./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 6c24879c 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-?-6c24879 [2022-07-12 16:36:18,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:36:18,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:36:18,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:36:18,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:36:18,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:36:18,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:36:18,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:36:18,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:36:18,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:36:18,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:36:18,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:36:18,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:36:18,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:36:18,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:36:18,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:36:18,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:36:18,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:36:18,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:36:18,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:36:18,991 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:36:18,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:36:18,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:36:18,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:36:18,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:36:18,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:36:18,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:36:18,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:36:18,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:36:18,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:36:18,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:36:18,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:36:18,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:36:18,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:36:18,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:36:19,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:36:19,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:36:19,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:36:19,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:36:19,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:36:19,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:36:19,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:36:19,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:36:19,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:36:19,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:36:19,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:36:19,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:36:19,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:36:19,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:36:19,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:36:19,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:36:19,019 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:36:19,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:36:19,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:36:19,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:36:19,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:36:19,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:36:19,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:36:19,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:36:19,021 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:36:19,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:36:19,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:36:19,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:36:19,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:36:19,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:36:19,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:36:19,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:36:19,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:36:19,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:36:19,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:36:19,023 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:36:19,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:36:19,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:36:19,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-07-12 16:36:19,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:36:19,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:36:19,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:36:19,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:36:19,238 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:36:19,240 INFO L432 ainManager$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 [2022-07-12 16:36:19,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e416ad5e6/dd4d057cccf44218ad8adffb7c954859/FLAG9b2e2d02c [2022-07-12 16:36:19,929 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:36:19,930 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 [2022-07-12 16:36:19,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e416ad5e6/dd4d057cccf44218ad8adffb7c954859/FLAG9b2e2d02c [2022-07-12 16:36:20,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e416ad5e6/dd4d057cccf44218ad8adffb7c954859 [2022-07-12 16:36:20,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:36:20,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:36:20,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:36:20,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:36:20,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:36:20,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:36:20" (1/1) ... [2022-07-12 16:36:20,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7682ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:20, skipping insertion in model container [2022-07-12 16:36:20,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:36:20" (1/1) ... [2022-07-12 16:36:20,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:36:20,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:36:22,259 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] [2022-07-12 16:36:22,262 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] [2022-07-12 16:36:22,262 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] [2022-07-12 16:36:22,262 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] [2022-07-12 16:36:22,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:36:22,326 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:36:22,676 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) [2022-07-12 16:36:22,685 INFO L158 Benchmark]: Toolchain (without parser) took 2671.53ms. Allocated memory was 117.4MB in the beginning and 257.9MB in the end (delta: 140.5MB). Free memory was 70.4MB in the beginning and 180.9MB in the end (delta: -110.5MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2022-07-12 16:36:22,686 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:36:22,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2668.81ms. Allocated memory was 117.4MB in the beginning and 257.9MB in the end (delta: 140.5MB). Free memory was 70.2MB in the beginning and 180.9MB in the end (delta: -110.7MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2022-07-12 16:36:22,687 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 83.9MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2668.81ms. Allocated memory was 117.4MB in the beginning and 257.9MB in the end (delta: 140.5MB). Free memory was 70.2MB in the beginning and 180.9MB in the end (delta: -110.7MB). Peak memory consumption was 91.0MB. 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-?-6c24879 [2022-07-12 16:36:24,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:36:24,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:36:24,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:36:24,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:36:24,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:36:24,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:36:24,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:36:24,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:36:24,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:36:24,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:36:24,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:36:24,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:36:24,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:36:24,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:36:24,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:36:24,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:36:24,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:36:24,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:36:24,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:36:24,388 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:36:24,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:36:24,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:36:24,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:36:24,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:36:24,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:36:24,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:36:24,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:36:24,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:36:24,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:36:24,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:36:24,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:36:24,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:36:24,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:36:24,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:36:24,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:36:24,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:36:24,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:36:24,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:36:24,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:36:24,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:36:24,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:36:24,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:36:24,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:36:24,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:36:24,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:36:24,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:36:24,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:36:24,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:36:24,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:36:24,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:36:24,431 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:36:24,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:36:24,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:36:24,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:36:24,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:36:24,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:36:24,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:36:24,433 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:36:24,433 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:36:24,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:36:24,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:36:24,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:36:24,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:36:24,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:36:24,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:36:24,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:36:24,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:36:24,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:36:24,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:36:24,434 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:36:24,435 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:36:24,435 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:36:24,435 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:36:24,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:36:24,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:36:24,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-07-12 16:36:24,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:36:24,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:36:24,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:36:24,728 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:36:24,728 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:36:24,730 INFO L432 ainManager$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 [2022-07-12 16:36:24,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9aeed0f6/52c234593b534755bbbbcfe37a064436/FLAG9f0a87356 [2022-07-12 16:36:25,522 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:36:25,523 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 [2022-07-12 16:36:25,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9aeed0f6/52c234593b534755bbbbcfe37a064436/FLAG9f0a87356 [2022-07-12 16:36:25,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9aeed0f6/52c234593b534755bbbbcfe37a064436 [2022-07-12 16:36:25,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:36:25,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:36:25,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:36:25,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:36:25,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:36:25,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:36:25" (1/1) ... [2022-07-12 16:36:25,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527f1abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:25, skipping insertion in model container [2022-07-12 16:36:25,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:36:25" (1/1) ... [2022-07-12 16:36:25,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:36:25,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:36:28,398 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] [2022-07-12 16:36:28,400 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] [2022-07-12 16:36:28,401 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] [2022-07-12 16:36:28,401 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] [2022-07-12 16:36:28,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:36:28,504 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:36:28,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:36:28,911 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] [2022-07-12 16:36:28,911 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] [2022-07-12 16:36:28,912 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] [2022-07-12 16:36:28,916 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] [2022-07-12 16:36:28,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:36:28,954 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:36:29,306 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] [2022-07-12 16:36:29,307 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] [2022-07-12 16:36:29,308 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] [2022-07-12 16:36:29,310 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] [2022-07-12 16:36:29,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:36:29,537 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:36:29,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29 WrapperNode [2022-07-12 16:36:29,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:36:29,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:36:29,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:36:29,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:36:29,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:29,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:29,807 INFO L137 Inliner]: procedures = 557, calls = 4106, calls flagged for inlining = 313, calls inlined = 291, statements flattened = 8240 [2022-07-12 16:36:29,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:36:29,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:36:29,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:36:29,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:36:29,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:29,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:29,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:29,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:30,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:30,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:30,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:30,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:36:30,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:36:30,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:36:30,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:36:30,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (1/1) ... [2022-07-12 16:36:30,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:36:30,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:36:30,239 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) [2022-07-12 16:36:30,241 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 [2022-07-12 16:36:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-07-12 16:36:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-07-12 16:36:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:36:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:36:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-07-12 16:36:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-07-12 16:36:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:36:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:36:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-07-12 16:36:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-07-12 16:36:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-07-12 16:36:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-07-12 16:36:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-07-12 16:36:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-07-12 16:36:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-07-12 16:36:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-07-12 16:36:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-07-12 16:36:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-07-12 16:36:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 16:36:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 16:36:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-07-12 16:36:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-07-12 16:36:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 16:36:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 16:36:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 16:36:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 16:36:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-07-12 16:36:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-07-12 16:36:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-07-12 16:36:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-07-12 16:36:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-07-12 16:36:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-07-12 16:36:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 16:36:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 16:36:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-07-12 16:36:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-07-12 16:36:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 16:36:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 16:36:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-07-12 16:36:30,291 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-07-12 16:36:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 16:36:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 16:36:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:36:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:36:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 16:36:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 16:36:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 16:36:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 16:36:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-07-12 16:36:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-07-12 16:36:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-07-12 16:36:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-07-12 16:36:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:36:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:36:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 16:36:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 16:36:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-07-12 16:36:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-07-12 16:36:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-12 16:36:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-12 16:36:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:36:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 16:36:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 16:36:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-07-12 16:36:30,296 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-07-12 16:36:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:36:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:36:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 16:36:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-12 16:36:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-12 16:36:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-12 16:36:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-12 16:36:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-07-12 16:36:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-07-12 16:36:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-07-12 16:36:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-07-12 16:36:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-07-12 16:36:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:36:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:36:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 16:36:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 16:36:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-07-12 16:36:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-07-12 16:36:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-07-12 16:36:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-07-12 16:36:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 16:36:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 16:36:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-07-12 16:36:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-07-12 16:36:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 16:36:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 16:36:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-07-12 16:36:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-07-12 16:36:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:36:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:36:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 16:36:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 16:36:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:36:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:36:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:36:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:36:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:36:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:36:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-07-12 16:36:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-07-12 16:36:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-07-12 16:36:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-07-12 16:36:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:36:30,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:36:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:36:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:36:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-07-12 16:36:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-07-12 16:36:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-07-12 16:36:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-07-12 16:36:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 16:36:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 16:36:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:36:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 16:36:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 16:36:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-12 16:36:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-12 16:36:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-07-12 16:36:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-07-12 16:36:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-07-12 16:36:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-07-12 16:36:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-12 16:36:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-12 16:36:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-07-12 16:36:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-07-12 16:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 16:36:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 16:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:36:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 16:36:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 16:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 16:36:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-07-12 16:36:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-07-12 16:36:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 16:36:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-07-12 16:36:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-07-12 16:36:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:36:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-07-12 16:36:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-07-12 16:36:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:36:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:36:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:36:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-12 16:36:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-12 16:36:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-07-12 16:36:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-07-12 16:36:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-07-12 16:36:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-07-12 16:36:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-07-12 16:36:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-07-12 16:36:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-07-12 16:36:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-07-12 16:36:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-07-12 16:36:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-07-12 16:36:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 16:36:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 16:36:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-12 16:36:30,317 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-12 16:36:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:36:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:36:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-07-12 16:36:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-07-12 16:36:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 16:36:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 16:36:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-07-12 16:36:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-07-12 16:36:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-07-12 16:36:30,319 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-07-12 16:36:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 16:36:30,320 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 16:36:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:36:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-07-12 16:36:30,320 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-07-12 16:36:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:36:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 16:36:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-07-12 16:36:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:36:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 16:36:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:36:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:36:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:36:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-12 16:36:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-12 16:36:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-12 16:36:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-12 16:36:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 16:36:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 16:36:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 16:36:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-07-12 16:36:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-07-12 16:36:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-12 16:36:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-12 16:36:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-12 16:36:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-12 16:36:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-07-12 16:36:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-07-12 16:36:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:36:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:36:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-07-12 16:36:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-07-12 16:36:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-07-12 16:36:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-07-12 16:36:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:36:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:36:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-07-12 16:36:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-07-12 16:36:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-07-12 16:36:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-07-12 16:36:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-12 16:36:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-12 16:36:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:36:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:36:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-12 16:36:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-12 16:36:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-12 16:36:30,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-12 16:36:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-12 16:36:30,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-12 16:36:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 16:36:30,329 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 16:36:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:36:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 16:36:30,330 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 16:36:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-07-12 16:36:30,330 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-07-12 16:36:30,331 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-07-12 16:36:30,331 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-07-12 16:36:30,331 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 16:36:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 16:36:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-07-12 16:36:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-07-12 16:36:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 16:36:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 16:36:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-07-12 16:36:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-07-12 16:36:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:36:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 16:36:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:36:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:36:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:36:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:36:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-07-12 16:36:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-07-12 16:36:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-12 16:36:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-12 16:36:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-07-12 16:36:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-07-12 16:36:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 16:36:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 16:36:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-12 16:36:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-12 16:36:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 16:36:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 16:36:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:36:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:36:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-12 16:36:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-12 16:36:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:36:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:36:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 16:36:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 16:36:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-07-12 16:36:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-07-12 16:36:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 16:36:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 16:36:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 16:36:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 16:36:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:36:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:36:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-07-12 16:36:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-07-12 16:36:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 16:36:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 16:36:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-07-12 16:36:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-07-12 16:36:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:36:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:36:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-07-12 16:36:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-07-12 16:36:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:36:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:36:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:36:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 16:36:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:36:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:36:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-07-12 16:36:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-07-12 16:36:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-07-12 16:36:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-07-12 16:36:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-07-12 16:36:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-07-12 16:36:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-07-12 16:36:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-07-12 16:36:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 16:36:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 16:36:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-07-12 16:36:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-07-12 16:36:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 16:36:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 16:36:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-07-12 16:36:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-07-12 16:36:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-07-12 16:36:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-07-12 16:36:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-07-12 16:36:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-07-12 16:36:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-07-12 16:36:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-07-12 16:36:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-07-12 16:36:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-07-12 16:36:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-07-12 16:36:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-07-12 16:36:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-12 16:36:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-12 16:36:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-12 16:36:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-12 16:36:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:36:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:36:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 16:36:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 16:36:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-07-12 16:36:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-07-12 16:36:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-07-12 16:36:30,341 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-07-12 16:36:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-07-12 16:36:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-07-12 16:36:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-07-12 16:36:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-07-12 16:36:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 16:36:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 16:36:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 16:36:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 16:36:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 16:36:30,342 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 16:36:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:36:30,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:36:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-07-12 16:36:30,343 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-07-12 16:36:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-07-12 16:36:30,343 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-07-12 16:36:31,210 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:36:31,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:36:31,354 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:37:04,024 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:37:04,431 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:37:04,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:37:04,457 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-12 16:37:04,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:37:04 BoogieIcfgContainer [2022-07-12 16:37:04,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:37:04,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:37:04,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:37:04,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:37:04,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:36:25" (1/3) ... [2022-07-12 16:37:04,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ae3d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:37:04, skipping insertion in model container [2022-07-12 16:37:04,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:36:29" (2/3) ... [2022-07-12 16:37:04,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ae3d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:37:04, skipping insertion in model container [2022-07-12 16:37:04,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:37:04" (3/3) ... [2022-07-12 16:37:04,468 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-12 16:37:04,478 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:37:04,478 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 16:37:04,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:37:04,598 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@73b53067, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@73ded44a [2022-07-12 16:37:04,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 16:37:04,626 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) [2022-07-12 16:37:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-12 16:37:04,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:04,649 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] [2022-07-12 16:37:04,650 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] === [2022-07-12 16:37:04,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1301196360, now seen corresponding path program 1 times [2022-07-12 16:37:04,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:04,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772252130] [2022-07-12 16:37:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:04,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:04,676 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) [2022-07-12 16:37:04,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 16:37:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:07,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2844 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:37:07,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-07-12 16:37:07,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:07,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:07,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772252130] [2022-07-12 16:37:07,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772252130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:07,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:07,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:37:07,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341307729] [2022-07-12 16:37:07,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:07,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:37:07,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:07,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:37:07,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:07,348 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) [2022-07-12 16:37:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:07,939 INFO L93 Difference]: Finished difference Result 8849 states and 12555 transitions. [2022-07-12 16:37:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:37:07,942 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 [2022-07-12 16:37:07,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:07,991 INFO L225 Difference]: With dead ends: 8849 [2022-07-12 16:37:07,992 INFO L226 Difference]: Without dead ends: 5835 [2022-07-12 16:37:08,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:08,022 INFO L413 NwaCegarLoop]: 4938 mSDtfsCounter, 4025 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:37:08,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4025 Valid, 9038 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:37:08,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2022-07-12 16:37:08,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5833. [2022-07-12 16:37:08,306 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) [2022-07-12 16:37:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8119 transitions. [2022-07-12 16:37:08,343 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8119 transitions. Word has length 203 [2022-07-12 16:37:08,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:08,347 INFO L495 AbstractCegarLoop]: Abstraction has 5833 states and 8119 transitions. [2022-07-12 16:37:08,347 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) [2022-07-12 16:37:08,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8119 transitions. [2022-07-12 16:37:08,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-12 16:37:08,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:08,359 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] [2022-07-12 16:37:08,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 16:37:08,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:08,564 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] === [2022-07-12 16:37:08,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1624803173, now seen corresponding path program 1 times [2022-07-12 16:37:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:08,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268964744] [2022-07-12 16:37:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:08,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:08,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:08,571 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) [2022-07-12 16:37:08,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 16:37:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:11,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:37:11,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-07-12 16:37:11,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:11,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:11,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268964744] [2022-07-12 16:37:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268964744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:11,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:11,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:37:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424340005] [2022-07-12 16:37:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:11,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:37:11,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:11,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:37:11,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:11,758 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) [2022-07-12 16:37:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:12,662 INFO L93 Difference]: Finished difference Result 13679 states and 18993 transitions. [2022-07-12 16:37:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:37:12,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (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 [2022-07-12 16:37:12,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:12,731 INFO L225 Difference]: With dead ends: 13679 [2022-07-12 16:37:12,732 INFO L226 Difference]: Without dead ends: 7883 [2022-07-12 16:37:12,767 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 [2022-07-12 16:37:12,768 INFO L413 NwaCegarLoop]: 4803 mSDtfsCounter, 3400 mSDsluCounter, 4058 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:37:12,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3400 Valid, 8861 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 16:37:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7883 states. [2022-07-12 16:37:13,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7883 to 7874. [2022-07-12 16:37:13,103 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) [2022-07-12 16:37:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 10888 transitions. [2022-07-12 16:37:13,154 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 10888 transitions. Word has length 224 [2022-07-12 16:37:13,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:13,157 INFO L495 AbstractCegarLoop]: Abstraction has 7874 states and 10888 transitions. [2022-07-12 16:37:13,158 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) [2022-07-12 16:37:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 10888 transitions. [2022-07-12 16:37:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-12 16:37:13,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:13,166 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] [2022-07-12 16:37:13,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:37:13,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:13,388 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] === [2022-07-12 16:37:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:13,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1443645317, now seen corresponding path program 1 times [2022-07-12 16:37:13,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:13,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895121316] [2022-07-12 16:37:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:13,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:13,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:13,397 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) [2022-07-12 16:37:13,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 16:37:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:16,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:37:16,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2022-07-12 16:37:16,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:16,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895121316] [2022-07-12 16:37:16,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895121316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:16,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:16,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:37:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772193916] [2022-07-12 16:37:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:16,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:37:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:37:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:16,273 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) [2022-07-12 16:37:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:16,966 INFO L93 Difference]: Finished difference Result 20905 states and 28913 transitions. [2022-07-12 16:37:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:37:16,966 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 [2022-07-12 16:37:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:17,052 INFO L225 Difference]: With dead ends: 20905 [2022-07-12 16:37:17,052 INFO L226 Difference]: Without dead ends: 13068 [2022-07-12 16:37:17,089 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 [2022-07-12 16:37:17,092 INFO L413 NwaCegarLoop]: 4906 mSDtfsCounter, 3948 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:37:17,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 8990 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 16:37:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13068 states. [2022-07-12 16:37:17,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13068 to 13055. [2022-07-12 16:37:17,563 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) [2022-07-12 16:37:17,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13055 states to 13055 states and 18037 transitions. [2022-07-12 16:37:17,617 INFO L78 Accepts]: Start accepts. Automaton has 13055 states and 18037 transitions. Word has length 238 [2022-07-12 16:37:17,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:17,617 INFO L495 AbstractCegarLoop]: Abstraction has 13055 states and 18037 transitions. [2022-07-12 16:37:17,617 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) [2022-07-12 16:37:17,618 INFO L276 IsEmpty]: Start isEmpty. Operand 13055 states and 18037 transitions. [2022-07-12 16:37:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-12 16:37:17,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:17,625 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] [2022-07-12 16:37:17,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 16:37:17,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:17,839 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] === [2022-07-12 16:37:17,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:17,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1877215274, now seen corresponding path program 1 times [2022-07-12 16:37:17,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:17,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583059146] [2022-07-12 16:37:17,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:17,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:17,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:17,844 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) [2022-07-12 16:37:17,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 16:37:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:19,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:37:19,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2022-07-12 16:37:20,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:20,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:20,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583059146] [2022-07-12 16:37:20,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583059146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:20,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:20,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:37:20,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587808679] [2022-07-12 16:37:20,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:20,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:37:20,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:20,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:37:20,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:20,085 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) [2022-07-12 16:37:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:20,806 INFO L93 Difference]: Finished difference Result 34176 states and 47261 transitions. [2022-07-12 16:37:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:37:20,807 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 [2022-07-12 16:37:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:20,908 INFO L225 Difference]: With dead ends: 34176 [2022-07-12 16:37:20,909 INFO L226 Difference]: Without dead ends: 23497 [2022-07-12 16:37:20,952 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 [2022-07-12 16:37:20,955 INFO L413 NwaCegarLoop]: 7634 mSDtfsCounter, 3983 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-12 16:37:20,956 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] [2022-07-12 16:37:20,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23497 states. [2022-07-12 16:37:21,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23497 to 23495. [2022-07-12 16:37:21,709 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) [2022-07-12 16:37:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23495 states to 23495 states and 32471 transitions. [2022-07-12 16:37:21,817 INFO L78 Accepts]: Start accepts. Automaton has 23495 states and 32471 transitions. Word has length 259 [2022-07-12 16:37:21,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:21,819 INFO L495 AbstractCegarLoop]: Abstraction has 23495 states and 32471 transitions. [2022-07-12 16:37:21,819 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) [2022-07-12 16:37:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 23495 states and 32471 transitions. [2022-07-12 16:37:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-12 16:37:21,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:21,827 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] [2022-07-12 16:37:21,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 16:37:22,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:22,056 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] === [2022-07-12 16:37:22,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:22,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1743201768, now seen corresponding path program 1 times [2022-07-12 16:37:22,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:22,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699252861] [2022-07-12 16:37:22,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:22,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:22,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:22,061 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) [2022-07-12 16:37:22,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 16:37:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:24,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:37:24,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2022-07-12 16:37:25,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:25,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:25,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699252861] [2022-07-12 16:37:25,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699252861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:25,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:25,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:37:25,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407173610] [2022-07-12 16:37:25,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:25,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:37:25,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:25,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:37:25,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:37:25,411 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) [2022-07-12 16:37:26,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:26,112 INFO L93 Difference]: Finished difference Result 23495 states and 32471 transitions. [2022-07-12 16:37:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 16:37:26,113 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 [2022-07-12 16:37:26,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:26,202 INFO L225 Difference]: With dead ends: 23495 [2022-07-12 16:37:26,202 INFO L226 Difference]: Without dead ends: 23440 [2022-07-12 16:37:26,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:37:26,221 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 [2022-07-12 16:37:26,222 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] [2022-07-12 16:37:26,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23440 states. [2022-07-12 16:37:26,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23440 to 23440. [2022-07-12 16:37:26,892 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) [2022-07-12 16:37:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23440 states to 23440 states and 32383 transitions. [2022-07-12 16:37:26,975 INFO L78 Accepts]: Start accepts. Automaton has 23440 states and 32383 transitions. Word has length 259 [2022-07-12 16:37:26,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:26,976 INFO L495 AbstractCegarLoop]: Abstraction has 23440 states and 32383 transitions. [2022-07-12 16:37:26,976 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) [2022-07-12 16:37:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 23440 states and 32383 transitions. [2022-07-12 16:37:26,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-12 16:37:26,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:26,998 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] [2022-07-12 16:37:27,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 16:37:27,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:27,224 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] === [2022-07-12 16:37:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash 539287825, now seen corresponding path program 1 times [2022-07-12 16:37:27,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:27,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573534224] [2022-07-12 16:37:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:27,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:27,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:27,229 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) [2022-07-12 16:37:27,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 16:37:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:29,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 3126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:37:29,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2022-07-12 16:37:29,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:29,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:29,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573534224] [2022-07-12 16:37:29,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573534224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:29,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:29,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:37:29,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272768487] [2022-07-12 16:37:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:29,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:37:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:37:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:29,871 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) [2022-07-12 16:37:30,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:30,944 INFO L93 Difference]: Finished difference Result 54130 states and 74789 transitions. [2022-07-12 16:37:30,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:37:30,945 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 [2022-07-12 16:37:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:31,093 INFO L225 Difference]: With dead ends: 54130 [2022-07-12 16:37:31,093 INFO L226 Difference]: Without dead ends: 33066 [2022-07-12 16:37:31,194 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 [2022-07-12 16:37:31,195 INFO L413 NwaCegarLoop]: 7359 mSDtfsCounter, 3355 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:37:31,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3355 Valid, 11387 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 16:37:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33066 states. [2022-07-12 16:37:32,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33066 to 33062. [2022-07-12 16:37:32,245 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) [2022-07-12 16:37:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 45611 transitions. [2022-07-12 16:37:32,395 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 45611 transitions. Word has length 288 [2022-07-12 16:37:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:32,396 INFO L495 AbstractCegarLoop]: Abstraction has 33062 states and 45611 transitions. [2022-07-12 16:37:32,397 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) [2022-07-12 16:37:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 45611 transitions. [2022-07-12 16:37:32,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-12 16:37:32,426 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:32,427 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] [2022-07-12 16:37:32,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 16:37:32,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:32,646 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] === [2022-07-12 16:37:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:32,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1170616974, now seen corresponding path program 1 times [2022-07-12 16:37:32,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:32,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843781036] [2022-07-12 16:37:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:32,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:32,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:32,651 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) [2022-07-12 16:37:32,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 16:37:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:34,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:37:34,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-12 16:37:34,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:37:34,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:34,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843781036] [2022-07-12 16:37:34,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843781036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:37:34,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:37:34,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:37:34,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796678489] [2022-07-12 16:37:34,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:37:34,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:37:34,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:34,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:37:34,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:37:34,915 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) [2022-07-12 16:37:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:37:36,163 INFO L93 Difference]: Finished difference Result 78963 states and 108967 transitions. [2022-07-12 16:37:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:37:36,164 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 [2022-07-12 16:37:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:37:36,369 INFO L225 Difference]: With dead ends: 78963 [2022-07-12 16:37:36,370 INFO L226 Difference]: Without dead ends: 45892 [2022-07-12 16:37:36,480 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 [2022-07-12 16:37:36,480 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:37:36,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3979 Valid, 12164 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:37:36,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45892 states. [2022-07-12 16:37:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45892 to 45890. [2022-07-12 16:37:38,116 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) [2022-07-12 16:37:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45890 states to 45890 states and 63334 transitions. [2022-07-12 16:37:38,310 INFO L78 Accepts]: Start accepts. Automaton has 45890 states and 63334 transitions. Word has length 314 [2022-07-12 16:37:38,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:37:38,312 INFO L495 AbstractCegarLoop]: Abstraction has 45890 states and 63334 transitions. [2022-07-12 16:37:38,312 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) [2022-07-12 16:37:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 45890 states and 63334 transitions. [2022-07-12 16:37:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-12 16:37:38,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:37:38,348 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] [2022-07-12 16:37:38,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 16:37:38,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:37:38,568 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] === [2022-07-12 16:37:38,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:37:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash -160605202, now seen corresponding path program 1 times [2022-07-12 16:37:38,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:37:38,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177649942] [2022-07-12 16:37:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:37:38,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:37:38,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:37:38,574 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) [2022-07-12 16:37:38,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 16:37:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:40,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 16:37:40,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:37:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 384 proven. 3 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2022-07-12 16:37:41,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:37:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-07-12 16:37:42,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:37:42,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177649942] [2022-07-12 16:37:42,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177649942] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 16:37:42,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 16:37:42,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-12 16:37:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264318397] [2022-07-12 16:37:42,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 16:37:42,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 16:37:42,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:37:42,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 16:37:42,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-12 16:37:42,568 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) [2022-07-12 16:38:10,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:38:10,435 INFO L93 Difference]: Finished difference Result 117518 states and 162196 transitions. [2022-07-12 16:38:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 16:38:10,436 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 [2022-07-12 16:38:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:38:10,803 INFO L225 Difference]: With dead ends: 117518 [2022-07-12 16:38:10,803 INFO L226 Difference]: Without dead ends: 71595 [2022-07-12 16:38:10,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 16:38:10,960 INFO L413 NwaCegarLoop]: 8376 mSDtfsCounter, 12116 mSDsluCounter, 99110 mSDsCounter, 0 mSdLazyCounter, 7731 mSolverCounterSat, 2278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s 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, 24.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:38:10,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12432 Valid, 107486 Invalid, 10009 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2278 Valid, 7731 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2022-07-12 16:38:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71595 states. [2022-07-12 16:38:12,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71595 to 45934. [2022-07-12 16:38:12,955 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) [2022-07-12 16:38:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 63370 transitions. [2022-07-12 16:38:13,116 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 63370 transitions. Word has length 338 [2022-07-12 16:38:13,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:38:13,117 INFO L495 AbstractCegarLoop]: Abstraction has 45934 states and 63370 transitions. [2022-07-12 16:38:13,117 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) [2022-07-12 16:38:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 63370 transitions. [2022-07-12 16:38:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-12 16:38:13,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:38:13,309 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] [2022-07-12 16:38:13,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 16:38:13,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:38:13,532 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] === [2022-07-12 16:38:13,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:38:13,532 INFO L85 PathProgramCache]: Analyzing trace with hash 2131180950, now seen corresponding path program 1 times [2022-07-12 16:38:13,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:38:13,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165962211] [2022-07-12 16:38:13,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:38:13,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:38:13,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:38:13,537 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) [2022-07-12 16:38:13,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 16:38:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:38:15,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:38:15,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:38:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2022-07-12 16:38:15,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:38:15,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:38:15,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165962211] [2022-07-12 16:38:15,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165962211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:38:15,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:38:15,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:38:15,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372461288] [2022-07-12 16:38:15,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:38:15,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:38:15,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:38:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:38:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:38:15,734 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) [2022-07-12 16:38:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:38:17,598 INFO L93 Difference]: Finished difference Result 104683 states and 144443 transitions. [2022-07-12 16:38:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:38:17,599 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 [2022-07-12 16:38:17,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:38:17,817 INFO L225 Difference]: With dead ends: 104683 [2022-07-12 16:38:17,818 INFO L226 Difference]: Without dead ends: 58764 [2022-07-12 16:38:17,951 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 [2022-07-12 16:38:17,954 INFO L413 NwaCegarLoop]: 8084 mSDtfsCounter, 3977 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 16:38:17,954 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] [2022-07-12 16:38:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58764 states. [2022-07-12 16:38:19,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58764 to 45934. [2022-07-12 16:38:19,713 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) [2022-07-12 16:38:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 63369 transitions. [2022-07-12 16:38:19,940 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 63369 transitions. Word has length 346 [2022-07-12 16:38:19,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:38:19,941 INFO L495 AbstractCegarLoop]: Abstraction has 45934 states and 63369 transitions. [2022-07-12 16:38:19,941 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) [2022-07-12 16:38:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 63369 transitions. [2022-07-12 16:38:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-12 16:38:19,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:38:19,967 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] [2022-07-12 16:38:20,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 16:38:20,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:38:20,171 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] === [2022-07-12 16:38:20,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:38:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1923546600, now seen corresponding path program 1 times [2022-07-12 16:38:20,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:38:20,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540931170] [2022-07-12 16:38:20,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:38:20,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:38:20,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:38:20,175 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) [2022-07-12 16:38:20,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 16:38:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:38:22,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:38:22,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:38:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2022-07-12 16:38:22,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:38:22,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:38:22,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540931170] [2022-07-12 16:38:22,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540931170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:38:22,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:38:22,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:38:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437211215] [2022-07-12 16:38:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:38:22,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:38:22,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:38:22,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:38:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:38:22,562 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) [2022-07-12 16:38:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:38:24,788 INFO L93 Difference]: Finished difference Result 112097 states and 154692 transitions. [2022-07-12 16:38:24,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:38:24,789 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 [2022-07-12 16:38:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:38:25,116 INFO L225 Difference]: With dead ends: 112097 [2022-07-12 16:38:25,117 INFO L226 Difference]: Without dead ends: 68539 [2022-07-12 16:38:25,260 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 [2022-07-12 16:38:25,261 INFO L413 NwaCegarLoop]: 8024 mSDtfsCounter, 3917 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:38:25,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3917 Valid, 12075 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 16:38:25,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68539 states. [2022-07-12 16:38:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68539 to 68531. [2022-07-12 16:38:27,738 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) [2022-07-12 16:38:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68531 states to 68531 states and 94504 transitions. [2022-07-12 16:38:28,090 INFO L78 Accepts]: Start accepts. Automaton has 68531 states and 94504 transitions. Word has length 346 [2022-07-12 16:38:28,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:38:28,091 INFO L495 AbstractCegarLoop]: Abstraction has 68531 states and 94504 transitions. [2022-07-12 16:38:28,091 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) [2022-07-12 16:38:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 68531 states and 94504 transitions. [2022-07-12 16:38:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-12 16:38:28,122 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:38:28,122 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] [2022-07-12 16:38:28,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 16:38:28,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:38:28,336 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] === [2022-07-12 16:38:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:38:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -167582049, now seen corresponding path program 1 times [2022-07-12 16:38:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:38:28,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543667494] [2022-07-12 16:38:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:38:28,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:38:28,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:38:28,340 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) [2022-07-12 16:38:28,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 16:38:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:38:30,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:38:30,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:38:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-07-12 16:38:30,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:38:30,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:38:30,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543667494] [2022-07-12 16:38:30,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543667494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:38:30,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:38:30,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:38:30,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439736531] [2022-07-12 16:38:30,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:38:30,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:38:30,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:38:30,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:38:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:38:30,871 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) [2022-07-12 16:38:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:38:33,927 INFO L93 Difference]: Finished difference Result 156117 states and 215290 transitions. [2022-07-12 16:38:33,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:38:33,928 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 [2022-07-12 16:38:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:38:34,335 INFO L225 Difference]: With dead ends: 156117 [2022-07-12 16:38:34,336 INFO L226 Difference]: Without dead ends: 87603 [2022-07-12 16:38:34,545 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 [2022-07-12 16:38:34,545 INFO L413 NwaCegarLoop]: 7476 mSDtfsCounter, 3370 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:38:34,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 11511 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 16:38:34,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87603 states. [2022-07-12 16:38:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87603 to 87598. [2022-07-12 16:38:37,762 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) [2022-07-12 16:38:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87598 states to 87598 states and 120711 transitions. [2022-07-12 16:38:38,159 INFO L78 Accepts]: Start accepts. Automaton has 87598 states and 120711 transitions. Word has length 363 [2022-07-12 16:38:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:38:38,160 INFO L495 AbstractCegarLoop]: Abstraction has 87598 states and 120711 transitions. [2022-07-12 16:38:38,160 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) [2022-07-12 16:38:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 87598 states and 120711 transitions. [2022-07-12 16:38:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-12 16:38:38,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:38:38,190 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] [2022-07-12 16:38:38,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-12 16:38:38,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:38:38,404 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] === [2022-07-12 16:38:38,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:38:38,404 INFO L85 PathProgramCache]: Analyzing trace with hash 725904289, now seen corresponding path program 1 times [2022-07-12 16:38:38,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:38:38,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348109385] [2022-07-12 16:38:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:38:38,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:38:38,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:38:38,408 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) [2022-07-12 16:38:38,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 16:38:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:38:41,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:38:41,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:38:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-07-12 16:38:42,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:38:42,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:38:42,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348109385] [2022-07-12 16:38:42,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348109385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:38:42,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:38:42,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:38:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390958334] [2022-07-12 16:38:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:38:42,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:38:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:38:42,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:38:42,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:38:42,554 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) [2022-07-12 16:38:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:38:44,801 INFO L93 Difference]: Finished difference Result 87634 states and 120750 transitions. [2022-07-12 16:38:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 16:38:44,801 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 [2022-07-12 16:38:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:38:44,807 INFO L225 Difference]: With dead ends: 87634 [2022-07-12 16:38:44,807 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 16:38:44,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:38:44,989 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 [2022-07-12 16:38:44,989 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] [2022-07-12 16:38:44,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 16:38:44,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 16:38:44,990 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) [2022-07-12 16:38:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 16:38:45,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2022-07-12 16:38:45,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:38:45,008 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 16:38:45,009 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) [2022-07-12 16:38:45,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 16:38:45,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 16:38:45,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 16:38:45,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 16:38:45,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 16:38:45,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:38:45,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.