./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_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-?-eb692b5 [2022-07-20 02:24:15,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:24:15,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:24:15,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:24:15,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:24:15,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:24:15,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:24:15,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:24:15,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:24:15,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:24:15,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:24:15,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:24:15,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:24:15,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:24:15,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:24:15,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:24:15,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:24:15,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:24:15,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:24:15,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:24:15,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:24:15,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:24:15,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:24:15,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:24:15,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:24:15,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:24:15,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:24:15,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:24:15,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:24:15,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:24:15,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:24:15,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:24:15,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:24:15,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:24:15,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:24:15,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:24:15,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:24:15,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:24:15,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:24:15,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:24:15,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:24:15,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:24:15,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:24:15,364 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:24:15,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:24:15,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:24:15,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:24:15,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:24:15,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:24:15,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:24:15,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:24:15,367 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:24:15,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:24:15,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:24:15,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:24:15,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:24:15,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:24:15,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:24:15,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:24:15,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:24:15,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:24:15,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:24:15,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:24:15,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:24:15,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:24:15,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:24:15,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:24:15,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:24:15,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:24:15,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:24:15,373 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:24:15,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:24:15,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:24:15,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-07-20 02:24:15,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:24:15,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:24:15,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:24:15,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:24:15,605 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:24:15,606 INFO L432 ainManager$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 [2022-07-20 02:24:15,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684f7a789/9affcbe27b0e4e86901db58d9406fcdf/FLAG2cec187d0 [2022-07-20 02:24:16,376 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:24:16,376 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 [2022-07-20 02:24:16,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684f7a789/9affcbe27b0e4e86901db58d9406fcdf/FLAG2cec187d0 [2022-07-20 02:24:16,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684f7a789/9affcbe27b0e4e86901db58d9406fcdf [2022-07-20 02:24:16,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:24:16,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:24:16,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:24:16,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:24:16,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:24:16,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:24:16" (1/1) ... [2022-07-20 02:24:16,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb37974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:16, skipping insertion in model container [2022-07-20 02:24:16,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:24:16" (1/1) ... [2022-07-20 02:24:16,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:24:16,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:24:18,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2022-07-20 02:24:18,602 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] [2022-07-20 02:24:18,602 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] [2022-07-20 02:24:18,602 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] [2022-07-20 02:24:18,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:24:18,663 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:24:18,813 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) [2022-07-20 02:24:18,822 INFO L158 Benchmark]: Toolchain (without parser) took 2337.46ms. Allocated memory was 102.8MB in the beginning and 165.7MB in the end (delta: 62.9MB). Free memory was 56.0MB in the beginning and 96.5MB in the end (delta: -40.5MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2022-07-20 02:24:18,823 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 02:24:18,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2335.80ms. Allocated memory was 102.8MB in the beginning and 165.7MB in the end (delta: 62.9MB). Free memory was 55.8MB in the beginning and 96.5MB in the end (delta: -40.8MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-07-20 02:24:18,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2335.80ms. Allocated memory was 102.8MB in the beginning and 165.7MB in the end (delta: 62.9MB). Free memory was 55.8MB in the beginning and 96.5MB in the end (delta: -40.8MB). Peak memory consumption was 60.3MB. 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-?-eb692b5 [2022-07-20 02:24:20,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:24:20,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:24:20,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:24:20,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:24:20,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:24:20,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:24:20,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:24:20,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:24:20,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:24:20,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:24:20,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:24:20,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:24:20,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:24:20,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:24:20,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:24:20,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:24:20,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:24:20,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:24:20,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:24:20,612 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:24:20,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:24:20,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:24:20,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:24:20,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:24:20,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:24:20,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:24:20,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:24:20,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:24:20,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:24:20,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:24:20,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:24:20,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:24:20,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:24:20,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:24:20,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:24:20,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:24:20,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:24:20,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:24:20,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:24:20,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:24:20,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:24:20,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 02:24:20,669 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:24:20,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:24:20,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:24:20,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:24:20,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:24:20,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:24:20,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:24:20,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:24:20,672 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:24:20,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:24:20,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:24:20,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:24:20,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:24:20,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:24:20,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 02:24:20,674 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 02:24:20,674 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 02:24:20,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:24:20,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:24:20,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:24:20,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:24:20,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:24:20,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:24:20,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:24:20,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:24:20,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:24:20,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:24:20,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 02:24:20,677 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 02:24:20,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:24:20,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:24:20,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:24:20,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 02:24:20,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-07-20 02:24:20,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:24:21,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:24:21,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:24:21,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:24:21,017 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:24:21,018 INFO L432 ainManager$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 [2022-07-20 02:24:21,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68927dbe/caafc7d58e524e7ea6729ac380359c42/FLAG56c9ca0a5 [2022-07-20 02:24:21,932 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:24:21,933 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 [2022-07-20 02:24:21,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68927dbe/caafc7d58e524e7ea6729ac380359c42/FLAG56c9ca0a5 [2022-07-20 02:24:22,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68927dbe/caafc7d58e524e7ea6729ac380359c42 [2022-07-20 02:24:22,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:24:22,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:24:22,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:24:22,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:24:22,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:24:22,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:24:22" (1/1) ... [2022-07-20 02:24:22,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da6ce90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:22, skipping insertion in model container [2022-07-20 02:24:22,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:24:22" (1/1) ... [2022-07-20 02:24:22,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:24:22,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:24:24,115 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] [2022-07-20 02:24:24,118 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] [2022-07-20 02:24:24,119 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] [2022-07-20 02:24:24,119 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] [2022-07-20 02:24:24,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:24:24,193 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 02:24:24,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:24:24,532 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] [2022-07-20 02:24:24,533 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] [2022-07-20 02:24:24,534 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] [2022-07-20 02:24:24,534 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] [2022-07-20 02:24:24,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:24:24,562 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:24:24,847 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] [2022-07-20 02:24:24,848 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] [2022-07-20 02:24:24,849 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] [2022-07-20 02:24:24,849 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] [2022-07-20 02:24:24,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:24:25,040 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:24:25,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25 WrapperNode [2022-07-20 02:24:25,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:24:25,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:24:25,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:24:25,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:24:25,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,429 INFO L137 Inliner]: procedures = 406, calls = 2962, calls flagged for inlining = 179, calls inlined = 164, statements flattened = 5999 [2022-07-20 02:24:25,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:24:25,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:24:25,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:24:25,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:24:25,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:24:25,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:24:25,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:24:25,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:24:25,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (1/1) ... [2022-07-20 02:24:25,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:24:25,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:24:25,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 02:24:25,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 02:24:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:24:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:24:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-07-20 02:24:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-07-20 02:24:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2022-07-20 02:24:25,789 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2022-07-20 02:24:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:24:25,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:24:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2022-07-20 02:24:25,789 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2022-07-20 02:24:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2022-07-20 02:24:25,790 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2022-07-20 02:24:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2022-07-20 02:24:25,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2022-07-20 02:24:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:24:25,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:24:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-20 02:24:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-20 02:24:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2022-07-20 02:24:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2022-07-20 02:24:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-07-20 02:24:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-07-20 02:24:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-07-20 02:24:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-07-20 02:24:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:24:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:24:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2022-07-20 02:24:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 02:24:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 02:24:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:24:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:24:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:24:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 02:24:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 02:24:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 02:24:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 02:24:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2022-07-20 02:24:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2022-07-20 02:24:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2022-07-20 02:24:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2022-07-20 02:24:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2022-07-20 02:24:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2022-07-20 02:24:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-07-20 02:24:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-07-20 02:24:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:24:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:24:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-07-20 02:24:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-07-20 02:24:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-20 02:24:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-20 02:24:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2022-07-20 02:24:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2022-07-20 02:24:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:24:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:24:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2022-07-20 02:24:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2022-07-20 02:24:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2022-07-20 02:24:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-07-20 02:24:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-07-20 02:24:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2022-07-20 02:24:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:24:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:24:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:24:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 02:24:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 02:24:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:24:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:24:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:24:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:24:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:24:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:24:25,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:24:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:24:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 02:24:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 02:24:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2022-07-20 02:24:25,800 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2022-07-20 02:24:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 02:24:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-07-20 02:24:25,801 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-07-20 02:24:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2022-07-20 02:24:25,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2022-07-20 02:24:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2022-07-20 02:24:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2022-07-20 02:24:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:24:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:24:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2022-07-20 02:24:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2022-07-20 02:24:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 02:24:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:24:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:24:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2022-07-20 02:24:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2022-07-20 02:24:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 02:24:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-20 02:24:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-20 02:24:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 02:24:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 02:24:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 02:24:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 02:24:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:24:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 02:24:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:24:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:24:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:24:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-20 02:24:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-20 02:24:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:24:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:24:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2022-07-20 02:24:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2022-07-20 02:24:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-07-20 02:24:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-07-20 02:24:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-07-20 02:24:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-07-20 02:24:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2022-07-20 02:24:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2022-07-20 02:24:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 02:24:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 02:24:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:24:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:24:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2022-07-20 02:24:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2022-07-20 02:24:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:24:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 02:24:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 02:24:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:24:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2022-07-20 02:24:25,809 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2022-07-20 02:24:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2022-07-20 02:24:25,809 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2022-07-20 02:24:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 02:24:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 02:24:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 02:24:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2022-07-20 02:24:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2022-07-20 02:24:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 02:24:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2022-07-20 02:24:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2022-07-20 02:24:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:24:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2022-07-20 02:24:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2022-07-20 02:24:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 02:24:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 02:24:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 02:24:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 02:24:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:24:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:24:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:24:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:24:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-20 02:24:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-20 02:24:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2022-07-20 02:24:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2022-07-20 02:24:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2022-07-20 02:24:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2022-07-20 02:24:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-07-20 02:24:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-07-20 02:24:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-07-20 02:24:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-07-20 02:24:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2022-07-20 02:24:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2022-07-20 02:24:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 02:24:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 02:24:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 02:24:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 02:24:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2022-07-20 02:24:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2022-07-20 02:24:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2022-07-20 02:24:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2022-07-20 02:24:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-20 02:24:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-20 02:24:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 02:24:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 02:24:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 02:24:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 02:24:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:24:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:24:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2022-07-20 02:24:25,816 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 [2022-07-20 02:24:25,817 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 [2022-07-20 02:24:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2022-07-20 02:24:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2022-07-20 02:24:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2022-07-20 02:24:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2022-07-20 02:24:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:24:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:24:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:24:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:24:26,628 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:24:26,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:24:26,841 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:25:17,760 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:25:17,800 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:25:17,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:25:17,816 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 02:25:17,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:25:17 BoogieIcfgContainer [2022-07-20 02:25:17,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:25:17,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:25:17,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:25:17,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:25:17,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:24:22" (1/3) ... [2022-07-20 02:25:17,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9a26af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:25:17, skipping insertion in model container [2022-07-20 02:25:17,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:24:25" (2/3) ... [2022-07-20 02:25:17,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9a26af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:25:17, skipping insertion in model container [2022-07-20 02:25:17,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:25:17" (3/3) ... [2022-07-20 02:25:17,827 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-07-20 02:25:17,839 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:25:17,840 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:25:17,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:25:17,915 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@2b096705, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@484aadd5 [2022-07-20 02:25:17,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:25:17,926 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) [2022-07-20 02:25:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-20 02:25:17,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:17,951 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] [2022-07-20 02:25:17,952 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)] === [2022-07-20 02:25:17,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:17,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2048722027, now seen corresponding path program 1 times [2022-07-20 02:25:17,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:17,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217059496] [2022-07-20 02:25:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:17,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:17,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:17,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 02:25:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:19,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:25:19,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-07-20 02:25:19,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:19,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:19,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217059496] [2022-07-20 02:25:19,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217059496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:19,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:19,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:25:19,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141228082] [2022-07-20 02:25:19,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:19,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:25:19,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:19,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:25:19,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:25:19,711 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) [2022-07-20 02:25:20,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:20,311 INFO L93 Difference]: Finished difference Result 4903 states and 7330 transitions. [2022-07-20 02:25:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:25:20,314 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 [2022-07-20 02:25:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:20,352 INFO L225 Difference]: With dead ends: 4903 [2022-07-20 02:25:20,353 INFO L226 Difference]: Without dead ends: 3236 [2022-07-20 02:25:20,371 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 [2022-07-20 02:25:20,377 INFO L413 NwaCegarLoop]: 2745 mSDtfsCounter, 2235 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 02:25:20,379 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] [2022-07-20 02:25:20,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2022-07-20 02:25:20,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3232. [2022-07-20 02:25:20,601 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) [2022-07-20 02:25:20,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4592 transitions. [2022-07-20 02:25:20,630 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4592 transitions. Word has length 228 [2022-07-20 02:25:20,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:20,635 INFO L495 AbstractCegarLoop]: Abstraction has 3232 states and 4592 transitions. [2022-07-20 02:25:20,635 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) [2022-07-20 02:25:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4592 transitions. [2022-07-20 02:25:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-20 02:25:20,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:20,646 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] [2022-07-20 02:25:20,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 02:25:20,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:20,864 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)] === [2022-07-20 02:25:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:20,865 INFO L85 PathProgramCache]: Analyzing trace with hash 775454786, now seen corresponding path program 1 times [2022-07-20 02:25:20,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:20,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274214125] [2022-07-20 02:25:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:20,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:20,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:20,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 02:25:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:22,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 2035 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:25:22,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:22,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-07-20 02:25:22,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:22,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:22,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274214125] [2022-07-20 02:25:22,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274214125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:22,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:22,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:25:22,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73561043] [2022-07-20 02:25:22,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:22,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:25:22,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:22,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:25:22,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:25:22,494 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) [2022-07-20 02:25:23,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:23,344 INFO L93 Difference]: Finished difference Result 7614 states and 10818 transitions. [2022-07-20 02:25:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:25:23,344 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 [2022-07-20 02:25:23,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:23,372 INFO L225 Difference]: With dead ends: 7614 [2022-07-20 02:25:23,372 INFO L226 Difference]: Without dead ends: 4423 [2022-07-20 02:25:23,384 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 [2022-07-20 02:25:23,385 INFO L413 NwaCegarLoop]: 2821 mSDtfsCounter, 1987 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:23,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5121 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 02:25:23,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-07-20 02:25:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4396. [2022-07-20 02:25:23,522 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) [2022-07-20 02:25:23,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 6240 transitions. [2022-07-20 02:25:23,555 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 6240 transitions. Word has length 243 [2022-07-20 02:25:23,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:23,557 INFO L495 AbstractCegarLoop]: Abstraction has 4396 states and 6240 transitions. [2022-07-20 02:25:23,557 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) [2022-07-20 02:25:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 6240 transitions. [2022-07-20 02:25:23,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-20 02:25:23,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:23,566 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] [2022-07-20 02:25:23,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:23,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:23,780 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)] === [2022-07-20 02:25:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:23,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1690325682, now seen corresponding path program 1 times [2022-07-20 02:25:23,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:23,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324218429] [2022-07-20 02:25:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:23,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:23,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:23,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:23,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 02:25:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:25,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:25:25,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-07-20 02:25:25,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:25,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:25,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324218429] [2022-07-20 02:25:25,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324218429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:25,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:25,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:25:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555938977] [2022-07-20 02:25:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:25,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:25:25,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:25:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:25:25,325 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) [2022-07-20 02:25:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:25,776 INFO L93 Difference]: Finished difference Result 10317 states and 14649 transitions. [2022-07-20 02:25:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:25:25,777 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 [2022-07-20 02:25:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:25,827 INFO L225 Difference]: With dead ends: 10317 [2022-07-20 02:25:25,828 INFO L226 Difference]: Without dead ends: 7274 [2022-07-20 02:25:25,844 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 [2022-07-20 02:25:25,849 INFO L413 NwaCegarLoop]: 4584 mSDtfsCounter, 2196 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 02:25:25,850 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] [2022-07-20 02:25:25,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2022-07-20 02:25:26,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7270. [2022-07-20 02:25:26,059 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) [2022-07-20 02:25:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7270 states to 7270 states and 10320 transitions. [2022-07-20 02:25:26,236 INFO L78 Accepts]: Start accepts. Automaton has 7270 states and 10320 transitions. Word has length 287 [2022-07-20 02:25:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:26,237 INFO L495 AbstractCegarLoop]: Abstraction has 7270 states and 10320 transitions. [2022-07-20 02:25:26,237 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) [2022-07-20 02:25:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7270 states and 10320 transitions. [2022-07-20 02:25:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-20 02:25:26,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:26,247 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] [2022-07-20 02:25:26,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:26,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:26,468 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)] === [2022-07-20 02:25:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash -681413580, now seen corresponding path program 1 times [2022-07-20 02:25:26,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:26,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322423155] [2022-07-20 02:25:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:26,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:26,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:26,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 02:25:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:27,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:27,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:29,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-20 02:25:29,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:29,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:29,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322423155] [2022-07-20 02:25:29,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322423155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:29,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:29,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:25:29,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364941634] [2022-07-20 02:25:29,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:29,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:29,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:29,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:29,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:25:29,911 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) [2022-07-20 02:25:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:30,225 INFO L93 Difference]: Finished difference Result 7276 states and 10325 transitions. [2022-07-20 02:25:30,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:25:30,226 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 [2022-07-20 02:25:30,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:30,263 INFO L225 Difference]: With dead ends: 7276 [2022-07-20 02:25:30,263 INFO L226 Difference]: Without dead ends: 7274 [2022-07-20 02:25:30,269 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 [2022-07-20 02:25:30,269 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 [2022-07-20 02:25:30,270 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] [2022-07-20 02:25:30,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2022-07-20 02:25:30,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7274. [2022-07-20 02:25:30,508 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) [2022-07-20 02:25:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7274 states to 7274 states and 10323 transitions. [2022-07-20 02:25:30,537 INFO L78 Accepts]: Start accepts. Automaton has 7274 states and 10323 transitions. Word has length 287 [2022-07-20 02:25:30,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:30,541 INFO L495 AbstractCegarLoop]: Abstraction has 7274 states and 10323 transitions. [2022-07-20 02:25:30,541 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) [2022-07-20 02:25:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7274 states and 10323 transitions. [2022-07-20 02:25:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-20 02:25:30,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:30,550 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] [2022-07-20 02:25:30,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:30,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:30,775 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)] === [2022-07-20 02:25:30,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2099691453, now seen corresponding path program 1 times [2022-07-20 02:25:30,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:30,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365319808] [2022-07-20 02:25:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:30,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:30,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:30,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:30,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 02:25:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:32,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:32,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-20 02:25:34,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-20 02:25:34,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:34,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365319808] [2022-07-20 02:25:34,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365319808] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:34,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:34,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:34,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866273758] [2022-07-20 02:25:34,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:34,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:34,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:34,905 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) [2022-07-20 02:25:35,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:35,279 INFO L93 Difference]: Finished difference Result 7280 states and 10328 transitions. [2022-07-20 02:25:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:35,279 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 [2022-07-20 02:25:35,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:35,340 INFO L225 Difference]: With dead ends: 7280 [2022-07-20 02:25:35,340 INFO L226 Difference]: Without dead ends: 7278 [2022-07-20 02:25:35,346 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 [2022-07-20 02:25:35,347 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 [2022-07-20 02:25:35,347 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] [2022-07-20 02:25:35,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2022-07-20 02:25:35,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 7278. [2022-07-20 02:25:35,588 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) [2022-07-20 02:25:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 10326 transitions. [2022-07-20 02:25:35,617 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 10326 transitions. Word has length 292 [2022-07-20 02:25:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:35,618 INFO L495 AbstractCegarLoop]: Abstraction has 7278 states and 10326 transitions. [2022-07-20 02:25:35,618 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) [2022-07-20 02:25:35,618 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 10326 transitions. [2022-07-20 02:25:35,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-20 02:25:35,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:35,628 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] [2022-07-20 02:25:35,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:35,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:35,847 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)] === [2022-07-20 02:25:35,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:35,848 INFO L85 PathProgramCache]: Analyzing trace with hash 705078606, now seen corresponding path program 1 times [2022-07-20 02:25:35,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:35,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340087872] [2022-07-20 02:25:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:35,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:35,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:35,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 02:25:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:37,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:25:37,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-07-20 02:25:37,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:37,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:37,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340087872] [2022-07-20 02:25:37,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340087872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:37,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:37,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:25:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160646555] [2022-07-20 02:25:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:37,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:25:37,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:25:37,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:25:37,174 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) [2022-07-20 02:25:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:37,719 INFO L93 Difference]: Finished difference Result 16109 states and 22859 transitions. [2022-07-20 02:25:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:25:37,720 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 [2022-07-20 02:25:37,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:37,762 INFO L225 Difference]: With dead ends: 16109 [2022-07-20 02:25:37,763 INFO L226 Difference]: Without dead ends: 10184 [2022-07-20 02:25:37,787 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 [2022-07-20 02:25:37,788 INFO L413 NwaCegarLoop]: 4596 mSDtfsCounter, 2229 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 02:25:37,789 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] [2022-07-20 02:25:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10184 states. [2022-07-20 02:25:38,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10184 to 10154. [2022-07-20 02:25:38,071 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) [2022-07-20 02:25:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 14408 transitions. [2022-07-20 02:25:38,111 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 14408 transitions. Word has length 306 [2022-07-20 02:25:38,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:38,113 INFO L495 AbstractCegarLoop]: Abstraction has 10154 states and 14408 transitions. [2022-07-20 02:25:38,113 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) [2022-07-20 02:25:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 14408 transitions. [2022-07-20 02:25:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-20 02:25:38,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:38,122 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] [2022-07-20 02:25:38,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:38,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:38,336 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)] === [2022-07-20 02:25:38,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:38,336 INFO L85 PathProgramCache]: Analyzing trace with hash -948454060, now seen corresponding path program 1 times [2022-07-20 02:25:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:38,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202336251] [2022-07-20 02:25:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:38,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:38,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:38,339 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:38,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 02:25:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:39,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:39,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-07-20 02:25:41,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-07-20 02:25:42,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:42,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202336251] [2022-07-20 02:25:42,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202336251] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:42,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:42,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:42,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380763160] [2022-07-20 02:25:42,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:42,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:42,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:42,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:42,638 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) [2022-07-20 02:25:43,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:43,043 INFO L93 Difference]: Finished difference Result 10160 states and 14413 transitions. [2022-07-20 02:25:43,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:43,044 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 [2022-07-20 02:25:43,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:43,087 INFO L225 Difference]: With dead ends: 10160 [2022-07-20 02:25:43,088 INFO L226 Difference]: Without dead ends: 10158 [2022-07-20 02:25:43,094 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 [2022-07-20 02:25:43,095 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 [2022-07-20 02:25:43,095 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] [2022-07-20 02:25:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2022-07-20 02:25:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 10158. [2022-07-20 02:25:43,458 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) [2022-07-20 02:25:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10158 states to 10158 states and 14411 transitions. [2022-07-20 02:25:43,492 INFO L78 Accepts]: Start accepts. Automaton has 10158 states and 14411 transitions. Word has length 297 [2022-07-20 02:25:43,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:43,493 INFO L495 AbstractCegarLoop]: Abstraction has 10158 states and 14411 transitions. [2022-07-20 02:25:43,493 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) [2022-07-20 02:25:43,493 INFO L276 IsEmpty]: Start isEmpty. Operand 10158 states and 14411 transitions. [2022-07-20 02:25:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-20 02:25:43,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:43,503 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] [2022-07-20 02:25:43,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:43,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:43,720 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)] === [2022-07-20 02:25:43,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash 545184419, now seen corresponding path program 1 times [2022-07-20 02:25:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:43,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618889607] [2022-07-20 02:25:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:43,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:43,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:43,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:43,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 02:25:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:45,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:45,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-07-20 02:25:47,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-07-20 02:25:48,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:48,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618889607] [2022-07-20 02:25:48,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618889607] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:48,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:48,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:48,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848391852] [2022-07-20 02:25:48,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:48,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:48,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:48,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:48,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:48,194 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) [2022-07-20 02:25:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:48,627 INFO L93 Difference]: Finished difference Result 10164 states and 14416 transitions. [2022-07-20 02:25:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:48,628 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 [2022-07-20 02:25:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:48,670 INFO L225 Difference]: With dead ends: 10164 [2022-07-20 02:25:48,670 INFO L226 Difference]: Without dead ends: 10162 [2022-07-20 02:25:48,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:25:48,679 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, 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:48,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2312 Valid, 7145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:25:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10162 states. [2022-07-20 02:25:49,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10162 to 10162. [2022-07-20 02:25:49,052 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) [2022-07-20 02:25:49,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10162 states to 10162 states and 14414 transitions. [2022-07-20 02:25:49,089 INFO L78 Accepts]: Start accepts. Automaton has 10162 states and 14414 transitions. Word has length 302 [2022-07-20 02:25:49,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:49,090 INFO L495 AbstractCegarLoop]: Abstraction has 10162 states and 14414 transitions. [2022-07-20 02:25:49,090 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) [2022-07-20 02:25:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 10162 states and 14414 transitions. [2022-07-20 02:25:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-07-20 02:25:49,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:49,100 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] [2022-07-20 02:25:49,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:49,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:49,328 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)] === [2022-07-20 02:25:49,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1464716916, now seen corresponding path program 1 times [2022-07-20 02:25:49,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:49,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849180727] [2022-07-20 02:25:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:49,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:49,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:49,333 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:49,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 02:25:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:50,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:50,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-20 02:25:52,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-20 02:25:53,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:53,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849180727] [2022-07-20 02:25:53,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849180727] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:53,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:53,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:53,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905857720] [2022-07-20 02:25:53,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:53,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:53,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:53,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:53,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:53,723 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) [2022-07-20 02:25:54,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:54,146 INFO L93 Difference]: Finished difference Result 10168 states and 14419 transitions. [2022-07-20 02:25:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:54,147 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 [2022-07-20 02:25:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:54,183 INFO L225 Difference]: With dead ends: 10168 [2022-07-20 02:25:54,183 INFO L226 Difference]: Without dead ends: 10166 [2022-07-20 02:25:54,190 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 [2022-07-20 02:25:54,192 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, 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 [2022-07-20 02:25:54,192 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] [2022-07-20 02:25:54,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10166 states. [2022-07-20 02:25:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10166 to 10166. [2022-07-20 02:25:54,502 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) [2022-07-20 02:25:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10166 states to 10166 states and 14417 transitions. [2022-07-20 02:25:54,536 INFO L78 Accepts]: Start accepts. Automaton has 10166 states and 14417 transitions. Word has length 307 [2022-07-20 02:25:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:54,536 INFO L495 AbstractCegarLoop]: Abstraction has 10166 states and 14417 transitions. [2022-07-20 02:25:54,537 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) [2022-07-20 02:25:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10166 states and 14417 transitions. [2022-07-20 02:25:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-07-20 02:25:54,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:54,545 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] [2022-07-20 02:25:54,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:54,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:54,772 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)] === [2022-07-20 02:25:54,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:54,772 INFO L85 PathProgramCache]: Analyzing trace with hash 381872330, now seen corresponding path program 1 times [2022-07-20 02:25:54,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:54,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329623331] [2022-07-20 02:25:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:54,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:54,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 02:25:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:56,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:25:56,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-07-20 02:25:56,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:56,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:56,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329623331] [2022-07-20 02:25:56,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329623331] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:56,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:56,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:25:56,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503705154] [2022-07-20 02:25:56,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:56,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:25:56,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:56,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:25:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:25:56,646 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) [2022-07-20 02:25:57,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:57,340 INFO L93 Difference]: Finished difference Result 27356 states and 38760 transitions. [2022-07-20 02:25:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:25:57,340 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 [2022-07-20 02:25:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:57,413 INFO L225 Difference]: With dead ends: 27356 [2022-07-20 02:25:57,414 INFO L226 Difference]: Without dead ends: 17231 [2022-07-20 02:25:57,460 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 [2022-07-20 02:25:57,461 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 [2022-07-20 02:25:57,462 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] [2022-07-20 02:25:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17231 states. [2022-07-20 02:25:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17231 to 17172. [2022-07-20 02:25:58,078 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) [2022-07-20 02:25:58,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17172 states to 17172 states and 24263 transitions. [2022-07-20 02:25:58,146 INFO L78 Accepts]: Start accepts. Automaton has 17172 states and 24263 transitions. Word has length 441 [2022-07-20 02:25:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:58,147 INFO L495 AbstractCegarLoop]: Abstraction has 17172 states and 24263 transitions. [2022-07-20 02:25:58,147 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) [2022-07-20 02:25:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 17172 states and 24263 transitions. [2022-07-20 02:25:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-07-20 02:25:58,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:58,157 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] [2022-07-20 02:25:58,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:58,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:58,376 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)] === [2022-07-20 02:25:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1342567629, now seen corresponding path program 1 times [2022-07-20 02:25:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:58,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257675954] [2022-07-20 02:25:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:58,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:58,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:58,381 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:58,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 02:26:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:00,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:26:00,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-07-20 02:26:00,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:26:00,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:00,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257675954] [2022-07-20 02:26:00,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257675954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:26:00,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:26:00,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:26:00,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568233132] [2022-07-20 02:26:00,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:00,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:26:00,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:00,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:26:00,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:26:00,396 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) [2022-07-20 02:26:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:01,280 INFO L93 Difference]: Finished difference Result 42119 states and 59393 transitions. [2022-07-20 02:26:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:26:01,281 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 [2022-07-20 02:26:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:01,382 INFO L225 Difference]: With dead ends: 42119 [2022-07-20 02:26:01,383 INFO L226 Difference]: Without dead ends: 24988 [2022-07-20 02:26:01,436 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 [2022-07-20 02:26:01,437 INFO L413 NwaCegarLoop]: 2790 mSDtfsCounter, 1936 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 02:26:01,437 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] [2022-07-20 02:26:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24988 states. [2022-07-20 02:26:02,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24988 to 24935. [2022-07-20 02:26:02,322 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) [2022-07-20 02:26:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24935 states to 24935 states and 35063 transitions. [2022-07-20 02:26:02,394 INFO L78 Accepts]: Start accepts. Automaton has 24935 states and 35063 transitions. Word has length 435 [2022-07-20 02:26:02,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:02,395 INFO L495 AbstractCegarLoop]: Abstraction has 24935 states and 35063 transitions. [2022-07-20 02:26:02,395 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) [2022-07-20 02:26:02,395 INFO L276 IsEmpty]: Start isEmpty. Operand 24935 states and 35063 transitions. [2022-07-20 02:26:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-20 02:26:02,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:02,400 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] [2022-07-20 02:26:02,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 02:26:02,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:02,620 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)] === [2022-07-20 02:26:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1067494659, now seen corresponding path program 1 times [2022-07-20 02:26:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:02,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942344196] [2022-07-20 02:26:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:02,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:02,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:02,623 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:02,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 02:26:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:03,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:26:03,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2022-07-20 02:26:06,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2022-07-20 02:26:06,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:06,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942344196] [2022-07-20 02:26:06,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942344196] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:06,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:06,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427121890] [2022-07-20 02:26:06,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:06,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:06,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:06,917 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) [2022-07-20 02:26:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:07,646 INFO L93 Difference]: Finished difference Result 24941 states and 35068 transitions. [2022-07-20 02:26:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:07,646 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 [2022-07-20 02:26:07,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:07,721 INFO L225 Difference]: With dead ends: 24941 [2022-07-20 02:26:07,722 INFO L226 Difference]: Without dead ends: 24939 [2022-07-20 02:26:07,735 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 [2022-07-20 02:26:07,736 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 [2022-07-20 02:26:07,736 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] [2022-07-20 02:26:07,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24939 states. [2022-07-20 02:26:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24939 to 24939. [2022-07-20 02:26:08,529 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) [2022-07-20 02:26:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24939 states to 24939 states and 35066 transitions. [2022-07-20 02:26:08,596 INFO L78 Accepts]: Start accepts. Automaton has 24939 states and 35066 transitions. Word has length 312 [2022-07-20 02:26:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:08,597 INFO L495 AbstractCegarLoop]: Abstraction has 24939 states and 35066 transitions. [2022-07-20 02:26:08,597 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) [2022-07-20 02:26:08,597 INFO L276 IsEmpty]: Start isEmpty. Operand 24939 states and 35066 transitions. [2022-07-20 02:26:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-20 02:26:08,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:08,603 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] [2022-07-20 02:26:08,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 02:26:08,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:08,824 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)] === [2022-07-20 02:26:08,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:08,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2104842348, now seen corresponding path program 1 times [2022-07-20 02:26:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:08,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7775873] [2022-07-20 02:26:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:08,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:08,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:08,827 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:08,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 02:26:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:10,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:26:10,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-07-20 02:26:12,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-07-20 02:26:13,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:13,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7775873] [2022-07-20 02:26:13,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7775873] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:13,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:13,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:13,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471969016] [2022-07-20 02:26:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:13,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:13,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:13,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:13,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:13,084 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) [2022-07-20 02:26:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:13,859 INFO L93 Difference]: Finished difference Result 24945 states and 35071 transitions. [2022-07-20 02:26:13,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:13,860 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 [2022-07-20 02:26:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:13,934 INFO L225 Difference]: With dead ends: 24945 [2022-07-20 02:26:13,934 INFO L226 Difference]: Without dead ends: 24943 [2022-07-20 02:26:13,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:26:13,948 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 [2022-07-20 02:26:13,949 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] [2022-07-20 02:26:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24943 states. [2022-07-20 02:26:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24943 to 24943. [2022-07-20 02:26:14,721 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) [2022-07-20 02:26:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24943 states to 24943 states and 35069 transitions. [2022-07-20 02:26:14,781 INFO L78 Accepts]: Start accepts. Automaton has 24943 states and 35069 transitions. Word has length 317 [2022-07-20 02:26:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:14,782 INFO L495 AbstractCegarLoop]: Abstraction has 24943 states and 35069 transitions. [2022-07-20 02:26:14,782 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) [2022-07-20 02:26:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 24943 states and 35069 transitions. [2022-07-20 02:26:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-20 02:26:14,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:14,788 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] [2022-07-20 02:26:14,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-20 02:26:15,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:15,007 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)] === [2022-07-20 02:26:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:15,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1012447075, now seen corresponding path program 1 times [2022-07-20 02:26:15,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:15,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015429572] [2022-07-20 02:26:15,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:15,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:15,011 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:15,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 02:26:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:16,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:26:16,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-07-20 02:26:18,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-07-20 02:26:19,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:19,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015429572] [2022-07-20 02:26:19,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015429572] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:19,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:19,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:19,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548552155] [2022-07-20 02:26:19,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:19,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:19,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:19,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:19,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:19,279 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) [2022-07-20 02:26:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:19,994 INFO L93 Difference]: Finished difference Result 25103 states and 35184 transitions. [2022-07-20 02:26:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:19,995 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 [2022-07-20 02:26:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:20,070 INFO L225 Difference]: With dead ends: 25103 [2022-07-20 02:26:20,071 INFO L226 Difference]: Without dead ends: 25101 [2022-07-20 02:26:20,084 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 [2022-07-20 02:26:20,085 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 [2022-07-20 02:26:20,085 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] [2022-07-20 02:26:20,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25101 states. [2022-07-20 02:26:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25101 to 25101. [2022-07-20 02:26:20,938 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) [2022-07-20 02:26:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25101 states to 25101 states and 35182 transitions. [2022-07-20 02:26:21,025 INFO L78 Accepts]: Start accepts. Automaton has 25101 states and 35182 transitions. Word has length 322 [2022-07-20 02:26:21,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:21,025 INFO L495 AbstractCegarLoop]: Abstraction has 25101 states and 35182 transitions. [2022-07-20 02:26:21,026 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) [2022-07-20 02:26:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25101 states and 35182 transitions. [2022-07-20 02:26:21,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-20 02:26:21,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:21,031 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] [2022-07-20 02:26:21,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-20 02:26:21,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:21,232 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)] === [2022-07-20 02:26:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:21,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1834240180, now seen corresponding path program 1 times [2022-07-20 02:26:21,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:21,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166260722] [2022-07-20 02:26:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:21,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:21,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:21,237 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:21,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 02:26:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:22,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:26:22,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2022-07-20 02:26:24,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2022-07-20 02:26:25,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166260722] [2022-07-20 02:26:25,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166260722] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:25,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:25,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:25,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696436151] [2022-07-20 02:26:25,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:25,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:25,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:25,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:25,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:25,974 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) [2022-07-20 02:26:26,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:26,740 INFO L93 Difference]: Finished difference Result 25107 states and 35187 transitions. [2022-07-20 02:26:26,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:26,740 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 [2022-07-20 02:26:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:26,808 INFO L225 Difference]: With dead ends: 25107 [2022-07-20 02:26:26,808 INFO L226 Difference]: Without dead ends: 25105 [2022-07-20 02:26:26,816 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 [2022-07-20 02:26:26,817 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 [2022-07-20 02:26:26,817 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] [2022-07-20 02:26:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25105 states. [2022-07-20 02:26:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25105 to 25105. [2022-07-20 02:26:27,526 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) [2022-07-20 02:26:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25105 states to 25105 states and 35185 transitions. [2022-07-20 02:26:27,592 INFO L78 Accepts]: Start accepts. Automaton has 25105 states and 35185 transitions. Word has length 327 [2022-07-20 02:26:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:27,593 INFO L495 AbstractCegarLoop]: Abstraction has 25105 states and 35185 transitions. [2022-07-20 02:26:27,593 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) [2022-07-20 02:26:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 25105 states and 35185 transitions. [2022-07-20 02:26:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-20 02:26:27,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:27,600 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] [2022-07-20 02:26:27,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 02:26:27,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:27,820 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)] === [2022-07-20 02:26:27,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:27,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1707017789, now seen corresponding path program 1 times [2022-07-20 02:26:27,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958284754] [2022-07-20 02:26:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:27,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:27,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:27,824 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:27,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 02:26:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:28,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:26:28,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-07-20 02:26:31,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-07-20 02:26:32,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:32,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958284754] [2022-07-20 02:26:32,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958284754] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:32,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:32,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:32,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373668274] [2022-07-20 02:26:32,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:32,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:32,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:32,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:32,048 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) [2022-07-20 02:26:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:32,949 INFO L93 Difference]: Finished difference Result 25111 states and 35190 transitions. [2022-07-20 02:26:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:32,950 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 [2022-07-20 02:26:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:33,024 INFO L225 Difference]: With dead ends: 25111 [2022-07-20 02:26:33,024 INFO L226 Difference]: Without dead ends: 25109 [2022-07-20 02:26:33,036 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 [2022-07-20 02:26:33,037 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 [2022-07-20 02:26:33,037 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] [2022-07-20 02:26:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25109 states. [2022-07-20 02:26:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25109 to 25109. [2022-07-20 02:26:33,949 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) [2022-07-20 02:26:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25109 states to 25109 states and 35188 transitions. [2022-07-20 02:26:34,013 INFO L78 Accepts]: Start accepts. Automaton has 25109 states and 35188 transitions. Word has length 332 [2022-07-20 02:26:34,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:34,013 INFO L495 AbstractCegarLoop]: Abstraction has 25109 states and 35188 transitions. [2022-07-20 02:26:34,014 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) [2022-07-20 02:26:34,014 INFO L276 IsEmpty]: Start isEmpty. Operand 25109 states and 35188 transitions. [2022-07-20 02:26:34,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-07-20 02:26:34,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:34,022 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] [2022-07-20 02:26:34,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-20 02:26:34,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:34,244 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)] === [2022-07-20 02:26:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:34,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1323935749, now seen corresponding path program 1 times [2022-07-20 02:26:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:34,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316281032] [2022-07-20 02:26:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:34,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:34,249 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:34,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 02:26:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:35,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 02:26:35,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 321 proven. 3 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2022-07-20 02:26:36,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 1959 trivial. 0 not checked. [2022-07-20 02:26:38,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:38,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316281032] [2022-07-20 02:26:38,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316281032] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:26:38,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:26:38,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-20 02:26:38,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753679917] [2022-07-20 02:26:38,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:26:38,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-20 02:26:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-20 02:26:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-20 02:26:38,185 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) [2022-07-20 02:27:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:03,977 INFO L93 Difference]: Finished difference Result 65021 states and 91035 transitions. [2022-07-20 02:27:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-20 02:27:03,978 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 [2022-07-20 02:27:03,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:04,140 INFO L225 Difference]: With dead ends: 65021 [2022-07-20 02:27:04,140 INFO L226 Difference]: Without dead ends: 40939 [2022-07-20 02:27:04,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-20 02:27:04,206 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 8011 mSDsluCounter, 70255 mSDsCounter, 0 mSdLazyCounter, 5261 mSolverCounterSat, 1242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s 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, 22.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:27:04,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8200 Valid, 74808 Invalid, 6503 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1242 Valid, 5261 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2022-07-20 02:27:04,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40939 states. [2022-07-20 02:27:05,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40939 to 33016. [2022-07-20 02:27:05,895 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) [2022-07-20 02:27:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33016 states to 33016 states and 46230 transitions. [2022-07-20 02:27:06,008 INFO L78 Accepts]: Start accepts. Automaton has 33016 states and 46230 transitions. Word has length 372 [2022-07-20 02:27:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:06,008 INFO L495 AbstractCegarLoop]: Abstraction has 33016 states and 46230 transitions. [2022-07-20 02:27:06,008 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) [2022-07-20 02:27:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 33016 states and 46230 transitions. [2022-07-20 02:27:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-07-20 02:27:06,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:06,015 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] [2022-07-20 02:27:06,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 02:27:06,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:27:06,216 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)] === [2022-07-20 02:27:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1001344556, now seen corresponding path program 1 times [2022-07-20 02:27:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:27:06,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292984989] [2022-07-20 02:27:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:06,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:27:06,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:27:06,220 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:27:06,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 02:27:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:07,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:27:07,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:27:10,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1847 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-07-20 02:27:10,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:27:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1847 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-07-20 02:27:11,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:27:11,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292984989] [2022-07-20 02:27:11,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292984989] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:27:11,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:27:11,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:27:11,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356544090] [2022-07-20 02:27:11,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:11,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:27:11,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:27:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:27:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:27:11,211 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) [2022-07-20 02:27:12,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:12,407 INFO L93 Difference]: Finished difference Result 33022 states and 46235 transitions. [2022-07-20 02:27:12,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:27:12,408 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 [2022-07-20 02:27:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:12,504 INFO L225 Difference]: With dead ends: 33022 [2022-07-20 02:27:12,504 INFO L226 Difference]: Without dead ends: 33018 [2022-07-20 02:27:12,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:27:12,523 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 [2022-07-20 02:27:12,523 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] [2022-07-20 02:27:12,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33018 states. [2022-07-20 02:27:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33018 to 33018. [2022-07-20 02:27:13,918 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) [2022-07-20 02:27:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33018 states to 33018 states and 46231 transitions. [2022-07-20 02:27:14,012 INFO L78 Accepts]: Start accepts. Automaton has 33018 states and 46231 transitions. Word has length 337 [2022-07-20 02:27:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:14,012 INFO L495 AbstractCegarLoop]: Abstraction has 33018 states and 46231 transitions. [2022-07-20 02:27:14,012 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) [2022-07-20 02:27:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 33018 states and 46231 transitions. [2022-07-20 02:27:14,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-07-20 02:27:14,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:14,018 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] [2022-07-20 02:27:14,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-20 02:27:14,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:27:14,219 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)] === [2022-07-20 02:27:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash -263964520, now seen corresponding path program 1 times [2022-07-20 02:27:14,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:27:14,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332180412] [2022-07-20 02:27:14,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:14,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:27:14,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:27:14,223 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:27:14,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-20 02:27:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:15,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:27:15,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:27:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-07-20 02:27:16,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:27:16,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:27:16,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332180412] [2022-07-20 02:27:16,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332180412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:27:16,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:27:16,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:27:16,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499716418] [2022-07-20 02:27:16,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:16,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:27:16,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:27:16,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:27:16,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:27:16,027 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) [2022-07-20 02:27:18,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:18,242 INFO L93 Difference]: Finished difference Result 96539 states and 135203 transitions. [2022-07-20 02:27:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:27:18,243 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 [2022-07-20 02:27:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:18,572 INFO L225 Difference]: With dead ends: 96539 [2022-07-20 02:27:18,572 INFO L226 Difference]: Without dead ends: 63491 [2022-07-20 02:27:18,640 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 [2022-07-20 02:27:18,640 INFO L413 NwaCegarLoop]: 3488 mSDtfsCounter, 2302 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-20 02:27:18,641 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] [2022-07-20 02:27:18,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63491 states. [2022-07-20 02:27:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63491 to 63410. [2022-07-20 02:27:21,214 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) [2022-07-20 02:27:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63410 states to 63410 states and 88760 transitions. [2022-07-20 02:27:21,421 INFO L78 Accepts]: Start accepts. Automaton has 63410 states and 88760 transitions. Word has length 463 [2022-07-20 02:27:21,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:21,422 INFO L495 AbstractCegarLoop]: Abstraction has 63410 states and 88760 transitions. [2022-07-20 02:27:21,422 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) [2022-07-20 02:27:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 63410 states and 88760 transitions. [2022-07-20 02:27:21,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-20 02:27:21,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:21,430 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] [2022-07-20 02:27:21,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-20 02:27:21,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:27:21,652 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)] === [2022-07-20 02:27:21,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1535937501, now seen corresponding path program 1 times [2022-07-20 02:27:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:27:21,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939607723] [2022-07-20 02:27:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:21,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:27:21,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:27:21,655 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:27:21,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-20 02:27:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:22,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:27:22,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:27:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-07-20 02:27:25,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:27:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-07-20 02:27:26,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:27:26,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939607723] [2022-07-20 02:27:26,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939607723] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:27:26,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:27:26,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:27:26,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127639980] [2022-07-20 02:27:26,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:26,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:27:26,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:27:26,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:27:26,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:27:26,564 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) [2022-07-20 02:27:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:28,966 INFO L93 Difference]: Finished difference Result 63410 states and 88760 transitions. [2022-07-20 02:27:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:27:28,967 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 [2022-07-20 02:27:28,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:29,152 INFO L225 Difference]: With dead ends: 63410 [2022-07-20 02:27:29,152 INFO L226 Difference]: Without dead ends: 62912 [2022-07-20 02:27:29,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:27:29,175 INFO L413 NwaCegarLoop]: 2386 mSDtfsCounter, 2300 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:27:29,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 7142 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:27:29,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62912 states. [2022-07-20 02:27:31,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62912 to 47565. [2022-07-20 02:27:31,257 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) [2022-07-20 02:27:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47565 states to 47565 states and 66548 transitions. [2022-07-20 02:27:31,408 INFO L78 Accepts]: Start accepts. Automaton has 47565 states and 66548 transitions. Word has length 342 [2022-07-20 02:27:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:31,408 INFO L495 AbstractCegarLoop]: Abstraction has 47565 states and 66548 transitions. [2022-07-20 02:27:31,408 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) [2022-07-20 02:27:31,408 INFO L276 IsEmpty]: Start isEmpty. Operand 47565 states and 66548 transitions. [2022-07-20 02:27:31,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-20 02:27:31,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:31,417 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] [2022-07-20 02:27:31,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-20 02:27:31,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:27:31,619 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)] === [2022-07-20 02:27:31,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:31,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1473888471, now seen corresponding path program 1 times [2022-07-20 02:27:31,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:27:31,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681800008] [2022-07-20 02:27:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:31,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:27:31,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:27:31,623 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:27:31,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-20 02:27:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:32,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:27:32,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:27:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2022-07-20 02:27:32,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:27:32,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:27:32,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681800008] [2022-07-20 02:27:32,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681800008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:27:32,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:27:32,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:27:32,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750617738] [2022-07-20 02:27:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:32,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:27:32,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:27:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:27:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:27:32,974 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) [2022-07-20 02:27:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:35,795 INFO L93 Difference]: Finished difference Result 110510 states and 154682 transitions. [2022-07-20 02:27:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:27:35,796 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 [2022-07-20 02:27:35,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:36,030 INFO L225 Difference]: With dead ends: 110510 [2022-07-20 02:27:36,030 INFO L226 Difference]: Without dead ends: 62916 [2022-07-20 02:27:36,135 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 [2022-07-20 02:27:36,136 INFO L413 NwaCegarLoop]: 4474 mSDtfsCounter, 2190 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:27:36,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 6782 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:27:36,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62916 states. [2022-07-20 02:27:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62916 to 47565. [2022-07-20 02:27:38,710 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) [2022-07-20 02:27:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47565 states to 47565 states and 66547 transitions. [2022-07-20 02:27:38,851 INFO L78 Accepts]: Start accepts. Automaton has 47565 states and 66547 transitions. Word has length 357 [2022-07-20 02:27:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:27:38,852 INFO L495 AbstractCegarLoop]: Abstraction has 47565 states and 66547 transitions. [2022-07-20 02:27:38,852 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) [2022-07-20 02:27:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 47565 states and 66547 transitions. [2022-07-20 02:27:39,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-20 02:27:39,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:27:39,018 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] [2022-07-20 02:27:39,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-20 02:27:39,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:27:39,218 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)] === [2022-07-20 02:27:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:27:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1056491865, now seen corresponding path program 1 times [2022-07-20 02:27:39,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:27:39,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323800974] [2022-07-20 02:27:39,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:27:39,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:27:39,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:27:39,222 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:27:39,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-20 02:27:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:27:40,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:27:40,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:27:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2022-07-20 02:27:40,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:27:40,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:27:40,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323800974] [2022-07-20 02:27:40,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323800974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:27:40,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:27:40,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:27:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724831867] [2022-07-20 02:27:40,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:27:40,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:27:40,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:27:40,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:27:40,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:27:40,591 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) [2022-07-20 02:27:43,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:27:43,393 INFO L93 Difference]: Finished difference Result 110578 states and 154811 transitions. [2022-07-20 02:27:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:27:43,394 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 [2022-07-20 02:27:43,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:27:43,603 INFO L225 Difference]: With dead ends: 110578 [2022-07-20 02:27:43,603 INFO L226 Difference]: Without dead ends: 63103 [2022-07-20 02:27:43,706 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 [2022-07-20 02:27:43,707 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:27:43,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 6831 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 02:27:43,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63103 states.