./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:55:25,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:55:25,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:55:25,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:55:25,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:55:25,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:55:25,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:55:25,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:55:25,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:55:25,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:55:25,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:55:25,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:55:25,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:55:25,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:55:25,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:55:25,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:55:25,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:55:25,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:55:25,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:55:25,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:55:25,255 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:55:25,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:55:25,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:55:25,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:55:25,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:55:25,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:55:25,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:55:25,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:55:25,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:55:25,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:55:25,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:55:25,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:55:25,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:55:25,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:55:25,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:55:25,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:55:25,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:55:25,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:55:25,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:55:25,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:55:25,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:55:25,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:55:25,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:55:25,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:55:25,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:55:25,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:55:25,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:55:25,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:55:25,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:55:25,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:55:25,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:55:25,310 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:55:25,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:55:25,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:55:25,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:55:25,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:55:25,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:55:25,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:55:25,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:55:25,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:55:25,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:55:25,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:55:25,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:55:25,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:55:25,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:55:25,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:55:25,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:55:25,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:55:25,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:55:25,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:55:25,316 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:55:25,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:55:25,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:55:25,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-14 02:55:25,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:55:25,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:55:25,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:55:25,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:55:25,557 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:55:25,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-14 02:55:25,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5049ad839/644508c5fd724f9d8452278e723a5049/FLAG513c52467 [2022-07-14 02:55:26,351 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:55:26,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-14 02:55:26,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5049ad839/644508c5fd724f9d8452278e723a5049/FLAG513c52467 [2022-07-14 02:55:26,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5049ad839/644508c5fd724f9d8452278e723a5049 [2022-07-14 02:55:26,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:55:26,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:55:26,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:55:26,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:55:26,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:55:26,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:55:26" (1/1) ... [2022-07-14 02:55:26,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fde9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:26, skipping insertion in model container [2022-07-14 02:55:26,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:55:26" (1/1) ... [2022-07-14 02:55:26,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:55:27,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:55:30,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-14 02:55:30,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-14 02:55:30,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-14 02:55:30,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-14 02:55:30,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:55:30,106 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:55:30,309 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 02:55:30,319 INFO L158 Benchmark]: Toolchain (without parser) took 3416.12ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 56.9MB in the beginning and 141.9MB in the end (delta: -85.0MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-07-14 02:55:30,320 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 02:55:30,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3412.62ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 56.7MB in the beginning and 141.9MB in the end (delta: -85.2MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-07-14 02:55:30,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3412.62ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 56.7MB in the beginning and 141.9MB in the end (delta: -85.2MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:55:32,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:55:32,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:55:32,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:55:32,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:55:32,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:55:32,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:55:32,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:55:32,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:55:32,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:55:32,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:55:32,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:55:32,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:55:32,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:55:32,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:55:32,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:55:32,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:55:32,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:55:32,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:55:32,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:55:32,169 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:55:32,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:55:32,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:55:32,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:55:32,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:55:32,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:55:32,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:55:32,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:55:32,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:55:32,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:55:32,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:55:32,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:55:32,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:55:32,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:55:32,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:55:32,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:55:32,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:55:32,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:55:32,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:55:32,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:55:32,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:55:32,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:55:32,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 02:55:32,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:55:32,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:55:32,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:55:32,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:55:32,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:55:32,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:55:32,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:55:32,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:55:32,230 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:55:32,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:55:32,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:55:32,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:55:32,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:55:32,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:55:32,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 02:55:32,232 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 02:55:32,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 02:55:32,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:55:32,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:55:32,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:55:32,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:55:32,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:55:32,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:55:32,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:55:32,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:55:32,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:55:32,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:55:32,235 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 02:55:32,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 02:55:32,235 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:55:32,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:55:32,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:55:32,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 02:55:32,236 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2022-07-14 02:55:32,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:55:32,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:55:32,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:55:32,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:55:32,569 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:55:32,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-14 02:55:32,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a10b3333/c5a9cae937ae4652b3014605dcb8b9a3/FLAG36cce12f3 [2022-07-14 02:55:33,491 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:55:33,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-14 02:55:33,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a10b3333/c5a9cae937ae4652b3014605dcb8b9a3/FLAG36cce12f3 [2022-07-14 02:55:33,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a10b3333/c5a9cae937ae4652b3014605dcb8b9a3 [2022-07-14 02:55:33,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:55:33,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:55:33,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:55:33,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:55:33,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:55:33,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:55:33" (1/1) ... [2022-07-14 02:55:33,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181fc4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:33, skipping insertion in model container [2022-07-14 02:55:33,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:55:33" (1/1) ... [2022-07-14 02:55:33,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:55:33,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:55:36,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-14 02:55:36,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-14 02:55:36,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-14 02:55:36,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-14 02:55:36,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:55:36,917 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 02:55:37,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:55:37,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-14 02:55:37,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-14 02:55:37,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-14 02:55:37,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-14 02:55:37,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:55:37,338 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:55:37,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2022-07-14 02:55:37,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2022-07-14 02:55:37,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2022-07-14 02:55:37,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2022-07-14 02:55:37,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:55:38,003 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:55:38,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38 WrapperNode [2022-07-14 02:55:38,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:55:38,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:55:38,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:55:38,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:55:38,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,319 INFO L137 Inliner]: procedures = 551, calls = 2748, calls flagged for inlining = 264, calls inlined = 238, statements flattened = 6118 [2022-07-14 02:55:38,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 02:55:38,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 02:55:38,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 02:55:38,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 02:55:38,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 02:55:38,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 02:55:38,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 02:55:38,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 02:55:38,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (1/1) ... [2022-07-14 02:55:38,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:55:38,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:55:38,668 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) [2022-07-14 02:55:38,686 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 [2022-07-14 02:55:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 02:55:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 02:55:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_eeprom_len [2022-07-14 02:55:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_eeprom_len [2022-07-14 02:55:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 02:55:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 02:55:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_nway_reset [2022-07-14 02:55:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_nway_reset [2022-07-14 02:55:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 02:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 02:55:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 02:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 02:55:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-07-14 02:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-07-14 02:55:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 02:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 02:55:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-14 02:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-14 02:55:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 02:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 02:55:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 02:55:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 02:55:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 02:55:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 02:55:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-14 02:55:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-14 02:55:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-14 02:55:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-14 02:55:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_irq [2022-07-14 02:55:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_irq [2022-07-14 02:55:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 02:55:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 02:55:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 02:55:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 02:55:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_close [2022-07-14 02:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_close [2022-07-14 02:55:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_speed_and_duplex [2022-07-14 02:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_speed_and_duplex [2022-07-14 02:55:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_force_ps [2022-07-14 02:55:38,711 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_force_ps [2022-07-14 02:55:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 02:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 02:55:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 02:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 02:55:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 02:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 02:55:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 02:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 02:55:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 02:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 02:55:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 02:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 02:55:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 02:55:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 02:55:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 02:55:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-14 02:55:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-14 02:55:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 02:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 02:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 02:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-14 02:55:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-14 02:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_write_phy_reg [2022-07-14 02:55:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_write_phy_reg [2022-07-14 02:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-14 02:55:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-14 02:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_vlan_mode [2022-07-14 02:55:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_vlan_mode [2022-07-14 02:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 02:55:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 02:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_up [2022-07-14 02:55:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_up [2022-07-14 02:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 02:55:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 02:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 02:55:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 02:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_tx_timeout [2022-07-14 02:55:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_tx_timeout [2022-07-14 02:55:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_enable [2022-07-14 02:55:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_enable [2022-07-14 02:55:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 02:55:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 02:55:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_poll_controller [2022-07-14 02:55:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_poll_controller [2022-07-14 02:55:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 02:55:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 02:55:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_disable [2022-07-14 02:55:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_disable [2022-07-14 02:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 02:55:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 02:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-14 02:55:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2022-07-14 02:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 02:55:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 02:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 02:55:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 02:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-14 02:55:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-14 02:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 02:55:38,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 02:55:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 02:55:38,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 02:55:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_shutdown [2022-07-14 02:55:38,726 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_shutdown [2022-07-14 02:55:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure __atl2_vlan_mode [2022-07-14 02:55:38,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl2_vlan_mode [2022-07-14 02:55:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 02:55:38,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 02:55:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 02:55:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 02:55:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 02:55:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 02:55:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 02:55:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-14 02:55:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-14 02:55:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 02:55:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-14 02:55:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-14 02:55:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 02:55:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 02:55:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 02:55:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 02:55:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 02:55:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 02:55:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 02:55:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 02:55:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 02:55:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_set_multi [2022-07-14 02:55:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_set_multi [2022-07-14 02:55:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_phy_init [2022-07-14 02:55:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_phy_init [2022-07-14 02:55:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 02:55:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 02:55:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_configure [2022-07-14 02:55:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_configure [2022-07-14 02:55:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reset_hw [2022-07-14 02:55:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reset_hw [2022-07-14 02:55:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 02:55:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 02:55:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 02:55:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 02:55:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_open [2022-07-14 02:55:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_open [2022-07-14 02:55:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 02:55:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 02:55:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 02:55:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 02:55:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_validate_option [2022-07-14 02:55:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_validate_option [2022-07-14 02:55:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-14 02:55:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2022-07-14 02:55:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 02:55:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 02:55:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 02:55:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 02:55:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 02:55:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_intr [2022-07-14 02:55:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_intr [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 02:55:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 02:55:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 02:55:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 02:55:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 02:55:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 02:55:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 02:55:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 02:55:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 02:55:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 02:55:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 02:55:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 02:55:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_remove [2022-07-14 02:55:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_remove [2022-07-14 02:55:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_eeprom [2022-07-14 02:55:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_eeprom [2022-07-14 02:55:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-14 02:55:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-14 02:55:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 02:55:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 02:55:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 02:55:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 02:55:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_request_irq [2022-07-14 02:55:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_request_irq [2022-07-14 02:55:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 02:55:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 02:55:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_phy_reg [2022-07-14 02:55:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_phy_reg [2022-07-14 02:55:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-14 02:55:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-14 02:55:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 02:55:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 02:55:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 02:55:38,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-14 02:55:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-14 02:55:38,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 02:55:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 02:55:38,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 02:55:38,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-14 02:55:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-14 02:55:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 02:55:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 02:55:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 02:55:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 02:55:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_suspend [2022-07-14 02:55:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_suspend [2022-07-14 02:55:38,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 02:55:38,748 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reinit_locked [2022-07-14 02:55:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reinit_locked [2022-07-14 02:55:38,748 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 02:55:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 02:55:38,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 02:55:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 02:55:38,749 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 02:55:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 02:55:38,749 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_resume [2022-07-14 02:55:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_resume [2022-07-14 02:55:38,749 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 02:55:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 02:55:38,749 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-14 02:55:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-14 02:55:38,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-07-14 02:55:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-07-14 02:55:38,750 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 02:55:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 02:55:38,750 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 02:55:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 02:55:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 02:55:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 02:55:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 02:55:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 02:55:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 02:55:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 02:55:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_regs_len [2022-07-14 02:55:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_regs_len [2022-07-14 02:55:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_check_eeprom_exist [2022-07-14 02:55:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_check_eeprom_exist [2022-07-14 02:55:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 02:55:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 02:55:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_restore_vlan [2022-07-14 02:55:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_restore_vlan [2022-07-14 02:55:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 02:55:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 02:55:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2022-07-14 02:55:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2022-07-14 02:55:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring_ptrs [2022-07-14 02:55:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring_ptrs [2022-07-14 02:55:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-14 02:55:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-14 02:55:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-14 02:55:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-14 02:55:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_ring_resources [2022-07-14 02:55:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_ring_resources [2022-07-14 02:55:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 02:55:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 02:55:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_down [2022-07-14 02:55:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_down [2022-07-14 02:55:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 02:55:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 02:55:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-14 02:55:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-14 02:55:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 02:55:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 02:55:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 02:55:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 02:55:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_init_hw [2022-07-14 02:55:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_init_hw [2022-07-14 02:55:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 02:55:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 02:55:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-14 02:55:39,704 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 02:55:39,709 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 02:55:39,880 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 02:56:15,626 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 02:56:19,585 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 02:56:19,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 02:56:19,612 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-14 02:56:19,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:56:19 BoogieIcfgContainer [2022-07-14 02:56:19,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 02:56:19,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 02:56:19,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 02:56:19,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 02:56:19,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:55:33" (1/3) ... [2022-07-14 02:56:19,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fff1e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:56:19, skipping insertion in model container [2022-07-14 02:56:19,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:55:38" (2/3) ... [2022-07-14 02:56:19,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fff1e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:56:19, skipping insertion in model container [2022-07-14 02:56:19,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:56:19" (3/3) ... [2022-07-14 02:56:19,673 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2022-07-14 02:56:19,685 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 02:56:19,685 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 02:56:19,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 02:56:19,794 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@5898bbf0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6a85a92 [2022-07-14 02:56:19,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 02:56:19,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) [2022-07-14 02:56:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-14 02:56:19,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:19,830 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:19,831 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)] === [2022-07-14 02:56:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:19,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1128025312, now seen corresponding path program 1 times [2022-07-14 02:56:19,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:19,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864134414] [2022-07-14 02:56:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:19,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:19,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:19,855 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) [2022-07-14 02:56:19,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 02:56:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:21,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:56:21,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-14 02:56:21,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:21,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:21,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864134414] [2022-07-14 02:56:21,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864134414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:21,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:21,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:56:21,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561447935] [2022-07-14 02:56:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:21,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:56:21,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:56:21,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:21,783 INFO L87 Difference]: Start difference. First operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:56:22,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:22,353 INFO L93 Difference]: Finished difference Result 6818 states and 9545 transitions. [2022-07-14 02:56:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:56:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-07-14 02:56:22,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:22,406 INFO L225 Difference]: With dead ends: 6818 [2022-07-14 02:56:22,406 INFO L226 Difference]: Without dead ends: 4502 [2022-07-14 02:56:22,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:22,440 INFO L413 NwaCegarLoop]: 3773 mSDtfsCounter, 3061 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:22,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3061 Valid, 6910 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:56:22,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-07-14 02:56:22,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4498. [2022-07-14 02:56:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3063 states have (on average 1.2396343454129939) internal successors, (3797), 3105 states have internal predecessors, (3797), 1197 states have call successors, (1197), 236 states have call predecessors, (1197), 235 states have return successors, (1194), 1190 states have call predecessors, (1194), 1194 states have call successors, (1194) [2022-07-14 02:56:22,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6188 transitions. [2022-07-14 02:56:22,779 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6188 transitions. Word has length 167 [2022-07-14 02:56:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:22,782 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 6188 transitions. [2022-07-14 02:56:22,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:56:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6188 transitions. [2022-07-14 02:56:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-14 02:56:22,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:22,791 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:22,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 02:56:22,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:22,999 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)] === [2022-07-14 02:56:23,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:23,000 INFO L85 PathProgramCache]: Analyzing trace with hash 75480426, now seen corresponding path program 1 times [2022-07-14 02:56:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:23,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812095727] [2022-07-14 02:56:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:23,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:23,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:23,006 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) [2022-07-14 02:56:23,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 02:56:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:24,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:56:24,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-14 02:56:24,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:24,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:24,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812095727] [2022-07-14 02:56:24,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812095727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:24,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:24,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:56:24,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871375171] [2022-07-14 02:56:24,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:24,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:56:24,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:24,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:56:24,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:24,745 INFO L87 Difference]: Start difference. First operand 4498 states and 6188 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:56:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:25,288 INFO L93 Difference]: Finished difference Result 13216 states and 18204 transitions. [2022-07-14 02:56:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:56:25,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 171 [2022-07-14 02:56:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:25,350 INFO L225 Difference]: With dead ends: 13216 [2022-07-14 02:56:25,350 INFO L226 Difference]: Without dead ends: 8749 [2022-07-14 02:56:25,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:25,369 INFO L413 NwaCegarLoop]: 3750 mSDtfsCounter, 3057 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:25,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 6813 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:56:25,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8749 states. [2022-07-14 02:56:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8749 to 8711. [2022-07-14 02:56:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 5965 states have (on average 1.2442581726739312) internal successors, (7422), 6055 states have internal predecessors, (7422), 2286 states have call successors, (2286), 468 states have call predecessors, (2286), 457 states have return successors, (2299), 2251 states have call predecessors, (2299), 2283 states have call successors, (2299) [2022-07-14 02:56:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 12007 transitions. [2022-07-14 02:56:25,744 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 12007 transitions. Word has length 171 [2022-07-14 02:56:25,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:25,744 INFO L495 AbstractCegarLoop]: Abstraction has 8711 states and 12007 transitions. [2022-07-14 02:56:25,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:56:25,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 12007 transitions. [2022-07-14 02:56:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-14 02:56:25,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:25,752 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:25,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:25,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:25,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 02:56:25,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:25,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1694760687, now seen corresponding path program 1 times [2022-07-14 02:56:25,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:25,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877414102] [2022-07-14 02:56:25,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:25,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:25,974 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) [2022-07-14 02:56:25,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 02:56:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:27,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:56:27,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:27,514 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-14 02:56:27,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:27,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:27,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877414102] [2022-07-14 02:56:27,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877414102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:27,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:27,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:56:27,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701821817] [2022-07-14 02:56:27,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:27,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:56:27,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:27,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:56:27,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:27,517 INFO L87 Difference]: Start difference. First operand 8711 states and 12007 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 02:56:28,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:28,223 INFO L93 Difference]: Finished difference Result 25907 states and 35775 transitions. [2022-07-14 02:56:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:56:28,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-07-14 02:56:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:28,364 INFO L225 Difference]: With dead ends: 25907 [2022-07-14 02:56:28,365 INFO L226 Difference]: Without dead ends: 17227 [2022-07-14 02:56:28,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:28,417 INFO L413 NwaCegarLoop]: 3788 mSDtfsCounter, 3084 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:28,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6895 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:56:28,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17227 states. [2022-07-14 02:56:29,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17227 to 17185. [2022-07-14 02:56:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17185 states, 11779 states have (on average 1.2449274131929706) internal successors, (14664), 11965 states have internal predecessors, (14664), 4502 states have call successors, (4502), 930 states have call predecessors, (4502), 901 states have return successors, (4577), 4413 states have call predecessors, (4577), 4499 states have call successors, (4577) [2022-07-14 02:56:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 23743 transitions. [2022-07-14 02:56:29,232 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 23743 transitions. Word has length 184 [2022-07-14 02:56:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:29,233 INFO L495 AbstractCegarLoop]: Abstraction has 17185 states and 23743 transitions. [2022-07-14 02:56:29,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 02:56:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 23743 transitions. [2022-07-14 02:56:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 02:56:29,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:29,238 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:29,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:29,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:29,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 02:56:29,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2004995607, now seen corresponding path program 1 times [2022-07-14 02:56:29,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:29,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326288192] [2022-07-14 02:56:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:29,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:29,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:29,464 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) [2022-07-14 02:56:29,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 02:56:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:30,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:56:30,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-07-14 02:56:30,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:30,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:30,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326288192] [2022-07-14 02:56:30,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326288192] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:30,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:30,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:56:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080595024] [2022-07-14 02:56:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:30,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:56:30,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:56:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:30,933 INFO L87 Difference]: Start difference. First operand 17185 states and 23743 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:56:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:32,198 INFO L93 Difference]: Finished difference Result 46595 states and 64065 transitions. [2022-07-14 02:56:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:56:32,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 189 [2022-07-14 02:56:32,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:32,477 INFO L225 Difference]: With dead ends: 46595 [2022-07-14 02:56:32,477 INFO L226 Difference]: Without dead ends: 29441 [2022-07-14 02:56:32,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:32,617 INFO L413 NwaCegarLoop]: 3648 mSDtfsCounter, 2349 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:32,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 6701 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 02:56:32,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29441 states. [2022-07-14 02:56:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29441 to 29397. [2022-07-14 02:56:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29397 states, 19977 states have (on average 1.2353206187115182) internal successors, (24678), 20309 states have internal predecessors, (24678), 7722 states have call successors, (7722), 1754 states have call predecessors, (7722), 1695 states have return successors, (7871), 7545 states have call predecessors, (7871), 7719 states have call successors, (7871) [2022-07-14 02:56:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29397 states to 29397 states and 40271 transitions. [2022-07-14 02:56:33,892 INFO L78 Accepts]: Start accepts. Automaton has 29397 states and 40271 transitions. Word has length 189 [2022-07-14 02:56:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:33,893 INFO L495 AbstractCegarLoop]: Abstraction has 29397 states and 40271 transitions. [2022-07-14 02:56:33,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:56:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 29397 states and 40271 transitions. [2022-07-14 02:56:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 02:56:33,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:33,900 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:33,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:34,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:34,124 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)] === [2022-07-14 02:56:34,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:34,124 INFO L85 PathProgramCache]: Analyzing trace with hash -35456696, now seen corresponding path program 1 times [2022-07-14 02:56:34,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:34,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768789817] [2022-07-14 02:56:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:34,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:34,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:34,129 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) [2022-07-14 02:56:34,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 02:56:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:35,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:56:35,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:35,573 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-07-14 02:56:35,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:35,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:35,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768789817] [2022-07-14 02:56:35,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768789817] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:35,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:35,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:56:35,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635248953] [2022-07-14 02:56:35,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:35,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:56:35,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:35,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:56:35,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:35,575 INFO L87 Difference]: Start difference. First operand 29397 states and 40271 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 02:56:36,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:36,661 INFO L93 Difference]: Finished difference Result 58876 states and 80614 transitions. [2022-07-14 02:56:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:56:36,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 219 [2022-07-14 02:56:36,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:36,898 INFO L225 Difference]: With dead ends: 58876 [2022-07-14 02:56:36,898 INFO L226 Difference]: Without dead ends: 43956 [2022-07-14 02:56:36,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:36,968 INFO L413 NwaCegarLoop]: 6220 mSDtfsCounter, 3069 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 9356 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:36,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 9356 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:56:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43956 states. [2022-07-14 02:56:38,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43956 to 43931. [2022-07-14 02:56:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43931 states, 29862 states have (on average 1.2354497354497354) internal successors, (36893), 30351 states have internal predecessors, (36893), 11524 states have call successors, (11524), 2630 states have call predecessors, (11524), 2542 states have return successors, (11749), 11267 states have call predecessors, (11749), 11521 states have call successors, (11749) [2022-07-14 02:56:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43931 states to 43931 states and 60166 transitions. [2022-07-14 02:56:38,869 INFO L78 Accepts]: Start accepts. Automaton has 43931 states and 60166 transitions. Word has length 219 [2022-07-14 02:56:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:38,871 INFO L495 AbstractCegarLoop]: Abstraction has 43931 states and 60166 transitions. [2022-07-14 02:56:38,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 02:56:38,871 INFO L276 IsEmpty]: Start isEmpty. Operand 43931 states and 60166 transitions. [2022-07-14 02:56:38,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 02:56:38,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:38,876 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:38,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:39,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:39,096 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)] === [2022-07-14 02:56:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 387245130, now seen corresponding path program 1 times [2022-07-14 02:56:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:39,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169457408] [2022-07-14 02:56:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:39,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:39,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:39,100 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) [2022-07-14 02:56:39,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 02:56:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:40,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:56:40,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-14 02:56:42,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:42,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:42,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169457408] [2022-07-14 02:56:42,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169457408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:42,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:42,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:56:42,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900964426] [2022-07-14 02:56:42,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:42,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:56:42,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:42,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:56:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:56:42,523 INFO L87 Difference]: Start difference. First operand 43931 states and 60166 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-14 02:56:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:43,878 INFO L93 Difference]: Finished difference Result 44671 states and 60910 transitions. [2022-07-14 02:56:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:56:43,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 219 [2022-07-14 02:56:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:44,112 INFO L225 Difference]: With dead ends: 44671 [2022-07-14 02:56:44,113 INFO L226 Difference]: Without dead ends: 44669 [2022-07-14 02:56:44,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:56:44,149 INFO L413 NwaCegarLoop]: 3183 mSDtfsCounter, 3059 mSDsluCounter, 6396 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 9579 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:44,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 9579 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:56:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44669 states. [2022-07-14 02:56:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44669 to 44667. [2022-07-14 02:56:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44667 states, 30342 states have (on average 1.233999077186738) internal successors, (37442), 30879 states have internal predecessors, (37442), 11620 states have call successors, (11620), 2790 states have call predecessors, (11620), 2702 states have return successors, (11845), 11363 states have call predecessors, (11845), 11617 states have call successors, (11845) [2022-07-14 02:56:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44667 states to 44667 states and 60907 transitions. [2022-07-14 02:56:46,287 INFO L78 Accepts]: Start accepts. Automaton has 44667 states and 60907 transitions. Word has length 219 [2022-07-14 02:56:46,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:46,288 INFO L495 AbstractCegarLoop]: Abstraction has 44667 states and 60907 transitions. [2022-07-14 02:56:46,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-14 02:56:46,289 INFO L276 IsEmpty]: Start isEmpty. Operand 44667 states and 60907 transitions. [2022-07-14 02:56:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-14 02:56:46,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:46,295 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:46,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:46,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:46,508 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)] === [2022-07-14 02:56:46,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:46,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1206012490, now seen corresponding path program 1 times [2022-07-14 02:56:46,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:46,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420650311] [2022-07-14 02:56:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:46,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:46,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:46,513 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) [2022-07-14 02:56:46,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 02:56:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:48,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:56:48,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-14 02:56:49,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:56:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-07-14 02:56:50,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:50,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420650311] [2022-07-14 02:56:50,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420650311] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:56:50,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:56:50,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:56:50,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677293835] [2022-07-14 02:56:50,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:56:50,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:56:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:56:50,437 INFO L87 Difference]: Start difference. First operand 44667 states and 60907 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 02:56:51,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:51,619 INFO L93 Difference]: Finished difference Result 44673 states and 60912 transitions. [2022-07-14 02:56:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:56:51,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2022-07-14 02:56:51,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:51,834 INFO L225 Difference]: With dead ends: 44673 [2022-07-14 02:56:51,834 INFO L226 Difference]: Without dead ends: 44671 [2022-07-14 02:56:51,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:56:51,865 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:51,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:56:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44671 states. [2022-07-14 02:56:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44671 to 44671. [2022-07-14 02:56:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44671 states, 30345 states have (on average 1.2339759433185038) internal successors, (37445), 30882 states have internal predecessors, (37445), 11620 states have call successors, (11620), 2791 states have call predecessors, (11620), 2703 states have return successors, (11845), 11363 states have call predecessors, (11845), 11617 states have call successors, (11845) [2022-07-14 02:56:53,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44671 states to 44671 states and 60910 transitions. [2022-07-14 02:56:53,530 INFO L78 Accepts]: Start accepts. Automaton has 44671 states and 60910 transitions. Word has length 224 [2022-07-14 02:56:53,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:53,531 INFO L495 AbstractCegarLoop]: Abstraction has 44671 states and 60910 transitions. [2022-07-14 02:56:53,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 02:56:53,531 INFO L276 IsEmpty]: Start isEmpty. Operand 44671 states and 60910 transitions. [2022-07-14 02:56:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-14 02:56:53,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:53,537 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:53,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:53,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:53,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 02:56:53,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:53,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1923579839, now seen corresponding path program 1 times [2022-07-14 02:56:53,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:53,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514586900] [2022-07-14 02:56:53,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:53,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:53,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:53,757 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) [2022-07-14 02:56:53,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 02:56:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:56:55,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:56:55,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:56:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2022-07-14 02:56:55,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:56:55,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:56:55,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514586900] [2022-07-14 02:56:55,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514586900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:56:55,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:56:55,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:56:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567390698] [2022-07-14 02:56:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:56:55,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:56:55,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:56:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:56:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:55,469 INFO L87 Difference]: Start difference. First operand 44671 states and 60910 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-14 02:56:57,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:56:57,087 INFO L93 Difference]: Finished difference Result 87436 states and 118898 transitions. [2022-07-14 02:56:57,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:56:57,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 222 [2022-07-14 02:56:57,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:56:57,286 INFO L225 Difference]: With dead ends: 87436 [2022-07-14 02:56:57,286 INFO L226 Difference]: Without dead ends: 42796 [2022-07-14 02:56:57,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:56:57,429 INFO L413 NwaCegarLoop]: 4693 mSDtfsCounter, 1971 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:56:57,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 7793 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 02:56:57,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42796 states. [2022-07-14 02:56:58,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42796 to 42753. [2022-07-14 02:56:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42753 states, 29274 states have (on average 1.2312973970075836) internal successors, (36045), 29778 states have internal predecessors, (36045), 10755 states have call successors, (10755), 2792 states have call predecessors, (10755), 2721 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-14 02:56:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42753 states to 42753 states and 57708 transitions. [2022-07-14 02:56:58,932 INFO L78 Accepts]: Start accepts. Automaton has 42753 states and 57708 transitions. Word has length 222 [2022-07-14 02:56:58,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:56:58,933 INFO L495 AbstractCegarLoop]: Abstraction has 42753 states and 57708 transitions. [2022-07-14 02:56:58,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-14 02:56:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 42753 states and 57708 transitions. [2022-07-14 02:56:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-14 02:56:58,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:56:58,937 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:56:58,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 02:56:59,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:56:59,156 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)] === [2022-07-14 02:56:59,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:56:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash -648544374, now seen corresponding path program 1 times [2022-07-14 02:56:59,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:56:59,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494818446] [2022-07-14 02:56:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:56:59,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:56:59,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:56:59,160 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) [2022-07-14 02:56:59,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 02:57:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:57:00,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:57:00,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:57:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-14 02:57:02,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:57:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-07-14 02:57:02,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:57:02,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494818446] [2022-07-14 02:57:02,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494818446] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:57:02,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:57:02,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:57:02,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400464964] [2022-07-14 02:57:02,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:57:02,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:57:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:57:02,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:57:02,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:57:02,798 INFO L87 Difference]: Start difference. First operand 42753 states and 57708 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 02:57:03,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:57:03,875 INFO L93 Difference]: Finished difference Result 42759 states and 57713 transitions. [2022-07-14 02:57:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:57:03,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 229 [2022-07-14 02:57:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:57:04,109 INFO L225 Difference]: With dead ends: 42759 [2022-07-14 02:57:04,110 INFO L226 Difference]: Without dead ends: 42757 [2022-07-14 02:57:04,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:57:04,125 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:57:04,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:57:04,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42757 states. [2022-07-14 02:57:05,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42757 to 42757. [2022-07-14 02:57:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42757 states, 29277 states have (on average 1.2312736960754176) internal successors, (36048), 29781 states have internal predecessors, (36048), 10755 states have call successors, (10755), 2793 states have call predecessors, (10755), 2722 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-14 02:57:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42757 states to 42757 states and 57711 transitions. [2022-07-14 02:57:05,411 INFO L78 Accepts]: Start accepts. Automaton has 42757 states and 57711 transitions. Word has length 229 [2022-07-14 02:57:05,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:57:05,412 INFO L495 AbstractCegarLoop]: Abstraction has 42757 states and 57711 transitions. [2022-07-14 02:57:05,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 02:57:05,413 INFO L276 IsEmpty]: Start isEmpty. Operand 42757 states and 57711 transitions. [2022-07-14 02:57:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-14 02:57:05,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:57:05,415 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:57:05,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-14 02:57:05,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:57:05,619 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 02:57:05,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:57:05,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1745080822, now seen corresponding path program 1 times [2022-07-14 02:57:05,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:57:05,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662768693] [2022-07-14 02:57:05,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:57:05,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:57:05,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:57:05,624 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) [2022-07-14 02:57:05,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 02:57:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:57:06,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:57:06,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:57:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-14 02:57:08,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:57:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-07-14 02:57:09,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:57:09,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662768693] [2022-07-14 02:57:09,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662768693] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:57:09,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:57:09,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:57:09,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133829693] [2022-07-14 02:57:09,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:57:09,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:57:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:57:09,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:57:09,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:57:09,142 INFO L87 Difference]: Start difference. First operand 42757 states and 57711 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 02:57:10,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:57:10,305 INFO L93 Difference]: Finished difference Result 42763 states and 57716 transitions. [2022-07-14 02:57:10,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:57:10,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2022-07-14 02:57:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:57:10,449 INFO L225 Difference]: With dead ends: 42763 [2022-07-14 02:57:10,449 INFO L226 Difference]: Without dead ends: 42761 [2022-07-14 02:57:10,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:57:10,477 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:57:10,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:57:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42761 states. [2022-07-14 02:57:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42761 to 42761. [2022-07-14 02:57:11,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42761 states, 29280 states have (on average 1.23125) internal successors, (36051), 29784 states have internal predecessors, (36051), 10755 states have call successors, (10755), 2794 states have call predecessors, (10755), 2723 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-14 02:57:11,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42761 states to 42761 states and 57714 transitions. [2022-07-14 02:57:11,933 INFO L78 Accepts]: Start accepts. Automaton has 42761 states and 57714 transitions. Word has length 234 [2022-07-14 02:57:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:57:11,934 INFO L495 AbstractCegarLoop]: Abstraction has 42761 states and 57714 transitions. [2022-07-14 02:57:11,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 02:57:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 42761 states and 57714 transitions. [2022-07-14 02:57:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 02:57:11,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:57:11,937 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:57:11,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 02:57:12,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:57:12,152 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 02:57:12,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:57:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1582545610, now seen corresponding path program 1 times [2022-07-14 02:57:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:57:12,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916254190] [2022-07-14 02:57:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:57:12,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:57:12,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:57:12,155 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) [2022-07-14 02:57:12,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 02:57:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:57:13,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:57:13,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:57:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-14 02:57:15,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:57:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-14 02:57:15,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:57:15,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916254190] [2022-07-14 02:57:15,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916254190] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:57:15,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:57:15,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:57:15,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256844028] [2022-07-14 02:57:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:57:15,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:57:15,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:57:15,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:57:15,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:57:15,810 INFO L87 Difference]: Start difference. First operand 42761 states and 57714 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 02:57:16,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:57:16,860 INFO L93 Difference]: Finished difference Result 42767 states and 57719 transitions. [2022-07-14 02:57:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:57:16,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 239 [2022-07-14 02:57:16,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:57:17,018 INFO L225 Difference]: With dead ends: 42767 [2022-07-14 02:57:17,018 INFO L226 Difference]: Without dead ends: 42765 [2022-07-14 02:57:17,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:57:17,046 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:57:17,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:57:17,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42765 states. [2022-07-14 02:57:18,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42765 to 42765. [2022-07-14 02:57:18,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42765 states, 29283 states have (on average 1.231226308779838) internal successors, (36054), 29787 states have internal predecessors, (36054), 10755 states have call successors, (10755), 2795 states have call predecessors, (10755), 2724 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-14 02:57:18,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42765 states to 42765 states and 57717 transitions. [2022-07-14 02:57:18,498 INFO L78 Accepts]: Start accepts. Automaton has 42765 states and 57717 transitions. Word has length 239 [2022-07-14 02:57:18,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:57:18,499 INFO L495 AbstractCegarLoop]: Abstraction has 42765 states and 57717 transitions. [2022-07-14 02:57:18,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 02:57:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 42765 states and 57717 transitions. [2022-07-14 02:57:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-14 02:57:18,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:57:18,502 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:57:18,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-14 02:57:18,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:57:18,709 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)] === [2022-07-14 02:57:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:57:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1335184950, now seen corresponding path program 1 times [2022-07-14 02:57:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:57:18,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355946846] [2022-07-14 02:57:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:57:18,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:57:18,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:57:18,713 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) [2022-07-14 02:57:18,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 02:57:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:57:19,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:57:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:57:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-14 02:57:21,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:57:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-14 02:57:22,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:57:22,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355946846] [2022-07-14 02:57:22,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355946846] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:57:22,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:57:22,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:57:22,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687900613] [2022-07-14 02:57:22,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:57:22,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:57:22,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:57:22,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:57:22,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:57:22,284 INFO L87 Difference]: Start difference. First operand 42765 states and 57717 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:57:23,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:57:23,538 INFO L93 Difference]: Finished difference Result 42771 states and 57722 transitions. [2022-07-14 02:57:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:57:23,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2022-07-14 02:57:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:57:23,671 INFO L225 Difference]: With dead ends: 42771 [2022-07-14 02:57:23,671 INFO L226 Difference]: Without dead ends: 42769 [2022-07-14 02:57:23,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:57:23,691 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:57:23,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:57:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2022-07-14 02:57:25,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 42769. [2022-07-14 02:57:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42769 states, 29286 states have (on average 1.2312026224134398) internal successors, (36057), 29790 states have internal predecessors, (36057), 10755 states have call successors, (10755), 2796 states have call predecessors, (10755), 2725 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-14 02:57:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42769 states to 42769 states and 57720 transitions. [2022-07-14 02:57:25,272 INFO L78 Accepts]: Start accepts. Automaton has 42769 states and 57720 transitions. Word has length 244 [2022-07-14 02:57:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:57:25,272 INFO L495 AbstractCegarLoop]: Abstraction has 42769 states and 57720 transitions. [2022-07-14 02:57:25,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:57:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 42769 states and 57720 transitions. [2022-07-14 02:57:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-14 02:57:25,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:57:25,282 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:57:25,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 02:57:25,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:57:25,486 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)] === [2022-07-14 02:57:25,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:57:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1883236854, now seen corresponding path program 1 times [2022-07-14 02:57:25,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:57:25,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72438583] [2022-07-14 02:57:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:57:25,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:57:25,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:57:25,488 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) [2022-07-14 02:57:25,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 02:57:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:57:26,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:57:26,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:57:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-14 02:57:28,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:57:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-07-14 02:57:29,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:57:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72438583] [2022-07-14 02:57:29,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72438583] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:57:29,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:57:29,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:57:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248725768] [2022-07-14 02:57:29,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:57:29,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:57:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:57:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:57:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:57:29,100 INFO L87 Difference]: Start difference. First operand 42769 states and 57720 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 02:57:30,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:57:30,319 INFO L93 Difference]: Finished difference Result 42775 states and 57725 transitions. [2022-07-14 02:57:30,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:57:30,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 249 [2022-07-14 02:57:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:57:30,458 INFO L225 Difference]: With dead ends: 42775 [2022-07-14 02:57:30,459 INFO L226 Difference]: Without dead ends: 42773 [2022-07-14 02:57:30,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:57:30,479 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:57:30,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3100 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:57:30,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42773 states. [2022-07-14 02:57:31,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42773 to 42773. [2022-07-14 02:57:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42773 states, 29289 states have (on average 1.2311789408993137) internal successors, (36060), 29793 states have internal predecessors, (36060), 10755 states have call successors, (10755), 2797 states have call predecessors, (10755), 2726 states have return successors, (10908), 10526 states have call predecessors, (10908), 10752 states have call successors, (10908) [2022-07-14 02:57:31,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42773 states to 42773 states and 57723 transitions. [2022-07-14 02:57:31,998 INFO L78 Accepts]: Start accepts. Automaton has 42773 states and 57723 transitions. Word has length 249 [2022-07-14 02:57:31,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:57:31,999 INFO L495 AbstractCegarLoop]: Abstraction has 42773 states and 57723 transitions. [2022-07-14 02:57:31,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 02:57:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 42773 states and 57723 transitions. [2022-07-14 02:57:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-14 02:57:32,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:57:32,003 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:57:32,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 02:57:32,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:57:32,224 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)] === [2022-07-14 02:57:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:57:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash 789674925, now seen corresponding path program 1 times [2022-07-14 02:57:32,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:57:32,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344495196] [2022-07-14 02:57:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:57:32,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:57:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:57:32,227 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) [2022-07-14 02:57:32,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 02:57:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:57:33,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 02:57:33,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:57:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2022-07-14 02:57:34,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:57:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 28 proven. 18 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2022-07-14 02:57:35,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:57:35,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344495196] [2022-07-14 02:57:35,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344495196] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:57:35,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:57:35,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-14 02:57:35,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122443600] [2022-07-14 02:57:35,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:57:35,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 02:57:35,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:57:35,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 02:57:35,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-14 02:57:35,870 INFO L87 Difference]: Start difference. First operand 42773 states and 57723 transitions. Second operand has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2022-07-14 02:57:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:57:58,740 INFO L93 Difference]: Finished difference Result 85632 states and 115486 transitions. [2022-07-14 02:57:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-14 02:57:58,742 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) Word has length 272 [2022-07-14 02:57:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:57:59,042 INFO L225 Difference]: With dead ends: 85632 [2022-07-14 02:57:59,043 INFO L226 Difference]: Without dead ends: 85288 [2022-07-14 02:57:59,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-14 02:57:59,091 INFO L413 NwaCegarLoop]: 5886 mSDtfsCounter, 8533 mSDsluCounter, 67239 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 2110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8575 SdHoareTripleChecker+Valid, 73125 SdHoareTripleChecker+Invalid, 6052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2110 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-07-14 02:57:59,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8575 Valid, 73125 Invalid, 6052 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2110 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2022-07-14 02:57:59,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85288 states. [2022-07-14 02:58:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85288 to 85011. [2022-07-14 02:58:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85011 states, 58192 states have (on average 1.231664146274402) internal successors, (71673), 59206 states have internal predecessors, (71673), 21391 states have call successors, (21391), 5569 states have call predecessors, (21391), 5425 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-14 02:58:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85011 states to 85011 states and 114760 transitions. [2022-07-14 02:58:03,096 INFO L78 Accepts]: Start accepts. Automaton has 85011 states and 114760 transitions. Word has length 272 [2022-07-14 02:58:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:58:03,098 INFO L495 AbstractCegarLoop]: Abstraction has 85011 states and 114760 transitions. [2022-07-14 02:58:03,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2022-07-14 02:58:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 85011 states and 114760 transitions. [2022-07-14 02:58:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-14 02:58:03,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:58:03,102 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:58:03,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 02:58:03,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:58:03,316 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)] === [2022-07-14 02:58:03,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:58:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -669373834, now seen corresponding path program 1 times [2022-07-14 02:58:03,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:58:03,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063047310] [2022-07-14 02:58:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:58:03,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:58:03,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:58:03,320 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) [2022-07-14 02:58:03,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 02:58:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:58:04,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:58:04,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:58:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-14 02:58:06,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:58:07,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-07-14 02:58:07,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:58:07,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063047310] [2022-07-14 02:58:07,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063047310] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:58:07,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:58:07,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:58:07,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211403894] [2022-07-14 02:58:07,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:58:07,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:58:07,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:58:07,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:58:07,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:58:07,053 INFO L87 Difference]: Start difference. First operand 85011 states and 114760 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:58:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:58:09,463 INFO L93 Difference]: Finished difference Result 85017 states and 114765 transitions. [2022-07-14 02:58:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:58:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2022-07-14 02:58:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:58:09,861 INFO L225 Difference]: With dead ends: 85017 [2022-07-14 02:58:09,861 INFO L226 Difference]: Without dead ends: 85015 [2022-07-14 02:58:10,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:58:10,090 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:58:10,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:58:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85015 states. [2022-07-14 02:58:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85015 to 85015. [2022-07-14 02:58:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85015 states, 58195 states have (on average 1.231652203797577) internal successors, (71676), 59209 states have internal predecessors, (71676), 21391 states have call successors, (21391), 5570 states have call predecessors, (21391), 5426 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696) [2022-07-14 02:58:13,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85015 states to 85015 states and 114763 transitions. [2022-07-14 02:58:13,811 INFO L78 Accepts]: Start accepts. Automaton has 85015 states and 114763 transitions. Word has length 254 [2022-07-14 02:58:13,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:58:13,811 INFO L495 AbstractCegarLoop]: Abstraction has 85015 states and 114763 transitions. [2022-07-14 02:58:13,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:58:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 85015 states and 114763 transitions. [2022-07-14 02:58:13,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-14 02:58:13,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:58:13,815 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:58:13,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 02:58:14,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:58:14,016 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)] === [2022-07-14 02:58:14,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:58:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1856695990, now seen corresponding path program 1 times [2022-07-14 02:58:14,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:58:14,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511644878] [2022-07-14 02:58:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:58:14,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:58:14,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:58:14,019 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) [2022-07-14 02:58:14,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 02:58:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:58:15,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:58:15,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:58:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-14 02:58:17,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:58:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-07-14 02:58:18,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:58:18,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511644878] [2022-07-14 02:58:18,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511644878] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:58:18,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:58:18,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 02:58:18,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250633410] [2022-07-14 02:58:18,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:58:18,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:58:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:58:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:58:18,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:58:18,010 INFO L87 Difference]: Start difference. First operand 85015 states and 114763 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 02:58:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:58:20,727 INFO L93 Difference]: Finished difference Result 85021 states and 114768 transitions. [2022-07-14 02:58:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:58:20,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2022-07-14 02:58:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:58:21,018 INFO L225 Difference]: With dead ends: 85021 [2022-07-14 02:58:21,018 INFO L226 Difference]: Without dead ends: 85019 [2022-07-14 02:58:21,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:58:21,063 INFO L413 NwaCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3098 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:58:21,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3098 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:58:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85019 states. [2022-07-14 02:58:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85019 to 85019. [2022-07-14 02:58:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85019 states, 58198 states have (on average 1.2316402625519778) internal successors, (71679), 59212 states have internal predecessors, (71679), 21391 states have call successors, (21391), 5571 states have call predecessors, (21391), 5427 states have return successors, (21696), 20923 states have call predecessors, (21696), 21384 states have call successors, (21696)