./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-usb-smsc95xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.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 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:39:15,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:39:15,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:39:15,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:39:15,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:39:15,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:39:15,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:39:15,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:39:15,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:39:15,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:39:15,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:39:15,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:39:15,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:39:15,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:39:15,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:39:15,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:39:15,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:39:15,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:39:15,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:39:15,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:39:15,282 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:39:15,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:39:15,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:39:15,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:39:15,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:39:15,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:39:15,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:39:15,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:39:15,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:39:15,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:39:15,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:39:15,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:39:15,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:39:15,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:39:15,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:39:15,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:39:15,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:39:15,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:39:15,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:39:15,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:39:15,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:39:15,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:39:15,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 02:39:15,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:39:15,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:39:15,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:39:15,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:39:15,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:39:15,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:39:15,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:39:15,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:39:15,325 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:39:15,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:39:15,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:39:15,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:39:15,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:39:15,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:39:15,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:39:15,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:39:15,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:39:15,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:39:15,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-07-23 02:39:15,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:39:15,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:39:15,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:39:15,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:39:15,587 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:39:15,589 INFO L432 ainManager$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-usb-smsc95xx.cil.i [2022-07-23 02:39:15,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc53d1f34/b82e63b174da4e07bd6ee2905de2b6e8/FLAG0d03d82be [2022-07-23 02:39:16,259 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:39:16,259 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-usb-smsc95xx.cil.i [2022-07-23 02:39:16,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc53d1f34/b82e63b174da4e07bd6ee2905de2b6e8/FLAG0d03d82be [2022-07-23 02:39:16,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc53d1f34/b82e63b174da4e07bd6ee2905de2b6e8 [2022-07-23 02:39:16,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:39:16,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:39:16,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:39:16,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:39:16,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:39:16,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:39:16" (1/1) ... [2022-07-23 02:39:16,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526c1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:16, skipping insertion in model container [2022-07-23 02:39:16,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:39:16" (1/1) ... [2022-07-23 02:39:16,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:39:16,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:39:19,500 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-usb-smsc95xx.cil.i[348095,348108] [2022-07-23 02:39:19,503 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-usb-smsc95xx.cil.i[348264,348277] [2022-07-23 02:39:19,503 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-usb-smsc95xx.cil.i[348431,348444] [2022-07-23 02:39:19,503 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-usb-smsc95xx.cil.i[348599,348612] [2022-07-23 02:39:19,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:39:19,554 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:39:19,662 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:1845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 02:39:19,672 INFO L158 Benchmark]: Toolchain (without parser) took 3205.13ms. Allocated memory was 113.2MB in the beginning and 186.6MB in the end (delta: 73.4MB). Free memory was 86.4MB in the beginning and 90.1MB in the end (delta: -3.7MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2022-07-23 02:39:19,673 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 113.2MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 02:39:19,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3201.09ms. Allocated memory was 113.2MB in the beginning and 186.6MB in the end (delta: 73.4MB). Free memory was 86.4MB in the beginning and 90.1MB in the end (delta: -3.7MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2022-07-23 02:39:19,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 113.2MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3201.09ms. Allocated memory was 113.2MB in the beginning and 186.6MB in the end (delta: 73.4MB). Free memory was 86.4MB in the beginning and 90.1MB in the end (delta: -3.7MB). Peak memory consumption was 68.3MB. 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-usb-smsc95xx.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 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:39:21,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:39:21,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:39:21,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:39:21,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:39:21,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:39:21,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:39:21,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:39:21,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:39:21,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:39:21,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:39:21,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:39:21,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:39:21,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:39:21,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:39:21,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:39:21,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:39:21,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:39:21,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:39:21,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:39:21,525 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:39:21,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:39:21,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:39:21,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:39:21,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:39:21,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:39:21,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:39:21,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:39:21,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:39:21,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:39:21,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:39:21,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:39:21,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:39:21,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:39:21,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:39:21,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:39:21,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:39:21,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:39:21,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:39:21,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:39:21,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:39:21,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:39:21,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 02:39:21,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:39:21,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:39:21,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:39:21,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:39:21,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:39:21,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:39:21,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:39:21,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:39:21,586 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:39:21,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:39:21,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:39:21,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:39:21,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:39:21,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:39:21,587 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 02:39:21,588 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 02:39:21,588 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 02:39:21,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:39:21,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:39:21,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:39:21,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:39:21,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:39:21,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:39:21,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:39:21,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:39:21,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:39:21,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:39:21,590 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 02:39:21,590 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 02:39:21,590 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:39:21,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:39:21,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:39:21,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 02:39:21,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-07-23 02:39:21,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:39:21,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:39:21,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:39:21,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:39:21,908 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:39:21,909 INFO L432 ainManager$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-usb-smsc95xx.cil.i [2022-07-23 02:39:21,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1314731d/1282e582bb0145e399ab57ffdb5c33eb/FLAG6035953c6 [2022-07-23 02:39:22,611 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:39:22,612 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-usb-smsc95xx.cil.i [2022-07-23 02:39:22,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1314731d/1282e582bb0145e399ab57ffdb5c33eb/FLAG6035953c6 [2022-07-23 02:39:22,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1314731d/1282e582bb0145e399ab57ffdb5c33eb [2022-07-23 02:39:22,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:39:22,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:39:22,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:39:22,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:39:22,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:39:22,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:39:22" (1/1) ... [2022-07-23 02:39:22,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60512a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:22, skipping insertion in model container [2022-07-23 02:39:22,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:39:22" (1/1) ... [2022-07-23 02:39:22,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:39:23,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:39:25,084 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-usb-smsc95xx.cil.i[348095,348108] [2022-07-23 02:39:25,086 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-usb-smsc95xx.cil.i[348264,348277] [2022-07-23 02:39:25,087 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-usb-smsc95xx.cil.i[348431,348444] [2022-07-23 02:39:25,087 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-usb-smsc95xx.cil.i[348599,348612] [2022-07-23 02:39:25,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:39:25,133 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 02:39:25,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:39:25,413 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-usb-smsc95xx.cil.i[348095,348108] [2022-07-23 02:39:25,414 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-usb-smsc95xx.cil.i[348264,348277] [2022-07-23 02:39:25,414 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-usb-smsc95xx.cil.i[348431,348444] [2022-07-23 02:39:25,415 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-usb-smsc95xx.cil.i[348599,348612] [2022-07-23 02:39:25,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:39:25,446 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:39:25,682 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-usb-smsc95xx.cil.i[348095,348108] [2022-07-23 02:39:25,682 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-usb-smsc95xx.cil.i[348264,348277] [2022-07-23 02:39:25,683 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-usb-smsc95xx.cil.i[348431,348444] [2022-07-23 02:39:25,684 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-usb-smsc95xx.cil.i[348599,348612] [2022-07-23 02:39:25,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:39:25,876 INFO L208 MainTranslator]: Completed translation [2022-07-23 02:39:25,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25 WrapperNode [2022-07-23 02:39:25,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 02:39:25,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 02:39:25,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 02:39:25,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 02:39:25,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:25,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,119 INFO L137 Inliner]: procedures = 406, calls = 2962, calls flagged for inlining = 179, calls inlined = 164, statements flattened = 5999 [2022-07-23 02:39:26,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 02:39:26,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 02:39:26,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 02:39:26,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 02:39:26,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 02:39:26,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 02:39:26,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 02:39:26,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 02:39:26,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (1/1) ... [2022-07-23 02:39:26,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:39:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 02:39:26,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 02:39:26,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 02:39:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 02:39:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 02:39:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-07-23 02:39:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-07-23 02:39:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2022-07-23 02:39:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2022-07-23 02:39:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 02:39:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 02:39:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2022-07-23 02:39:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2022-07-23 02:39:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2022-07-23 02:39:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2022-07-23 02:39:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2022-07-23 02:39:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2022-07-23 02:39:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:39:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:39:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-23 02:39:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-23 02:39:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2022-07-23 02:39:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2022-07-23 02:39:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-07-23 02:39:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-07-23 02:39:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-07-23 02:39:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-07-23 02:39:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 02:39:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 02:39:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2022-07-23 02:39:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 02:39:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 02:39:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 02:39:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 02:39:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 02:39:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 02:39:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 02:39:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 02:39:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 02:39:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2022-07-23 02:39:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2022-07-23 02:39:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2022-07-23 02:39:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2022-07-23 02:39:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2022-07-23 02:39:26,426 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2022-07-23 02:39:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-07-23 02:39:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-07-23 02:39:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 02:39:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 02:39:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-07-23 02:39:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-07-23 02:39:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-23 02:39:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-23 02:39:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2022-07-23 02:39:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2022-07-23 02:39:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 02:39:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 02:39:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2022-07-23 02:39:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2022-07-23 02:39:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2022-07-23 02:39:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-07-23 02:39:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-07-23 02:39:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2022-07-23 02:39:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:39:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:39:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 02:39:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-23 02:39:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-23 02:39:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-23 02:39:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-23 02:39:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 02:39:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 02:39:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 02:39:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 02:39:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 02:39:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 02:39:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 02:39:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 02:39:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2022-07-23 02:39:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2022-07-23 02:39:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 02:39:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-07-23 02:39:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-07-23 02:39:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2022-07-23 02:39:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2022-07-23 02:39:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2022-07-23 02:39:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2022-07-23 02:39:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 02:39:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 02:39:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2022-07-23 02:39:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2022-07-23 02:39:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 02:39:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 02:39:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 02:39:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2022-07-23 02:39:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2022-07-23 02:39:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 02:39:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-23 02:39:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-23 02:39:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 02:39:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 02:39:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 02:39:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 02:39:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 02:39:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 02:39:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 02:39:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 02:39:26,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 02:39:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-23 02:39:26,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-23 02:39:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:39:26,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:39:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2022-07-23 02:39:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2022-07-23 02:39:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-07-23 02:39:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-07-23 02:39:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-07-23 02:39:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-07-23 02:39:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2022-07-23 02:39:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2022-07-23 02:39:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 02:39:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 02:39:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 02:39:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 02:39:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2022-07-23 02:39:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2022-07-23 02:39:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 02:39:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 02:39:26,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 02:39:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 02:39:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2022-07-23 02:39:26,446 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2022-07-23 02:39:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2022-07-23 02:39:26,446 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2022-07-23 02:39:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 02:39:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 02:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 02:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2022-07-23 02:39:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2022-07-23 02:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 02:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2022-07-23 02:39:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2022-07-23 02:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 02:39:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2022-07-23 02:39:26,447 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2022-07-23 02:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 02:39:26,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 02:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 02:39:26,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 02:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 02:39:26,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 02:39:26,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 02:39:26,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 02:39:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 02:39:26,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 02:39:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2022-07-23 02:39:26,449 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2022-07-23 02:39:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2022-07-23 02:39:26,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2022-07-23 02:39:26,449 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-07-23 02:39:26,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-07-23 02:39:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-07-23 02:39:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-07-23 02:39:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2022-07-23 02:39:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2022-07-23 02:39:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 02:39:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 02:39:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 02:39:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 02:39:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2022-07-23 02:39:26,451 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2022-07-23 02:39:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2022-07-23 02:39:26,451 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2022-07-23 02:39:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-23 02:39:26,451 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-23 02:39:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 02:39:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 02:39:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 02:39:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 02:39:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 02:39:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 02:39:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2022-07-23 02:39:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~C_INT [2022-07-23 02:39:26,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~C_INT [2022-07-23 02:39:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2022-07-23 02:39:26,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2022-07-23 02:39:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2022-07-23 02:39:26,454 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2022-07-23 02:39:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 02:39:26,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 02:39:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 02:39:26,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 02:39:27,068 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 02:39:27,071 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 02:39:27,288 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 02:40:18,677 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 02:40:18,727 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 02:40:18,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 02:40:18,745 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 02:40:18,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:40:18 BoogieIcfgContainer [2022-07-23 02:40:18,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 02:40:18,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 02:40:18,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 02:40:18,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 02:40:18,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 02:39:22" (1/3) ... [2022-07-23 02:40:18,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505fefdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:40:18, skipping insertion in model container [2022-07-23 02:40:18,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:39:25" (2/3) ... [2022-07-23 02:40:18,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505fefdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:40:18, skipping insertion in model container [2022-07-23 02:40:18,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:40:18" (3/3) ... [2022-07-23 02:40:18,756 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-07-23 02:40:18,765 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 02:40:18,766 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 02:40:18,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 02:40:18,844 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@19ca4ba1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@595c6083 [2022-07-23 02:40:18,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 02:40:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 1697 states, 1232 states have (on average 1.3465909090909092) internal successors, (1659), 1238 states have internal predecessors, (1659), 386 states have call successors, (386), 77 states have call predecessors, (386), 76 states have return successors, (379), 379 states have call predecessors, (379), 379 states have call successors, (379) [2022-07-23 02:40:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-23 02:40:18,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:18,878 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:18,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:18,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2048722027, now seen corresponding path program 1 times [2022-07-23 02:40:18,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:18,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94215848] [2022-07-23 02:40:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:18,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:18,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:18,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:18,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 02:40:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:20,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:20,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-07-23 02:40:20,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:20,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:20,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94215848] [2022-07-23 02:40:20,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94215848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:20,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:20,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:20,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46204951] [2022-07-23 02:40:20,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:20,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:20,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:20,641 INFO L87 Difference]: Start difference. First operand has 1697 states, 1232 states have (on average 1.3465909090909092) internal successors, (1659), 1238 states have internal predecessors, (1659), 386 states have call successors, (386), 77 states have call predecessors, (386), 76 states have return successors, (379), 379 states have call predecessors, (379), 379 states have call successors, (379) 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, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-23 02:40:21,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:21,119 INFO L93 Difference]: Finished difference Result 4903 states and 7330 transitions. [2022-07-23 02:40:21,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:21,121 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, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 228 [2022-07-23 02:40:21,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:21,148 INFO L225 Difference]: With dead ends: 4903 [2022-07-23 02:40:21,148 INFO L226 Difference]: Without dead ends: 3236 [2022-07-23 02:40:21,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:21,165 INFO L413 NwaCegarLoop]: 2745 mSDtfsCounter, 2235 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 5092 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:21,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 5092 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:40:21,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2022-07-23 02:40:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3232. [2022-07-23 02:40:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 2375 states have (on average 1.3406315789473684) internal successors, (3184), 2386 states have internal predecessors, (3184), 706 states have call successors, (706), 149 states have call predecessors, (706), 148 states have return successors, (702), 702 states have call predecessors, (702), 702 states have call successors, (702) [2022-07-23 02:40:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4592 transitions. [2022-07-23 02:40:21,430 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4592 transitions. Word has length 228 [2022-07-23 02:40:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:21,431 INFO L495 AbstractCegarLoop]: Abstraction has 3232 states and 4592 transitions. [2022-07-23 02:40:21,431 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, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-23 02:40:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4592 transitions. [2022-07-23 02:40:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-23 02:40:21,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:21,437 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:21,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:21,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:21,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:21,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash 775454786, now seen corresponding path program 1 times [2022-07-23 02:40:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:21,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498528798] [2022-07-23 02:40:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:21,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:21,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:21,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:21,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 02:40:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:22,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 2035 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:22,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-07-23 02:40:23,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:23,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:23,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498528798] [2022-07-23 02:40:23,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498528798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:23,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:23,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:23,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076753041] [2022-07-23 02:40:23,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:23,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:23,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:23,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:23,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:23,037 INFO L87 Difference]: Start difference. First operand 3232 states and 4592 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-07-23 02:40:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:23,636 INFO L93 Difference]: Finished difference Result 7614 states and 10818 transitions. [2022-07-23 02:40:23,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:23,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 243 [2022-07-23 02:40:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:23,660 INFO L225 Difference]: With dead ends: 7614 [2022-07-23 02:40:23,660 INFO L226 Difference]: Without dead ends: 4423 [2022-07-23 02:40:23,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:23,673 INFO L413 NwaCegarLoop]: 2821 mSDtfsCounter, 1987 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:23,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5121 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 02:40:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-07-23 02:40:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4396. [2022-07-23 02:40:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 3187 states have (on average 1.3410731095073738) internal successors, (4274), 3206 states have internal predecessors, (4274), 985 states have call successors, (985), 222 states have call predecessors, (985), 221 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-07-23 02:40:23,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 6240 transitions. [2022-07-23 02:40:23,800 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 6240 transitions. Word has length 243 [2022-07-23 02:40:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:23,801 INFO L495 AbstractCegarLoop]: Abstraction has 4396 states and 6240 transitions. [2022-07-23 02:40:23,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-07-23 02:40:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 6240 transitions. [2022-07-23 02:40:23,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-23 02:40:23,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:23,807 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:23,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:24,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:24,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:24,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:24,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1690325682, now seen corresponding path program 1 times [2022-07-23 02:40:24,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:24,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61997146] [2022-07-23 02:40:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:24,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:24,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:24,035 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:24,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 02:40:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:25,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:25,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-07-23 02:40:25,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:25,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:25,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61997146] [2022-07-23 02:40:25,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61997146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:25,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:25,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:25,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773750667] [2022-07-23 02:40:25,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:25,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:25,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:25,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:25,478 INFO L87 Difference]: Start difference. First operand 4396 states and 6240 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 02:40:25,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:25,876 INFO L93 Difference]: Finished difference Result 10317 states and 14649 transitions. [2022-07-23 02:40:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:25,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 287 [2022-07-23 02:40:25,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:25,910 INFO L225 Difference]: With dead ends: 10317 [2022-07-23 02:40:25,910 INFO L226 Difference]: Without dead ends: 7274 [2022-07-23 02:40:25,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:25,925 INFO L413 NwaCegarLoop]: 4584 mSDtfsCounter, 2196 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:25,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 6939 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:40:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2022-07-23 02:40:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7270. [2022-07-23 02:40:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7270 states, 5297 states have (on average 1.3430243534075892) internal successors, (7114), 5322 states have internal predecessors, (7114), 1605 states have call successors, (1605), 366 states have call predecessors, (1605), 365 states have return successors, (1601), 1596 states have call predecessors, (1601), 1601 states have call successors, (1601) [2022-07-23 02:40:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7270 states to 7270 states and 10320 transitions. [2022-07-23 02:40:26,164 INFO L78 Accepts]: Start accepts. Automaton has 7270 states and 10320 transitions. Word has length 287 [2022-07-23 02:40:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:26,165 INFO L495 AbstractCegarLoop]: Abstraction has 7270 states and 10320 transitions. [2022-07-23 02:40:26,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 02:40:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7270 states and 10320 transitions. [2022-07-23 02:40:26,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-23 02:40:26,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:26,171 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:26,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:26,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:26,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:26,400 INFO L85 PathProgramCache]: Analyzing trace with hash -681413580, now seen corresponding path program 1 times [2022-07-23 02:40:26,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:26,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717641675] [2022-07-23 02:40:26,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:26,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:26,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:26,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:26,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 02:40:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:27,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:27,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-23 02:40:29,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:29,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:29,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717641675] [2022-07-23 02:40:29,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717641675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:29,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:29,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:40:29,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241158481] [2022-07-23 02:40:29,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:29,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:29,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:40:29,285 INFO L87 Difference]: Start difference. First operand 7270 states and 10320 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-23 02:40:29,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:29,599 INFO L93 Difference]: Finished difference Result 7276 states and 10325 transitions. [2022-07-23 02:40:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:40:29,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 287 [2022-07-23 02:40:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:29,636 INFO L225 Difference]: With dead ends: 7276 [2022-07-23 02:40:29,637 INFO L226 Difference]: Without dead ends: 7274 [2022-07-23 02:40:29,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:29,642 INFO L413 NwaCegarLoop]: 2385 mSDtfsCounter, 2277 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 7143 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:29,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 7143 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2022-07-23 02:40:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7274. [2022-07-23 02:40:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7274 states, 5300 states have (on average 1.3428301886792453) internal successors, (7117), 5325 states have internal predecessors, (7117), 1605 states have call successors, (1605), 367 states have call predecessors, (1605), 366 states have return successors, (1601), 1596 states have call predecessors, (1601), 1601 states have call successors, (1601) [2022-07-23 02:40:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7274 states to 7274 states and 10323 transitions. [2022-07-23 02:40:29,874 INFO L78 Accepts]: Start accepts. Automaton has 7274 states and 10323 transitions. Word has length 287 [2022-07-23 02:40:29,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:29,877 INFO L495 AbstractCegarLoop]: Abstraction has 7274 states and 10323 transitions. [2022-07-23 02:40:29,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-23 02:40:29,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7274 states and 10323 transitions. [2022-07-23 02:40:29,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-23 02:40:29,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:29,884 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:29,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:30,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:30,099 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)] === [2022-07-23 02:40:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:30,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2099691453, now seen corresponding path program 1 times [2022-07-23 02:40:30,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:30,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233516448] [2022-07-23 02:40:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:30,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:30,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:30,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:30,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 02:40:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:31,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:31,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-23 02:40:32,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-23 02:40:33,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:33,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233516448] [2022-07-23 02:40:33,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233516448] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:33,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:33,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:33,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72811509] [2022-07-23 02:40:33,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:33,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:33,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:33,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:33,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:33,735 INFO L87 Difference]: Start difference. First operand 7274 states and 10323 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-07-23 02:40:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:34,012 INFO L93 Difference]: Finished difference Result 7280 states and 10328 transitions. [2022-07-23 02:40:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 292 [2022-07-23 02:40:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:34,050 INFO L225 Difference]: With dead ends: 7280 [2022-07-23 02:40:34,055 INFO L226 Difference]: Without dead ends: 7278 [2022-07-23 02:40:34,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:34,063 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:34,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2022-07-23 02:40:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 7278. [2022-07-23 02:40:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7278 states, 5303 states have (on average 1.342636243635678) internal successors, (7120), 5328 states have internal predecessors, (7120), 1605 states have call successors, (1605), 368 states have call predecessors, (1605), 367 states have return successors, (1601), 1596 states have call predecessors, (1601), 1601 states have call successors, (1601) [2022-07-23 02:40:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 10326 transitions. [2022-07-23 02:40:34,305 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 10326 transitions. Word has length 292 [2022-07-23 02:40:34,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:34,306 INFO L495 AbstractCegarLoop]: Abstraction has 7278 states and 10326 transitions. [2022-07-23 02:40:34,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-07-23 02:40:34,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 10326 transitions. [2022-07-23 02:40:34,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-23 02:40:34,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:34,315 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 5, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:34,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:34,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:34,529 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)] === [2022-07-23 02:40:34,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash 705078606, now seen corresponding path program 1 times [2022-07-23 02:40:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:34,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211076444] [2022-07-23 02:40:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:34,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:34,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:34,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:34,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 02:40:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:35,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:35,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-07-23 02:40:36,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:36,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:36,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211076444] [2022-07-23 02:40:36,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211076444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:36,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:36,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:36,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216999785] [2022-07-23 02:40:36,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:36,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:36,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:36,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:36,010 INFO L87 Difference]: Start difference. First operand 7278 states and 10326 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-23 02:40:36,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:36,441 INFO L93 Difference]: Finished difference Result 16109 states and 22859 transitions. [2022-07-23 02:40:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:36,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 306 [2022-07-23 02:40:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:36,486 INFO L225 Difference]: With dead ends: 16109 [2022-07-23 02:40:36,486 INFO L226 Difference]: Without dead ends: 10184 [2022-07-23 02:40:36,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:36,512 INFO L413 NwaCegarLoop]: 4596 mSDtfsCounter, 2229 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 6953 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:36,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 6953 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:40:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10184 states. [2022-07-23 02:40:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10184 to 10154. [2022-07-23 02:40:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10154 states, 7415 states have (on average 1.3434929197572487) internal successors, (9962), 7446 states have internal predecessors, (9962), 2225 states have call successors, (2225), 512 states have call predecessors, (2225), 511 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-07-23 02:40:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 14408 transitions. [2022-07-23 02:40:36,829 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 14408 transitions. Word has length 306 [2022-07-23 02:40:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:36,831 INFO L495 AbstractCegarLoop]: Abstraction has 10154 states and 14408 transitions. [2022-07-23 02:40:36,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-23 02:40:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 14408 transitions. [2022-07-23 02:40:36,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-23 02:40:36,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:36,838 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:36,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:37,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:37,063 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:37,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:37,064 INFO L85 PathProgramCache]: Analyzing trace with hash -948454060, now seen corresponding path program 1 times [2022-07-23 02:40:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:37,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859880905] [2022-07-23 02:40:37,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:37,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:37,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:37,067 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:37,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 02:40:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:38,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:38,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-07-23 02:40:39,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:40,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-07-23 02:40:40,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:40,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859880905] [2022-07-23 02:40:40,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859880905] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:40,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:40,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:40,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851331777] [2022-07-23 02:40:40,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:40,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:40,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:40,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:40,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:40,408 INFO L87 Difference]: Start difference. First operand 10154 states and 14408 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-07-23 02:40:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:40,828 INFO L93 Difference]: Finished difference Result 10160 states and 14413 transitions. [2022-07-23 02:40:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:40,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 297 [2022-07-23 02:40:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:40,879 INFO L225 Difference]: With dead ends: 10160 [2022-07-23 02:40:40,879 INFO L226 Difference]: Without dead ends: 10158 [2022-07-23 02:40:40,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:40,886 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:40,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2022-07-23 02:40:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 10158. [2022-07-23 02:40:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10158 states, 7418 states have (on average 1.3433540037746023) internal successors, (9965), 7449 states have internal predecessors, (9965), 2225 states have call successors, (2225), 513 states have call predecessors, (2225), 512 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-07-23 02:40:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10158 states to 10158 states and 14411 transitions. [2022-07-23 02:40:41,248 INFO L78 Accepts]: Start accepts. Automaton has 10158 states and 14411 transitions. Word has length 297 [2022-07-23 02:40:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:41,249 INFO L495 AbstractCegarLoop]: Abstraction has 10158 states and 14411 transitions. [2022-07-23 02:40:41,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-07-23 02:40:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 10158 states and 14411 transitions. [2022-07-23 02:40:41,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-23 02:40:41,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:41,256 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:41,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:41,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:41,471 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 545184419, now seen corresponding path program 1 times [2022-07-23 02:40:41,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:41,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637567200] [2022-07-23 02:40:41,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:41,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:41,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:41,475 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:41,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 02:40:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:42,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:42,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-07-23 02:40:44,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-07-23 02:40:44,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:44,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637567200] [2022-07-23 02:40:44,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637567200] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:44,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:44,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:44,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778352804] [2022-07-23 02:40:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:44,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:44,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:44,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:44,929 INFO L87 Difference]: Start difference. First operand 10158 states and 14411 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-07-23 02:40:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:45,259 INFO L93 Difference]: Finished difference Result 10164 states and 14416 transitions. [2022-07-23 02:40:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:45,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 302 [2022-07-23 02:40:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:45,290 INFO L225 Difference]: With dead ends: 10164 [2022-07-23 02:40:45,290 INFO L226 Difference]: Without dead ends: 10162 [2022-07-23 02:40:45,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:45,297 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2312 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:45,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2312 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:40:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10162 states. [2022-07-23 02:40:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10162 to 10162. [2022-07-23 02:40:45,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10162 states, 7421 states have (on average 1.3432152001078022) internal successors, (9968), 7452 states have internal predecessors, (9968), 2225 states have call successors, (2225), 514 states have call predecessors, (2225), 513 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-07-23 02:40:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10162 states to 10162 states and 14414 transitions. [2022-07-23 02:40:45,611 INFO L78 Accepts]: Start accepts. Automaton has 10162 states and 14414 transitions. Word has length 302 [2022-07-23 02:40:45,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:45,612 INFO L495 AbstractCegarLoop]: Abstraction has 10162 states and 14414 transitions. [2022-07-23 02:40:45,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2022-07-23 02:40:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10162 states and 14414 transitions. [2022-07-23 02:40:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-07-23 02:40:45,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:45,620 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:45,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:45,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:45,836 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:45,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1464716916, now seen corresponding path program 1 times [2022-07-23 02:40:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:45,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484118332] [2022-07-23 02:40:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:45,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:45,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:45,839 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:45,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 02:40:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:47,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:47,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-23 02:40:48,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-23 02:40:49,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:49,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484118332] [2022-07-23 02:40:49,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484118332] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:49,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:49,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697969693] [2022-07-23 02:40:49,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:49,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:49,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:49,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:49,123 INFO L87 Difference]: Start difference. First operand 10162 states and 14414 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-23 02:40:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:49,488 INFO L93 Difference]: Finished difference Result 10168 states and 14419 transitions. [2022-07-23 02:40:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:49,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 307 [2022-07-23 02:40:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:49,521 INFO L225 Difference]: With dead ends: 10168 [2022-07-23 02:40:49,522 INFO L226 Difference]: Without dead ends: 10166 [2022-07-23 02:40:49,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:49,529 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:49,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:49,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10166 states. [2022-07-23 02:40:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10166 to 10166. [2022-07-23 02:40:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10166 states, 7424 states have (on average 1.3430765086206897) internal successors, (9971), 7455 states have internal predecessors, (9971), 2225 states have call successors, (2225), 515 states have call predecessors, (2225), 514 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-07-23 02:40:49,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10166 states to 10166 states and 14417 transitions. [2022-07-23 02:40:49,864 INFO L78 Accepts]: Start accepts. Automaton has 10166 states and 14417 transitions. Word has length 307 [2022-07-23 02:40:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:49,865 INFO L495 AbstractCegarLoop]: Abstraction has 10166 states and 14417 transitions. [2022-07-23 02:40:49,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-23 02:40:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 10166 states and 14417 transitions. [2022-07-23 02:40:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-07-23 02:40:49,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:49,873 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:49,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:50,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:50,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:50,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:50,096 INFO L85 PathProgramCache]: Analyzing trace with hash 381872330, now seen corresponding path program 1 times [2022-07-23 02:40:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:50,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308841562] [2022-07-23 02:40:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:50,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:50,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:50,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:50,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 02:40:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:51,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:51,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-07-23 02:40:52,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:52,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:52,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308841562] [2022-07-23 02:40:52,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308841562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:52,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:52,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:52,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685112284] [2022-07-23 02:40:52,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:52,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:52,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:52,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:52,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:52,037 INFO L87 Difference]: Start difference. First operand 10166 states and 14417 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-23 02:40:52,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:52,883 INFO L93 Difference]: Finished difference Result 27356 states and 38760 transitions. [2022-07-23 02:40:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:52,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 441 [2022-07-23 02:40:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:52,938 INFO L225 Difference]: With dead ends: 27356 [2022-07-23 02:40:52,938 INFO L226 Difference]: Without dead ends: 17231 [2022-07-23 02:40:52,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:52,967 INFO L413 NwaCegarLoop]: 2781 mSDtfsCounter, 1698 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 5128 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:52,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 5128 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:40:52,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17231 states. [2022-07-23 02:40:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17231 to 17172. [2022-07-23 02:40:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17172 states, 12644 states have (on average 1.341901297057893) internal successors, (16967), 12711 states have internal predecessors, (16967), 3650 states have call successors, (3650), 876 states have call predecessors, (3650), 875 states have return successors, (3646), 3619 states have call predecessors, (3646), 3646 states have call successors, (3646) [2022-07-23 02:40:53,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17172 states to 17172 states and 24263 transitions. [2022-07-23 02:40:53,596 INFO L78 Accepts]: Start accepts. Automaton has 17172 states and 24263 transitions. Word has length 441 [2022-07-23 02:40:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:53,597 INFO L495 AbstractCegarLoop]: Abstraction has 17172 states and 24263 transitions. [2022-07-23 02:40:53,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-23 02:40:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand 17172 states and 24263 transitions. [2022-07-23 02:40:53,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-07-23 02:40:53,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:53,605 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:53,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:53,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:53,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1342567629, now seen corresponding path program 1 times [2022-07-23 02:40:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:53,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013825688] [2022-07-23 02:40:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:53,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:53,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:53,831 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:53,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 02:40:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:55,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:55,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-07-23 02:40:55,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:55,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:55,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013825688] [2022-07-23 02:40:55,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013825688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:55,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:55,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:55,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475230269] [2022-07-23 02:40:55,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:55,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:55,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:55,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:55,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:55,845 INFO L87 Difference]: Start difference. First operand 17172 states and 24263 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-23 02:40:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:56,728 INFO L93 Difference]: Finished difference Result 42119 states and 59393 transitions. [2022-07-23 02:40:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 435 [2022-07-23 02:40:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:56,826 INFO L225 Difference]: With dead ends: 42119 [2022-07-23 02:40:56,826 INFO L226 Difference]: Without dead ends: 24988 [2022-07-23 02:40:56,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:56,868 INFO L413 NwaCegarLoop]: 2790 mSDtfsCounter, 1936 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:56,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 5138 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:40:56,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24988 states. [2022-07-23 02:40:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24988 to 24935. [2022-07-23 02:40:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24935 states, 18352 states have (on average 1.3359306887532694) internal successors, (24517), 18457 states have internal predecessors, (24517), 5275 states have call successors, (5275), 1306 states have call predecessors, (5275), 1305 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-07-23 02:40:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24935 states to 24935 states and 35063 transitions. [2022-07-23 02:40:58,224 INFO L78 Accepts]: Start accepts. Automaton has 24935 states and 35063 transitions. Word has length 435 [2022-07-23 02:40:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:58,227 INFO L495 AbstractCegarLoop]: Abstraction has 24935 states and 35063 transitions. [2022-07-23 02:40:58,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-23 02:40:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 24935 states and 35063 transitions. [2022-07-23 02:40:58,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-23 02:40:58,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:58,234 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:58,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:58,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:58,448 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:58,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1067494659, now seen corresponding path program 1 times [2022-07-23 02:40:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:58,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938159652] [2022-07-23 02:40:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:58,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:58,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:58,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 02:40:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:59,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:59,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2022-07-23 02:41:01,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2022-07-23 02:41:02,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:02,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938159652] [2022-07-23 02:41:02,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938159652] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:02,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:02,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:02,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059664866] [2022-07-23 02:41:02,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:02,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:02,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:02,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:02,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:02,720 INFO L87 Difference]: Start difference. First operand 24935 states and 35063 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-23 02:41:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:03,327 INFO L93 Difference]: Finished difference Result 24941 states and 35068 transitions. [2022-07-23 02:41:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 312 [2022-07-23 02:41:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:03,455 INFO L225 Difference]: With dead ends: 24941 [2022-07-23 02:41:03,456 INFO L226 Difference]: Without dead ends: 24939 [2022-07-23 02:41:03,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:03,475 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:03,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:03,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24939 states. [2022-07-23 02:41:04,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24939 to 24939. [2022-07-23 02:41:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24939 states, 18355 states have (on average 1.33587578316535) internal successors, (24520), 18460 states have internal predecessors, (24520), 5275 states have call successors, (5275), 1307 states have call predecessors, (5275), 1306 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-07-23 02:41:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24939 states to 24939 states and 35066 transitions. [2022-07-23 02:41:04,292 INFO L78 Accepts]: Start accepts. Automaton has 24939 states and 35066 transitions. Word has length 312 [2022-07-23 02:41:04,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:41:04,293 INFO L495 AbstractCegarLoop]: Abstraction has 24939 states and 35066 transitions. [2022-07-23 02:41:04,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-23 02:41:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 24939 states and 35066 transitions. [2022-07-23 02:41:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-23 02:41:04,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:41:04,297 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:41:04,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 02:41:04,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:41:04,523 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:41:04,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:41:04,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2104842348, now seen corresponding path program 1 times [2022-07-23 02:41:04,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:41:04,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119475203] [2022-07-23 02:41:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:41:04,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:41:04,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:41:04,544 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:41:04,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 02:41:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:41:05,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:41:05,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-07-23 02:41:07,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-07-23 02:41:07,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:07,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119475203] [2022-07-23 02:41:07,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119475203] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:07,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:07,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:07,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450509795] [2022-07-23 02:41:07,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:07,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:07,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:07,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:07,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:07,843 INFO L87 Difference]: Start difference. First operand 24939 states and 35066 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-23 02:41:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:08,609 INFO L93 Difference]: Finished difference Result 24945 states and 35071 transitions. [2022-07-23 02:41:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:08,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 317 [2022-07-23 02:41:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:08,726 INFO L225 Difference]: With dead ends: 24945 [2022-07-23 02:41:08,727 INFO L226 Difference]: Without dead ends: 24943 [2022-07-23 02:41:08,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:08,747 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:08,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:08,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24943 states. [2022-07-23 02:41:09,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24943 to 24943. [2022-07-23 02:41:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24943 states, 18358 states have (on average 1.335820895522388) internal successors, (24523), 18463 states have internal predecessors, (24523), 5275 states have call successors, (5275), 1308 states have call predecessors, (5275), 1307 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-07-23 02:41:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24943 states to 24943 states and 35069 transitions. [2022-07-23 02:41:09,710 INFO L78 Accepts]: Start accepts. Automaton has 24943 states and 35069 transitions. Word has length 317 [2022-07-23 02:41:09,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:41:09,712 INFO L495 AbstractCegarLoop]: Abstraction has 24943 states and 35069 transitions. [2022-07-23 02:41:09,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-23 02:41:09,712 INFO L276 IsEmpty]: Start isEmpty. Operand 24943 states and 35069 transitions. [2022-07-23 02:41:09,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-23 02:41:09,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:41:09,718 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:41:09,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 02:41:09,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:41:09,931 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:41:09,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:41:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1012447075, now seen corresponding path program 1 times [2022-07-23 02:41:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:41:09,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058133040] [2022-07-23 02:41:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:41:09,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:41:09,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:41:09,935 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:41:09,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 02:41:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:41:11,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:41:11,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-07-23 02:41:12,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-07-23 02:41:13,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:13,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058133040] [2022-07-23 02:41:13,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058133040] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:13,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:13,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512315761] [2022-07-23 02:41:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:13,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:13,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:13,581 INFO L87 Difference]: Start difference. First operand 24943 states and 35069 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-23 02:41:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:14,265 INFO L93 Difference]: Finished difference Result 25103 states and 35184 transitions. [2022-07-23 02:41:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:14,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 322 [2022-07-23 02:41:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:14,357 INFO L225 Difference]: With dead ends: 25103 [2022-07-23 02:41:14,358 INFO L226 Difference]: Without dead ends: 25101 [2022-07-23 02:41:14,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:14,377 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2221 mSDsluCounter, 4843 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 7231 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:14,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 7231 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25101 states. [2022-07-23 02:41:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25101 to 25101. [2022-07-23 02:41:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25101 states, 18471 states have (on average 1.3337664446970927) internal successors, (24636), 18576 states have internal predecessors, (24636), 5275 states have call successors, (5275), 1353 states have call predecessors, (5275), 1352 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-07-23 02:41:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25101 states to 25101 states and 35182 transitions. [2022-07-23 02:41:15,180 INFO L78 Accepts]: Start accepts. Automaton has 25101 states and 35182 transitions. Word has length 322 [2022-07-23 02:41:15,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:41:15,180 INFO L495 AbstractCegarLoop]: Abstraction has 25101 states and 35182 transitions. [2022-07-23 02:41:15,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-23 02:41:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 25101 states and 35182 transitions. [2022-07-23 02:41:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-23 02:41:15,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:41:15,186 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:41:15,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-23 02:41:15,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:41:15,399 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:41:15,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:41:15,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1834240180, now seen corresponding path program 1 times [2022-07-23 02:41:15,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:41:15,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313936218] [2022-07-23 02:41:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:41:15,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:41:15,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:41:15,403 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:41:15,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 02:41:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:41:16,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:41:16,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2022-07-23 02:41:18,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2022-07-23 02:41:18,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:18,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313936218] [2022-07-23 02:41:18,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313936218] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:18,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:18,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:18,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225303233] [2022-07-23 02:41:18,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:18,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:18,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:18,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:18,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:18,851 INFO L87 Difference]: Start difference. First operand 25101 states and 35182 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-23 02:41:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:19,603 INFO L93 Difference]: Finished difference Result 25107 states and 35187 transitions. [2022-07-23 02:41:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 327 [2022-07-23 02:41:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:19,691 INFO L225 Difference]: With dead ends: 25107 [2022-07-23 02:41:19,692 INFO L226 Difference]: Without dead ends: 25105 [2022-07-23 02:41:19,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:19,711 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:19,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:19,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25105 states. [2022-07-23 02:41:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25105 to 25105. [2022-07-23 02:41:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25105 states, 18474 states have (on average 1.3337122442351412) internal successors, (24639), 18579 states have internal predecessors, (24639), 5275 states have call successors, (5275), 1354 states have call predecessors, (5275), 1353 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-07-23 02:41:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25105 states to 25105 states and 35185 transitions. [2022-07-23 02:41:20,712 INFO L78 Accepts]: Start accepts. Automaton has 25105 states and 35185 transitions. Word has length 327 [2022-07-23 02:41:20,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:41:20,713 INFO L495 AbstractCegarLoop]: Abstraction has 25105 states and 35185 transitions. [2022-07-23 02:41:20,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-23 02:41:20,713 INFO L276 IsEmpty]: Start isEmpty. Operand 25105 states and 35185 transitions. [2022-07-23 02:41:20,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-23 02:41:20,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:41:20,736 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:41:20,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-23 02:41:20,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:41:20,937 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)] === [2022-07-23 02:41:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:41:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1707017789, now seen corresponding path program 1 times [2022-07-23 02:41:20,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:41:20,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367719345] [2022-07-23 02:41:20,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:41:20,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:41:20,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:41:20,941 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:41:20,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 02:41:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:41:22,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:41:22,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:23,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-07-23 02:41:23,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-07-23 02:41:24,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367719345] [2022-07-23 02:41:24,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367719345] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:24,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:24,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:24,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509436549] [2022-07-23 02:41:24,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:24,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:24,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:24,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:24,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:24,590 INFO L87 Difference]: Start difference. First operand 25105 states and 35185 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-23 02:41:25,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:25,330 INFO L93 Difference]: Finished difference Result 25111 states and 35190 transitions. [2022-07-23 02:41:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:25,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 332 [2022-07-23 02:41:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:25,444 INFO L225 Difference]: With dead ends: 25111 [2022-07-23 02:41:25,444 INFO L226 Difference]: Without dead ends: 25109 [2022-07-23 02:41:25,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 665 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:25,466 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:25,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25109 states. [2022-07-23 02:41:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25109 to 25109. [2022-07-23 02:41:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25109 states, 18477 states have (on average 1.3336580613735995) internal successors, (24642), 18582 states have internal predecessors, (24642), 5275 states have call successors, (5275), 1355 states have call predecessors, (5275), 1354 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-07-23 02:41:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25109 states to 25109 states and 35188 transitions. [2022-07-23 02:41:26,519 INFO L78 Accepts]: Start accepts. Automaton has 25109 states and 35188 transitions. Word has length 332 [2022-07-23 02:41:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:41:26,520 INFO L495 AbstractCegarLoop]: Abstraction has 25109 states and 35188 transitions. [2022-07-23 02:41:26,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-23 02:41:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 25109 states and 35188 transitions. [2022-07-23 02:41:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-07-23 02:41:26,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:41:26,529 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 18, 18, 18, 18, 18, 18, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:41:26,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 02:41:26,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:41:26,756 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:41:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:41:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1323935749, now seen corresponding path program 1 times [2022-07-23 02:41:26,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:41:26,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687006632] [2022-07-23 02:41:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:41:26,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:41:26,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:41:26,759 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:41:26,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 02:41:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:41:28,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-23 02:41:28,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 321 proven. 3 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2022-07-23 02:41:28,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 1959 trivial. 0 not checked. [2022-07-23 02:41:29,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:29,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687006632] [2022-07-23 02:41:29,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687006632] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 02:41:29,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 02:41:29,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-23 02:41:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991184649] [2022-07-23 02:41:29,890 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 02:41:29,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-23 02:41:29,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-23 02:41:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-23 02:41:29,891 INFO L87 Difference]: Start difference. First operand 25109 states and 35188 transitions. Second operand has 22 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 6 states have call successors, (64), 3 states have call predecessors, (64), 8 states have return successors, (63), 7 states have call predecessors, (63), 6 states have call successors, (63) [2022-07-23 02:41:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:51,535 INFO L93 Difference]: Finished difference Result 65021 states and 91035 transitions. [2022-07-23 02:41:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-23 02:41:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 6 states have call successors, (64), 3 states have call predecessors, (64), 8 states have return successors, (63), 7 states have call predecessors, (63), 6 states have call successors, (63) Word has length 372 [2022-07-23 02:41:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:51,747 INFO L225 Difference]: With dead ends: 65021 [2022-07-23 02:41:51,748 INFO L226 Difference]: Without dead ends: 40939 [2022-07-23 02:41:51,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-23 02:41:51,821 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 8011 mSDsluCounter, 70255 mSDsCounter, 0 mSdLazyCounter, 5261 mSolverCounterSat, 1242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8200 SdHoareTripleChecker+Valid, 74808 SdHoareTripleChecker+Invalid, 6503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 5261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:51,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8200 Valid, 74808 Invalid, 6503 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1242 Valid, 5261 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2022-07-23 02:41:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40939 states. [2022-07-23 02:41:53,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40939 to 33016. [2022-07-23 02:41:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33016 states, 24303 states have (on average 1.333415627700284) internal successors, (32406), 24428 states have internal predecessors, (32406), 6914 states have call successors, (6914), 1797 states have call predecessors, (6914), 1796 states have return successors, (6910), 6839 states have call predecessors, (6910), 6910 states have call successors, (6910) [2022-07-23 02:41:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33016 states to 33016 states and 46230 transitions. [2022-07-23 02:41:53,735 INFO L78 Accepts]: Start accepts. Automaton has 33016 states and 46230 transitions. Word has length 372 [2022-07-23 02:41:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:41:53,736 INFO L495 AbstractCegarLoop]: Abstraction has 33016 states and 46230 transitions. [2022-07-23 02:41:53,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.0) internal successors, (126), 20 states have internal predecessors, (126), 6 states have call successors, (64), 3 states have call predecessors, (64), 8 states have return successors, (63), 7 states have call predecessors, (63), 6 states have call successors, (63) [2022-07-23 02:41:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 33016 states and 46230 transitions. [2022-07-23 02:41:53,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-07-23 02:41:53,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:41:53,742 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 11, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:41:53,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-23 02:41:53,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:41:53,968 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:41:53,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:41:53,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1001344556, now seen corresponding path program 1 times [2022-07-23 02:41:53,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:41:53,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737919002] [2022-07-23 02:41:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:41:53,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:41:53,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:41:53,971 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:41:53,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 02:41:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:41:55,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:41:55,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1847 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-07-23 02:41:57,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1847 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-07-23 02:41:58,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737919002] [2022-07-23 02:41:58,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737919002] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:58,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:58,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283530277] [2022-07-23 02:41:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:58,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:58,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:58,557 INFO L87 Difference]: Start difference. First operand 33016 states and 46230 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-23 02:41:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:59,744 INFO L93 Difference]: Finished difference Result 33022 states and 46235 transitions. [2022-07-23 02:41:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:59,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 337 [2022-07-23 02:41:59,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:59,903 INFO L225 Difference]: With dead ends: 33022 [2022-07-23 02:41:59,903 INFO L226 Difference]: Without dead ends: 33018 [2022-07-23 02:41:59,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:59,932 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 2304 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:59,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:59,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33018 states. [2022-07-23 02:42:01,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33018 to 33018. [2022-07-23 02:42:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33018 states, 24305 states have (on average 1.3333470479325242) internal successors, (32407), 24429 states have internal predecessors, (32407), 6914 states have call successors, (6914), 1798 states have call predecessors, (6914), 1796 states have return successors, (6910), 6839 states have call predecessors, (6910), 6910 states have call successors, (6910) [2022-07-23 02:42:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33018 states to 33018 states and 46231 transitions. [2022-07-23 02:42:01,526 INFO L78 Accepts]: Start accepts. Automaton has 33018 states and 46231 transitions. Word has length 337 [2022-07-23 02:42:01,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:42:01,527 INFO L495 AbstractCegarLoop]: Abstraction has 33018 states and 46231 transitions. [2022-07-23 02:42:01,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-23 02:42:01,527 INFO L276 IsEmpty]: Start isEmpty. Operand 33018 states and 46231 transitions. [2022-07-23 02:42:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-07-23 02:42:01,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:42:01,536 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:42:01,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-23 02:42:01,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:42:01,741 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:42:01,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:42:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash -263964520, now seen corresponding path program 1 times [2022-07-23 02:42:01,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:42:01,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742588466] [2022-07-23 02:42:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:42:01,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:42:01,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:42:01,745 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:42:01,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-23 02:42:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:42:03,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:42:03,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:42:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-07-23 02:42:03,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:42:03,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:42:03,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742588466] [2022-07-23 02:42:03,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742588466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:42:03,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:42:03,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:42:03,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951853765] [2022-07-23 02:42:03,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:42:03,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:42:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:42:03,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:42:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:42:03,813 INFO L87 Difference]: Start difference. First operand 33018 states and 46231 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-23 02:42:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:42:06,068 INFO L93 Difference]: Finished difference Result 96539 states and 135203 transitions. [2022-07-23 02:42:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:42:06,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 463 [2022-07-23 02:42:06,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:42:06,277 INFO L225 Difference]: With dead ends: 96539 [2022-07-23 02:42:06,277 INFO L226 Difference]: Without dead ends: 63491 [2022-07-23 02:42:06,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:42:06,360 INFO L413 NwaCegarLoop]: 3488 mSDtfsCounter, 2302 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:42:06,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 5854 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 02:42:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63491 states. [2022-07-23 02:42:09,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63491 to 63410. [2022-07-23 02:42:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63410 states, 46739 states have (on average 1.3334046513618178) internal successors, (62322), 46955 states have internal predecessors, (62322), 13221 states have call successors, (13221), 3457 states have call predecessors, (13221), 3447 states have return successors, (13217), 13093 states have call predecessors, (13217), 13217 states have call successors, (13217) [2022-07-23 02:42:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63410 states to 63410 states and 88760 transitions. [2022-07-23 02:42:09,472 INFO L78 Accepts]: Start accepts. Automaton has 63410 states and 88760 transitions. Word has length 463 [2022-07-23 02:42:09,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:42:09,487 INFO L495 AbstractCegarLoop]: Abstraction has 63410 states and 88760 transitions. [2022-07-23 02:42:09,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-23 02:42:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 63410 states and 88760 transitions. [2022-07-23 02:42:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-23 02:42:09,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:42:09,508 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 12, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:42:09,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-23 02:42:09,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:42:09,709 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:42:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:42:09,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1535937501, now seen corresponding path program 1 times [2022-07-23 02:42:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:42:09,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72384338] [2022-07-23 02:42:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:42:09,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:42:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:42:09,714 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:42:09,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-23 02:42:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:42:11,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:42:11,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:42:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-07-23 02:42:12,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:42:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-07-23 02:42:13,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:42:13,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72384338] [2022-07-23 02:42:13,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72384338] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:42:13,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:42:13,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:42:13,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697727073] [2022-07-23 02:42:13,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:42:13,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:42:13,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:42:13,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:42:13,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:42:13,094 INFO L87 Difference]: Start difference. First operand 63410 states and 88760 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-23 02:42:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:42:15,545 INFO L93 Difference]: Finished difference Result 63410 states and 88760 transitions. [2022-07-23 02:42:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:42:15,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 342 [2022-07-23 02:42:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:42:15,878 INFO L225 Difference]: With dead ends: 63410 [2022-07-23 02:42:15,878 INFO L226 Difference]: Without dead ends: 62912 [2022-07-23 02:42:15,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:42:15,903 INFO L413 NwaCegarLoop]: 2386 mSDtfsCounter, 2300 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 7142 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:42:15,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 7142 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:42:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62912 states. [2022-07-23 02:42:17,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62912 to 47565. [2022-07-23 02:42:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47565 states, 35082 states have (on average 1.3329912775782453) internal successors, (46764), 35218 states have internal predecessors, (46764), 9892 states have call successors, (9892), 2589 states have call predecessors, (9892), 2589 states have return successors, (9892), 9829 states have call predecessors, (9892), 9892 states have call successors, (9892) [2022-07-23 02:42:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47565 states to 47565 states and 66548 transitions. [2022-07-23 02:42:18,188 INFO L78 Accepts]: Start accepts. Automaton has 47565 states and 66548 transitions. Word has length 342 [2022-07-23 02:42:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:42:18,188 INFO L495 AbstractCegarLoop]: Abstraction has 47565 states and 66548 transitions. [2022-07-23 02:42:18,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-23 02:42:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 47565 states and 66548 transitions. [2022-07-23 02:42:18,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-23 02:42:18,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:42:18,198 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 18, 18, 18, 18, 18, 18, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:42:18,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-23 02:42:18,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:42:18,425 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:42:18,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:42:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1473888471, now seen corresponding path program 1 times [2022-07-23 02:42:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:42:18,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793883211] [2022-07-23 02:42:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:42:18,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:42:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:42:18,428 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:42:18,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-23 02:42:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:42:19,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:42:19,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:42:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2022-07-23 02:42:19,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:42:19,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:42:19,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793883211] [2022-07-23 02:42:19,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793883211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:42:19,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:42:19,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:42:19,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525823587] [2022-07-23 02:42:19,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:42:19,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:42:19,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:42:19,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:42:19,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:42:19,993 INFO L87 Difference]: Start difference. First operand 47565 states and 66548 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-23 02:42:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:42:23,168 INFO L93 Difference]: Finished difference Result 110510 states and 154682 transitions. [2022-07-23 02:42:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:42:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 357 [2022-07-23 02:42:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:42:23,398 INFO L225 Difference]: With dead ends: 110510 [2022-07-23 02:42:23,398 INFO L226 Difference]: Without dead ends: 62916 [2022-07-23 02:42:23,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:42:23,511 INFO L413 NwaCegarLoop]: 4474 mSDtfsCounter, 2190 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:42:23,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 6782 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:42:23,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62916 states. [2022-07-23 02:42:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62916 to 47565. [2022-07-23 02:42:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47565 states, 35082 states have (on average 1.332962772931988) internal successors, (46763), 35218 states have internal predecessors, (46763), 9892 states have call successors, (9892), 2589 states have call predecessors, (9892), 2589 states have return successors, (9892), 9829 states have call predecessors, (9892), 9892 states have call successors, (9892) [2022-07-23 02:42:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47565 states to 47565 states and 66547 transitions. [2022-07-23 02:42:26,377 INFO L78 Accepts]: Start accepts. Automaton has 47565 states and 66547 transitions. Word has length 357 [2022-07-23 02:42:26,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:42:26,378 INFO L495 AbstractCegarLoop]: Abstraction has 47565 states and 66547 transitions. [2022-07-23 02:42:26,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-23 02:42:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 47565 states and 66547 transitions. [2022-07-23 02:42:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-23 02:42:26,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:42:26,388 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 18, 18, 18, 18, 18, 18, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:42:26,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-23 02:42:26,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:42:26,604 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:42:26,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:42:26,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1056491865, now seen corresponding path program 1 times [2022-07-23 02:42:26,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:42:26,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506545254] [2022-07-23 02:42:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:42:26,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:42:26,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:42:26,607 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:42:26,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-23 02:42:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:42:27,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:42:27,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:42:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2022-07-23 02:42:28,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:42:28,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:42:28,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506545254] [2022-07-23 02:42:28,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506545254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:42:28,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:42:28,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:42:28,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255661143] [2022-07-23 02:42:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:42:28,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:42:28,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:42:28,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:42:28,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:42:28,066 INFO L87 Difference]: Start difference. First operand 47565 states and 66547 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-23 02:42:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:42:31,494 INFO L93 Difference]: Finished difference Result 110578 states and 154811 transitions. [2022-07-23 02:42:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:42:31,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 357 [2022-07-23 02:42:31,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:42:31,820 INFO L225 Difference]: With dead ends: 110578 [2022-07-23 02:42:31,820 INFO L226 Difference]: Without dead ends: 63103 [2022-07-23 02:42:31,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:42:31,958 INFO L413 NwaCegarLoop]: 4527 mSDtfsCounter, 2196 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 6831 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:42:31,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 6831 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 02:42:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63103 states. [2022-07-23 02:42:34,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63103 to 63099. [2022-07-23 02:42:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63099 states, 46566 states have (on average 1.3335695571876476) internal successors, (62099), 46734 states have internal predecessors, (62099), 13106 states have call successors, (13106), 3425 states have call predecessors, (13106), 3425 states have return successors, (13106), 13035 states have call predecessors, (13106), 13106 states have call successors, (13106) [2022-07-23 02:42:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63099 states to 63099 states and 88311 transitions. [2022-07-23 02:42:35,416 INFO L78 Accepts]: Start accepts. Automaton has 63099 states and 88311 transitions. Word has length 357 [2022-07-23 02:42:35,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:42:35,416 INFO L495 AbstractCegarLoop]: Abstraction has 63099 states and 88311 transitions. [2022-07-23 02:42:35,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-23 02:42:35,417 INFO L276 IsEmpty]: Start isEmpty. Operand 63099 states and 88311 transitions. [2022-07-23 02:42:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-23 02:42:35,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:42:35,431 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 18, 18, 18, 18, 18, 18, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:42:35,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-23 02:42:35,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:42:35,656 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:42:35,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:42:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1128285865, now seen corresponding path program 1 times [2022-07-23 02:42:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:42:35,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96451559] [2022-07-23 02:42:35,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:42:35,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:42:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:42:35,659 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:42:35,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process