./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:07:05,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:07:05,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:07:05,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:07:05,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:07:05,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:07:05,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:07:05,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:07:05,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:07:05,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:07:05,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:07:05,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:07:05,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:07:05,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:07:05,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:07:05,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:07:05,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:07:05,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:07:05,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:07:05,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:07:05,861 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:07:05,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:07:05,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:07:05,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:07:05,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:07:05,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:07:05,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:07:05,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:07:05,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:07:05,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:07:05,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:07:05,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:07:05,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:07:05,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:07:05,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:07:05,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:07:05,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:07:05,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:07:05,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:07:05,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:07:05,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:07:05,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:07:05,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:07:05,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:07:05,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:07:05,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:07:05,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:07:05,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:07:05,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:07:05,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:07:05,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:07:05,922 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:07:05,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:07:05,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:07:05,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:07:05,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:07:05,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:07:05,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:07:05,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:07:05,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:07:05,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:07:05,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:07:05,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:07:05,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:07:05,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:07:05,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:07:05,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:07:05,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:07:05,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:07:05,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:07:05,925 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:07:05,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:07:05,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:07:05,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2022-07-21 15:07:06,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:07:06,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:07:06,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:07:06,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:07:06,225 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:07:06,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-21 15:07:06,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f37b5fa98/2f7f2c8f3bfa40879a74d2940d6fcc24/FLAG0280d19a8 [2022-07-21 15:07:07,079 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:07:07,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-21 15:07:07,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f37b5fa98/2f7f2c8f3bfa40879a74d2940d6fcc24/FLAG0280d19a8 [2022-07-21 15:07:07,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f37b5fa98/2f7f2c8f3bfa40879a74d2940d6fcc24 [2022-07-21 15:07:07,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:07:07,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:07:07,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:07:07,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:07:07,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:07:07,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:07:07" (1/1) ... [2022-07-21 15:07:07,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1820cf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:07, skipping insertion in model container [2022-07-21 15:07:07,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:07:07" (1/1) ... [2022-07-21 15:07:07,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:07:07,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:07:09,776 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-21 15:07:09,779 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-21 15:07:09,780 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-21 15:07:09,780 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-21 15:07:09,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:09,854 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:07:10,113 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9064] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 15:07:10,118 INFO L158 Benchmark]: Toolchain (without parser) took 2803.36ms. Allocated memory was 60.8MB in the beginning and 119.5MB in the end (delta: 58.7MB). Free memory was 36.4MB in the beginning and 41.3MB in the end (delta: -4.9MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2022-07-21 15:07:10,119 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 29.1MB in the beginning and 29.0MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 15:07:10,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2801.82ms. Allocated memory was 60.8MB in the beginning and 119.5MB in the end (delta: 58.7MB). Free memory was 36.3MB in the beginning and 41.3MB in the end (delta: -5.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2022-07-21 15:07:10,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 29.1MB in the beginning and 29.0MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2801.82ms. Allocated memory was 60.8MB in the beginning and 119.5MB in the end (delta: 58.7MB). Free memory was 36.3MB in the beginning and 41.3MB in the end (delta: -5.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9064] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9064]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:07:11,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:07:11,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:07:11,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:07:11,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:07:11,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:07:11,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:07:11,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:07:11,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:07:11,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:07:11,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:07:11,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:07:11,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:07:11,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:07:11,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:07:11,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:07:11,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:07:11,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:07:11,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:07:11,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:07:11,725 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:07:11,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:07:11,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:07:11,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:07:11,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:07:11,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:07:11,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:07:11,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:07:11,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:07:11,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:07:11,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:07:11,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:07:11,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:07:11,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:07:11,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:07:11,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:07:11,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:07:11,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:07:11,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:07:11,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:07:11,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:07:11,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:07:11,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 15:07:11,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:07:11,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:07:11,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:07:11,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:07:11,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:07:11,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:07:11,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:07:11,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:07:11,771 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:07:11,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:07:11,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:07:11,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:07:11,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:07:11,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:07:11,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 15:07:11,773 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 15:07:11,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 15:07:11,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:07:11,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:07:11,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:07:11,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:07:11,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:07:11,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:07:11,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:07:11,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:07:11,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:07:11,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:07:11,775 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 15:07:11,775 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 15:07:11,775 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:07:11,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:07:11,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:07:11,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 15:07:11,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2022-07-21 15:07:12,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:07:12,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:07:12,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:07:12,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:07:12,071 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:07:12,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-21 15:07:12,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f058e4af3/d3b10952b6774c2fa9f65e4e133ba1ea/FLAGb16f1c414 [2022-07-21 15:07:12,802 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:07:12,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-21 15:07:12,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f058e4af3/d3b10952b6774c2fa9f65e4e133ba1ea/FLAGb16f1c414 [2022-07-21 15:07:13,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f058e4af3/d3b10952b6774c2fa9f65e4e133ba1ea [2022-07-21 15:07:13,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:07:13,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:07:13,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:07:13,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:07:13,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:07:13,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:07:13" (1/1) ... [2022-07-21 15:07:13,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@927fe50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:13, skipping insertion in model container [2022-07-21 15:07:13,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:07:13" (1/1) ... [2022-07-21 15:07:13,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:07:13,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:07:15,844 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-21 15:07:15,887 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-21 15:07:15,931 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-21 15:07:16,655 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-21 15:07:16,658 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-21 15:07:16,658 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-21 15:07:16,659 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-21 15:07:16,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:16,778 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 15:07:16,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:07:17,202 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-21 15:07:17,203 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-21 15:07:17,203 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-21 15:07:17,203 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-21 15:07:17,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:17,234 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:07:17,578 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-21 15:07:17,579 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-21 15:07:17,580 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-21 15:07:17,582 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-21 15:07:17,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:17,809 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:07:17,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17 WrapperNode [2022-07-21 15:07:17,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:07:17,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:07:17,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:07:17,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:07:17,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:17,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,087 INFO L137 Inliner]: procedures = 537, calls = 3749, calls flagged for inlining = 276, calls inlined = 260, statements flattened = 6599 [2022-07-21 15:07:18,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:07:18,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:07:18,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:07:18,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:07:18,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:07:18,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:07:18,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:07:18,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:07:18,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (1/1) ... [2022-07-21 15:07:18,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:07:18,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:07:18,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 15:07:18,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 15:07:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-21 15:07:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-21 15:07:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-07-21 15:07:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-07-21 15:07:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-07-21 15:07:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-07-21 15:07:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-21 15:07:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-21 15:07:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 15:07:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 15:07:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:07:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:07:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:07:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:07:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-07-21 15:07:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-07-21 15:07:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-07-21 15:07:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-07-21 15:07:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:07:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:07:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 15:07:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 15:07:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 15:07:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 15:07:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 15:07:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 15:07:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-07-21 15:07:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-07-21 15:07:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-07-21 15:07:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-07-21 15:07:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-21 15:07:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-21 15:07:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:07:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:07:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-07-21 15:07:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-07-21 15:07:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-07-21 15:07:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-07-21 15:07:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-07-21 15:07:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-07-21 15:07:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:07:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:07:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 15:07:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 15:07:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2022-07-21 15:07:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2022-07-21 15:07:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:07:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-21 15:07:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-21 15:07:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 15:07:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 15:07:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 15:07:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 15:07:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-21 15:07:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-21 15:07:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-07-21 15:07:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-07-21 15:07:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-21 15:07:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-21 15:07:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2022-07-21 15:07:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2022-07-21 15:07:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 15:07:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 15:07:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 15:07:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 15:07:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-07-21 15:07:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-07-21 15:07:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:07:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:07:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-21 15:07:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-21 15:07:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 15:07:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 15:07:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-07-21 15:07:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-07-21 15:07:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 15:07:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 15:07:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 15:07:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 15:07:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 15:07:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 15:07:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 15:07:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 15:07:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-21 15:07:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-21 15:07:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-07-21 15:07:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-07-21 15:07:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-07-21 15:07:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-07-21 15:07:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 15:07:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 15:07:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 15:07:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 15:07:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-21 15:07:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-21 15:07:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-21 15:07:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-21 15:07:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-07-21 15:07:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-07-21 15:07:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:07:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:07:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-21 15:07:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-21 15:07:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:07:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 15:07:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 15:07:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 15:07:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 15:07:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:07:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 15:07:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 15:07:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-21 15:07:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-21 15:07:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-21 15:07:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-21 15:07:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:07:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:07:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 15:07:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 15:07:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:07:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 15:07:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 15:07:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:07:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:07:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 15:07:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-21 15:07:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-21 15:07:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2022-07-21 15:07:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2022-07-21 15:07:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-07-21 15:07:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-07-21 15:07:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 15:07:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 15:07:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-07-21 15:07:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-07-21 15:07:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-21 15:07:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-21 15:07:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2022-07-21 15:07:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2022-07-21 15:07:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-07-21 15:07:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-07-21 15:07:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-07-21 15:07:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-07-21 15:07:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 15:07:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-21 15:07:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-21 15:07:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:07:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:07:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 15:07:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-07-21 15:07:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:07:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:07:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:07:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-07-21 15:07:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-07-21 15:07:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:07:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:07:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2022-07-21 15:07:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2022-07-21 15:07:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-21 15:07:18,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-21 15:07:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-21 15:07:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-21 15:07:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-07-21 15:07:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-07-21 15:07:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-21 15:07:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-21 15:07:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 15:07:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 15:07:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 15:07:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 15:07:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-07-21 15:07:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-07-21 15:07:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:07:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:07:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 15:07:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 15:07:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-21 15:07:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-21 15:07:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:07:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-07-21 15:07:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 15:07:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 15:07:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:07:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:07:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-07-21 15:07:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-07-21 15:07:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-07-21 15:07:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-07-21 15:07:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-07-21 15:07:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-07-21 15:07:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2022-07-21 15:07:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2022-07-21 15:07:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-21 15:07:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-21 15:07:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-21 15:07:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-21 15:07:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 15:07:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 15:07:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-07-21 15:07:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-07-21 15:07:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 15:07:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 15:07:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-21 15:07:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-21 15:07:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 15:07:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 15:07:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-21 15:07:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-21 15:07:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:07:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:07:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-07-21 15:07:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-07-21 15:07:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-07-21 15:07:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-07-21 15:07:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2022-07-21 15:07:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2022-07-21 15:07:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-21 15:07:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-21 15:07:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-21 15:07:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-21 15:07:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:07:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:07:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-07-21 15:07:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-07-21 15:07:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-21 15:07:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-21 15:07:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-21 15:07:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-21 15:07:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-07-21 15:07:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-07-21 15:07:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-21 15:07:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 15:07:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 15:07:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-07-21 15:07:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-07-21 15:07:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:07:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:07:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-07-21 15:07:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-07-21 15:07:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-21 15:07:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-21 15:07:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-21 15:07:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-21 15:07:19,482 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:07:19,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:07:19,692 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:07:52,995 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 15:07:53,110 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:07:53,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:07:53,127 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 15:07:53,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:07:53 BoogieIcfgContainer [2022-07-21 15:07:53,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:07:53,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:07:53,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:07:53,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:07:53,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:07:13" (1/3) ... [2022-07-21 15:07:53,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d563343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:07:53, skipping insertion in model container [2022-07-21 15:07:53,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:17" (2/3) ... [2022-07-21 15:07:53,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d563343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:07:53, skipping insertion in model container [2022-07-21 15:07:53,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:07:53" (3/3) ... [2022-07-21 15:07:53,138 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-21 15:07:53,150 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:07:53,150 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 15:07:53,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:07:53,247 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@45d41f07, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4171a23d [2022-07-21 15:07:53,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 15:07:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 3088 states, 1764 states have (on average 1.251700680272109) internal successors, (2208), 1802 states have internal predecessors, (2208), 1209 states have call successors, (1209), 113 states have call predecessors, (1209), 112 states have return successors, (1201), 1184 states have call predecessors, (1201), 1201 states have call successors, (1201) [2022-07-21 15:07:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-07-21 15:07:53,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:07:53,296 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:07:53,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:07:53,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:07:53,302 INFO L85 PathProgramCache]: Analyzing trace with hash 978317410, now seen corresponding path program 1 times [2022-07-21 15:07:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:07:53,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166639005] [2022-07-21 15:07:53,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:07:53,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:07:53,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:07:53,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:07:53,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 15:08:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:08:00,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:08:00,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:08:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-07-21 15:08:01,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:08:01,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:08:01,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166639005] [2022-07-21 15:08:01,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166639005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:08:01,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:08:01,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:08:01,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737859445] [2022-07-21 15:08:01,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:08:01,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:08:01,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:08:01,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:08:01,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:08:01,071 INFO L87 Difference]: Start difference. First operand has 3088 states, 1764 states have (on average 1.251700680272109) internal successors, (2208), 1802 states have internal predecessors, (2208), 1209 states have call successors, (1209), 113 states have call predecessors, (1209), 112 states have return successors, (1201), 1184 states have call predecessors, (1201), 1201 states have call successors, (1201) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 15:08:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:08:01,999 INFO L93 Difference]: Finished difference Result 9016 states and 13606 transitions. [2022-07-21 15:08:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:08:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 424 [2022-07-21 15:08:02,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:08:02,085 INFO L225 Difference]: With dead ends: 9016 [2022-07-21 15:08:02,085 INFO L226 Difference]: Without dead ends: 5991 [2022-07-21 15:08:02,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:08:02,129 INFO L413 NwaCegarLoop]: 5753 mSDtfsCounter, 4395 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4395 SdHoareTripleChecker+Valid, 10307 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:08:02,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4395 Valid, 10307 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:08:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-07-21 15:08:02,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5987. [2022-07-21 15:08:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5987 states, 3430 states have (on average 1.2486880466472303) internal successors, (4283), 3501 states have internal predecessors, (4283), 2334 states have call successors, (2334), 221 states have call predecessors, (2334), 220 states have return successors, (2330), 2296 states have call predecessors, (2330), 2330 states have call successors, (2330) [2022-07-21 15:08:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 8947 transitions. [2022-07-21 15:08:02,661 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 8947 transitions. Word has length 424 [2022-07-21 15:08:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:08:02,662 INFO L495 AbstractCegarLoop]: Abstraction has 5987 states and 8947 transitions. [2022-07-21 15:08:02,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 15:08:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 8947 transitions. [2022-07-21 15:08:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-07-21 15:08:02,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:08:02,670 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:08:02,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 15:08:02,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:08:02,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:08:02,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:08:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -548436740, now seen corresponding path program 1 times [2022-07-21 15:08:02,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:08:02,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671385613] [2022-07-21 15:08:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:08:02,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:08:02,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:08:02,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:08:02,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 15:08:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:08:09,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 3775 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:08:09,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:08:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-07-21 15:08:10,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:08:10,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:08:10,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671385613] [2022-07-21 15:08:10,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671385613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:08:10,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:08:10,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:08:10,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576435155] [2022-07-21 15:08:10,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:08:10,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:08:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:08:10,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:08:10,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:08:10,177 INFO L87 Difference]: Start difference. First operand 5987 states and 8947 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 15:08:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:08:11,020 INFO L93 Difference]: Finished difference Result 17497 states and 26217 transitions. [2022-07-21 15:08:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:08:11,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 425 [2022-07-21 15:08:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:08:11,129 INFO L225 Difference]: With dead ends: 17497 [2022-07-21 15:08:11,129 INFO L226 Difference]: Without dead ends: 11587 [2022-07-21 15:08:11,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:08:11,182 INFO L413 NwaCegarLoop]: 5775 mSDtfsCounter, 4263 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 10336 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:08:11,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 10336 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 15:08:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11587 states. [2022-07-21 15:08:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11587 to 11558. [2022-07-21 15:08:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11558 states, 6579 states have (on average 1.2479100167198662) internal successors, (8210), 6715 states have internal predecessors, (8210), 4543 states have call successors, (4543), 436 states have call predecessors, (4543), 433 states have return successors, (4585), 4462 states have call predecessors, (4585), 4539 states have call successors, (4585) [2022-07-21 15:08:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11558 states to 11558 states and 17338 transitions. [2022-07-21 15:08:11,871 INFO L78 Accepts]: Start accepts. Automaton has 11558 states and 17338 transitions. Word has length 425 [2022-07-21 15:08:11,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:08:11,873 INFO L495 AbstractCegarLoop]: Abstraction has 11558 states and 17338 transitions. [2022-07-21 15:08:11,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 15:08:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 11558 states and 17338 transitions. [2022-07-21 15:08:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-07-21 15:08:11,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:08:11,887 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:08:12,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 15:08:12,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:08:12,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:08:12,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:08:12,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2102311554, now seen corresponding path program 1 times [2022-07-21 15:08:12,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:08:12,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410019685] [2022-07-21 15:08:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:08:12,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:08:12,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:08:12,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:08:12,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 15:08:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:08:19,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 3876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:08:19,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:08:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 6015 trivial. 0 not checked. [2022-07-21 15:08:19,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:08:19,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:08:19,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410019685] [2022-07-21 15:08:19,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410019685] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:08:19,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:08:19,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:08:19,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522490516] [2022-07-21 15:08:19,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:08:19,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:08:19,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:08:19,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:08:19,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:08:19,519 INFO L87 Difference]: Start difference. First operand 11558 states and 17338 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:08:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:08:20,690 INFO L93 Difference]: Finished difference Result 23065 states and 34593 transitions. [2022-07-21 15:08:20,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:08:20,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 480 [2022-07-21 15:08:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:08:20,847 INFO L225 Difference]: With dead ends: 23065 [2022-07-21 15:08:20,848 INFO L226 Difference]: Without dead ends: 17235 [2022-07-21 15:08:20,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:08:20,909 INFO L413 NwaCegarLoop]: 8941 mSDtfsCounter, 4355 mSDsluCounter, 4559 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4355 SdHoareTripleChecker+Valid, 13500 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:08:20,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4355 Valid, 13500 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 15:08:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17235 states. [2022-07-21 15:08:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17235 to 17231. [2022-07-21 15:08:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17231 states, 9808 states have (on average 1.2483686786296901) internal successors, (12244), 10008 states have internal predecessors, (12244), 6772 states have call successors, (6772), 652 states have call predecessors, (6772), 648 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-21 15:08:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17231 states to 17231 states and 25853 transitions. [2022-07-21 15:08:22,034 INFO L78 Accepts]: Start accepts. Automaton has 17231 states and 25853 transitions. Word has length 480 [2022-07-21 15:08:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:08:22,035 INFO L495 AbstractCegarLoop]: Abstraction has 17231 states and 25853 transitions. [2022-07-21 15:08:22,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:08:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17231 states and 25853 transitions. [2022-07-21 15:08:22,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-07-21 15:08:22,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:08:22,049 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:08:22,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 15:08:22,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:08:22,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:08:22,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:08:22,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1961762944, now seen corresponding path program 1 times [2022-07-21 15:08:22,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:08:22,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492521782] [2022-07-21 15:08:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:08:22,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:08:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:08:22,277 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:08:22,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 15:08:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:08:29,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 3876 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:08:29,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:08:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2022-07-21 15:08:40,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:08:40,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:08:40,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492521782] [2022-07-21 15:08:40,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492521782] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:08:40,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:08:40,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:08:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575471841] [2022-07-21 15:08:40,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:08:40,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:08:40,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:08:40,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:08:40,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:08:40,306 INFO L87 Difference]: Start difference. First operand 17231 states and 25853 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-07-21 15:08:41,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:08:41,382 INFO L93 Difference]: Finished difference Result 17237 states and 25858 transitions. [2022-07-21 15:08:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:08:41,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 480 [2022-07-21 15:08:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:08:41,485 INFO L225 Difference]: With dead ends: 17237 [2022-07-21 15:08:41,485 INFO L226 Difference]: Without dead ends: 17235 [2022-07-21 15:08:41,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:08:41,503 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 4424 mSDsluCounter, 9154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 13737 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:08:41,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4425 Valid, 13737 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:08:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17235 states. [2022-07-21 15:08:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17235 to 17235. [2022-07-21 15:08:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17235 states, 9811 states have (on average 1.2482927326470288) internal successors, (12247), 10011 states have internal predecessors, (12247), 6772 states have call successors, (6772), 653 states have call predecessors, (6772), 649 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-21 15:08:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17235 states to 17235 states and 25856 transitions. [2022-07-21 15:08:42,586 INFO L78 Accepts]: Start accepts. Automaton has 17235 states and 25856 transitions. Word has length 480 [2022-07-21 15:08:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:08:42,587 INFO L495 AbstractCegarLoop]: Abstraction has 17235 states and 25856 transitions. [2022-07-21 15:08:42,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-07-21 15:08:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 17235 states and 25856 transitions. [2022-07-21 15:08:42,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-07-21 15:08:42,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:08:42,604 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:08:42,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 15:08:42,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:08:42,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:08:42,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:08:42,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1948428257, now seen corresponding path program 1 times [2022-07-21 15:08:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:08:42,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554486939] [2022-07-21 15:08:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:08:42,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:08:42,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:08:42,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:08:42,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 15:08:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:08:50,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 3883 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:08:50,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2022-07-21 15:09:01,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:09:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2022-07-21 15:09:04,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:04,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554486939] [2022-07-21 15:09:04,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554486939] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:09:04,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:09:04,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:09:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584916481] [2022-07-21 15:09:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:04,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:09:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:09:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:09:04,228 INFO L87 Difference]: Start difference. First operand 17235 states and 25856 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-07-21 15:09:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:05,367 INFO L93 Difference]: Finished difference Result 17241 states and 25861 transitions. [2022-07-21 15:09:05,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:09:05,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 485 [2022-07-21 15:09:05,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:05,482 INFO L225 Difference]: With dead ends: 17241 [2022-07-21 15:09:05,482 INFO L226 Difference]: Without dead ends: 17239 [2022-07-21 15:09:05,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:09:05,505 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:05,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4479 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:09:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17239 states. [2022-07-21 15:09:06,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17239 to 17239. [2022-07-21 15:09:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17239 states, 9814 states have (on average 1.2482168330955778) internal successors, (12250), 10014 states have internal predecessors, (12250), 6772 states have call successors, (6772), 654 states have call predecessors, (6772), 650 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-21 15:09:06,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17239 states to 17239 states and 25859 transitions. [2022-07-21 15:09:06,587 INFO L78 Accepts]: Start accepts. Automaton has 17239 states and 25859 transitions. Word has length 485 [2022-07-21 15:09:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:06,588 INFO L495 AbstractCegarLoop]: Abstraction has 17239 states and 25859 transitions. [2022-07-21 15:09:06,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-07-21 15:09:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 17239 states and 25859 transitions. [2022-07-21 15:09:06,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2022-07-21 15:09:06,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:06,601 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:09:06,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 15:09:06,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:09:06,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:06,816 INFO L85 PathProgramCache]: Analyzing trace with hash 653034144, now seen corresponding path program 1 times [2022-07-21 15:09:06,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:06,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867663800] [2022-07-21 15:09:06,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:06,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:06,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:09:06,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 15:09:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:14,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 3890 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:09:14,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2022-07-21 15:09:24,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:09:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2022-07-21 15:09:27,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:27,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867663800] [2022-07-21 15:09:27,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867663800] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:09:27,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:09:27,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:09:27,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801713270] [2022-07-21 15:09:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:27,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:09:27,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:27,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:09:27,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:09:27,265 INFO L87 Difference]: Start difference. First operand 17239 states and 25859 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-07-21 15:09:28,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:28,251 INFO L93 Difference]: Finished difference Result 17245 states and 25864 transitions. [2022-07-21 15:09:28,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:09:28,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 490 [2022-07-21 15:09:28,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:28,348 INFO L225 Difference]: With dead ends: 17245 [2022-07-21 15:09:28,349 INFO L226 Difference]: Without dead ends: 17243 [2022-07-21 15:09:28,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 973 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:09:28,370 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:28,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4478 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:09:28,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17243 states. [2022-07-21 15:09:29,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17243 to 17243. [2022-07-21 15:09:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17243 states, 9817 states have (on average 1.2481409799327696) internal successors, (12253), 10017 states have internal predecessors, (12253), 6772 states have call successors, (6772), 655 states have call predecessors, (6772), 651 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-21 15:09:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17243 states to 17243 states and 25862 transitions. [2022-07-21 15:09:29,308 INFO L78 Accepts]: Start accepts. Automaton has 17243 states and 25862 transitions. Word has length 490 [2022-07-21 15:09:29,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:29,308 INFO L495 AbstractCegarLoop]: Abstraction has 17243 states and 25862 transitions. [2022-07-21 15:09:29,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-07-21 15:09:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 17243 states and 25862 transitions. [2022-07-21 15:09:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-07-21 15:09:29,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:29,325 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:09:29,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 15:09:29,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:09:29,552 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:29,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:29,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1281902907, now seen corresponding path program 1 times [2022-07-21 15:09:29,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:29,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517566431] [2022-07-21 15:09:29,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:29,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:29,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:29,558 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:09:29,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 15:09:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:37,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 3944 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:09:37,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 6037 trivial. 0 not checked. [2022-07-21 15:09:37,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:09:37,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:37,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517566431] [2022-07-21 15:09:37,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517566431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:09:37,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:09:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:09:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709623979] [2022-07-21 15:09:37,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:37,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:09:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:09:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:37,511 INFO L87 Difference]: Start difference. First operand 17243 states and 25862 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-07-21 15:09:38,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:38,683 INFO L93 Difference]: Finished difference Result 34467 states and 51682 transitions. [2022-07-21 15:09:38,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:09:38,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 506 [2022-07-21 15:09:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:39,036 INFO L225 Difference]: With dead ends: 34467 [2022-07-21 15:09:39,037 INFO L226 Difference]: Without dead ends: 22952 [2022-07-21 15:09:39,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:39,100 INFO L413 NwaCegarLoop]: 8953 mSDtfsCounter, 4386 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4386 SdHoareTripleChecker+Valid, 13514 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:39,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4386 Valid, 13514 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:09:39,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22952 states. [2022-07-21 15:09:40,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22952 to 22918. [2022-07-21 15:09:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22918 states, 13048 states have (on average 1.2483905579399142) internal successors, (16289), 13312 states have internal predecessors, (16289), 9001 states have call successors, (9001), 871 states have call predecessors, (9001), 866 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-21 15:09:40,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22918 states to 22918 states and 34379 transitions. [2022-07-21 15:09:40,382 INFO L78 Accepts]: Start accepts. Automaton has 22918 states and 34379 transitions. Word has length 506 [2022-07-21 15:09:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:40,383 INFO L495 AbstractCegarLoop]: Abstraction has 22918 states and 34379 transitions. [2022-07-21 15:09:40,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-07-21 15:09:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 22918 states and 34379 transitions. [2022-07-21 15:09:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-07-21 15:09:40,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:40,396 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:09:40,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 15:09:40,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:09:40,616 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:40,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:40,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1526343553, now seen corresponding path program 1 times [2022-07-21 15:09:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504950426] [2022-07-21 15:09:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:40,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:40,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:40,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:09:40,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 15:09:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:48,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 3897 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:09:48,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2022-07-21 15:09:58,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:10:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2022-07-21 15:10:01,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:01,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504950426] [2022-07-21 15:10:01,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504950426] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:10:01,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:10:01,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:10:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438002097] [2022-07-21 15:10:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:01,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:10:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:10:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:10:01,825 INFO L87 Difference]: Start difference. First operand 22918 states and 34379 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-21 15:10:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:03,101 INFO L93 Difference]: Finished difference Result 22924 states and 34384 transitions. [2022-07-21 15:10:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:10:03,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 495 [2022-07-21 15:10:03,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:03,301 INFO L225 Difference]: With dead ends: 22924 [2022-07-21 15:10:03,302 INFO L226 Difference]: Without dead ends: 22922 [2022-07-21 15:10:03,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:10:03,327 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:03,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:10:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22922 states. [2022-07-21 15:10:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22922 to 22922. [2022-07-21 15:10:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22922 states, 13051 states have (on average 1.2483334610374683) internal successors, (16292), 13315 states have internal predecessors, (16292), 9001 states have call successors, (9001), 872 states have call predecessors, (9001), 867 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-21 15:10:04,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22922 states to 22922 states and 34382 transitions. [2022-07-21 15:10:04,641 INFO L78 Accepts]: Start accepts. Automaton has 22922 states and 34382 transitions. Word has length 495 [2022-07-21 15:10:04,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:04,643 INFO L495 AbstractCegarLoop]: Abstraction has 22922 states and 34382 transitions. [2022-07-21 15:10:04,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-21 15:10:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 22922 states and 34382 transitions. [2022-07-21 15:10:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2022-07-21 15:10:04,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:04,661 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:04,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 15:10:04,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:10:04,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:10:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1759547968, now seen corresponding path program 1 times [2022-07-21 15:10:04,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:04,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874149889] [2022-07-21 15:10:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:04,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:04,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:04,885 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:10:04,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 15:10:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:12,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3904 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:10:12,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2022-07-21 15:10:21,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:10:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2022-07-21 15:10:24,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:24,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874149889] [2022-07-21 15:10:24,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874149889] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:10:24,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:10:24,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:10:24,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807323432] [2022-07-21 15:10:24,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:24,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:10:24,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:24,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:10:24,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:10:24,743 INFO L87 Difference]: Start difference. First operand 22922 states and 34382 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-21 15:10:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:25,986 INFO L93 Difference]: Finished difference Result 22928 states and 34387 transitions. [2022-07-21 15:10:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:10:25,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 500 [2022-07-21 15:10:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:26,150 INFO L225 Difference]: With dead ends: 22928 [2022-07-21 15:10:26,151 INFO L226 Difference]: Without dead ends: 22926 [2022-07-21 15:10:26,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:10:26,185 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4476 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:26,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4476 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:10:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22926 states. [2022-07-21 15:10:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22926 to 22926. [2022-07-21 15:10:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22926 states, 13054 states have (on average 1.248276390378428) internal successors, (16295), 13318 states have internal predecessors, (16295), 9001 states have call successors, (9001), 873 states have call predecessors, (9001), 868 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-21 15:10:27,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22926 states to 22926 states and 34385 transitions. [2022-07-21 15:10:27,542 INFO L78 Accepts]: Start accepts. Automaton has 22926 states and 34385 transitions. Word has length 500 [2022-07-21 15:10:27,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:27,543 INFO L495 AbstractCegarLoop]: Abstraction has 22926 states and 34385 transitions. [2022-07-21 15:10:27,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-21 15:10:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 22926 states and 34385 transitions. [2022-07-21 15:10:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-07-21 15:10:27,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:27,561 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:27,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 15:10:27,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:10:27,788 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:10:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:27,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289633, now seen corresponding path program 1 times [2022-07-21 15:10:27,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:27,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995008268] [2022-07-21 15:10:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:27,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:27,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:27,793 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:10:27,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 15:10:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:34,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 3911 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:10:34,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2022-07-21 15:10:45,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:10:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2022-07-21 15:10:48,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995008268] [2022-07-21 15:10:48,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995008268] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:10:48,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:10:48,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:10:48,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004374351] [2022-07-21 15:10:48,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:48,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:10:48,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:48,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:10:48,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:10:48,298 INFO L87 Difference]: Start difference. First operand 22926 states and 34385 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-21 15:10:49,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:49,515 INFO L93 Difference]: Finished difference Result 22932 states and 34390 transitions. [2022-07-21 15:10:49,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:10:49,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 505 [2022-07-21 15:10:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:49,629 INFO L225 Difference]: With dead ends: 22932 [2022-07-21 15:10:49,630 INFO L226 Difference]: Without dead ends: 22930 [2022-07-21 15:10:49,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1011 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:10:49,657 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:49,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4475 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:10:49,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22930 states. [2022-07-21 15:10:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22930 to 22930. [2022-07-21 15:10:50,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22930 states, 13057 states have (on average 1.248219345944704) internal successors, (16298), 13321 states have internal predecessors, (16298), 9001 states have call successors, (9001), 874 states have call predecessors, (9001), 869 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-21 15:10:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22930 states to 22930 states and 34388 transitions. [2022-07-21 15:10:51,151 INFO L78 Accepts]: Start accepts. Automaton has 22930 states and 34388 transitions. Word has length 505 [2022-07-21 15:10:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:51,155 INFO L495 AbstractCegarLoop]: Abstraction has 22930 states and 34388 transitions. [2022-07-21 15:10:51,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-21 15:10:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 22930 states and 34388 transitions. [2022-07-21 15:10:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-07-21 15:10:51,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:51,176 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:51,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 15:10:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:10:51,392 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:10:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1611620128, now seen corresponding path program 1 times [2022-07-21 15:10:51,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:51,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796537906] [2022-07-21 15:10:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:51,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:51,398 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:10:51,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 15:10:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:58,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 3918 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:10:58,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:11:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6226 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6214 trivial. 0 not checked. [2022-07-21 15:11:08,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:11:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6226 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6214 trivial. 0 not checked. [2022-07-21 15:11:11,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:11:11,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796537906] [2022-07-21 15:11:11,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796537906] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:11:11,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:11:11,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:11:11,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097686716] [2022-07-21 15:11:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:11:11,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:11:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:11:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:11:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:11:11,552 INFO L87 Difference]: Start difference. First operand 22930 states and 34388 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-21 15:11:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:11:12,766 INFO L93 Difference]: Finished difference Result 23552 states and 35037 transitions. [2022-07-21 15:11:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:11:12,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 510 [2022-07-21 15:11:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:11:12,852 INFO L225 Difference]: With dead ends: 23552 [2022-07-21 15:11:12,852 INFO L226 Difference]: Without dead ends: 23550 [2022-07-21 15:11:12,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:11:12,864 INFO L413 NwaCegarLoop]: 4604 mSDtfsCounter, 4257 mSDsluCounter, 9555 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4262 SdHoareTripleChecker+Valid, 14159 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:11:12,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4262 Valid, 14159 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:11:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23550 states. [2022-07-21 15:11:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23550 to 23550. [2022-07-21 15:11:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23550 states, 13508 states have (on average 1.2449659461060112) internal successors, (16817), 13772 states have internal predecessors, (16817), 9065 states have call successors, (9065), 979 states have call predecessors, (9065), 974 states have return successors, (9153), 8910 states have call predecessors, (9153), 9061 states have call successors, (9153) [2022-07-21 15:11:14,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23550 states to 23550 states and 35035 transitions. [2022-07-21 15:11:14,027 INFO L78 Accepts]: Start accepts. Automaton has 23550 states and 35035 transitions. Word has length 510 [2022-07-21 15:11:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:11:14,028 INFO L495 AbstractCegarLoop]: Abstraction has 23550 states and 35035 transitions. [2022-07-21 15:11:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-21 15:11:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23550 states and 35035 transitions. [2022-07-21 15:11:14,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-07-21 15:11:14,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:11:14,042 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:11:14,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-21 15:11:14,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:11:14,256 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:11:14,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:11:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash -846266049, now seen corresponding path program 1 times [2022-07-21 15:11:14,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:11:14,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545604141] [2022-07-21 15:11:14,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:11:14,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:11:14,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:11:14,260 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:11:14,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 15:11:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:11:20,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 3925 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:11:20,574 INFO L286 TraceCheckSpWp]: Computing forward predicates...