./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.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-usb-dev_drivers-net-ethernet-atheros-alx-alx.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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:09:58,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:09:58,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:09:58,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:09:58,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:09:58,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:09:58,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:09:58,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:09:58,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:09:58,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:09:58,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:09:58,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:09:58,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:09:58,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:09:58,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:09:58,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:09:58,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:09:58,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:09:58,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:09:58,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:09:58,721 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:09:58,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:09:58,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:09:58,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:09:58,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:09:58,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:09:58,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:09:58,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:09:58,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:09:58,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:09:58,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:09:58,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:09:58,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:09:58,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:09:58,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:09:58,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:09:58,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:09:58,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:09:58,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:09:58,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:09:58,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:09:58,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:09:58,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:09:58,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:09:58,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:09:58,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:09:58,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:09:58,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:09:58,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:09:58,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:09:58,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:09:58,768 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:09:58,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:09:58,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:09:58,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:09:58,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:09:58,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:09:58,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:09:58,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:09:58,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:09:58,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:09:58,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:09:58,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:09:58,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:09:58,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:09:58,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:09:58,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:09:58,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:09:58,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:09:58,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:09:58,772 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:09:58,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:09:58,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:09:58,772 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-07-21 15:09:59,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:09:59,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:09:59,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:09:59,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:09:59,028 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:09:59,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-21 15:09:59,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7419eaa20/d9eb8d809aa94a60a15d2e62f8863ccd/FLAG0fb2f0e25 [2022-07-21 15:09:59,801 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:09:59,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-21 15:09:59,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7419eaa20/d9eb8d809aa94a60a15d2e62f8863ccd/FLAG0fb2f0e25 [2022-07-21 15:09:59,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7419eaa20/d9eb8d809aa94a60a15d2e62f8863ccd [2022-07-21 15:09:59,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:09:59,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:09:59,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:09:59,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:09:59,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:09:59,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:09:59" (1/1) ... [2022-07-21 15:09:59,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d00b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:09:59, skipping insertion in model container [2022-07-21 15:09:59,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:09:59" (1/1) ... [2022-07-21 15:09:59,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:10:00,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:10:02,235 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-21 15:10:02,238 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-21 15:10:02,238 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-21 15:10:02,238 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-21 15:10:02,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:10:02,342 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:10:02,615 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: phy_val = (unsigned int )phy_val & 65027U [15260] 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 15:10:02,621 INFO L158 Benchmark]: Toolchain (without parser) took 2749.79ms. Allocated memory was 71.3MB in the beginning and 201.3MB in the end (delta: 130.0MB). Free memory was 44.4MB in the beginning and 108.4MB in the end (delta: -64.0MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. [2022-07-21 15:10:02,622 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 33.1MB in the beginning and 33.1MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 15:10:02,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2747.12ms. Allocated memory was 71.3MB in the beginning and 201.3MB in the end (delta: 130.0MB). Free memory was 44.2MB in the beginning and 108.4MB in the end (delta: -64.2MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. [2022-07-21 15:10:02,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 33.1MB in the beginning and 33.1MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2747.12ms. Allocated memory was 71.3MB in the beginning and 201.3MB in the end (delta: 130.0MB). Free memory was 44.2MB in the beginning and 108.4MB in the end (delta: -64.2MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: phy_val = (unsigned int )phy_val & 65027U [15260] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: phy_val = (unsigned int )phy_val & 65027U [15260]: 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:10:04,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:10:04,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:10:04,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:10:04,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:10:04,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:10:04,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:10:04,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:10:04,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:10:04,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:10:04,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:10:04,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:10:04,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:10:04,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:10:04,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:10:04,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:10:04,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:10:04,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:10:04,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:10:04,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:10:04,190 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:10:04,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:10:04,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:10:04,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:10:04,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:10:04,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:10:04,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:10:04,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:10:04,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:10:04,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:10:04,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:10:04,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:10:04,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:10:04,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:10:04,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:10:04,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:10:04,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:10:04,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:10:04,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:10:04,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:10:04,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:10:04,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:10:04,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 15:10:04,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:10:04,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:10:04,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:10:04,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:10:04,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:10:04,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:10:04,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:10:04,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:10:04,246 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:10:04,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:10:04,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:10:04,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:10:04,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:10:04,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:10:04,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 15:10:04,247 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 15:10:04,248 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 15:10:04,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:10:04,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:10:04,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:10:04,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:10:04,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:10:04,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:10:04,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:10:04,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:10:04,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:10:04,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:10:04,249 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 15:10:04,249 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 15:10:04,249 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:10:04,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:10:04,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:10:04,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 15:10:04,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-07-21 15:10:04,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:10:04,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:10:04,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:10:04,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:10:04,575 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:10:04,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-21 15:10:04,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77dab7c09/f7aa792d9f4e47b4865d0c42e4349773/FLAG305eb10ce [2022-07-21 15:10:05,288 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:10:05,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-21 15:10:05,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77dab7c09/f7aa792d9f4e47b4865d0c42e4349773/FLAG305eb10ce [2022-07-21 15:10:05,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77dab7c09/f7aa792d9f4e47b4865d0c42e4349773 [2022-07-21 15:10:05,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:10:05,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:10:05,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:10:05,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:10:05,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:10:05,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:10:05" (1/1) ... [2022-07-21 15:10:05,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651ddddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:05, skipping insertion in model container [2022-07-21 15:10:05,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:10:05" (1/1) ... [2022-07-21 15:10:05,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:10:05,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:10:08,196 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-21 15:10:08,198 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-21 15:10:08,199 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-21 15:10:08,199 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-21 15:10:08,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:10:08,254 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 15:10:08,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:10:08,624 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-21 15:10:08,625 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-21 15:10:08,626 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-21 15:10:08,626 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-21 15:10:08,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:10:08,712 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:10:08,981 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-21 15:10:08,981 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-21 15:10:08,982 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-21 15:10:08,985 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-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-21 15:10:08,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:10:09,186 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:10:09,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09 WrapperNode [2022-07-21 15:10:09,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:10:09,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:10:09,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:10:09,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:10:09,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,465 INFO L137 Inliner]: procedures = 557, calls = 4106, calls flagged for inlining = 313, calls inlined = 291, statements flattened = 8240 [2022-07-21 15:10:09,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:10:09,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:10:09,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:10:09,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:10:09,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:10:09,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:10:09,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:10:09,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:10:09,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (1/1) ... [2022-07-21 15:10:09,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:10:09,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:10:09,697 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 15:10:09,745 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 15:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-07-21 15:10:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-07-21 15:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:10:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-07-21 15:10:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-07-21 15:10:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:10:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-07-21 15:10:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-07-21 15:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-07-21 15:10:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-07-21 15:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-07-21 15:10:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-07-21 15:10:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-07-21 15:10:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-07-21 15:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-07-21 15:10:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-07-21 15:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 15:10:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 15:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-07-21 15:10:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-07-21 15:10:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 15:10:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 15:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 15:10:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 15:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-07-21 15:10:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-07-21 15:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-07-21 15:10:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-07-21 15:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-07-21 15:10:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-07-21 15:10:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 15:10:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 15:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-07-21 15:10:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-07-21 15:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-21 15:10:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-21 15:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-07-21 15:10:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-07-21 15:10:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 15:10:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 15:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:10:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 15:10:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 15:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 15:10:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 15:10:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-07-21 15:10:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-07-21 15:10:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-07-21 15:10:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-07-21 15:10:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:10:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:10:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 15:10:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 15:10:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-07-21 15:10:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-07-21 15:10:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-21 15:10:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-21 15:10:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:10:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 15:10:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 15:10:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-07-21 15:10:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-07-21 15:10:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 15:10:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 15:10:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 15:10:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-21 15:10:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-21 15:10:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-21 15:10:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-21 15:10:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-07-21 15:10:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-07-21 15:10:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-07-21 15:10:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-07-21 15:10:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-07-21 15:10:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 15:10:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 15:10:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 15:10:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 15:10:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-07-21 15:10:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-07-21 15:10:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-07-21 15:10:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-07-21 15:10:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 15:10:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 15:10:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-07-21 15:10:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-07-21 15:10:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 15:10:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 15:10:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-07-21 15:10:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-07-21 15:10:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:10:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:10:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 15:10:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 15:10:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 15:10:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 15:10:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 15:10:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 15:10:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 15:10:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 15:10:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-07-21 15:10:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-07-21 15:10:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-07-21 15:10:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-07-21 15:10:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 15:10:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 15:10:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 15:10:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 15:10:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-07-21 15:10:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-07-21 15:10:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-07-21 15:10:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-07-21 15:10:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 15:10:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 15:10:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:10:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 15:10:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 15:10:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-21 15:10:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-21 15:10:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-07-21 15:10:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-07-21 15:10:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-07-21 15:10:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-07-21 15:10:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-21 15:10:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-21 15:10:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-07-21 15:10:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-07-21 15:10:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:10:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 15:10:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 15:10:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:10:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:10:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 15:10:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-07-21 15:10:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-07-21 15:10:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 15:10:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-07-21 15:10:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-07-21 15:10:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:10:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:10:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 15:10:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-21 15:10:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-21 15:10:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-07-21 15:10:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-07-21 15:10:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-07-21 15:10:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-07-21 15:10:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-07-21 15:10:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-07-21 15:10:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-07-21 15:10:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-07-21 15:10:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-07-21 15:10:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-07-21 15:10:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 15:10:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 15:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 15:10:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 15:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 15:10:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 15:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-07-21 15:10:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-07-21 15:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 15:10:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 15:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-07-21 15:10:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-07-21 15:10:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-07-21 15:10:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-07-21 15:10:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 15:10:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 15:10:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 15:10:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-07-21 15:10:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-07-21 15:10:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:10:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 15:10:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-07-21 15:10:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:10:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 15:10:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:10:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:10:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:10:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-21 15:10:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-21 15:10:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-21 15:10:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-21 15:10:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 15:10:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 15:10:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 15:10:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-07-21 15:10:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-07-21 15:10:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-21 15:10:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-21 15:10:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 15:10:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 15:10:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-07-21 15:10:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-07-21 15:10:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 15:10:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 15:10:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-07-21 15:10:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-07-21 15:10:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-07-21 15:10:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-07-21 15:10:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:10:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:10:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-07-21 15:10:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-07-21 15:10:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-07-21 15:10:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-07-21 15:10:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-21 15:10:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-21 15:10:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 15:10:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 15:10:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-21 15:10:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-21 15:10:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-21 15:10:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-21 15:10:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-21 15:10:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-21 15:10:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 15:10:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 15:10:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:10:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 15:10:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 15:10:09,777 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-07-21 15:10:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-07-21 15:10:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-07-21 15:10:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-07-21 15:10:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-21 15:10:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-21 15:10:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-07-21 15:10:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-07-21 15:10:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 15:10:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-07-21 15:10:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:10:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-07-21 15:10:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-07-21 15:10:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-21 15:10:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-21 15:10:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-07-21 15:10:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-07-21 15:10:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 15:10:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 15:10:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 15:10:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 15:10:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 15:10:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 15:10:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:10:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:10:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-21 15:10:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-21 15:10:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:10:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:10:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 15:10:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 15:10:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-07-21 15:10:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-07-21 15:10:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 15:10:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 15:10:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 15:10:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 15:10:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 15:10:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 15:10:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-07-21 15:10:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-07-21 15:10:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 15:10:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 15:10:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-07-21 15:10:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-07-21 15:10:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 15:10:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 15:10:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-07-21 15:10:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-07-21 15:10:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 15:10:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 15:10:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 15:10:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 15:10:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:10:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:10:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-07-21 15:10:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-07-21 15:10:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-07-21 15:10:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-07-21 15:10:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-07-21 15:10:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-07-21 15:10:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-07-21 15:10:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-07-21 15:10:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 15:10:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 15:10:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-07-21 15:10:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-07-21 15:10:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 15:10:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 15:10:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-07-21 15:10:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-07-21 15:10:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-07-21 15:10:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-07-21 15:10:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-07-21 15:10:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-07-21 15:10:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-07-21 15:10:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-07-21 15:10:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-07-21 15:10:09,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-07-21 15:10:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-07-21 15:10:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-07-21 15:10:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-21 15:10:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-21 15:10:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-21 15:10:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-21 15:10:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:10:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:10:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 15:10:09,787 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 15:10:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-07-21 15:10:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-07-21 15:10:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-07-21 15:10:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-07-21 15:10:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-07-21 15:10:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-07-21 15:10:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-07-21 15:10:09,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-07-21 15:10:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 15:10:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 15:10:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-21 15:10:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-21 15:10:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 15:10:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 15:10:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:10:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:10:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-07-21 15:10:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-07-21 15:10:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-07-21 15:10:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-07-21 15:10:10,575 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:10:10,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:10:10,691 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:10:47,363 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 15:10:48,463 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:10:48,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:10:48,499 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-21 15:10:48,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:10:48 BoogieIcfgContainer [2022-07-21 15:10:48,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:10:48,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:10:48,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:10:48,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:10:48,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:10:05" (1/3) ... [2022-07-21 15:10:48,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bffd3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:10:48, skipping insertion in model container [2022-07-21 15:10:48,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:10:09" (2/3) ... [2022-07-21 15:10:48,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bffd3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:10:48, skipping insertion in model container [2022-07-21 15:10:48,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:10:48" (3/3) ... [2022-07-21 15:10:48,516 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-21 15:10:48,525 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:10:48,525 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 15:10:48,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:10:48,617 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@1a8a97e7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17fe541d [2022-07-21 15:10:48,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 15:10:48,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 3037 states, 2051 states have (on average 1.273037542662116) internal successors, (2611), 2096 states have internal predecessors, (2611), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) [2022-07-21 15:10:48,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-21 15:10:48,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:48,660 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:48,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:10:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1301196360, now seen corresponding path program 1 times [2022-07-21 15:10:48,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:48,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497842660] [2022-07-21 15:10:48,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:48,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:48,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:48,730 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 15:10:48,751 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 15:10:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:50,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2844 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:10:50,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-07-21 15:10:51,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:10:51,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:51,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497842660] [2022-07-21 15:10:51,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497842660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:10:51,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:10:51,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:10:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350953189] [2022-07-21 15:10:51,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:51,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:10:51,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:10:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:51,342 INFO L87 Difference]: Start difference. First operand has 3037 states, 2051 states have (on average 1.273037542662116) internal successors, (2611), 2096 states have internal predecessors, (2611), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 15:10:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:52,038 INFO L93 Difference]: Finished difference Result 8849 states and 12555 transitions. [2022-07-21 15:10:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:10:52,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2022-07-21 15:10:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:52,092 INFO L225 Difference]: With dead ends: 8849 [2022-07-21 15:10:52,092 INFO L226 Difference]: Without dead ends: 5835 [2022-07-21 15:10:52,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:52,118 INFO L413 NwaCegarLoop]: 4938 mSDtfsCounter, 4025 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4025 SdHoareTripleChecker+Valid, 9038 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:52,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4025 Valid, 9038 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 15:10:52,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2022-07-21 15:10:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5833. [2022-07-21 15:10:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5833 states, 3938 states have (on average 1.2600304723209752) internal successors, (4962), 4017 states have internal predecessors, (4962), 1580 states have call successors, (1580), 314 states have call predecessors, (1580), 313 states have return successors, (1577), 1555 states have call predecessors, (1577), 1577 states have call successors, (1577) [2022-07-21 15:10:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8119 transitions. [2022-07-21 15:10:52,471 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8119 transitions. Word has length 203 [2022-07-21 15:10:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:52,472 INFO L495 AbstractCegarLoop]: Abstraction has 5833 states and 8119 transitions. [2022-07-21 15:10:52,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 15:10:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8119 transitions. [2022-07-21 15:10:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-21 15:10:52,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:52,479 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:52,535 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 15:10:52,707 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 15:10:52,708 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:10:52,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:52,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1624803173, now seen corresponding path program 1 times [2022-07-21 15:10:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:52,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215078280] [2022-07-21 15:10:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:52,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:52,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:52,717 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 15:10:52,719 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 15:10:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:54,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:10:54,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-07-21 15:10:55,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:10:55,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:55,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215078280] [2022-07-21 15:10:55,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215078280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:10:55,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:10:55,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:10:55,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700119518] [2022-07-21 15:10:55,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:55,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:10:55,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:55,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:10:55,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:55,310 INFO L87 Difference]: Start difference. First operand 5833 states and 8119 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 15:10:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:56,322 INFO L93 Difference]: Finished difference Result 13679 states and 18993 transitions. [2022-07-21 15:10:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:10:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 224 [2022-07-21 15:10:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:56,372 INFO L225 Difference]: With dead ends: 13679 [2022-07-21 15:10:56,372 INFO L226 Difference]: Without dead ends: 7883 [2022-07-21 15:10:56,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 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 15:10:56,396 INFO L413 NwaCegarLoop]: 4803 mSDtfsCounter, 3400 mSDsluCounter, 4058 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:56,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3400 Valid, 8861 Invalid, 92 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 15:10:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7883 states. [2022-07-21 15:10:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7883 to 7874. [2022-07-21 15:10:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7874 states, 5330 states have (on average 1.2545966228893057) internal successors, (6687), 5435 states have internal predecessors, (6687), 2102 states have call successors, (2102), 442 states have call predecessors, (2102), 440 states have return successors, (2099), 2065 states have call predecessors, (2099), 2099 states have call successors, (2099) [2022-07-21 15:10:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 10888 transitions. [2022-07-21 15:10:56,656 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 10888 transitions. Word has length 224 [2022-07-21 15:10:56,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:56,658 INFO L495 AbstractCegarLoop]: Abstraction has 7874 states and 10888 transitions. [2022-07-21 15:10:56,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 15:10:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 10888 transitions. [2022-07-21 15:10:56,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-21 15:10:56,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:56,665 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:56,738 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 15:10:56,881 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 15:10:56,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:10:56,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1443645317, now seen corresponding path program 1 times [2022-07-21 15:10:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:56,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28523063] [2022-07-21 15:10:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:56,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:56,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:56,900 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 15:10:56,901 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 15:10:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:59,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:10:59,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2022-07-21 15:10:59,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:10:59,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:59,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28523063] [2022-07-21 15:10:59,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28523063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:10:59,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:10:59,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:10:59,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835262697] [2022-07-21 15:10:59,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:59,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:10:59,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:59,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:10:59,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:59,365 INFO L87 Difference]: Start difference. First operand 7874 states and 10888 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 15:11:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:11:00,333 INFO L93 Difference]: Finished difference Result 20905 states and 28913 transitions. [2022-07-21 15:11:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:11:00,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 238 [2022-07-21 15:11:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:11:00,408 INFO L225 Difference]: With dead ends: 20905 [2022-07-21 15:11:00,408 INFO L226 Difference]: Without dead ends: 13068 [2022-07-21 15:11:00,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 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 15:11:00,444 INFO L413 NwaCegarLoop]: 4906 mSDtfsCounter, 3948 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3948 SdHoareTripleChecker+Valid, 8990 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:11:00,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 8990 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:11:00,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13068 states. [2022-07-21 15:11:01,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13068 to 13055. [2022-07-21 15:11:01,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13055 states, 8835 states have (on average 1.2529711375212225) internal successors, (11070), 9019 states have internal predecessors, (11070), 3485 states have call successors, (3485), 736 states have call predecessors, (3485), 733 states have return successors, (3482), 3416 states have call predecessors, (3482), 3482 states have call successors, (3482) [2022-07-21 15:11:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13055 states to 13055 states and 18037 transitions. [2022-07-21 15:11:01,166 INFO L78 Accepts]: Start accepts. Automaton has 13055 states and 18037 transitions. Word has length 238 [2022-07-21 15:11:01,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:11:01,166 INFO L495 AbstractCegarLoop]: Abstraction has 13055 states and 18037 transitions. [2022-07-21 15:11:01,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 15:11:01,167 INFO L276 IsEmpty]: Start isEmpty. Operand 13055 states and 18037 transitions. [2022-07-21 15:11:01,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 15:11:01,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:11:01,197 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 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] [2022-07-21 15:11:01,272 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 15:11:01,411 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 15:11:01,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:11:01,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:11:01,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1877215274, now seen corresponding path program 1 times [2022-07-21 15:11:01,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:11:01,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114710605] [2022-07-21 15:11:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:11:01,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:11:01,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:11:01,428 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 15:11:01,429 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 15:11:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:11:03,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:11:03,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:11:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2022-07-21 15:11:03,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:11:03,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:11:03,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114710605] [2022-07-21 15:11:03,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114710605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:11:03,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:11:03,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:11:03,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777301044] [2022-07-21 15:11:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:11:03,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:11:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:11:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:11:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:11:03,858 INFO L87 Difference]: Start difference. First operand 13055 states and 18037 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 15:11:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:11:04,657 INFO L93 Difference]: Finished difference Result 34176 states and 47261 transitions. [2022-07-21 15:11:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:11:04,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 259 [2022-07-21 15:11:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:11:04,771 INFO L225 Difference]: With dead ends: 34176 [2022-07-21 15:11:04,771 INFO L226 Difference]: Without dead ends: 23497 [2022-07-21 15:11:04,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 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 15:11:04,830 INFO L413 NwaCegarLoop]: 7634 mSDtfsCounter, 3983 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3983 SdHoareTripleChecker+Valid, 11736 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:11:04,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3983 Valid, 11736 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 15:11:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23497 states. [2022-07-21 15:11:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23497 to 23495. [2022-07-21 15:11:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23495 states, 15911 states have (on average 1.2537238388536234) internal successors, (19948), 16231 states have internal predecessors, (19948), 6263 states have call successors, (6263), 1322 states have call predecessors, (6263), 1319 states have return successors, (6260), 6154 states have call predecessors, (6260), 6260 states have call successors, (6260) [2022-07-21 15:11:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23495 states to 23495 states and 32471 transitions. [2022-07-21 15:11:05,801 INFO L78 Accepts]: Start accepts. Automaton has 23495 states and 32471 transitions. Word has length 259 [2022-07-21 15:11:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:11:05,802 INFO L495 AbstractCegarLoop]: Abstraction has 23495 states and 32471 transitions. [2022-07-21 15:11:05,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-21 15:11:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 23495 states and 32471 transitions. [2022-07-21 15:11:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 15:11:05,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:11:05,810 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 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] [2022-07-21 15:11:05,881 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 15:11:06,035 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 15:11:06,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:11:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:11:06,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1743201768, now seen corresponding path program 1 times [2022-07-21 15:11:06,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:11:06,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544102636] [2022-07-21 15:11:06,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:11:06,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:11:06,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:11:06,048 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 15:11:06,057 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 15:11:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:11:08,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:11:08,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:11:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2022-07-21 15:11:11,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:11:11,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:11:11,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544102636] [2022-07-21 15:11:11,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544102636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:11:11,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:11:11,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:11:11,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264664088] [2022-07-21 15:11:11,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:11:11,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:11:11,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:11:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:11:11,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:11:11,738 INFO L87 Difference]: Start difference. First operand 23495 states and 32471 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 15:11:12,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:11:12,374 INFO L93 Difference]: Finished difference Result 23495 states and 32471 transitions. [2022-07-21 15:11:12,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:11:12,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 259 [2022-07-21 15:11:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:11:12,469 INFO L225 Difference]: With dead ends: 23495 [2022-07-21 15:11:12,470 INFO L226 Difference]: Without dead ends: 23440 [2022-07-21 15:11:12,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:11:12,494 INFO L413 NwaCegarLoop]: 4125 mSDtfsCounter, 4018 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 8250 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:11:12,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 8250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:11:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23440 states. [2022-07-21 15:11:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23440 to 23440. [2022-07-21 15:11:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23440 states, 15886 states have (on average 1.2533677451844392) internal successors, (19911), 16194 states have internal predecessors, (19911), 6236 states have call successors, (6236), 1317 states have call predecessors, (6236), 1317 states have return successors, (6236), 6141 states have call predecessors, (6236), 6236 states have call successors, (6236) [2022-07-21 15:11:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23440 states to 23440 states and 32383 transitions. [2022-07-21 15:11:13,305 INFO L78 Accepts]: Start accepts. Automaton has 23440 states and 32383 transitions. Word has length 259 [2022-07-21 15:11:13,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:11:13,305 INFO L495 AbstractCegarLoop]: Abstraction has 23440 states and 32383 transitions. [2022-07-21 15:11:13,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 15:11:13,306 INFO L276 IsEmpty]: Start isEmpty. Operand 23440 states and 32383 transitions. [2022-07-21 15:11:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-21 15:11:13,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:11:13,327 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 5, 5, 5, 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] [2022-07-21 15:11:13,387 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 15:11:13,551 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 15:11:13,551 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:11:13,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:11:13,552 INFO L85 PathProgramCache]: Analyzing trace with hash 539287825, now seen corresponding path program 1 times [2022-07-21 15:11:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:11:13,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467204640] [2022-07-21 15:11:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:11:13,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:11:13,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:11:13,556 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 15:11:13,557 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 15:11:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:11:15,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 3126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:11:15,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:11:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2022-07-21 15:11:16,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:11:16,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:11:16,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467204640] [2022-07-21 15:11:16,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467204640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:11:16,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:11:16,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:11:16,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815676747] [2022-07-21 15:11:16,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:11:16,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:11:16,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:11:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:11:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:11:16,420 INFO L87 Difference]: Start difference. First operand 23440 states and 32383 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-21 15:11:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:11:17,811 INFO L93 Difference]: Finished difference Result 54130 states and 74789 transitions. [2022-07-21 15:11:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:11:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 288 [2022-07-21 15:11:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:11:18,126 INFO L225 Difference]: With dead ends: 54130 [2022-07-21 15:11:18,127 INFO L226 Difference]: Without dead ends: 33066 [2022-07-21 15:11:18,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 286 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 15:11:18,200 INFO L413 NwaCegarLoop]: 7359 mSDtfsCounter, 3355 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 11387 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:11:18,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3355 Valid, 11387 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 15:11:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33066 states. [2022-07-21 15:11:19,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33066 to 33062. [2022-07-21 15:11:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 22420 states have (on average 1.2522301516503123) internal successors, (28075), 22852 states have internal predecessors, (28075), 8768 states have call successors, (8768), 1873 states have call predecessors, (8768), 1873 states have return successors, (8768), 8633 states have call predecessors, (8768), 8768 states have call successors, (8768) [2022-07-21 15:11:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 45611 transitions. [2022-07-21 15:11:19,247 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 45611 transitions. Word has length 288 [2022-07-21 15:11:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:11:19,248 INFO L495 AbstractCegarLoop]: Abstraction has 33062 states and 45611 transitions. [2022-07-21 15:11:19,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-21 15:11:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 45611 transitions. [2022-07-21 15:11:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-21 15:11:19,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:11:19,277 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 16, 16, 16, 16, 16, 16, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:11:19,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-21 15:11:19,490 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 15:11:19,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:11:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:11:19,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1170616974, now seen corresponding path program 1 times [2022-07-21 15:11:19,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:11:19,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040428132] [2022-07-21 15:11:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:11:19,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:11:19,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:11:19,499 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 15:11:19,536 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 15:11:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:11:21,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:11:21,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:11:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-21 15:11:21,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:11:21,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:11:21,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040428132] [2022-07-21 15:11:21,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040428132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:11:21,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:11:21,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:11:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457834118] [2022-07-21 15:11:21,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:11:21,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:11:21,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:11:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:11:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:11:21,889 INFO L87 Difference]: Start difference. First operand 33062 states and 45611 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-21 15:11:23,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:11:23,193 INFO L93 Difference]: Finished difference Result 78963 states and 108967 transitions. [2022-07-21 15:11:23,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:11:23,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 314 [2022-07-21 15:11:23,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:11:23,461 INFO L225 Difference]: With dead ends: 78963 [2022-07-21 15:11:23,462 INFO L226 Difference]: Without dead ends: 45892 [2022-07-21 15:11:23,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 312 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 15:11:23,539 INFO L413 NwaCegarLoop]: 8084 mSDtfsCounter, 3979 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 12164 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:11:23,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3979 Valid, 12164 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 15:11:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45892 states. [2022-07-21 15:11:24,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45892 to 45890. [2022-07-21 15:11:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45890 states, 31108 states have (on average 1.2527324160987527) internal successors, (38970), 31706 states have internal predecessors, (38970), 12182 states have call successors, (12182), 2599 states have call predecessors, (12182), 2599 states have return successors, (12182), 11998 states have call predecessors, (12182), 12182 states have call successors, (12182) [2022-07-21 15:11:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45890 states to 45890 states and 63334 transitions. [2022-07-21 15:11:25,200 INFO L78 Accepts]: Start accepts. Automaton has 45890 states and 63334 transitions. Word has length 314 [2022-07-21 15:11:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:11:25,201 INFO L495 AbstractCegarLoop]: Abstraction has 45890 states and 63334 transitions. [2022-07-21 15:11:25,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-21 15:11:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 45890 states and 63334 transitions. [2022-07-21 15:11:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-21 15:11:25,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:11:25,239 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:11:25,319 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 15:11:25,455 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 15:11:25,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:11:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:11:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash -160605202, now seen corresponding path program 1 times [2022-07-21 15:11:25,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:11:25,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679142433] [2022-07-21 15:11:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:11:25,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:11:25,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:11:25,472 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 15:11:25,499 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 15:11:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:11:27,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 15:11:27,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:11:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 384 proven. 3 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2022-07-21 15:11:29,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:11:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-07-21 15:11:31,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:11:31,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679142433] [2022-07-21 15:11:31,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679142433] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:11:31,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:11:31,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-21 15:11:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246380912] [2022-07-21 15:11:31,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:11:31,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 15:11:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:11:31,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 15:11:31,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-21 15:11:31,853 INFO L87 Difference]: Start difference. First operand 45890 states and 63334 transitions. Second operand has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) [2022-07-21 15:12:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:12:27,250 INFO L93 Difference]: Finished difference Result 117518 states and 162196 transitions. [2022-07-21 15:12:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 15:12:27,251 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) Word has length 338 [2022-07-21 15:12:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:12:27,604 INFO L225 Difference]: With dead ends: 117518 [2022-07-21 15:12:27,604 INFO L226 Difference]: Without dead ends: 71595 [2022-07-21 15:12:27,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 15:12:27,778 INFO L413 NwaCegarLoop]: 8376 mSDtfsCounter, 12116 mSDsluCounter, 99110 mSDsCounter, 0 mSdLazyCounter, 7731 mSolverCounterSat, 2278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12432 SdHoareTripleChecker+Valid, 107486 SdHoareTripleChecker+Invalid, 10009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2278 IncrementalHoareTripleChecker+Valid, 7731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:12:27,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12432 Valid, 107486 Invalid, 10009 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2278 Valid, 7731 Invalid, 0 Unknown, 0 Unchecked, 50.7s Time] [2022-07-21 15:12:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71595 states. [2022-07-21 15:12:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71595 to 45934. [2022-07-21 15:12:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45934 states, 31139 states have (on average 1.2525129259128425) internal successors, (39002), 31737 states have internal predecessors, (39002), 12184 states have call successors, (12184), 2610 states have call predecessors, (12184), 2610 states have return successors, (12184), 12000 states have call predecessors, (12184), 12184 states have call successors, (12184) [2022-07-21 15:12:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 63370 transitions. [2022-07-21 15:12:29,782 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 63370 transitions. Word has length 338 [2022-07-21 15:12:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:12:29,783 INFO L495 AbstractCegarLoop]: Abstraction has 45934 states and 63370 transitions. [2022-07-21 15:12:29,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) [2022-07-21 15:12:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 63370 transitions. [2022-07-21 15:12:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-21 15:12:29,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:12:29,809 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:12:29,888 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 15:12:30,035 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 15:12:30,035 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:12:30,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:12:30,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2131180950, now seen corresponding path program 1 times [2022-07-21 15:12:30,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:12:30,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199268307] [2022-07-21 15:12:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:12:30,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:12:30,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:12:30,040 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 15:12:30,041 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 15:12:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:12:32,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:12:32,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:12:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2022-07-21 15:12:32,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:12:32,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:12:32,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199268307] [2022-07-21 15:12:32,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199268307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:12:32,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:12:32,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:12:32,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41500527] [2022-07-21 15:12:32,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:12:32,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:12:32,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:12:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:12:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:12:32,268 INFO L87 Difference]: Start difference. First operand 45934 states and 63370 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-21 15:12:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:12:34,102 INFO L93 Difference]: Finished difference Result 104683 states and 144443 transitions. [2022-07-21 15:12:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:12:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 346 [2022-07-21 15:12:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:12:34,496 INFO L225 Difference]: With dead ends: 104683 [2022-07-21 15:12:34,496 INFO L226 Difference]: Without dead ends: 58764 [2022-07-21 15:12:34,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 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 15:12:34,623 INFO L413 NwaCegarLoop]: 8084 mSDtfsCounter, 3977 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 12164 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:12:34,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3977 Valid, 12164 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:12:34,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58764 states. [2022-07-21 15:12:36,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58764 to 45934. [2022-07-21 15:12:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45934 states, 31139 states have (on average 1.2524808118436688) internal successors, (39001), 31737 states have internal predecessors, (39001), 12184 states have call successors, (12184), 2610 states have call predecessors, (12184), 2610 states have return successors, (12184), 12000 states have call predecessors, (12184), 12184 states have call successors, (12184) [2022-07-21 15:12:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 63369 transitions. [2022-07-21 15:12:36,416 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 63369 transitions. Word has length 346 [2022-07-21 15:12:36,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:12:36,417 INFO L495 AbstractCegarLoop]: Abstraction has 45934 states and 63369 transitions. [2022-07-21 15:12:36,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-21 15:12:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 63369 transitions. [2022-07-21 15:12:36,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-21 15:12:36,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:12:36,439 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:12:36,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-21 15:12:36,667 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 15:12:36,668 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:12:36,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:12:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1923546600, now seen corresponding path program 1 times [2022-07-21 15:12:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:12:36,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047705370] [2022-07-21 15:12:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:12:36,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:12:36,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:12:36,672 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 15:12:36,678 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 15:12:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:12:38,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:12:38,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:12:39,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2022-07-21 15:12:39,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:12:39,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:12:39,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047705370] [2022-07-21 15:12:39,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047705370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:12:39,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:12:39,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:12:39,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434183472] [2022-07-21 15:12:39,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:12:39,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:12:39,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:12:39,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:12:39,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:12:39,117 INFO L87 Difference]: Start difference. First operand 45934 states and 63369 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 15:12:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:12:41,414 INFO L93 Difference]: Finished difference Result 112097 states and 154692 transitions. [2022-07-21 15:12:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:12:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 346 [2022-07-21 15:12:41,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:12:41,856 INFO L225 Difference]: With dead ends: 112097 [2022-07-21 15:12:41,856 INFO L226 Difference]: Without dead ends: 68539 [2022-07-21 15:12:41,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 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 15:12:42,000 INFO L413 NwaCegarLoop]: 8024 mSDtfsCounter, 3917 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3917 SdHoareTripleChecker+Valid, 12075 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:12:42,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3917 Valid, 12075 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 15:12:42,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68539 states. [2022-07-21 15:12:44,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68539 to 68531. [2022-07-21 15:12:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68531 states, 46454 states have (on average 1.2518620570887329) internal successors, (58154), 47354 states have internal predecessors, (58154), 18175 states have call successors, (18175), 3901 states have call predecessors, (18175), 3901 states have return successors, (18175), 17896 states have call predecessors, (18175), 18175 states have call successors, (18175) [2022-07-21 15:12:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68531 states to 68531 states and 94504 transitions. [2022-07-21 15:12:44,735 INFO L78 Accepts]: Start accepts. Automaton has 68531 states and 94504 transitions. Word has length 346 [2022-07-21 15:12:44,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:12:44,736 INFO L495 AbstractCegarLoop]: Abstraction has 68531 states and 94504 transitions. [2022-07-21 15:12:44,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 15:12:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 68531 states and 94504 transitions. [2022-07-21 15:12:44,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-21 15:12:44,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:12:44,792 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 16, 16, 16, 16, 16, 16, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:12:44,852 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 15:12:45,019 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 15:12:45,020 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:12:45,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:12:45,020 INFO L85 PathProgramCache]: Analyzing trace with hash -167582049, now seen corresponding path program 1 times [2022-07-21 15:12:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:12:45,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662345091] [2022-07-21 15:12:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:12:45,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:12:45,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:12:45,024 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 15:12:45,026 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 15:12:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:12:47,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:12:47,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:12:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-07-21 15:12:47,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:12:47,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:12:47,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662345091] [2022-07-21 15:12:47,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662345091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:12:47,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:12:47,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:12:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078044588] [2022-07-21 15:12:47,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:12:47,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:12:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:12:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:12:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:12:47,645 INFO L87 Difference]: Start difference. First operand 68531 states and 94504 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 15:12:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:12:51,164 INFO L93 Difference]: Finished difference Result 156117 states and 215290 transitions. [2022-07-21 15:12:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:12:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 363 [2022-07-21 15:12:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:12:51,835 INFO L225 Difference]: With dead ends: 156117 [2022-07-21 15:12:51,835 INFO L226 Difference]: Without dead ends: 87603 [2022-07-21 15:12:52,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 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 15:12:52,067 INFO L413 NwaCegarLoop]: 7476 mSDtfsCounter, 3370 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 11511 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:12:52,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 11511 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:12:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87603 states. [2022-07-21 15:12:54,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87603 to 87598. [2022-07-21 15:12:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87598 states, 59388 states have (on average 1.251246042971644) internal successors, (74309), 60535 states have internal predecessors, (74309), 23201 states have call successors, (23201), 5008 states have call predecessors, (23201), 5008 states have return successors, (23201), 22843 states have call predecessors, (23201), 23201 states have call successors, (23201) [2022-07-21 15:12:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87598 states to 87598 states and 120711 transitions. [2022-07-21 15:12:55,456 INFO L78 Accepts]: Start accepts. Automaton has 87598 states and 120711 transitions. Word has length 363 [2022-07-21 15:12:55,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:12:55,457 INFO L495 AbstractCegarLoop]: Abstraction has 87598 states and 120711 transitions. [2022-07-21 15:12:55,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 15:12:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 87598 states and 120711 transitions. [2022-07-21 15:12:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-21 15:12:55,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:12:55,486 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 16, 16, 16, 16, 16, 16, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:12:55,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 15:12:55,699 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 15:12:55,700 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:12:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:12:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash 725904289, now seen corresponding path program 1 times [2022-07-21 15:12:55,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:12:55,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370212608] [2022-07-21 15:12:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:12:55,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:12:55,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:12:55,705 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 15:12:55,706 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 15:12:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:12:58,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:12:58,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:13:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-07-21 15:13:02,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:13:02,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:13:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370212608] [2022-07-21 15:13:02,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370212608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:13:02,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:13:02,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:13:02,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526018977] [2022-07-21 15:13:02,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:13:02,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:13:02,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:13:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:13:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:13:02,347 INFO L87 Difference]: Start difference. First operand 87598 states and 120711 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-07-21 15:13:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:13:04,526 INFO L93 Difference]: Finished difference Result 87634 states and 120750 transitions. [2022-07-21 15:13:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:13:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 363 [2022-07-21 15:13:04,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:13:04,557 INFO L225 Difference]: With dead ends: 87634 [2022-07-21 15:13:04,557 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 15:13:04,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:13:04,806 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 3933 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 8194 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:13:04,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3933 Valid, 8194 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:13:04,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 15:13:04,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 15:13:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 15:13:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 15:13:04,829 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2022-07-21 15:13:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:13:04,830 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 15:13:04,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-07-21 15:13:04,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 15:13:04,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 15:13:04,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-21 15:13:04,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-21 15:13:04,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 15:13:05,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:13:05,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.