Allocated memory was 56.6MB in the beginning and 165.7MB in the end (delta: 109.1MB). Free memory was 30.2MB in the beginning and 100.5MB in the end (delta: -70.4MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-07-21 13:48:00,446 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 13:48:00,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3444.07ms. Allocated memory was 56.6MB in the beginning and 165.7MB in the end (delta: 109.1MB). Free memory was 30.0MB in the beginning and 100.5MB in the end (delta: -70.5MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-07-21 13:48:00,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3444.07ms. Allocated memory was 56.6MB in the beginning and 165.7MB in the end (delta: 109.1MB). Free memory was 30.0MB in the beginning and 100.5MB in the end (delta: -70.5MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:48:02,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:48:02,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:48:02,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:48:02,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:48:02,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:48:02,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:48:02,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:48:02,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:48:02,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:48:02,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:48:02,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:48:02,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:48:02,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:48:02,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:48:02,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:48:02,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:48:02,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:48:02,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:48:02,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:48:02,207 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:48:02,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:48:02,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:48:02,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:48:02,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:48:02,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:48:02,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:48:02,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:48:02,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:48:02,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:48:02,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:48:02,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:48:02,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:48:02,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:48:02,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:48:02,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:48:02,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:48:02,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:48:02,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:48:02,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:48:02,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:48:02,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:48:02,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 13:48:02,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:48:02,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:48:02,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:48:02,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:48:02,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:48:02,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:48:02,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:48:02,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:48:02,272 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:48:02,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:48:02,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:48:02,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:48:02,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:48:02,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:48:02,274 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 13:48:02,274 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 13:48:02,274 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 13:48:02,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:48:02,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:48:02,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:48:02,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:48:02,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:48:02,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:48:02,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:48:02,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:48:02,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:48:02,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:48:02,277 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 13:48:02,277 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 13:48:02,278 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:48:02,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:48:02,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:48:02,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 13:48:02,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-21 13:48:02,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:48:02,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:48:02,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:48:02,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:48:02,643 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:48:02,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-21 13:48:02,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c0d2cde/d3b08c584ca34bc99bcb6f4ef43a881b/FLAGa8f855898 [2022-07-21 13:48:03,558 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:48:03,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-21 13:48:03,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c0d2cde/d3b08c584ca34bc99bcb6f4ef43a881b/FLAGa8f855898 [2022-07-21 13:48:03,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c0d2cde/d3b08c584ca34bc99bcb6f4ef43a881b [2022-07-21 13:48:03,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:48:03,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:48:03,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:48:03,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:48:03,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:48:03,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:03" (1/1) ... [2022-07-21 13:48:03,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f631bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:03, skipping insertion in model container [2022-07-21 13:48:03,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:03" (1/1) ... [2022-07-21 13:48:03,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:48:03,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:48:07,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-21 13:48:07,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-21 13:48:07,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-21 13:48:07,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-21 13:48:07,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:48:07,535 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 13:48:07,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:48:07,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-21 13:48:07,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-21 13:48:07,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-21 13:48:07,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-21 13:48:07,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:48:07,925 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:48:08,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-21 13:48:08,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-21 13:48:08,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-21 13:48:08,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-21 13:48:08,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:48:08,629 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:48:08,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08 WrapperNode [2022-07-21 13:48:08,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:48:08,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:48:08,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:48:08,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:48:08,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:08,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:08,953 INFO L137 Inliner]: procedures = 551, calls = 2748, calls flagged for inlining = 264, calls inlined = 238, statements flattened = 6118 [2022-07-21 13:48:08,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:48:08,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:48:08,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:48:08,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:48:08,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:08,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:48:09,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:48:09,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:48:09,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:48:09,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (1/1) ... [2022-07-21 13:48:09,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:48:09,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:48:09,256 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) [2022-07-21 13:48:09,269 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 [2022-07-21 13:48:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 13:48:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 13:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_eeprom_len [2022-07-21 13:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_eeprom_len [2022-07-21 13:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:48:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_nway_reset [2022-07-21 13:48:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_nway_reset [2022-07-21 13:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-21 13:48:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-21 13:48:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:48:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:48:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-21 13:48:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-21 13:48:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:48:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:48:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 13:48:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 13:48:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 13:48:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 13:48:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-21 13:48:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-21 13:48:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-21 13:48:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-21 13:48:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_irq [2022-07-21 13:48:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_irq [2022-07-21 13:48:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-21 13:48:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-21 13:48:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 13:48:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 13:48:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_close [2022-07-21 13:48:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_close [2022-07-21 13:48:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_speed_and_duplex [2022-07-21 13:48:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_speed_and_duplex [2022-07-21 13:48:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_force_ps [2022-07-21 13:48:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_force_ps [2022-07-21 13:48:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 13:48:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 13:48:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:48:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:48:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 13:48:09,382 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 13:48:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 13:48:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 13:48:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:48:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:48:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:48:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:48:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:48:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:48:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:48:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-21 13:48:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-21 13:48:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_write_phy_reg [2022-07-21 13:48:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_write_phy_reg [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-21 13:48:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_vlan_mode [2022-07-21 13:48:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_vlan_mode [2022-07-21 13:48:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 13:48:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 13:48:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_up [2022-07-21 13:48:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_up [2022-07-21 13:48:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:48:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:48:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 13:48:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 13:48:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_tx_timeout [2022-07-21 13:48:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_tx_timeout [2022-07-21 13:48:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_enable [2022-07-21 13:48:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_enable [2022-07-21 13:48:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:48:09,385 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:48:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_poll_controller [2022-07-21 13:48:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_poll_controller [2022-07-21 13:48:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:48:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:48:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_disable [2022-07-21 13:48:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_disable [2022-07-21 13:48:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:48:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:48:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-21 13:48:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-21 13:48:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 13:48:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 13:48:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:48:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:48:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-21 13:48:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-21 13:48:09,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:48:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:48:09,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:48:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:48:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_shutdown [2022-07-21 13:48:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_shutdown [2022-07-21 13:48:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure __atl2_vlan_mode [2022-07-21 13:48:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl2_vlan_mode [2022-07-21 13:48:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:48:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:48:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:48:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:48:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:48:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 13:48:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 13:48:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-21 13:48:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-21 13:48:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:48:09,397 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 13:48:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 13:48:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:48:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:48:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:48:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:48:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 13:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 13:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 13:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 13:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_set_multi [2022-07-21 13:48:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_set_multi [2022-07-21 13:48:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_phy_init [2022-07-21 13:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_phy_init [2022-07-21 13:48:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 13:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 13:48:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_configure [2022-07-21 13:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_configure [2022-07-21 13:48:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reset_hw [2022-07-21 13:48:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reset_hw [2022-07-21 13:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 13:48:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 13:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 13:48:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 13:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_open [2022-07-21 13:48:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_open [2022-07-21 13:48:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:48:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:48:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:48:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:48:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_validate_option [2022-07-21 13:48:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_validate_option [2022-07-21 13:48:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-21 13:48:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-21 13:48:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 13:48:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 13:48:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 13:48:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:48:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:48:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_intr [2022-07-21 13:48:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_intr [2022-07-21 13:48:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 13:48:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 13:48:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 13:48:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 13:48:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 13:48:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:48:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 13:48:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:48:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:48:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:48:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:48:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:48:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 13:48:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 13:48:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 13:48:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 13:48:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 13:48:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_remove [2022-07-21 13:48:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_remove [2022-07-21 13:48:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_eeprom [2022-07-21 13:48:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_eeprom [2022-07-21 13:48:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-21 13:48:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-21 13:48:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 13:48:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 13:48:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:48:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:48:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_request_irq [2022-07-21 13:48:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_request_irq [2022-07-21 13:48:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:48:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:48:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_phy_reg [2022-07-21 13:48:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_phy_reg [2022-07-21 13:48:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-21 13:48:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-21 13:48:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:48:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 13:48:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 13:48:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-21 13:48:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-21 13:48:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 13:48:09,412 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 13:48:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:48:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-21 13:48:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-21 13:48:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 13:48:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 13:48:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 13:48:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 13:48:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_suspend [2022-07-21 13:48:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_suspend [2022-07-21 13:48:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:48:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reinit_locked [2022-07-21 13:48:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reinit_locked [2022-07-21 13:48:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:48:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:48:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:48:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:48:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 13:48:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 13:48:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_resume [2022-07-21 13:48:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_resume [2022-07-21 13:48:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:48:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:48:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 13:48:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 13:48:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-07-21 13:48:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-07-21 13:48:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 13:48:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 13:48:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 13:48:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 13:48:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 13:48:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 13:48:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 13:48:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 13:48:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:48:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:48:09,422 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_regs_len [2022-07-21 13:48:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_regs_len [2022-07-21 13:48:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_check_eeprom_exist [2022-07-21 13:48:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_check_eeprom_exist [2022-07-21 13:48:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 13:48:09,427 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 13:48:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_restore_vlan [2022-07-21 13:48:09,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_restore_vlan [2022-07-21 13:48:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 13:48:09,427 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 13:48:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-07-21 13:48:09,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-07-21 13:48:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring_ptrs [2022-07-21 13:48:09,428 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring_ptrs [2022-07-21 13:48:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 13:48:09,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 13:48:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-21 13:48:09,428 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-21 13:48:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_ring_resources [2022-07-21 13:48:09,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_ring_resources [2022-07-21 13:48:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:48:09,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:48:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_down [2022-07-21 13:48:09,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_down [2022-07-21 13:48:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 13:48:09,429 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 13:48:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-21 13:48:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-21 13:48:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-21 13:48:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-21 13:48:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 13:48:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 13:48:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_init_hw [2022-07-21 13:48:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_init_hw [2022-07-21 13:48:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:48:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:48:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 13:48:10,265 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:48:10,271 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:48:10,442 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:48:49,619 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:48:53,327 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:48:53,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:48:53,344 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-21 13:48:53,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:53 BoogieIcfgContainer [2022-07-21 13:48:53,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:48:53,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:48:53,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:48:53,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:48:53,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:48:03" (1/3) ... [2022-07-21 13:48:53,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e61235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:53, skipping insertion in model container [2022-07-21 13:48:53,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:08" (2/3) ... [2022-07-21 13:48:53,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e61235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:53, skipping insertion in model container [2022-07-21 13:48:53,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:53" (3/3) ... [2022-07-21 13:48:53,361 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-21 13:48:53,375 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:48:53,375 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:48:53,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:48:53,470 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@fa98bbd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77a29a55 [2022-07-21 13:48:53,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:48:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) [2022-07-21 13:48:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 13:48:53,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:48:53,499 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:48:53,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:48:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:48:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1128025312, now seen corresponding path program 1 times [2022-07-21 13:48:53,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:48:53,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320154322] [2022-07-21 13:48:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:48:53,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:48:53,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:48:53,523 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) [2022-07-21 13:48:53,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 13:48:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:48:55,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:48:55,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:48:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-21 13:48:55,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:48:55,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:48:55,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320154322] [2022-07-21 13:48:55,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320154322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:48:55,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:48:55,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:48:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382115819] [2022-07-21 13:48:55,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:48:55,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:48:55,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:48:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:48:55,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:48:55,231 INFO L87 Difference]: Start difference. First operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 13:48:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:48:55,717 INFO L93 Difference]: Finished difference Result 6818 states and 9545 transitions. [2022-07-21 13:48:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:48:55,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-07-21 13:48:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:48:55,777 INFO L225 Difference]: With dead ends: 6818 [2022-07-21 13:48:55,778 INFO L226 Difference]: Without dead ends: 4502 [2022-07-21 13:48:55,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:48:55,812 INFO L413 NwaCegarLoop]: 3773 mSDtfsCounter, 3061 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:48:55,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3061 Valid, 6910 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:48:55,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-07-21 13:48:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4498. [2022-07-21 13:48:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3063 states have (on average 1.2396343454129939) internal successors, (3797), 3105 states have internal predecessors, (3797), 1197 states have call successors, (1197), 236 states have call predecessors, (1197), 235 states have return successors, (1194), 1190 states have call predecessors, (1194), 1194 states have call successors, (1194) [2022-07-21 13:48:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6188 transitions. [2022-07-21 13:48:56,179 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6188 transitions. Word has length 167 [2022-07-21 13:48:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:48:56,183 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 6188 transitions. [2022-07-21 13:48:56,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 13:48:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6188 transitions. [2022-07-21 13:48:56,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-21 13:48:56,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:48:56,194 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:48:56,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 13:48:56,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:48:56,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:48:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:48:56,416 INFO L85 PathProgramCache]: Analyzing trace with hash 75480426, now seen corresponding path program 1 times [2022-07-21 13:48:56,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:48:56,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125830785] [2022-07-21 13:48:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:48:56,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:48:56,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:48:56,421 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) [2022-07-21 13:48:56,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 13:48:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:48:58,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:48:58,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:48:58,189 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-21 13:48:58,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:48:58,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:48:58,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125830785] [2022-07-21 13:48:58,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125830785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:48:58,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:48:58,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:48:58,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003480480] [2022-07-21 13:48:58,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:48:58,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:48:58,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:48:58,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:48:58,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:48:58,193 INFO L87 Difference]: Start difference. First operand 4498 states and 6188 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 13:48:58,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:48:58,784 INFO L93 Difference]: Finished difference Result 13216 states and 18204 transitions. [2022-07-21 13:48:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:48:58,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2022-07-21 13:48:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:48:58,852 INFO L225 Difference]: With dead ends: 13216 [2022-07-21 13:48:58,852 INFO L226 Difference]: Without dead ends: 8749 [2022-07-21 13:48:58,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:48:58,876 INFO L413 NwaCegarLoop]: 3750 mSDtfsCounter, 3057 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:48:58,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 6813 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:48:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8749 states. [2022-07-21 13:48:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8749 to 8711. [2022-07-21 13:48:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 5965 states have (on average 1.2442581726739312) internal successors, (7422), 6055 states have internal predecessors, (7422), 2286 states have call successors, (2286), 468 states have call predecessors, (2286), 457 states have return successors, (2299), 2251 states have call predecessors, (2299), 2283 states have call successors, (2299) [2022-07-21 13:48:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 12007 transitions. [2022-07-21 13:48:59,297 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 12007 transitions. Word has length 171 [2022-07-21 13:48:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:48:59,298 INFO L495 AbstractCegarLoop]: Abstraction has 8711 states and 12007 transitions. [2022-07-21 13:48:59,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 13:48:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 12007 transitions. [2022-07-21 13:48:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-21 13:48:59,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:48:59,306 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:48:59,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 13:48:59,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:48:59,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:48:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:48:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1694760687, now seen corresponding path program 1 times [2022-07-21 13:48:59,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:48:59,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787367381] [2022-07-21 13:48:59,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:48:59,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:48:59,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:48:59,526 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) [2022-07-21 13:48:59,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 13:49:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:00,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:49:01,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-21 13:49:01,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:49:01,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:01,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787367381] [2022-07-21 13:49:01,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787367381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:01,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:01,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:49:01,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922046889] [2022-07-21 13:49:01,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:01,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:49:01,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:01,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:49:01,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:01,115 INFO L87 Difference]: Start difference. First operand 8711 states and 12007 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 13:49:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:01,792 INFO L93 Difference]: Finished difference Result 25907 states and 35775 transitions. [2022-07-21 13:49:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:49:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-07-21 13:49:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:01,914 INFO L225 Difference]: With dead ends: 25907 [2022-07-21 13:49:01,914 INFO L226 Difference]: Without dead ends: 17227 [2022-07-21 13:49:01,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:01,970 INFO L413 NwaCegarLoop]: 3788 mSDtfsCounter, 3084 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:01,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6895 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:49:01,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17227 states. [2022-07-21 13:49:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17227 to 17185. [2022-07-21 13:49:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17185 states, 11779 states have (on average 1.2449274131929706) internal successors, (14664), 11965 states have internal predecessors, (14664), 4502 states have call successors, (4502), 930 states have call predecessors, (4502), 901 states have return successors, (4577), 4413 states have call predecessors, (4577), 4499 states have call successors, (4577) [2022-07-21 13:49:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 23743 transitions. [2022-07-21 13:49:02,786 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 23743 transitions. Word has length 184 [2022-07-21 13:49:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:02,788 INFO L495 AbstractCegarLoop]: Abstraction has 17185 states and 23743 transitions. [2022-07-21 13:49:02,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 13:49:02,789 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 23743 transitions. [2022-07-21 13:49:02,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-21 13:49:02,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:02,793 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:02,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:03,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:03,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:03,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:03,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2004995607, now seen corresponding path program 1 times [2022-07-21 13:49:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:03,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539008194] [2022-07-21 13:49:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:03,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:03,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:03,019 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) [2022-07-21 13:49:03,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 13:49:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:04,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:49:04,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-21 13:49:04,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:49:04,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:04,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539008194] [2022-07-21 13:49:04,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539008194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:04,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:04,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:49:04,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170234399] [2022-07-21 13:49:04,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:04,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:49:04,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:04,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:49:04,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:04,851 INFO L87 Difference]: Start difference. First operand 17185 states and 23743 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 13:49:06,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:06,379 INFO L93 Difference]: Finished difference Result 46595 states and 64065 transitions. [2022-07-21 13:49:06,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:49:06,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 189 [2022-07-21 13:49:06,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:06,670 INFO L225 Difference]: With dead ends: 46595 [2022-07-21 13:49:06,670 INFO L226 Difference]: Without dead ends: 29441 [2022-07-21 13:49:06,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:06,747 INFO L413 NwaCegarLoop]: 3648 mSDtfsCounter, 2349 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:06,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 6701 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 13:49:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29441 states. [2022-07-21 13:49:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29441 to 29397. [2022-07-21 13:49:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29397 states, 19977 states have (on average 1.2353206187115182) internal successors, (24678), 20309 states have internal predecessors, (24678), 7722 states have call successors, (7722), 1754 states have call predecessors, (7722), 1695 states have return successors, (7871), 7545 states have call predecessors, (7871), 7719 states have call successors, (7871) [2022-07-21 13:49:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29397 states to 29397 states and 40271 transitions. [2022-07-21 13:49:08,208 INFO L78 Accepts]: Start accepts. Automaton has 29397 states and 40271 transitions. Word has length 189 [2022-07-21 13:49:08,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:08,209 INFO L495 AbstractCegarLoop]: Abstraction has 29397 states and 40271 transitions. [2022-07-21 13:49:08,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 13:49:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 29397 states and 40271 transitions. [2022-07-21 13:49:08,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-21 13:49:08,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:08,215 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:08,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:08,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:08,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:08,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:08,436 INFO L85 PathProgramCache]: Analyzing trace with hash -35456696, now seen corresponding path program 1 times [2022-07-21 13:49:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:08,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390862832] [2022-07-21 13:49:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:08,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:08,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:08,440 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) [2022-07-21 13:49:08,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 13:49:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:10,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:49:10,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-07-21 13:49:10,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:49:10,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:10,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390862832] [2022-07-21 13:49:10,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390862832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:10,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:10,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:49:10,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646305702] [2022-07-21 13:49:10,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:10,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:49:10,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:10,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:49:10,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:10,384 INFO L87 Difference]: Start difference. First operand 29397 states and 40271 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 13:49:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:11,813 INFO L93 Difference]: Finished difference Result 58876 states and 80614 transitions. [2022-07-21 13:49:11,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:49:11,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 219 [2022-07-21 13:49:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:12,123 INFO L225 Difference]: With dead ends: 58876 [2022-07-21 13:49:12,123 INFO L226 Difference]: Without dead ends: 43956 [2022-07-21 13:49:12,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:12,331 INFO L413 NwaCegarLoop]: 6220 mSDtfsCounter, 3069 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 9356 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:12,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 9356 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 13:49:12,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43956 states. [2022-07-21 13:49:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43956 to 43931. [2022-07-21 13:49:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43931 states, 29862 states have (on average 1.2354497354497354) internal successors, (36893), 30351 states have internal predecessors, (36893), 11524 states have call successors, (11524), 2630 states have call predecessors, (11524), 2542 states have return successors, (11749), 11267 states have call predecessors, (11749), 11521 states have call successors, (11749) [2022-07-21 13:49:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43931 states to 43931 states and 60166 transitions. [2022-07-21 13:49:14,625 INFO L78 Accepts]: Start accepts. Automaton has 43931 states and 60166 transitions. Word has length 219 [2022-07-21 13:49:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:14,627 INFO L495 AbstractCegarLoop]: Abstraction has 43931 states and 60166 transitions. [2022-07-21 13:49:14,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 13:49:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 43931 states and 60166 transitions. [2022-07-21 13:49:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-21 13:49:14,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:14,632 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:14,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-21 13:49:14,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:14,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:14,848 INFO L85 PathProgramCache]: Analyzing trace with hash 387245130, now seen corresponding path program 1 times [2022-07-21 13:49:14,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:14,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682103730] [2022-07-21 13:49:14,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:14,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:14,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:14,852 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) [2022-07-21 13:49:14,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 13:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:16,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:49:16,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-21 13:49:17,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:49:17,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:17,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682103730] [2022-07-21 13:49:17,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682103730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:17,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:17,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:49:17,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607782672] [2022-07-21 13:49:17,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:17,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:17,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:49:17,671 INFO L87 Difference]: Start difference. First operand 43931 states and 60166 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-21 13:49:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:18,843 INFO L93 Difference]: Finished difference Result 44671 states and 60910 transitions. [2022-07-21 13:49:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:49:18,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 219 [2022-07-21 13:49:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:19,285 INFO L225 Difference]: With dead ends: 44671 [2022-07-21 13:49:19,286 INFO L226 Difference]: Without dead ends: 44669 [2022-07-21 13:49:19,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:49:19,313 INFO L413 NwaCegarLoop]: 3183 mSDtfsCounter, 3059 mSDsluCounter, 6396 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 9579 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:19,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 9579 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:49:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44669 states. [2022-07-21 13:49:21,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44669 to 44667. [2022-07-21 13:49:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44667 states, 30342 states have (on average 1.233999077186738) internal successors, (37442), 30879 states have internal predecessors, (37442), 11620 states have call successors, (11620), 2790 states have call predecessors, (11620), 2702 states have return successors, (11845), 11363 states have call predecessors, (11845), 11617 states have call successors, (11845) [2022-07-21 13:49:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44667 states to 44667 states and 60907 transitions. [2022-07-21 13:49:21,563 INFO L78 Accepts]: Start accepts. Automaton has 44667 states and 60907 transitions. Word has length 219 [2022-07-21 13:49:21,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:21,564 INFO L495 AbstractCegarLoop]: Abstraction has 44667 states and 60907 transitions. [2022-07-21 13:49:21,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-21 13:49:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 44667 states and 60907 transitions. [2022-07-21 13:49:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-21 13:49:21,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:21,580 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:21,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:21,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:21,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:21,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:21,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1206012490, now seen corresponding path program 1 times [2022-07-21 13:49:21,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:21,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591770483] [2022-07-21 13:49:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:21,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:21,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:21,785 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) [2022-07-21 13:49:21,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 13:49:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:23,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:49:23,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-21 13:49:24,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:49:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-21 13:49:25,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:25,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591770483] [2022-07-21 13:49:25,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591770483] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:49:25,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:49:25,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:49:25,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425947261] [2022-07-21 13:49:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:25,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:25,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:25,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:25,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:49:25,367 INFO L87 Difference]: Start difference. First operand 44667 states and 60907 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:49:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:26,721 INFO L93 Difference]: Finished difference Result 44673 states and 60912 transitions. [2022-07-21 13:49:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:49:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2022-07-21 13:49:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:26,971 INFO L225 Difference]: With dead ends: 44673 [2022-07-21 13:49:26,971 INFO L226 Difference]: Without dead ends: 44671 [2022-07-21 13:49:27,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:49:27,008 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:27,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:49:27,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44671 states. [2022-07-21 13:49:28,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44671 to 44671. [2022-07-21 13:49:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44671 states, 30345 states have (on average 1.2339759433185038) internal successors, (37445), 30882 states have internal predecessors, (37445), 11620 states have call successors, (11620), 2791 states have call predecessors, (11620), 2703 states have return successors, (11845), 11363 states have call predecessors, (11845), 11617 states have call successors, (11845) [2022-07-21 13:49:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44671 states to 44671 states and 60910 transitions. [2022-07-21 13:49:28,891 INFO L78 Accepts]: Start accepts. Automaton has 44671 states and 60910 transitions. Word has length 224 [2022-07-21 13:49:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:28,892 INFO L495 AbstractCegarLoop]: Abstraction has 44671 states and 60910 transitions. [2022-07-21 13:49:28,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:49:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 44671 states and 60910 transitions. [2022-07-21 13:49:28,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-21 13:49:28,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:28,898 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:28,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:29,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:29,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:29,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:29,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1923579839, now seen corresponding path program 1 times [2022-07-21 13:49:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:29,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521752227] [2022-07-21 13:49:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:29,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:29,116 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) [2022-07-21 13:49:29,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 13:49:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:30,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:49:30,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:30,676 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-21 13:49:30,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:49:30,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:30,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521752227] [2022-07-21 13:49:30,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521752227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:30,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:30,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:49:30,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882711735] [2022-07-21 13:49:30,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:30,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:49:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:49:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:30,830 INFO L87 Difference]: Start difference. First operand 44671 states and 60910 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-21 13:49:32,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:32,439 INFO L93 Difference]: Finished difference Result 87436 states and 118898 transitions. [2022-07-21 13:49:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:49:32,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 222 [2022-07-21 13:49:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:32,676 INFO L225 Difference]: With dead ends: 87436 [2022-07-21 13:49:32,676 INFO L226 Difference]: Without dead ends: 42796 [2022-07-21 13:49:32,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:49:32,872 INFO L413 NwaCegarLoop]: 4693 mSDtfsCounter, 1971 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:32,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 7793 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 13:49:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42796 states. [2022-07-21 13:49:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42796 to 42753. [2022-07-21 13:49:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42753 states, 29274 states have (on average 1.2312973970075836) internal successors, (36045), 29778 states have internal predecessors, (36045), 10755 states have call successors, (10755), 2792 states have call predecessors, (10755), 2721 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-21 13:49:34,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42753 states to 42753 states and 57708 transitions. [2022-07-21 13:49:34,589 INFO L78 Accepts]: Start accepts. Automaton has 42753 states and 57708 transitions. Word has length 222 [2022-07-21 13:49:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:34,590 INFO L495 AbstractCegarLoop]: Abstraction has 42753 states and 57708 transitions. [2022-07-21 13:49:34,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-21 13:49:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 42753 states and 57708 transitions. [2022-07-21 13:49:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-21 13:49:34,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:34,594 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:34,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-21 13:49:34,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:34,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash -648544374, now seen corresponding path program 1 times [2022-07-21 13:49:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:34,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407050970] [2022-07-21 13:49:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:34,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:34,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:34,815 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) [2022-07-21 13:49:34,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 13:49:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:36,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:49:36,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-21 13:49:37,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:49:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-21 13:49:37,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:37,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407050970] [2022-07-21 13:49:37,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407050970] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:49:37,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:49:37,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:49:37,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088016386] [2022-07-21 13:49:37,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:37,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:37,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:37,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:37,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:49:37,860 INFO L87 Difference]: Start difference. First operand 42753 states and 57708 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:49:39,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:39,040 INFO L93 Difference]: Finished difference Result 42759 states and 57713 transitions. [2022-07-21 13:49:39,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:49:39,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 229 [2022-07-21 13:49:39,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:39,245 INFO L225 Difference]: With dead ends: 42759 [2022-07-21 13:49:39,245 INFO L226 Difference]: Without dead ends: 42757 [2022-07-21 13:49:39,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:49:39,271 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:39,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:49:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42757 states. [2022-07-21 13:49:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42757 to 42757. [2022-07-21 13:49:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42757 states, 29277 states have (on average 1.2312736960754176) internal successors, (36048), 29781 states have internal predecessors, (36048), 10755 states have call successors, (10755), 2793 states have call predecessors, (10755), 2722 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-21 13:49:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42757 states to 42757 states and 57711 transitions. [2022-07-21 13:49:40,803 INFO L78 Accepts]: Start accepts. Automaton has 42757 states and 57711 transitions. Word has length 229 [2022-07-21 13:49:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:40,804 INFO L495 AbstractCegarLoop]: Abstraction has 42757 states and 57711 transitions. [2022-07-21 13:49:40,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:49:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 42757 states and 57711 transitions. [2022-07-21 13:49:40,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-21 13:49:40,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:40,809 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:40,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:41,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:41,024 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:41,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1745080822, now seen corresponding path program 1 times [2022-07-21 13:49:41,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:41,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778584965] [2022-07-21 13:49:41,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:41,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:41,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:41,027 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) [2022-07-21 13:49:41,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 13:49:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:42,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:49:42,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-21 13:49:43,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:49:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-21 13:49:44,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:44,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778584965] [2022-07-21 13:49:44,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778584965] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:49:44,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:49:44,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:49:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617851944] [2022-07-21 13:49:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:44,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:44,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:49:44,296 INFO L87 Difference]: Start difference. First operand 42757 states and 57711 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 13:49:45,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:45,479 INFO L93 Difference]: Finished difference Result 42763 states and 57716 transitions. [2022-07-21 13:49:45,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:49:45,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2022-07-21 13:49:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:45,623 INFO L225 Difference]: With dead ends: 42763 [2022-07-21 13:49:45,623 INFO L226 Difference]: Without dead ends: 42761 [2022-07-21 13:49:45,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:49:45,645 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:45,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:49:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42761 states. [2022-07-21 13:49:46,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42761 to 42761. [2022-07-21 13:49:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42761 states, 29280 states have (on average 1.23125) internal successors, (36051), 29784 states have internal predecessors, (36051), 10755 states have call successors, (10755), 2794 states have call predecessors, (10755), 2723 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-21 13:49:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42761 states to 42761 states and 57714 transitions. [2022-07-21 13:49:47,166 INFO L78 Accepts]: Start accepts. Automaton has 42761 states and 57714 transitions. Word has length 234 [2022-07-21 13:49:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:47,166 INFO L495 AbstractCegarLoop]: Abstraction has 42761 states and 57714 transitions. [2022-07-21 13:49:47,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 13:49:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 42761 states and 57714 transitions. [2022-07-21 13:49:47,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-21 13:49:47,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:47,169 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:47,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:47,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:47,370 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:47,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:47,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1582545610, now seen corresponding path program 1 times [2022-07-21 13:49:47,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:47,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242999509] [2022-07-21 13:49:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:47,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:47,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:47,373 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) [2022-07-21 13:49:47,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 13:49:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:48,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:49:48,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-21 13:49:50,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:49:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-21 13:49:50,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:50,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242999509] [2022-07-21 13:49:50,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242999509] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:49:50,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:49:50,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:49:50,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432260965] [2022-07-21 13:49:50,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:50,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:50,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:50,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:49:50,762 INFO L87 Difference]: Start difference. First operand 42761 states and 57714 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:49:51,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:51,945 INFO L93 Difference]: Finished difference Result 42767 states and 57719 transitions. [2022-07-21 13:49:51,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:49:51,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 239 [2022-07-21 13:49:51,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:52,066 INFO L225 Difference]: With dead ends: 42767 [2022-07-21 13:49:52,066 INFO L226 Difference]: Without dead ends: 42765 [2022-07-21 13:49:52,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:49:52,082 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:52,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:49:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42765 states. [2022-07-21 13:49:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42765 to 42765. [2022-07-21 13:49:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42765 states, 29283 states have (on average 1.231226308779838) internal successors, (36054), 29787 states have internal predecessors, (36054), 10755 states have call successors, (10755), 2795 states have call predecessors, (10755), 2724 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-21 13:49:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42765 states to 42765 states and 57717 transitions. [2022-07-21 13:49:53,743 INFO L78 Accepts]: Start accepts. Automaton has 42765 states and 57717 transitions. Word has length 239 [2022-07-21 13:49:53,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:53,743 INFO L495 AbstractCegarLoop]: Abstraction has 42765 states and 57717 transitions. [2022-07-21 13:49:53,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:49:53,744 INFO L276 IsEmpty]: Start isEmpty. Operand 42765 states and 57717 transitions. [2022-07-21 13:49:53,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-21 13:49:53,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:53,746 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:53,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 13:49:53,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:49:53,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1335184950, now seen corresponding path program 1 times [2022-07-21 13:49:53,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:49:53,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162534431] [2022-07-21 13:49:53,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:53,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:49:53,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:49:53,950 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) [2022-07-21 13:49:53,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 13:49:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:55,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:49:55,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:49:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-21 13:49:56,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:49:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-21 13:49:57,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:49:57,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162534431] [2022-07-21 13:49:57,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162534431] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:49:57,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:49:57,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:49:57,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388848419] [2022-07-21 13:49:57,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:57,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:57,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:49:57,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:49:57,359 INFO L87 Difference]: Start difference. First operand 42765 states and 57717 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 13:49:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:58,450 INFO L93 Difference]: Finished difference Result 42771 states and 57722 transitions. [2022-07-21 13:49:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:49:58,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2022-07-21 13:49:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:58,592 INFO L225 Difference]: With dead ends: 42771 [2022-07-21 13:49:58,592 INFO L226 Difference]: Without dead ends: 42769 [2022-07-21 13:49:58,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:49:58,619 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:58,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:49:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2022-07-21 13:49:59,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 42769. [2022-07-21 13:49:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42769 states, 29286 states have (on average 1.2312026224134398) internal successors, (36057), 29790 states have internal predecessors, (36057), 10755 states have call successors, (10755), 2796 states have call predecessors, (10755), 2725 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-21 13:50:00,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42769 states to 42769 states and 57720 transitions. [2022-07-21 13:50:00,135 INFO L78 Accepts]: Start accepts. Automaton has 42769 states and 57720 transitions. Word has length 244 [2022-07-21 13:50:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:00,135 INFO L495 AbstractCegarLoop]: Abstraction has 42769 states and 57720 transitions. [2022-07-21 13:50:00,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 13:50:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 42769 states and 57720 transitions. [2022-07-21 13:50:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-21 13:50:00,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:00,138 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:00,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 13:50:00,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:50:00,347 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:00,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:00,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1883236854, now seen corresponding path program 1 times [2022-07-21 13:50:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:50:00,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907425703] [2022-07-21 13:50:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:00,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:50:00,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:50:00,350 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) [2022-07-21 13:50:00,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 13:50:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:01,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:50:01,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:50:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-21 13:50:03,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:50:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-21 13:50:03,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:50:03,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907425703] [2022-07-21 13:50:03,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907425703] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:50:03,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:50:03,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:50:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116842254] [2022-07-21 13:50:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:03,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:50:03,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:50:03,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:50:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:50:03,579 INFO L87 Difference]: Start difference. First operand 42769 states and 57720 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 13:50:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:04,808 INFO L93 Difference]: Finished difference Result 42775 states and 57725 transitions. [2022-07-21 13:50:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:50:04,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 249 [2022-07-21 13:50:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:05,002 INFO L225 Difference]: With dead ends: 42775 [2022-07-21 13:50:05,002 INFO L226 Difference]: Without dead ends: 42773 [2022-07-21 13:50:05,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:05,018 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:05,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3100 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:50:05,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42773 states. [2022-07-21 13:50:06,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42773 to 42773. [2022-07-21 13:50:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42773 states, 29289 states have (on average 1.2311789408993137) internal successors, (36060), 29793 states have internal predecessors, (36060), 10755 states have call successors, (10755), 2797 states have call predecessors, (10755), 2726 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-21 13:50:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42773 states to 42773 states and 57723 transitions. [2022-07-21 13:50:06,485 INFO L78 Accepts]: Start accepts. Automaton has 42773 states and 57723 transitions. Word has length 249 [2022-07-21 13:50:06,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:06,486 INFO L495 AbstractCegarLoop]: Abstraction has 42773 states and 57723 transitions. [2022-07-21 13:50:06,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 13:50:06,486 INFO L276 IsEmpty]: Start isEmpty. Operand 42773 states and 57723 transitions. [2022-07-21 13:50:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-21 13:50:06,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:06,490 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:06,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 13:50:06,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:50:06,712 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:06,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:06,712 INFO L85 PathProgramCache]: Analyzing trace with hash 789674925, now seen corresponding path program 1 times [2022-07-21 13:50:06,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:50:06,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460304071] [2022-07-21 13:50:06,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:06,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:50:06,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:50:06,714 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) [2022-07-21 13:50:06,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 13:50:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:08,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 13:50:08,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:50:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2022-07-21 13:50:09,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:50:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2022-07-21 13:50:10,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:50:10,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460304071] [2022-07-21 13:50:10,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460304071] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 13:50:10,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 13:50:10,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-21 13:50:10,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628887051] [2022-07-21 13:50:10,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 13:50:10,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 13:50:10,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:50:10,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 13:50:10,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-21 13:50:10,244 INFO L87 Difference]: Start difference. First operand 42773 states and 57723 transitions. Second operand has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2022-07-21 13:50:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:30,614 INFO L93 Difference]: Finished difference Result 85632 states and 115486 transitions. [2022-07-21 13:50:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-21 13:50:30,615 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) Word has length 272 [2022-07-21 13:50:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:30,926 INFO L225 Difference]: With dead ends: 85632 [2022-07-21 13:50:30,927 INFO L226 Difference]: Without dead ends: 85288 [2022-07-21 13:50:30,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-21 13:50:30,983 INFO L413 NwaCegarLoop]: 5886 mSDtfsCounter, 8533 mSDsluCounter, 67239 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 2110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8575 SdHoareTripleChecker+Valid, 73125 SdHoareTripleChecker+Invalid, 6052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2110 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:30,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8575 Valid, 73125 Invalid, 6052 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2110 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2022-07-21 13:50:31,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85288 states. [2022-07-21 13:50:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85288 to 85011. [2022-07-21 13:50:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85011 states, 58192 states have (on average 1.231664146274402) internal successors, (71673), 59206 states have internal predecessors, (71673), 21391 states have call successors, (21391), 5569 states have call predecessors, (21391), 5425 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-21 13:50:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85011 states to 85011 states and 114760 transitions. [2022-07-21 13:50:34,773 INFO L78 Accepts]: Start accepts. Automaton has 85011 states and 114760 transitions. Word has length 272 [2022-07-21 13:50:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:34,774 INFO L495 AbstractCegarLoop]: Abstraction has 85011 states and 114760 transitions. [2022-07-21 13:50:34,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2022-07-21 13:50:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 85011 states and 114760 transitions. [2022-07-21 13:50:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-21 13:50:34,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:34,778 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:34,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 13:50:34,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:50:34,999 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:35,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:35,000 INFO L85 PathProgramCache]: Analyzing trace with hash -669373834, now seen corresponding path program 1 times [2022-07-21 13:50:35,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:50:35,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478796231] [2022-07-21 13:50:35,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:35,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:50:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:50:35,003 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) [2022-07-21 13:50:35,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 13:50:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:36,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:50:36,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:50:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-21 13:50:37,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:50:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-21 13:50:38,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:50:38,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478796231] [2022-07-21 13:50:38,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478796231] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:50:38,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:50:38,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:50:38,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907341142] [2022-07-21 13:50:38,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:38,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:50:38,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:50:38,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:50:38,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:50:38,096 INFO L87 Difference]: Start difference. First operand 85011 states and 114760 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 13:50:40,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:40,565 INFO L93 Difference]: Finished difference Result 85017 states and 114765 transitions. [2022-07-21 13:50:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:50:40,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2022-07-21 13:50:40,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:40,915 INFO L225 Difference]: With dead ends: 85017 [2022-07-21 13:50:40,915 INFO L226 Difference]: Without dead ends: 85015 [2022-07-21 13:50:40,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:40,969 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:40,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:50:41,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85015 states. [2022-07-21 13:50:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85015 to 85015. [2022-07-21 13:50:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85015 states, 58195 states have (on average 1.231652203797577) internal successors, (71676), 59209 states have internal predecessors, (71676), 21391 states have call successors, (21391), 5570 states have call predecessors, (21391), 5426 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-21 13:50:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85015 states to 85015 states and 114763 transitions. [2022-07-21 13:50:44,882 INFO L78 Accepts]: Start accepts. Automaton has 85015 states and 114763 transitions. Word has length 254 [2022-07-21 13:50:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:44,883 INFO L495 AbstractCegarLoop]: Abstraction has 85015 states and 114763 transitions. [2022-07-21 13:50:44,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-21 13:50:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 85015 states and 114763 transitions. [2022-07-21 13:50:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 13:50:44,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:44,888 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:44,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 13:50:45,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:50:45,112 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:45,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1856695990, now seen corresponding path program 1 times [2022-07-21 13:50:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:50:45,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898775927] [2022-07-21 13:50:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:45,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:50:45,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:50:45,114 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) [2022-07-21 13:50:45,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 13:50:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:46,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:50:46,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:50:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-21 13:50:47,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:50:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-21 13:50:48,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:50:48,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898775927] [2022-07-21 13:50:48,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898775927] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:50:48,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:50:48,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:50:48,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541090776] [2022-07-21 13:50:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:48,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:50:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:50:48,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:50:48,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:50:48,272 INFO L87 Difference]: Start difference. First operand 85015 states and 114763 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 13:50:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:51,110 INFO L93 Difference]: Finished difference Result 85021 states and 114768 transitions. [2022-07-21 13:50:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:50:51,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2022-07-21 13:50:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:51,372 INFO L225 Difference]: With dead ends: 85021 [2022-07-21 13:50:51,372 INFO L226 Difference]: Without dead ends: 85019 [2022-07-21 13:50:51,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:51,407 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3098 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:51,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3098 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:50:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85019 states.