./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:33:11,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:33:11,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:33:11,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:33:11,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:33:11,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:33:11,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:33:11,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:33:11,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:33:11,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:33:11,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:33:11,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:33:11,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:33:11,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:33:11,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:33:11,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:33:11,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:33:11,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:33:11,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:33:11,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:33:11,880 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:33:11,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:33:11,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:33:11,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:33:11,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:33:11,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:33:11,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:33:11,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:33:11,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:33:11,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:33:11,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:33:11,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:33:11,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:33:11,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:33:11,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:33:11,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:33:11,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:33:11,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:33:11,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:33:11,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:33:11,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:33:11,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:33:11,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:33:11,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:33:11,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:33:11,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:33:11,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:33:11,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:33:11,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:33:11,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:33:11,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:33:11,918 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:33:11,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:33:11,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:33:11,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:33:11,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:33:11,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:33:11,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:33:11,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:33:11,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:33:11,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:33:11,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:33:11,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:33:11,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:33:11,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:33:11,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:33:11,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:33:11,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:33:11,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:33:11,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:33:11,921 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:33:11,921 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:33:11,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:33:11,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-07-12 14:33:12,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:33:12,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:33:12,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:33:12,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:33:12,098 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:33:12,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-12 14:33:12,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71521ea14/75c951be5e8a440886007c71a2ca4b1f/FLAG965c83c36 [2022-07-12 14:33:12,718 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:33:12,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-12 14:33:12,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71521ea14/75c951be5e8a440886007c71a2ca4b1f/FLAG965c83c36 [2022-07-12 14:33:12,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71521ea14/75c951be5e8a440886007c71a2ca4b1f [2022-07-12 14:33:12,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:33:12,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:33:12,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:33:12,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:33:12,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:33:12,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:33:12" (1/1) ... [2022-07-12 14:33:12,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6a6967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:12, skipping insertion in model container [2022-07-12 14:33:12,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:33:12" (1/1) ... [2022-07-12 14:33:12,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:33:12,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:33:14,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-12 14:33:14,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:33:14,377 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:33:14,637 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: data = data & 4294967171U [7881] 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: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 14:33:14,645 INFO L158 Benchmark]: Toolchain (without parser) took 1726.74ms. Allocated memory was 90.2MB in the beginning and 232.8MB in the end (delta: 142.6MB). Free memory was 63.6MB in the beginning and 128.8MB in the end (delta: -65.3MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2022-07-12 14:33:14,646 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:33:14,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1725.23ms. Allocated memory was 90.2MB in the beginning and 232.8MB in the end (delta: 142.6MB). Free memory was 63.6MB in the beginning and 128.8MB in the end (delta: -65.3MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2022-07-12 14:33:14,649 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 90.2MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1725.23ms. Allocated memory was 90.2MB in the beginning and 232.8MB in the end (delta: 142.6MB). Free memory was 63.6MB in the beginning and 128.8MB in the end (delta: -65.3MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: data = data & 4294967171U [7881] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294967171U [7881]: 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:33:16,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:33:16,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:33:16,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:33:16,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:33:16,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:33:16,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:33:16,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:33:16,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:33:16,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:33:16,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:33:16,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:33:16,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:33:16,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:33:16,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:33:16,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:33:16,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:33:16,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:33:16,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:33:16,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:33:16,113 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:33:16,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:33:16,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:33:16,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:33:16,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:33:16,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:33:16,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:33:16,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:33:16,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:33:16,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:33:16,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:33:16,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:33:16,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:33:16,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:33:16,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:33:16,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:33:16,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:33:16,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:33:16,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:33:16,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:33:16,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:33:16,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:33:16,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:33:16,140 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:33:16,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:33:16,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:33:16,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:33:16,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:33:16,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:33:16,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:33:16,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:33:16,143 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:33:16,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:33:16,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:33:16,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:33:16,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:33:16,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:33:16,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:33:16,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:33:16,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:33:16,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:33:16,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:33:16,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:33:16,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:33:16,146 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:33:16,146 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:33:16,146 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:33:16,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:33:16,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:33:16,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:33:16,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-07-12 14:33:16,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:33:16,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:33:16,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:33:16,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:33:16,418 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:33:16,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-12 14:33:16,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc88eaf0/faefc90b58854dcba1dabeb89ba6c80d/FLAG0b854ce7c [2022-07-12 14:33:17,100 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:33:17,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-12 14:33:17,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc88eaf0/faefc90b58854dcba1dabeb89ba6c80d/FLAG0b854ce7c [2022-07-12 14:33:17,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc88eaf0/faefc90b58854dcba1dabeb89ba6c80d [2022-07-12 14:33:17,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:33:17,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:33:17,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:33:17,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:33:17,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:33:17,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:33:17" (1/1) ... [2022-07-12 14:33:17,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bccd9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:17, skipping insertion in model container [2022-07-12 14:33:17,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:33:17" (1/1) ... [2022-07-12 14:33:17,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:33:17,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:33:19,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-12 14:33:19,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:33:19,090 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:33:19,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:33:19,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-12 14:33:19,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:33:19,385 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:33:19,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-12 14:33:19,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:33:19,853 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:33:19,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19 WrapperNode [2022-07-12 14:33:19,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:33:19,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:33:19,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:33:19,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:33:19,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:19,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,095 INFO L137 Inliner]: procedures = 371, calls = 3641, calls flagged for inlining = 134, calls inlined = 130, statements flattened = 6809 [2022-07-12 14:33:20,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:33:20,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:33:20,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:33:20,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:33:20,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:33:20,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:33:20,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:33:20,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:33:20,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (1/1) ... [2022-07-12 14:33:20,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:33:20,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:33:20,430 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 14:33:20,438 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 14:33:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 14:33:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 14:33:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-07-12 14:33:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-07-12 14:33:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:33:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-07-12 14:33:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-07-12 14:33:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-07-12 14:33:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-07-12 14:33:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 14:33:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 14:33:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-07-12 14:33:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-07-12 14:33:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-07-12 14:33:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-07-12 14:33:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-07-12 14:33:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:33:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:33:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:33:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:33:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-07-12 14:33:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-07-12 14:33:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:33:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:33:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-07-12 14:33:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-07-12 14:33:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-07-12 14:33:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-07-12 14:33:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-07-12 14:33:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-07-12 14:33:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-07-12 14:33:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-07-12 14:33:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-12 14:33:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-12 14:33:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-07-12 14:33:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-07-12 14:33:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-12 14:33:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-12 14:33:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-07-12 14:33:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-07-12 14:33:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-07-12 14:33:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-07-12 14:33:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-07-12 14:33:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-07-12 14:33:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-07-12 14:33:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-07-12 14:33:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-12 14:33:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-12 14:33:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-07-12 14:33:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-07-12 14:33:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 14:33:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 14:33:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:33:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:33:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-07-12 14:33:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-07-12 14:33:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-07-12 14:33:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-07-12 14:33:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-07-12 14:33:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-07-12 14:33:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-07-12 14:33:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-07-12 14:33:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-12 14:33:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-12 14:33:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-07-12 14:33:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-07-12 14:33:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-07-12 14:33:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-07-12 14:33:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:33:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:33:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-07-12 14:33:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-07-12 14:33:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 14:33:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 14:33:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-07-12 14:33:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-07-12 14:33:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-07-12 14:33:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-07-12 14:33:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-07-12 14:33:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-07-12 14:33:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-07-12 14:33:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-07-12 14:33:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-07-12 14:33:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-07-12 14:33:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-07-12 14:33:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-07-12 14:33:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-07-12 14:33:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-07-12 14:33:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:33:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 14:33:20,467 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 14:33:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-07-12 14:33:20,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-07-12 14:33:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-07-12 14:33:20,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-07-12 14:33:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-07-12 14:33:20,467 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-07-12 14:33:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:33:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 14:33:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 14:33:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-12 14:33:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-12 14:33:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 14:33:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 14:33:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-12 14:33:20,469 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-07-12 14:33:20,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:33:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-07-12 14:33:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-07-12 14:33:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:33:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-07-12 14:33:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-07-12 14:33:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-07-12 14:33:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-07-12 14:33:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:33:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:33:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:33:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-07-12 14:33:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-07-12 14:33:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-07-12 14:33:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-07-12 14:33:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 14:33:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 14:33:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 14:33:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 14:33:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 14:33:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 14:33:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 14:33:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 14:33:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-07-12 14:33:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-07-12 14:33:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-07-12 14:33:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-07-12 14:33:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 14:33:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 14:33:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-07-12 14:33:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-07-12 14:33:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-12 14:33:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-12 14:33:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-07-12 14:33:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-07-12 14:33:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-07-12 14:33:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-07-12 14:33:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-07-12 14:33:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-07-12 14:33:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-07-12 14:33:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-07-12 14:33:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-07-12 14:33:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-07-12 14:33:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 14:33:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 14:33:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-07-12 14:33:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-07-12 14:33:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-12 14:33:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-12 14:33:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-07-12 14:33:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-07-12 14:33:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-07-12 14:33:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-07-12 14:33:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-07-12 14:33:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-07-12 14:33:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-07-12 14:33:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-07-12 14:33:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:33:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:33:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-07-12 14:33:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-07-12 14:33:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-12 14:33:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-12 14:33:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-07-12 14:33:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-07-12 14:33:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-07-12 14:33:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-07-12 14:33:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:33:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:33:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-07-12 14:33:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-07-12 14:33:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-07-12 14:33:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-07-12 14:33:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-07-12 14:33:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-07-12 14:33:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:33:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:33:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-07-12 14:33:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-07-12 14:33:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-07-12 14:33:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-07-12 14:33:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-07-12 14:33:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-07-12 14:33:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-12 14:33:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:33:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-07-12 14:33:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-07-12 14:33:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:33:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:33:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-07-12 14:33:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-07-12 14:33:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-07-12 14:33:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-07-12 14:33:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:33:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-07-12 14:33:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-07-12 14:33:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-07-12 14:33:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-07-12 14:33:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-07-12 14:33:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 14:33:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 14:33:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-07-12 14:33:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-07-12 14:33:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:33:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-07-12 14:33:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-07-12 14:33:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-07-12 14:33:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-07-12 14:33:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-07-12 14:33:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-07-12 14:33:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-07-12 14:33:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-07-12 14:33:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-07-12 14:33:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-07-12 14:33:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-07-12 14:33:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-07-12 14:33:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-07-12 14:33:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-07-12 14:33:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-07-12 14:33:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-07-12 14:33:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-07-12 14:33:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-07-12 14:33:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-07-12 14:33:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-07-12 14:33:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-07-12 14:33:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-07-12 14:33:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 14:33:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 14:33:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-07-12 14:33:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-07-12 14:33:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-12 14:33:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-12 14:33:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-07-12 14:33:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-07-12 14:33:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 14:33:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 14:33:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-07-12 14:33:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-07-12 14:33:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 14:33:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 14:33:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-07-12 14:33:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-07-12 14:33:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-07-12 14:33:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-07-12 14:33:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 14:33:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 14:33:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:33:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-07-12 14:33:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-07-12 14:33:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:33:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:33:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-07-12 14:33:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-07-12 14:33:21,275 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:33:21,279 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:33:21,950 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:35:12,961 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:35:12,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:35:12,989 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:35:12,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:35:12 BoogieIcfgContainer [2022-07-12 14:35:12,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:35:12,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:35:12,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:35:12,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:35:12,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:33:17" (1/3) ... [2022-07-12 14:35:12,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a2a45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:35:12, skipping insertion in model container [2022-07-12 14:35:12,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:33:19" (2/3) ... [2022-07-12 14:35:12,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a2a45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:35:12, skipping insertion in model container [2022-07-12 14:35:12,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:35:12" (3/3) ... [2022-07-12 14:35:12,998 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-12 14:35:13,007 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:35:13,007 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:35:13,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:35:13,082 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@46fd3536, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27f6952f [2022-07-12 14:35:13,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:35:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) [2022-07-12 14:35:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-12 14:35:13,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:13,141 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:13,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:13,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:13,145 INFO L85 PathProgramCache]: Analyzing trace with hash 2034179201, now seen corresponding path program 1 times [2022-07-12 14:35:13,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:13,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775417830] [2022-07-12 14:35:13,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:13,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:13,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:13,159 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 14:35:13,161 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 14:35:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:14,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:14,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:14,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 14:35:14,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:14,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:14,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775417830] [2022-07-12 14:35:14,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775417830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:14,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:14,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:14,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518449538] [2022-07-12 14:35:14,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:14,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:14,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:14,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:14,659 INFO L87 Difference]: Start difference. First operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 14:35:15,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:15,161 INFO L93 Difference]: Finished difference Result 6667 states and 9956 transitions. [2022-07-12 14:35:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-07-12 14:35:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:15,200 INFO L225 Difference]: With dead ends: 6667 [2022-07-12 14:35:15,200 INFO L226 Difference]: Without dead ends: 4187 [2022-07-12 14:35:15,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:15,228 INFO L413 NwaCegarLoop]: 4663 mSDtfsCounter, 2503 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:15,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 8173 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:35:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2022-07-12 14:35:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 4183. [2022-07-12 14:35:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 2837 states have (on average 1.3249911878745153) internal successors, (3759), 2889 states have internal predecessors, (3759), 1117 states have call successors, (1117), 229 states have call predecessors, (1117), 228 states have return successors, (1116), 1108 states have call predecessors, (1116), 1116 states have call successors, (1116) [2022-07-12 14:35:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 5992 transitions. [2022-07-12 14:35:15,437 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 5992 transitions. Word has length 107 [2022-07-12 14:35:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:15,437 INFO L495 AbstractCegarLoop]: Abstraction has 4183 states and 5992 transitions. [2022-07-12 14:35:15,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 14:35:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 5992 transitions. [2022-07-12 14:35:15,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 14:35:15,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:15,446 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:15,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:35:15,659 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 14:35:15,659 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1327248420, now seen corresponding path program 1 times [2022-07-12 14:35:15,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:15,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540450724] [2022-07-12 14:35:15,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:15,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:15,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:15,663 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 14:35:15,665 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 14:35:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:17,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 2755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:17,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 14:35:18,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:18,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:18,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540450724] [2022-07-12 14:35:18,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540450724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:18,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:18,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:18,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136341987] [2022-07-12 14:35:18,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:18,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:18,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:18,066 INFO L87 Difference]: Start difference. First operand 4183 states and 5992 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 14:35:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:19,150 INFO L93 Difference]: Finished difference Result 10992 states and 15696 transitions. [2022-07-12 14:35:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:19,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2022-07-12 14:35:19,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:19,187 INFO L225 Difference]: With dead ends: 10992 [2022-07-12 14:35:19,188 INFO L226 Difference]: Without dead ends: 6817 [2022-07-12 14:35:19,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:19,208 INFO L413 NwaCegarLoop]: 5300 mSDtfsCounter, 3053 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 8740 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:19,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 8740 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 14:35:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6817 states. [2022-07-12 14:35:19,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6817 to 6814. [2022-07-12 14:35:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6814 states, 4608 states have (on average 1.3181423611111112) internal successors, (6074), 4695 states have internal predecessors, (6074), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1805 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-07-12 14:35:19,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6814 states to 6814 states and 9709 transitions. [2022-07-12 14:35:19,437 INFO L78 Accepts]: Start accepts. Automaton has 6814 states and 9709 transitions. Word has length 100 [2022-07-12 14:35:19,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:19,439 INFO L495 AbstractCegarLoop]: Abstraction has 6814 states and 9709 transitions. [2022-07-12 14:35:19,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 14:35:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6814 states and 9709 transitions. [2022-07-12 14:35:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-12 14:35:19,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:19,451 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 14:35:19,502 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 14:35:19,663 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 14:35:19,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:19,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:19,664 INFO L85 PathProgramCache]: Analyzing trace with hash -355677677, now seen corresponding path program 1 times [2022-07-12 14:35:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:19,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692605506] [2022-07-12 14:35:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:19,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:19,667 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 14:35:19,668 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 14:35:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:21,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 14:35:21,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 14:35:22,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:22,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:22,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692605506] [2022-07-12 14:35:22,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692605506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:22,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:22,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:35:22,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644788507] [2022-07-12 14:35:22,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:22,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:35:22,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:22,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:35:22,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:35:22,455 INFO L87 Difference]: Start difference. First operand 6814 states and 9709 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 14:35:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:22,986 INFO L93 Difference]: Finished difference Result 13609 states and 19397 transitions. [2022-07-12 14:35:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:35:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-07-12 14:35:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:23,018 INFO L225 Difference]: With dead ends: 13609 [2022-07-12 14:35:23,018 INFO L226 Difference]: Without dead ends: 6798 [2022-07-12 14:35:23,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:35:23,045 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 3 mSDsluCounter, 7015 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10525 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:23,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10525 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:35:23,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6798 states. [2022-07-12 14:35:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6798 to 6792. [2022-07-12 14:35:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3176470588235294) internal successors, (6048), 4677 states have internal predecessors, (6048), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-12 14:35:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9677 transitions. [2022-07-12 14:35:23,237 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9677 transitions. Word has length 130 [2022-07-12 14:35:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:23,238 INFO L495 AbstractCegarLoop]: Abstraction has 6792 states and 9677 transitions. [2022-07-12 14:35:23,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 14:35:23,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9677 transitions. [2022-07-12 14:35:23,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 14:35:23,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:23,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 14:35:23,313 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 14:35:23,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:35:23,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:23,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2011288551, now seen corresponding path program 1 times [2022-07-12 14:35:23,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:23,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368579651] [2022-07-12 14:35:23,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:23,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:23,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:23,463 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 14:35:23,464 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 14:35:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:24,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:24,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 14:35:24,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:24,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:24,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368579651] [2022-07-12 14:35:24,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368579651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:24,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:24,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592035915] [2022-07-12 14:35:24,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:24,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:24,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:24,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:24,752 INFO L87 Difference]: Start difference. First operand 6792 states and 9677 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 14:35:24,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:24,921 INFO L93 Difference]: Finished difference Result 13571 states and 19339 transitions. [2022-07-12 14:35:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:24,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2022-07-12 14:35:24,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:24,954 INFO L225 Difference]: With dead ends: 13571 [2022-07-12 14:35:24,955 INFO L226 Difference]: Without dead ends: 6792 [2022-07-12 14:35:24,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:24,983 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 0 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7018 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:24,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7018 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:35:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6792 states. [2022-07-12 14:35:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6792 to 6792. [2022-07-12 14:35:25,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3172113289760348) internal successors, (6046), 4677 states have internal predecessors, (6046), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-12 14:35:25,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9675 transitions. [2022-07-12 14:35:25,231 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9675 transitions. Word has length 140 [2022-07-12 14:35:25,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:25,231 INFO L495 AbstractCegarLoop]: Abstraction has 6792 states and 9675 transitions. [2022-07-12 14:35:25,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 14:35:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9675 transitions. [2022-07-12 14:35:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 14:35:25,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:25,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 14:35:25,273 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 14:35:25,463 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 14:35:25,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:25,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1245094171, now seen corresponding path program 1 times [2022-07-12 14:35:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:25,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154921476] [2022-07-12 14:35:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:25,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:25,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:25,467 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 14:35:25,469 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 14:35:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:26,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:26,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 14:35:26,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:26,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:26,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154921476] [2022-07-12 14:35:26,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154921476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:26,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:26,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:26,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571842619] [2022-07-12 14:35:26,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:26,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:26,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:26,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:26,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:26,824 INFO L87 Difference]: Start difference. First operand 6792 states and 9675 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 14:35:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:27,074 INFO L93 Difference]: Finished difference Result 13570 states and 19334 transitions. [2022-07-12 14:35:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:27,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2022-07-12 14:35:27,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:27,117 INFO L225 Difference]: With dead ends: 13570 [2022-07-12 14:35:27,117 INFO L226 Difference]: Without dead ends: 6791 [2022-07-12 14:35:27,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:27,137 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 0 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7015 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:27,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7015 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:35:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2022-07-12 14:35:27,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6786. [2022-07-12 14:35:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 4584 states have (on average 1.3171902268760907) internal successors, (6038), 4672 states have internal predecessors, (6038), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1801 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-12 14:35:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9667 transitions. [2022-07-12 14:35:27,401 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9667 transitions. Word has length 140 [2022-07-12 14:35:27,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:27,401 INFO L495 AbstractCegarLoop]: Abstraction has 6786 states and 9667 transitions. [2022-07-12 14:35:27,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 14:35:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9667 transitions. [2022-07-12 14:35:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-12 14:35:27,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:27,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:27,441 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 14:35:27,627 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 14:35:27,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash -82410969, now seen corresponding path program 1 times [2022-07-12 14:35:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:27,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249507895] [2022-07-12 14:35:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:27,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:27,631 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 14:35:27,631 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 14:35:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:28,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:28,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 14:35:30,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:30,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:30,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249507895] [2022-07-12 14:35:30,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249507895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:30,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:30,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:30,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148795928] [2022-07-12 14:35:30,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:30,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:30,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:30,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:30,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:30,221 INFO L87 Difference]: Start difference. First operand 6786 states and 9667 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 14:35:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:30,695 INFO L93 Difference]: Finished difference Result 16699 states and 23738 transitions. [2022-07-12 14:35:30,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:30,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 157 [2022-07-12 14:35:30,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:30,741 INFO L225 Difference]: With dead ends: 16699 [2022-07-12 14:35:30,741 INFO L226 Difference]: Without dead ends: 9928 [2022-07-12 14:35:30,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:30,767 INFO L413 NwaCegarLoop]: 5111 mSDtfsCounter, 3455 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3455 SdHoareTripleChecker+Valid, 7811 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:30,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3455 Valid, 7811 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:35:30,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9928 states. [2022-07-12 14:35:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9928 to 9917. [2022-07-12 14:35:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 6688 states have (on average 1.3132476076555024) internal successors, (8783), 6818 states have internal predecessors, (8783), 2644 states have call successors, (2644), 585 states have call predecessors, (2644), 584 states have return successors, (2643), 2626 states have call predecessors, (2643), 2643 states have call successors, (2643) [2022-07-12 14:35:31,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 14070 transitions. [2022-07-12 14:35:31,144 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 14070 transitions. Word has length 157 [2022-07-12 14:35:31,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:31,144 INFO L495 AbstractCegarLoop]: Abstraction has 9917 states and 14070 transitions. [2022-07-12 14:35:31,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 14:35:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 14070 transitions. [2022-07-12 14:35:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-12 14:35:31,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:31,155 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:31,189 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 14:35:31,379 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 14:35:31,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:31,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:31,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1553948647, now seen corresponding path program 1 times [2022-07-12 14:35:31,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:31,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044451298] [2022-07-12 14:35:31,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:31,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:31,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:31,383 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 14:35:31,383 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 14:35:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:33,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:33,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-12 14:35:34,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:34,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:34,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044451298] [2022-07-12 14:35:34,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044451298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:34,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:34,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:34,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722264990] [2022-07-12 14:35:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:34,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:34,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:34,725 INFO L87 Difference]: Start difference. First operand 9917 states and 14070 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 14:35:36,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:36,283 INFO L93 Difference]: Finished difference Result 23813 states and 33796 transitions. [2022-07-12 14:35:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:36,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 149 [2022-07-12 14:35:36,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:36,339 INFO L225 Difference]: With dead ends: 23813 [2022-07-12 14:35:36,339 INFO L226 Difference]: Without dead ends: 13911 [2022-07-12 14:35:36,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:36,373 INFO L413 NwaCegarLoop]: 5712 mSDtfsCounter, 3091 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 9149 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:36,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 9149 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 14:35:36,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13911 states. [2022-07-12 14:35:36,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13911 to 13903. [2022-07-12 14:35:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13903 states, 9401 states have (on average 1.3115625997234337) internal successors, (12330), 9583 states have internal predecessors, (12330), 3672 states have call successors, (3672), 830 states have call predecessors, (3672), 829 states have return successors, (3671), 3649 states have call predecessors, (3671), 3671 states have call successors, (3671) [2022-07-12 14:35:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13903 states to 13903 states and 19673 transitions. [2022-07-12 14:35:36,892 INFO L78 Accepts]: Start accepts. Automaton has 13903 states and 19673 transitions. Word has length 149 [2022-07-12 14:35:36,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:36,894 INFO L495 AbstractCegarLoop]: Abstraction has 13903 states and 19673 transitions. [2022-07-12 14:35:36,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 14:35:36,894 INFO L276 IsEmpty]: Start isEmpty. Operand 13903 states and 19673 transitions. [2022-07-12 14:35:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-12 14:35:36,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:36,903 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:36,962 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 14:35:37,119 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 14:35:37,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:37,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash 789903210, now seen corresponding path program 1 times [2022-07-12 14:35:37,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:37,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795503242] [2022-07-12 14:35:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:37,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:37,122 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 14:35:37,123 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 14:35:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:38,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:38,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 14:35:38,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:38,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:38,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795503242] [2022-07-12 14:35:38,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795503242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:38,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:38,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:38,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769667691] [2022-07-12 14:35:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:38,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:38,778 INFO L87 Difference]: Start difference. First operand 13903 states and 19673 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:39,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:39,459 INFO L93 Difference]: Finished difference Result 41629 states and 59371 transitions. [2022-07-12 14:35:39,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:39,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-07-12 14:35:39,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:39,589 INFO L225 Difference]: With dead ends: 41629 [2022-07-12 14:35:39,589 INFO L226 Difference]: Without dead ends: 27741 [2022-07-12 14:35:39,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:39,738 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 3484 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3484 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:39,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 7725 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:35:39,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27741 states. [2022-07-12 14:35:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27741 to 27738. [2022-07-12 14:35:40,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27738 states, 18756 states have (on average 1.3100341224141607) internal successors, (24571), 19120 states have internal predecessors, (24571), 7324 states have call successors, (7324), 1658 states have call predecessors, (7324), 1657 states have return successors, (7558), 7279 states have call predecessors, (7558), 7323 states have call successors, (7558) [2022-07-12 14:35:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27738 states to 27738 states and 39453 transitions. [2022-07-12 14:35:40,534 INFO L78 Accepts]: Start accepts. Automaton has 27738 states and 39453 transitions. Word has length 151 [2022-07-12 14:35:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:40,535 INFO L495 AbstractCegarLoop]: Abstraction has 27738 states and 39453 transitions. [2022-07-12 14:35:40,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 27738 states and 39453 transitions. [2022-07-12 14:35:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-12 14:35:40,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:40,545 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:40,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-12 14:35:40,749 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 14:35:40,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:40,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:40,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1527405581, now seen corresponding path program 1 times [2022-07-12 14:35:40,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:40,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999632439] [2022-07-12 14:35:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:40,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:40,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:40,752 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 14:35:40,753 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 14:35:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:42,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:42,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 14:35:42,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:42,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:42,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999632439] [2022-07-12 14:35:42,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999632439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:42,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:42,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461658352] [2022-07-12 14:35:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:42,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:42,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:42,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:42,504 INFO L87 Difference]: Start difference. First operand 27738 states and 39453 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:43,511 INFO L93 Difference]: Finished difference Result 69285 states and 99390 transitions. [2022-07-12 14:35:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:43,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-07-12 14:35:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:43,654 INFO L225 Difference]: With dead ends: 69285 [2022-07-12 14:35:43,654 INFO L226 Difference]: Without dead ends: 41562 [2022-07-12 14:35:43,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:43,744 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 3486 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3486 SdHoareTripleChecker+Valid, 7685 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:43,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3486 Valid, 7685 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:35:43,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41562 states. [2022-07-12 14:35:45,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41562 to 41559. [2022-07-12 14:35:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41559 states, 28113 states have (on average 1.3095720840892113) internal successors, (36816), 28659 states have internal predecessors, (36816), 10960 states have call successors, (10960), 2486 states have call predecessors, (10960), 2485 states have return successors, (11598), 10893 states have call predecessors, (11598), 10959 states have call successors, (11598) [2022-07-12 14:35:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41559 states to 41559 states and 59374 transitions. [2022-07-12 14:35:45,667 INFO L78 Accepts]: Start accepts. Automaton has 41559 states and 59374 transitions. Word has length 153 [2022-07-12 14:35:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:45,668 INFO L495 AbstractCegarLoop]: Abstraction has 41559 states and 59374 transitions. [2022-07-12 14:35:45,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 41559 states and 59374 transitions. [2022-07-12 14:35:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-12 14:35:45,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:45,677 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:45,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 14:35:45,891 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 14:35:45,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:45,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:45,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1975612218, now seen corresponding path program 1 times [2022-07-12 14:35:45,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:45,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435913644] [2022-07-12 14:35:45,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:45,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:45,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:45,895 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 14:35:45,915 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 14:35:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:47,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1809 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:47,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 14:35:47,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:47,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:47,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435913644] [2022-07-12 14:35:47,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435913644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:47,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:47,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:47,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146154494] [2022-07-12 14:35:47,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:47,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:47,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:47,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:47,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:47,654 INFO L87 Difference]: Start difference. First operand 41559 states and 59374 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:49,186 INFO L93 Difference]: Finished difference Result 96886 states and 139489 transitions. [2022-07-12 14:35:49,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:49,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-07-12 14:35:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:49,413 INFO L225 Difference]: With dead ends: 96886 [2022-07-12 14:35:49,413 INFO L226 Difference]: Without dead ends: 55342 [2022-07-12 14:35:49,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:49,559 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 3477 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3477 SdHoareTripleChecker+Valid, 7681 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:49,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3477 Valid, 7681 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:35:49,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55342 states. [2022-07-12 14:35:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55342 to 55339. [2022-07-12 14:35:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55339 states, 37445 states have (on average 1.3088796902123114) internal successors, (49011), 38173 states have internal predecessors, (49011), 14580 states have call successors, (14580), 3314 states have call predecessors, (14580), 3313 states have return successors, (15759), 14491 states have call predecessors, (15759), 14579 states have call successors, (15759) [2022-07-12 14:35:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55339 states to 55339 states and 79350 transitions. [2022-07-12 14:35:51,602 INFO L78 Accepts]: Start accepts. Automaton has 55339 states and 79350 transitions. Word has length 152 [2022-07-12 14:35:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:51,602 INFO L495 AbstractCegarLoop]: Abstraction has 55339 states and 79350 transitions. [2022-07-12 14:35:51,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 55339 states and 79350 transitions. [2022-07-12 14:35:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-12 14:35:51,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:51,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:51,645 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 14:35:51,827 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 14:35:51,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:51,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:51,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1793981039, now seen corresponding path program 1 times [2022-07-12 14:35:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:51,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004109952] [2022-07-12 14:35:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:51,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:51,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:51,831 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 14:35:51,833 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 14:35:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:35:53,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:35:53,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:35:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 14:35:53,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:35:53,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:35:53,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004109952] [2022-07-12 14:35:53,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004109952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:35:53,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:35:53,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:35:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001629968] [2022-07-12 14:35:53,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:35:53,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:35:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:35:53,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:35:53,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:53,866 INFO L87 Difference]: Start difference. First operand 55339 states and 79350 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:35:55,868 INFO L93 Difference]: Finished difference Result 122345 states and 175945 transitions. [2022-07-12 14:35:55,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:35:55,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2022-07-12 14:35:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:35:56,307 INFO L225 Difference]: With dead ends: 122345 [2022-07-12 14:35:56,308 INFO L226 Difference]: Without dead ends: 67021 [2022-07-12 14:35:56,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:35:56,492 INFO L413 NwaCegarLoop]: 4190 mSDtfsCounter, 3221 mSDsluCounter, 3504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 7694 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:35:56,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 7694 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:35:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67021 states. [2022-07-12 14:35:58,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67021 to 67018. [2022-07-12 14:35:58,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67018 states, 45355 states have (on average 1.3095358835850512) internal successors, (59394), 46238 states have internal predecessors, (59394), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-07-12 14:35:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67018 states to 67018 states and 96123 transitions. [2022-07-12 14:35:59,057 INFO L78 Accepts]: Start accepts. Automaton has 67018 states and 96123 transitions. Word has length 150 [2022-07-12 14:35:59,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:35:59,057 INFO L495 AbstractCegarLoop]: Abstraction has 67018 states and 96123 transitions. [2022-07-12 14:35:59,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:35:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 67018 states and 96123 transitions. [2022-07-12 14:35:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-12 14:35:59,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:35:59,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:35:59,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 14:35:59,287 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 14:35:59,287 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:35:59,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:35:59,288 INFO L85 PathProgramCache]: Analyzing trace with hash 115279352, now seen corresponding path program 1 times [2022-07-12 14:35:59,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:35:59,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483523389] [2022-07-12 14:35:59,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:35:59,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:35:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:35:59,290 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 14:35:59,291 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 14:36:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:36:00,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:36:00,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:36:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-12 14:36:00,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:36:00,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:36:00,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483523389] [2022-07-12 14:36:00,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483523389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:36:00,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:36:00,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:36:00,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397044742] [2022-07-12 14:36:00,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:36:00,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:36:00,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:36:00,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:36:00,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:36:00,887 INFO L87 Difference]: Start difference. First operand 67018 states and 96123 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 14:36:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:36:03,865 INFO L93 Difference]: Finished difference Result 168635 states and 242712 transitions. [2022-07-12 14:36:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 14:36:03,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 166 [2022-07-12 14:36:03,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:36:04,505 INFO L225 Difference]: With dead ends: 168635 [2022-07-12 14:36:04,505 INFO L226 Difference]: Without dead ends: 101639 [2022-07-12 14:36:04,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:36:04,682 INFO L413 NwaCegarLoop]: 6993 mSDtfsCounter, 3981 mSDsluCounter, 10478 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 17471 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:36:04,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 17471 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 14:36:04,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101639 states. [2022-07-12 14:36:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101639 to 67048. [2022-07-12 14:36:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67048 states, 45385 states have (on average 1.309331276853586) internal successors, (59424), 46268 states have internal predecessors, (59424), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-07-12 14:36:07,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67048 states to 67048 states and 96153 transitions. [2022-07-12 14:36:07,667 INFO L78 Accepts]: Start accepts. Automaton has 67048 states and 96153 transitions. Word has length 166 [2022-07-12 14:36:07,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:36:07,668 INFO L495 AbstractCegarLoop]: Abstraction has 67048 states and 96153 transitions. [2022-07-12 14:36:07,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 14:36:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 67048 states and 96153 transitions. [2022-07-12 14:36:07,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-12 14:36:07,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:36:07,674 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:36:07,706 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 14:36:07,892 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 14:36:07,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:36:07,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:36:07,892 INFO L85 PathProgramCache]: Analyzing trace with hash -713391816, now seen corresponding path program 1 times [2022-07-12 14:36:07,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:36:07,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346898755] [2022-07-12 14:36:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:36:07,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:36:07,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:36:07,895 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:36:07,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 14:36:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:36:10,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:36:10,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:36:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-12 14:36:10,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:36:10,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:36:10,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346898755] [2022-07-12 14:36:10,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346898755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:36:10,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:36:10,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:36:10,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16294340] [2022-07-12 14:36:10,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:36:10,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:36:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:36:10,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:36:10,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:36:10,825 INFO L87 Difference]: Start difference. First operand 67048 states and 96153 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 14:36:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:36:14,408 INFO L93 Difference]: Finished difference Result 153174 states and 219822 transitions. [2022-07-12 14:36:14,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:36:14,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 171 [2022-07-12 14:36:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:36:14,958 INFO L225 Difference]: With dead ends: 153174 [2022-07-12 14:36:14,958 INFO L226 Difference]: Without dead ends: 86148 [2022-07-12 14:36:15,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:36:15,138 INFO L413 NwaCegarLoop]: 6595 mSDtfsCounter, 3107 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 10033 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:36:15,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 10033 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 14:36:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86148 states. [2022-07-12 14:36:17,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86148 to 86120. [2022-07-12 14:36:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86120 states, 58389 states have (on average 1.3083114970285499) internal successors, (76391), 59519 states have internal predecessors, (76391), 22556 states have call successors, (22556), 5220 states have call predecessors, (22556), 5174 states have return successors, (24402), 22361 states have call predecessors, (24402), 22555 states have call successors, (24402) [2022-07-12 14:36:18,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86120 states to 86120 states and 123349 transitions. [2022-07-12 14:36:18,203 INFO L78 Accepts]: Start accepts. Automaton has 86120 states and 123349 transitions. Word has length 171 [2022-07-12 14:36:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:36:18,204 INFO L495 AbstractCegarLoop]: Abstraction has 86120 states and 123349 transitions. [2022-07-12 14:36:18,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 14:36:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 86120 states and 123349 transitions. [2022-07-12 14:36:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-12 14:36:18,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:36:18,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:18,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-12 14:36:18,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:36:18,411 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:36:18,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:36:18,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1498136421, now seen corresponding path program 1 times [2022-07-12 14:36:18,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:36:18,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122204087] [2022-07-12 14:36:18,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:36:18,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:36:18,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:36:18,414 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:36:18,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 14:36:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:36:20,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:36:20,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:36:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-12 14:36:20,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:36:20,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:36:20,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122204087] [2022-07-12 14:36:20,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122204087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:36:20,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:36:20,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:36:20,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842075972] [2022-07-12 14:36:20,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:36:20,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:36:20,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:36:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:36:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:36:20,243 INFO L87 Difference]: Start difference. First operand 86120 states and 123349 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 14:36:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:36:23,120 INFO L93 Difference]: Finished difference Result 176830 states and 254250 transitions. [2022-07-12 14:36:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:36:23,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2022-07-12 14:36:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:36:23,670 INFO L225 Difference]: With dead ends: 176830 [2022-07-12 14:36:23,670 INFO L226 Difference]: Without dead ends: 90732 [2022-07-12 14:36:23,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:36:23,949 INFO L413 NwaCegarLoop]: 3807 mSDtfsCounter, 717 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 11086 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:36:23,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 11086 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:36:24,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90732 states.