./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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:32:03,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:32:03,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:32:03,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:32:03,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:32:03,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:32:03,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:32:03,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:32:03,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:32:03,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:32:03,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:32:03,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:32:03,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:32:03,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:32:03,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:32:03,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:32:03,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:32:03,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:32:03,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:32:03,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:32:03,896 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:32:03,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:32:03,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:32:03,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:32:03,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:32:03,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:32:03,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:32:03,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:32:03,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:32:03,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:32:03,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:32:03,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:32:03,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:32:03,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:32:03,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:32:03,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:32:03,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:32:03,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:32:03,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:32:03,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:32:03,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:32:03,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:32:03,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:32:03,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:32:03,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:32:03,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:32:03,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:32:03,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:32:03,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:32:03,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:32:03,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:32:03,954 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:32:03,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:32:03,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:32:03,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:32:03,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:32:03,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:32:03,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:32:03,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:32:03,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:32:03,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:32:03,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:32:03,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:32:03,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:32:03,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:32:03,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:32:03,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:32:03,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:32:03,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:32:03,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:32:03,958 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:32:03,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:32:03,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:32:03,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-07-21 12:32:04,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:32:04,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:32:04,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:32:04,303 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:32:04,304 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:32:04,305 INFO L432 ainManager$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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-21 12:32:04,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bf7f2ce/59aeaac5d24e4228bd37bb33c1a39669/FLAGe1f3baf5e [2022-07-21 12:32:05,212 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:32:05,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-21 12:32:05,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bf7f2ce/59aeaac5d24e4228bd37bb33c1a39669/FLAGe1f3baf5e [2022-07-21 12:32:05,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bf7f2ce/59aeaac5d24e4228bd37bb33c1a39669 [2022-07-21 12:32:05,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:32:05,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:32:05,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:32:05,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:32:05,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:32:05,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:32:05" (1/1) ... [2022-07-21 12:32:05,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf42bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:05, skipping insertion in model container [2022-07-21 12:32:05,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:32:05" (1/1) ... [2022-07-21 12:32:05,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:32:05,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:32:08,208 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-21 12:32:08,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:32:08,457 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:32:08,918 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 [8328] 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) [2022-07-21 12:32:08,939 INFO L158 Benchmark]: Toolchain (without parser) took 3177.96ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 30.5MB in the beginning and 55.6MB in the end (delta: -25.1MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-07-21 12:32:08,941 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 12:32:08,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3176.47ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 30.2MB in the beginning and 55.6MB in the end (delta: -25.4MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2022-07-21 12:32:08,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3176.47ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 30.2MB in the beginning and 55.6MB in the end (delta: -25.4MB). Peak memory consumption was 60.2MB. 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 [8328] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294967171U [8328]: 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-32_7a-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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:32:10,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:32:10,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:32:10,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:32:10,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:32:10,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:32:10,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:32:10,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:32:10,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:32:10,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:32:10,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:32:10,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:32:10,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:32:10,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:32:10,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:32:10,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:32:10,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:32:10,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:32:10,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:32:10,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:32:10,842 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:32:10,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:32:10,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:32:10,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:32:10,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:32:10,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:32:10,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:32:10,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:32:10,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:32:10,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:32:10,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:32:10,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:32:10,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:32:10,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:32:10,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:32:10,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:32:10,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:32:10,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:32:10,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:32:10,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:32:10,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:32:10,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:32:10,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 12:32:10,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:32:10,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:32:10,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:32:10,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:32:10,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:32:10,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:32:10,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:32:10,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:32:10,903 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:32:10,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:32:10,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:32:10,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:32:10,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:32:10,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:32:10,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 12:32:10,905 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 12:32:10,905 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 12:32:10,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:32:10,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:32:10,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:32:10,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:32:10,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:32:10,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:32:10,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:32:10,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:32:10,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:32:10,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:32:10,907 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 12:32:10,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 12:32:10,908 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:32:10,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:32:10,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:32:10,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 12:32:10,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-07-21 12:32:11,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:32:11,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:32:11,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:32:11,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:32:11,269 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:32:11,270 INFO L432 ainManager$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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-21 12:32:11,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e88f0598/1ef3a3c32df34817b313a236159e130f/FLAGd07a192bb [2022-07-21 12:32:12,120 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:32:12,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-21 12:32:12,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e88f0598/1ef3a3c32df34817b313a236159e130f/FLAGd07a192bb [2022-07-21 12:32:12,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e88f0598/1ef3a3c32df34817b313a236159e130f [2022-07-21 12:32:12,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:32:12,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:32:12,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:32:12,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:32:12,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:32:12,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:32:12" (1/1) ... [2022-07-21 12:32:12,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c584f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:12, skipping insertion in model container [2022-07-21 12:32:12,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:32:12" (1/1) ... [2022-07-21 12:32:12,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:32:12,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:32:15,294 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-21 12:32:15,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:32:15,657 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 12:32:15,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:32:16,060 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-21 12:32:16,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:32:16,105 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:32:16,687 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-21 12:32:16,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:32:16,873 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:32:16,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16 WrapperNode [2022-07-21 12:32:16,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:32:16,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:32:16,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:32:16,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:32:16,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,180 INFO L137 Inliner]: procedures = 494, calls = 3867, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7084 [2022-07-21 12:32:17,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:32:17,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:32:17,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:32:17,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:32:17,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:32:17,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:32:17,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:32:17,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:32:17,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (1/1) ... [2022-07-21 12:32:17,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:32:17,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:32:17,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 12:32:17,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 12:32:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-07-21 12:32:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-07-21 12:32:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-07-21 12:32:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-07-21 12:32:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-07-21 12:32:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-07-21 12:32:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:32:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:32:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:32:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:32:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-07-21 12:32:17,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-07-21 12:32:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-07-21 12:32:17,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-07-21 12:32:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-21 12:32:17,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-21 12:32:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-07-21 12:32:17,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-07-21 12:32:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-07-21 12:32:17,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-07-21 12:32:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-07-21 12:32:17,656 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-07-21 12:32:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-07-21 12:32:17,656 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-07-21 12:32:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-07-21 12:32:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-07-21 12:32:17,657 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-07-21 12:32:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-07-21 12:32:17,657 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-21 12:32:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-21 12:32:17,657 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-07-21 12:32:17,657 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-07-21 12:32:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 12:32:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 12:32:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 12:32:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 12:32:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2022-07-21 12:32:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2022-07-21 12:32:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-07-21 12:32:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-07-21 12:32:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:32:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-07-21 12:32:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-07-21 12:32:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-07-21 12:32:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-07-21 12:32:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 12:32:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 12:32:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 12:32:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 12:32:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 12:32:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-07-21 12:32:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-07-21 12:32:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-07-21 12:32:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-07-21 12:32:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-07-21 12:32:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-07-21 12:32:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-21 12:32:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-21 12:32:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-07-21 12:32:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-07-21 12:32:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2022-07-21 12:32:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2022-07-21 12:32:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-07-21 12:32:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-07-21 12:32:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 12:32:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 12:32:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-07-21 12:32:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-07-21 12:32:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-21 12:32:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-21 12:32:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-07-21 12:32:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-07-21 12:32:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-07-21 12:32:17,664 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-07-21 12:32:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-07-21 12:32:17,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-07-21 12:32:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-07-21 12:32:17,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-07-21 12:32:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-07-21 12:32:17,664 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-07-21 12:32:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 12:32:17,665 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 12:32:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-07-21 12:32:17,665 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-07-21 12:32:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:32:17,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:32:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-07-21 12:32:17,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-07-21 12:32:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:32:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-07-21 12:32:17,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-07-21 12:32:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 12:32:17,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 12:32:17,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:32:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:32:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 12:32:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 12:32:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 12:32:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-07-21 12:32:17,667 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-07-21 12:32:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-07-21 12:32:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-07-21 12:32:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-07-21 12:32:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-07-21 12:32:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 12:32:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 12:32:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 12:32:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 12:32:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-21 12:32:17,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-21 12:32:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 12:32:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2022-07-21 12:32:17,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2022-07-21 12:32:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-07-21 12:32:17,669 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-07-21 12:32:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:32:17,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:32:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 12:32:17,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 12:32:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-07-21 12:32:17,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-07-21 12:32:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 12:32:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-07-21 12:32:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-07-21 12:32:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 12:32:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 12:32:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-07-21 12:32:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-07-21 12:32:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-07-21 12:32:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-07-21 12:32:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 12:32:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 12:32:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 12:32:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 12:32:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 12:32:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:32:17,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:32:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-07-21 12:32:17,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-07-21 12:32:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-07-21 12:32:17,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-07-21 12:32:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-07-21 12:32:17,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-07-21 12:32:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-07-21 12:32:17,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-07-21 12:32:17,674 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-21 12:32:17,674 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-21 12:32:17,674 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-07-21 12:32:17,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-07-21 12:32:17,674 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-07-21 12:32:17,674 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-07-21 12:32:17,674 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-21 12:32:17,674 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-21 12:32:17,675 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-07-21 12:32:17,675 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-07-21 12:32:17,675 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:32:17,675 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:32:17,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:32:17,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:32:17,675 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-07-21 12:32:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-07-21 12:32:17,676 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-07-21 12:32:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-07-21 12:32:17,676 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-21 12:32:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-21 12:32:17,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:32:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:32:17,676 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-07-21 12:32:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-07-21 12:32:17,677 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-07-21 12:32:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-07-21 12:32:17,677 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-07-21 12:32:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-07-21 12:32:17,677 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:32:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:32:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-07-21 12:32:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-07-21 12:32:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-07-21 12:32:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-07-21 12:32:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-07-21 12:32:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-07-21 12:32:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 12:32:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 12:32:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-07-21 12:32:17,679 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-07-21 12:32:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:32:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 12:32:17,679 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 12:32:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-07-21 12:32:17,679 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-07-21 12:32:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-07-21 12:32:17,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-07-21 12:32:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-07-21 12:32:17,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-07-21 12:32:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:32:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-21 12:32:17,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-21 12:32:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-21 12:32:17,681 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-21 12:32:17,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 12:32:17,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 12:32:17,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 12:32:17,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 12:32:17,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:32:17,681 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-07-21 12:32:17,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-07-21 12:32:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-07-21 12:32:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-07-21 12:32:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-07-21 12:32:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-07-21 12:32:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 12:32:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 12:32:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:32:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:32:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 12:32:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 12:32:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-07-21 12:32:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-07-21 12:32:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 12:32:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 12:32:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-07-21 12:32:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-07-21 12:32:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-21 12:32:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-21 12:32:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-07-21 12:32:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-07-21 12:32:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-07-21 12:32:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-07-21 12:32:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-07-21 12:32:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-07-21 12:32:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-07-21 12:32:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-07-21 12:32:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 12:32:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 12:32:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-07-21 12:32:17,685 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-07-21 12:32:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-07-21 12:32:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-07-21 12:32:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-07-21 12:32:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-07-21 12:32:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-07-21 12:32:17,686 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-07-21 12:32:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:32:17,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:32:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-07-21 12:32:17,687 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-07-21 12:32:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 12:32:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 12:32:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 12:32:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 12:32:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:32:17,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:32:17,688 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-07-21 12:32:17,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-07-21 12:32:17,688 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-07-21 12:32:17,688 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-07-21 12:32:17,688 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-07-21 12:32:17,688 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-07-21 12:32:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-07-21 12:32:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-07-21 12:32:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-07-21 12:32:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-07-21 12:32:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-07-21 12:32:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-07-21 12:32:17,689 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-07-21 12:32:17,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-07-21 12:32:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-07-21 12:32:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-07-21 12:32:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-07-21 12:32:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-07-21 12:32:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-07-21 12:32:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-07-21 12:32:17,690 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-07-21 12:32:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-07-21 12:32:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-07-21 12:32:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-07-21 12:32:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 12:32:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 12:32:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-07-21 12:32:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-07-21 12:32:17,691 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-21 12:32:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-21 12:32:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-07-21 12:32:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-07-21 12:32:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-07-21 12:32:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-07-21 12:32:17,692 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-07-21 12:32:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-07-21 12:32:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-07-21 12:32:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-07-21 12:32:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-07-21 12:32:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-07-21 12:32:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-07-21 12:32:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-07-21 12:32:17,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-07-21 12:32:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-07-21 12:32:18,809 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:32:18,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:32:19,762 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:34:21,159 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:34:21,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:34:21,191 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:34:21,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:34:21 BoogieIcfgContainer [2022-07-21 12:34:21,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:34:21,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:34:21,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:34:21,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:34:21,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:32:12" (1/3) ... [2022-07-21 12:34:21,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276c792c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:34:21, skipping insertion in model container [2022-07-21 12:34:21,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:32:16" (2/3) ... [2022-07-21 12:34:21,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276c792c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:34:21, skipping insertion in model container [2022-07-21 12:34:21,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:34:21" (3/3) ... [2022-07-21 12:34:21,204 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-21 12:34:21,218 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:34:21,218 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:34:21,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:34:21,335 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@13b55526, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@250b8940 [2022-07-21 12:34:21,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:34:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-07-21 12:34:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 12:34:21,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:21,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:21,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:21,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:21,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1765604170, now seen corresponding path program 1 times [2022-07-21 12:34:21,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:21,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570306999] [2022-07-21 12:34:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:21,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:21,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:21,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:21,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 12:34:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:22,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 12:34:22,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:22,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:22,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:22,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570306999] [2022-07-21 12:34:22,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570306999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:22,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:22,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:34:22,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042790446] [2022-07-21 12:34:22,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:22,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 12:34:22,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:22,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 12:34:22,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 12:34:22,705 INFO L87 Difference]: Start difference. First operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:22,937 INFO L93 Difference]: Finished difference Result 5079 states and 7591 transitions. [2022-07-21 12:34:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 12:34:22,940 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-21 12:34:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:22,976 INFO L225 Difference]: With dead ends: 5079 [2022-07-21 12:34:22,976 INFO L226 Difference]: Without dead ends: 2529 [2022-07-21 12:34:23,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 12:34:23,005 INFO L413 NwaCegarLoop]: 3650 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:23,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:34:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2022-07-21 12:34:23,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2529. [2022-07-21 12:34:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1702 states have (on average 1.3243243243243243) internal successors, (2254), 1741 states have internal predecessors, (2254), 695 states have call successors, (695), 132 states have call predecessors, (695), 131 states have return successors, (684), 680 states have call predecessors, (684), 684 states have call successors, (684) [2022-07-21 12:34:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3633 transitions. [2022-07-21 12:34:23,229 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3633 transitions. Word has length 35 [2022-07-21 12:34:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:23,230 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3633 transitions. [2022-07-21 12:34:23,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3633 transitions. [2022-07-21 12:34:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 12:34:23,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:23,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:23,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 12:34:23,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:23,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:23,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:23,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1899617676, now seen corresponding path program 1 times [2022-07-21 12:34:23,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:23,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231228831] [2022-07-21 12:34:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:23,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:23,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:23,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:23,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 12:34:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:24,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:24,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:24,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:24,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:24,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231228831] [2022-07-21 12:34:24,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231228831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:24,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:24,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:24,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387954903] [2022-07-21 12:34:24,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:24,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:24,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:24,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:24,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:24,920 INFO L87 Difference]: Start difference. First operand 2529 states and 3633 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:25,564 INFO L93 Difference]: Finished difference Result 7515 states and 10870 transitions. [2022-07-21 12:34:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:25,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-21 12:34:25,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:25,603 INFO L225 Difference]: With dead ends: 7515 [2022-07-21 12:34:25,603 INFO L226 Difference]: Without dead ends: 4994 [2022-07-21 12:34:25,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:25,624 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 3540 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:25,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 7968 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:34:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2022-07-21 12:34:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4972. [2022-07-21 12:34:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 3348 states have (on average 1.3255675029868579) internal successors, (4438), 3420 states have internal predecessors, (4438), 1366 states have call successors, (1366), 263 states have call predecessors, (1366), 257 states have return successors, (1380), 1338 states have call predecessors, (1380), 1355 states have call successors, (1380) [2022-07-21 12:34:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 7184 transitions. [2022-07-21 12:34:25,888 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 7184 transitions. Word has length 35 [2022-07-21 12:34:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:25,889 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 7184 transitions. [2022-07-21 12:34:25,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:25,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 7184 transitions. [2022-07-21 12:34:25,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 12:34:25,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:25,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:25,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 12:34:26,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:26,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:26,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:26,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2138293771, now seen corresponding path program 1 times [2022-07-21 12:34:26,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:26,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784771064] [2022-07-21 12:34:26,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:26,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:26,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 12:34:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:27,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:27,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:27,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:27,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:27,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784771064] [2022-07-21 12:34:27,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784771064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:27,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:27,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59869766] [2022-07-21 12:34:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:27,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:27,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:27,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:27,466 INFO L87 Difference]: Start difference. First operand 4972 states and 7184 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:28,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:28,141 INFO L93 Difference]: Finished difference Result 12447 states and 18110 transitions. [2022-07-21 12:34:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:28,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-07-21 12:34:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:28,198 INFO L225 Difference]: With dead ends: 12447 [2022-07-21 12:34:28,198 INFO L226 Difference]: Without dead ends: 7483 [2022-07-21 12:34:28,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:28,234 INFO L413 NwaCegarLoop]: 4343 mSDtfsCounter, 3608 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 7994 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 [2022-07-21 12:34:28,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 7994 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:34:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2022-07-21 12:34:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7461. [2022-07-21 12:34:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 5027 states have (on average 1.324447980903123) internal successors, (6658), 5128 states have internal predecessors, (6658), 2045 states have call successors, (2045), 394 states have call predecessors, (2045), 388 states have return successors, (2122), 2013 states have call predecessors, (2122), 2034 states have call successors, (2122) [2022-07-21 12:34:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 10825 transitions. [2022-07-21 12:34:28,614 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 10825 transitions. Word has length 36 [2022-07-21 12:34:28,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:28,615 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 10825 transitions. [2022-07-21 12:34:28,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:28,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 10825 transitions. [2022-07-21 12:34:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 12:34:28,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:28,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:28,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 12:34:28,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:28,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2064385685, now seen corresponding path program 1 times [2022-07-21 12:34:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:28,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492918024] [2022-07-21 12:34:28,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:28,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:28,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:28,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:28,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 12:34:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:29,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:29,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:30,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:30,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:30,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492918024] [2022-07-21 12:34:30,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492918024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:30,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:30,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:30,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972101193] [2022-07-21 12:34:30,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:30,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:30,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:30,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:30,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:30,138 INFO L87 Difference]: Start difference. First operand 7461 states and 10825 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:30,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:30,817 INFO L93 Difference]: Finished difference Result 17422 states and 25485 transitions. [2022-07-21 12:34:30,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:30,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-21 12:34:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:30,901 INFO L225 Difference]: With dead ends: 17422 [2022-07-21 12:34:30,901 INFO L226 Difference]: Without dead ends: 9969 [2022-07-21 12:34:30,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:30,955 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 3609 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 7961 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 [2022-07-21 12:34:30,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 7961 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:34:30,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2022-07-21 12:34:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9947. [2022-07-21 12:34:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9947 states, 6705 states have (on average 1.3237882177479492) internal successors, (8876), 6835 states have internal predecessors, (8876), 2722 states have call successors, (2722), 525 states have call predecessors, (2722), 519 states have return successors, (2887), 2686 states have call predecessors, (2887), 2711 states have call successors, (2887) [2022-07-21 12:34:31,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9947 states to 9947 states and 14485 transitions. [2022-07-21 12:34:31,581 INFO L78 Accepts]: Start accepts. Automaton has 9947 states and 14485 transitions. Word has length 37 [2022-07-21 12:34:31,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:31,582 INFO L495 AbstractCegarLoop]: Abstraction has 9947 states and 14485 transitions. [2022-07-21 12:34:31,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9947 states and 14485 transitions. [2022-07-21 12:34:31,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 12:34:31,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:31,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:31,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 12:34:31,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:31,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash 267621922, now seen corresponding path program 1 times [2022-07-21 12:34:31,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:31,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816811229] [2022-07-21 12:34:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:31,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:31,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:31,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:31,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 12:34:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:32,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:32,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:33,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:33,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:33,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816811229] [2022-07-21 12:34:33,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816811229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:33,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:33,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:33,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456100845] [2022-07-21 12:34:33,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:33,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:33,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:33,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:33,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:33,391 INFO L87 Difference]: Start difference. First operand 9947 states and 14485 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:34,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:34,155 INFO L93 Difference]: Finished difference Result 22272 states and 32683 transitions. [2022-07-21 12:34:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:34,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-07-21 12:34:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:34,241 INFO L225 Difference]: With dead ends: 22272 [2022-07-21 12:34:34,242 INFO L226 Difference]: Without dead ends: 12333 [2022-07-21 12:34:34,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:34,298 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 3610 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3610 SdHoareTripleChecker+Valid, 7960 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:34,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3610 Valid, 7960 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:34:34,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12333 states. [2022-07-21 12:34:34,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12333 to 12311. [2022-07-21 12:34:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12311 states, 8301 states have (on average 1.3232140705939044) internal successors, (10984), 8457 states have internal predecessors, (10984), 3361 states have call successors, (3361), 654 states have call predecessors, (3361), 648 states have return successors, (3583), 3322 states have call predecessors, (3583), 3350 states have call successors, (3583) [2022-07-21 12:34:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12311 states to 12311 states and 17928 transitions. [2022-07-21 12:34:34,948 INFO L78 Accepts]: Start accepts. Automaton has 12311 states and 17928 transitions. Word has length 38 [2022-07-21 12:34:34,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:34,949 INFO L495 AbstractCegarLoop]: Abstraction has 12311 states and 17928 transitions. [2022-07-21 12:34:34,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12311 states and 17928 transitions. [2022-07-21 12:34:34,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 12:34:34,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:34,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:34,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 12:34:35,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:35,163 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash 98713607, now seen corresponding path program 1 times [2022-07-21 12:34:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:35,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458859030] [2022-07-21 12:34:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:35,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:35,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:35,167 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:35,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 12:34:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:35,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:35,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:36,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:36,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:36,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458859030] [2022-07-21 12:34:36,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458859030] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:36,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:36,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:36,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023927713] [2022-07-21 12:34:36,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:36,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:36,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:36,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:36,269 INFO L87 Difference]: Start difference. First operand 12311 states and 17928 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:37,270 INFO L93 Difference]: Finished difference Result 36838 states and 53658 transitions. [2022-07-21 12:34:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:37,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-07-21 12:34:37,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:37,405 INFO L225 Difference]: With dead ends: 36838 [2022-07-21 12:34:37,406 INFO L226 Difference]: Without dead ends: 24535 [2022-07-21 12:34:37,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:37,468 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 3591 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 8171 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:37,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 8171 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:34:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2022-07-21 12:34:38,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 24527. [2022-07-21 12:34:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24527 states, 16530 states have (on average 1.3225650332728374) internal successors, (21862), 16832 states have internal predecessors, (21862), 6700 states have call successors, (6700), 1307 states have call predecessors, (6700), 1296 states have return successors, (7155), 6633 states have call predecessors, (7155), 6689 states have call successors, (7155) [2022-07-21 12:34:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24527 states to 24527 states and 35717 transitions. [2022-07-21 12:34:38,761 INFO L78 Accepts]: Start accepts. Automaton has 24527 states and 35717 transitions. Word has length 36 [2022-07-21 12:34:38,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:38,761 INFO L495 AbstractCegarLoop]: Abstraction has 24527 states and 35717 transitions. [2022-07-21 12:34:38,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 24527 states and 35717 transitions. [2022-07-21 12:34:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 12:34:38,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:38,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:38,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 12:34:38,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:38,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1619670549, now seen corresponding path program 1 times [2022-07-21 12:34:38,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:38,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974666238] [2022-07-21 12:34:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:38,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:38,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:38,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 12:34:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:39,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:39,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:40,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:40,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:40,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974666238] [2022-07-21 12:34:40,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974666238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:40,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:40,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:40,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178266284] [2022-07-21 12:34:40,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:40,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:40,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:40,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:40,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:40,136 INFO L87 Difference]: Start difference. First operand 24527 states and 35717 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:41,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:41,172 INFO L93 Difference]: Finished difference Result 49026 states and 71375 transitions. [2022-07-21 12:34:41,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:41,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-07-21 12:34:41,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:41,302 INFO L225 Difference]: With dead ends: 49026 [2022-07-21 12:34:41,302 INFO L226 Difference]: Without dead ends: 24507 [2022-07-21 12:34:41,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:41,394 INFO L413 NwaCegarLoop]: 3628 mSDtfsCounter, 3618 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:41,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 3628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:34:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24507 states. [2022-07-21 12:34:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24507 to 24507. [2022-07-21 12:34:42,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24507 states, 16520 states have (on average 1.3221549636803873) internal successors, (21842), 16822 states have internal predecessors, (21842), 6690 states have call successors, (6690), 1307 states have call predecessors, (6690), 1296 states have return successors, (7125), 6623 states have call predecessors, (7125), 6679 states have call successors, (7125) [2022-07-21 12:34:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24507 states to 24507 states and 35657 transitions. [2022-07-21 12:34:42,739 INFO L78 Accepts]: Start accepts. Automaton has 24507 states and 35657 transitions. Word has length 38 [2022-07-21 12:34:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:42,740 INFO L495 AbstractCegarLoop]: Abstraction has 24507 states and 35657 transitions. [2022-07-21 12:34:42,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:42,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24507 states and 35657 transitions. [2022-07-21 12:34:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-21 12:34:42,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:42,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:42,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-21 12:34:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:42,964 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:42,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:42,964 INFO L85 PathProgramCache]: Analyzing trace with hash 131108824, now seen corresponding path program 1 times [2022-07-21 12:34:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:42,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907634314] [2022-07-21 12:34:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:42,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:42,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:42,968 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:42,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 12:34:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:44,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:44,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:44,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:44,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:44,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907634314] [2022-07-21 12:34:44,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907634314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:44,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:44,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:44,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059716328] [2022-07-21 12:34:44,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:44,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:44,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:44,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:44,475 INFO L87 Difference]: Start difference. First operand 24507 states and 35657 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:45,352 INFO L93 Difference]: Finished difference Result 48986 states and 71255 transitions. [2022-07-21 12:34:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:45,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-21 12:34:45,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:45,530 INFO L225 Difference]: With dead ends: 48986 [2022-07-21 12:34:45,530 INFO L226 Difference]: Without dead ends: 24487 [2022-07-21 12:34:45,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:45,671 INFO L413 NwaCegarLoop]: 3624 mSDtfsCounter, 3613 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:45,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3613 Valid, 3624 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:34:45,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24487 states. [2022-07-21 12:34:46,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24487 to 24487. [2022-07-21 12:34:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24487 states, 16510 states have (on average 1.3217443973349485) internal successors, (21822), 16812 states have internal predecessors, (21822), 6680 states have call successors, (6680), 1307 states have call predecessors, (6680), 1296 states have return successors, (7095), 6613 states have call predecessors, (7095), 6669 states have call successors, (7095) [2022-07-21 12:34:46,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24487 states to 24487 states and 35597 transitions. [2022-07-21 12:34:46,998 INFO L78 Accepts]: Start accepts. Automaton has 24487 states and 35597 transitions. Word has length 39 [2022-07-21 12:34:46,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:46,998 INFO L495 AbstractCegarLoop]: Abstraction has 24487 states and 35597 transitions. [2022-07-21 12:34:46,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:46,999 INFO L276 IsEmpty]: Start isEmpty. Operand 24487 states and 35597 transitions. [2022-07-21 12:34:46,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-21 12:34:46,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:47,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:47,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-21 12:34:47,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:47,215 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:47,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1163074537, now seen corresponding path program 1 times [2022-07-21 12:34:47,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:47,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747975023] [2022-07-21 12:34:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:47,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:47,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:47,224 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:47,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 12:34:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:48,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:48,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:48,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:48,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:48,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747975023] [2022-07-21 12:34:48,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747975023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:48,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:48,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:48,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013516056] [2022-07-21 12:34:48,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:48,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:48,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:48,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:48,639 INFO L87 Difference]: Start difference. First operand 24487 states and 35597 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 12:34:49,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:49,953 INFO L93 Difference]: Finished difference Result 66377 states and 96024 transitions. [2022-07-21 12:34:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:49,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-07-21 12:34:49,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:50,167 INFO L225 Difference]: With dead ends: 66377 [2022-07-21 12:34:50,168 INFO L226 Difference]: Without dead ends: 41898 [2022-07-21 12:34:50,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:50,282 INFO L413 NwaCegarLoop]: 5069 mSDtfsCounter, 2567 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 8670 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:50,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 8670 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:34:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41898 states. [2022-07-21 12:34:52,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41898 to 41873. [2022-07-21 12:34:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41873 states, 28223 states have (on average 1.3192431704638061) internal successors, (37233), 28735 states have internal predecessors, (37233), 11275 states have call successors, (11275), 2395 states have call predecessors, (11275), 2374 states have return successors, (11890), 11154 states have call predecessors, (11890), 11264 states have call successors, (11890) [2022-07-21 12:34:52,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41873 states to 41873 states and 60398 transitions. [2022-07-21 12:34:52,394 INFO L78 Accepts]: Start accepts. Automaton has 41873 states and 60398 transitions. Word has length 41 [2022-07-21 12:34:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:52,395 INFO L495 AbstractCegarLoop]: Abstraction has 41873 states and 60398 transitions. [2022-07-21 12:34:52,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 12:34:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 41873 states and 60398 transitions. [2022-07-21 12:34:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-21 12:34:52,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:52,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:52,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 12:34:52,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:52,617 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:52,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:52,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1958220894, now seen corresponding path program 1 times [2022-07-21 12:34:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:52,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773880152] [2022-07-21 12:34:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:52,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:52,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:52,624 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:52,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 12:34:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:53,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:53,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:53,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:53,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:53,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773880152] [2022-07-21 12:34:53,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773880152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:53,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:53,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:53,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593808509] [2022-07-21 12:34:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:53,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:53,836 INFO L87 Difference]: Start difference. First operand 41873 states and 60398 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:55,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:55,123 INFO L93 Difference]: Finished difference Result 83698 states and 120687 transitions. [2022-07-21 12:34:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:55,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-21 12:34:55,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:34:55,284 INFO L225 Difference]: With dead ends: 83698 [2022-07-21 12:34:55,284 INFO L226 Difference]: Without dead ends: 41833 [2022-07-21 12:34:55,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:55,413 INFO L413 NwaCegarLoop]: 3620 mSDtfsCounter, 3608 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:34:55,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 3620 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:34:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41833 states. [2022-07-21 12:34:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41833 to 41833. [2022-07-21 12:34:56,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41833 states, 28203 states have (on average 1.3187604155586286) internal successors, (37193), 28715 states have internal predecessors, (37193), 11255 states have call successors, (11255), 2395 states have call predecessors, (11255), 2374 states have return successors, (11830), 11134 states have call predecessors, (11830), 11244 states have call successors, (11830) [2022-07-21 12:34:57,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41833 states to 41833 states and 60278 transitions. [2022-07-21 12:34:57,084 INFO L78 Accepts]: Start accepts. Automaton has 41833 states and 60278 transitions. Word has length 40 [2022-07-21 12:34:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:34:57,085 INFO L495 AbstractCegarLoop]: Abstraction has 41833 states and 60278 transitions. [2022-07-21 12:34:57,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 41833 states and 60278 transitions. [2022-07-21 12:34:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-21 12:34:57,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:34:57,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:34:57,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-21 12:34:57,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:34:57,287 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:34:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:34:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1463119151, now seen corresponding path program 1 times [2022-07-21 12:34:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:34:57,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895570086] [2022-07-21 12:34:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:34:57,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:34:57,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:34:57,291 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:34:57,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 12:34:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:34:58,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:34:58,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:34:58,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:34:58,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:34:58,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:34:58,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895570086] [2022-07-21 12:34:58,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895570086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:34:58,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:34:58,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:34:58,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635733188] [2022-07-21 12:34:58,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:34:58,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:34:58,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:34:58,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:34:58,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:34:58,491 INFO L87 Difference]: Start difference. First operand 41833 states and 60278 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:34:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:34:59,982 INFO L93 Difference]: Finished difference Result 83122 states and 119679 transitions. [2022-07-21 12:34:59,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:34:59,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-21 12:34:59,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:35:00,151 INFO L225 Difference]: With dead ends: 83122 [2022-07-21 12:35:00,152 INFO L226 Difference]: Without dead ends: 41297 [2022-07-21 12:35:00,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:00,275 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 3565 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:35:00,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 3578 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:35:00,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41297 states. [2022-07-21 12:35:01,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41297 to 41297. [2022-07-21 12:35:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41297 states, 27827 states have (on average 1.3165989865957524) internal successors, (36637), 28335 states have internal predecessors, (36637), 11115 states have call successors, (11115), 2375 states have call predecessors, (11115), 2354 states have return successors, (11638), 10998 states have call predecessors, (11638), 11104 states have call successors, (11638) [2022-07-21 12:35:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41297 states to 41297 states and 59390 transitions. [2022-07-21 12:35:01,937 INFO L78 Accepts]: Start accepts. Automaton has 41297 states and 59390 transitions. Word has length 41 [2022-07-21 12:35:01,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:35:01,938 INFO L495 AbstractCegarLoop]: Abstraction has 41297 states and 59390 transitions. [2022-07-21 12:35:01,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:01,938 INFO L276 IsEmpty]: Start isEmpty. Operand 41297 states and 59390 transitions. [2022-07-21 12:35:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-21 12:35:01,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:35:01,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:35:01,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 12:35:02,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:35:02,152 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:35:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:35:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash 993998376, now seen corresponding path program 1 times [2022-07-21 12:35:02,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:35:02,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885878818] [2022-07-21 12:35:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:35:02,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:35:02,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:35:02,155 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:35:02,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 12:35:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:35:02,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:35:02,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:35:04,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:35:04,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:35:04,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:35:04,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885878818] [2022-07-21 12:35:04,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885878818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:35:04,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:35:04,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:35:04,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436724277] [2022-07-21 12:35:04,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:35:04,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:35:04,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:35:04,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:35:04,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:04,042 INFO L87 Difference]: Start difference. First operand 41297 states and 59390 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:04,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:35:04,975 INFO L93 Difference]: Finished difference Result 41299 states and 59391 transitions. [2022-07-21 12:35:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:35:04,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-21 12:35:04,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:35:05,134 INFO L225 Difference]: With dead ends: 41299 [2022-07-21 12:35:05,134 INFO L226 Difference]: Without dead ends: 41296 [2022-07-21 12:35:05,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:05,161 INFO L413 NwaCegarLoop]: 3576 mSDtfsCounter, 3540 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:35:05,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 3576 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:35:05,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41296 states. [2022-07-21 12:35:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41296 to 41296. [2022-07-21 12:35:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41296 states, 27827 states have (on average 1.3165630502749128) internal successors, (36636), 28334 states have internal predecessors, (36636), 11114 states have call successors, (11114), 2375 states have call predecessors, (11114), 2354 states have return successors, (11638), 10998 states have call predecessors, (11638), 11104 states have call successors, (11638) [2022-07-21 12:35:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41296 states to 41296 states and 59388 transitions. [2022-07-21 12:35:06,783 INFO L78 Accepts]: Start accepts. Automaton has 41296 states and 59388 transitions. Word has length 40 [2022-07-21 12:35:06,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:35:06,783 INFO L495 AbstractCegarLoop]: Abstraction has 41296 states and 59388 transitions. [2022-07-21 12:35:06,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 41296 states and 59388 transitions. [2022-07-21 12:35:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-21 12:35:06,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:35:06,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:35:06,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 12:35:06,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:35:06,992 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:35:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:35:06,992 INFO L85 PathProgramCache]: Analyzing trace with hash 747995506, now seen corresponding path program 1 times [2022-07-21 12:35:06,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:35:06,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345942708] [2022-07-21 12:35:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:35:06,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:35:06,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:35:06,994 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) [2022-07-21 12:35:06,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 12:35:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:35:07,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:35:07,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:35:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:35:08,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:35:08,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:35:08,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345942708] [2022-07-21 12:35:08,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345942708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:35:08,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:35:08,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:35:08,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078742596] [2022-07-21 12:35:08,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:35:08,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:35:08,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:35:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:35:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:08,898 INFO L87 Difference]: Start difference. First operand 41296 states and 59388 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:35:10,013 INFO L93 Difference]: Finished difference Result 48114 states and 68097 transitions. [2022-07-21 12:35:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:35:10,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-21 12:35:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:35:10,206 INFO L225 Difference]: With dead ends: 48114 [2022-07-21 12:35:10,206 INFO L226 Difference]: Without dead ends: 48110 [2022-07-21 12:35:10,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:10,236 INFO L413 NwaCegarLoop]: 4087 mSDtfsCounter, 1067 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:35:10,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 7109 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:35:10,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48110 states. [2022-07-21 12:35:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48110 to 48106. [2022-07-21 12:35:11,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48106 states, 32312 states have (on average 1.303664273334984) internal successors, (42124), 32945 states have internal predecessors, (42124), 12694 states have call successors, (12694), 3120 states have call predecessors, (12694), 3099 states have return successors, (13252), 12580 states have call predecessors, (13252), 12686 states have call successors, (13252) [2022-07-21 12:35:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48106 states to 48106 states and 68070 transitions. [2022-07-21 12:35:12,114 INFO L78 Accepts]: Start accepts. Automaton has 48106 states and 68070 transitions. Word has length 41 [2022-07-21 12:35:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:35:12,115 INFO L495 AbstractCegarLoop]: Abstraction has 48106 states and 68070 transitions. [2022-07-21 12:35:12,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:12,115 INFO L276 IsEmpty]: Start isEmpty. Operand 48106 states and 68070 transitions. [2022-07-21 12:35:12,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-21 12:35:12,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:35:12,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:35:12,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 12:35:12,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:35:12,320 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:35:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:35:12,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1711845995, now seen corresponding path program 1 times [2022-07-21 12:35:12,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:35:12,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999582391] [2022-07-21 12:35:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:35:12,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:35:12,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:35:12,323 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) [2022-07-21 12:35:12,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 12:35:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:35:13,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:35:13,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:35:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:35:14,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:35:14,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:35:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999582391] [2022-07-21 12:35:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999582391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:35:14,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:35:14,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:35:14,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039314103] [2022-07-21 12:35:14,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:35:14,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:35:14,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:35:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:35:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:14,182 INFO L87 Difference]: Start difference. First operand 48106 states and 68070 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:35:15,374 INFO L93 Difference]: Finished difference Result 49400 states and 69256 transitions. [2022-07-21 12:35:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:35:15,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-07-21 12:35:15,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:35:15,556 INFO L225 Difference]: With dead ends: 49400 [2022-07-21 12:35:15,556 INFO L226 Difference]: Without dead ends: 49396 [2022-07-21 12:35:15,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:15,587 INFO L413 NwaCegarLoop]: 3587 mSDtfsCounter, 3213 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:35:15,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 3981 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:35:15,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49396 states. [2022-07-21 12:35:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49396 to 49392. [2022-07-21 12:35:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49392 states, 33214 states have (on average 1.2977961100740651) internal successors, (43105), 33845 states have internal predecessors, (43105), 12782 states have call successors, (12782), 3416 states have call predecessors, (12782), 3395 states have return successors, (13342), 12670 states have call predecessors, (13342), 12776 states have call successors, (13342) [2022-07-21 12:35:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49392 states to 49392 states and 69229 transitions. [2022-07-21 12:35:17,534 INFO L78 Accepts]: Start accepts. Automaton has 49392 states and 69229 transitions. Word has length 42 [2022-07-21 12:35:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:35:17,535 INFO L495 AbstractCegarLoop]: Abstraction has 49392 states and 69229 transitions. [2022-07-21 12:35:17,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:17,535 INFO L276 IsEmpty]: Start isEmpty. Operand 49392 states and 69229 transitions. [2022-07-21 12:35:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-21 12:35:17,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:35:17,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:35:17,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 12:35:17,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:35:17,739 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:35:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:35:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1526444949, now seen corresponding path program 1 times [2022-07-21 12:35:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:35:17,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587915752] [2022-07-21 12:35:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:35:17,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:35:17,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:35:17,742 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:35:17,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 12:35:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:35:18,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:35:18,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:35:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:35:19,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:35:19,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:35:19,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587915752] [2022-07-21 12:35:19,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587915752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:35:19,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:35:19,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:35:19,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366715208] [2022-07-21 12:35:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:35:19,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:35:19,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:35:19,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:35:19,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:19,664 INFO L87 Difference]: Start difference. First operand 49392 states and 69229 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:20,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:35:20,909 INFO L93 Difference]: Finished difference Result 50812 states and 70455 transitions. [2022-07-21 12:35:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:35:20,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-07-21 12:35:20,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:35:21,102 INFO L225 Difference]: With dead ends: 50812 [2022-07-21 12:35:21,103 INFO L226 Difference]: Without dead ends: 50808 [2022-07-21 12:35:21,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:21,135 INFO L413 NwaCegarLoop]: 3583 mSDtfsCounter, 3221 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:35:21,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 3920 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:35:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50808 states. [2022-07-21 12:35:22,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50808 to 50806. [2022-07-21 12:35:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50806 states, 34186 states have (on average 1.290118762066343) internal successors, (44104), 34815 states have internal predecessors, (44104), 12864 states have call successors, (12864), 3776 states have call predecessors, (12864), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-21 12:35:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50806 states to 50806 states and 70394 transitions. [2022-07-21 12:35:23,216 INFO L78 Accepts]: Start accepts. Automaton has 50806 states and 70394 transitions. Word has length 43 [2022-07-21 12:35:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:35:23,216 INFO L495 AbstractCegarLoop]: Abstraction has 50806 states and 70394 transitions. [2022-07-21 12:35:23,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 50806 states and 70394 transitions. [2022-07-21 12:35:23,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-21 12:35:23,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:35:23,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:35:23,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 12:35:23,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:35:23,431 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:35:23,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:35:23,432 INFO L85 PathProgramCache]: Analyzing trace with hash 73984686, now seen corresponding path program 1 times [2022-07-21 12:35:23,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:35:23,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283765257] [2022-07-21 12:35:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:35:23,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:35:23,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:35:23,434 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:35:23,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 12:35:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:35:24,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:35:24,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:35:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:35:25,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:35:25,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:35:25,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283765257] [2022-07-21 12:35:25,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283765257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:35:25,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:35:25,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:35:25,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319716393] [2022-07-21 12:35:25,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:35:25,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:35:25,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:35:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:35:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:25,370 INFO L87 Difference]: Start difference. First operand 50806 states and 70394 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:35:26,601 INFO L93 Difference]: Finished difference Result 50808 states and 70395 transitions. [2022-07-21 12:35:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:35:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-07-21 12:35:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:35:26,789 INFO L225 Difference]: With dead ends: 50808 [2022-07-21 12:35:26,789 INFO L226 Difference]: Without dead ends: 50796 [2022-07-21 12:35:26,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:26,817 INFO L413 NwaCegarLoop]: 3563 mSDtfsCounter, 3522 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:35:26,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:35:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50796 states. [2022-07-21 12:35:28,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50796 to 50796. [2022-07-21 12:35:28,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50796 states, 34177 states have (on average 1.289317377183486) internal successors, (44065), 34805 states have internal predecessors, (44065), 12863 states have call successors, (12863), 3776 states have call predecessors, (12863), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-21 12:35:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50796 states to 50796 states and 70354 transitions. [2022-07-21 12:35:28,845 INFO L78 Accepts]: Start accepts. Automaton has 50796 states and 70354 transitions. Word has length 44 [2022-07-21 12:35:28,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:35:28,846 INFO L495 AbstractCegarLoop]: Abstraction has 50796 states and 70354 transitions. [2022-07-21 12:35:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 12:35:28,846 INFO L276 IsEmpty]: Start isEmpty. Operand 50796 states and 70354 transitions. [2022-07-21 12:35:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-21 12:35:28,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:35:28,850 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 12:35:28,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-21 12:35:29,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:35:29,063 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:35:29,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:35:29,064 INFO L85 PathProgramCache]: Analyzing trace with hash -879177529, now seen corresponding path program 1 times [2022-07-21 12:35:29,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:35:29,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946134069] [2022-07-21 12:35:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:35:29,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:35:29,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:35:29,066 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:35:29,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 12:35:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:35:29,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:35:29,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:35:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:35:30,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:35:30,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:35:30,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946134069] [2022-07-21 12:35:30,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946134069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:35:30,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:35:30,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:35:30,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982713296] [2022-07-21 12:35:30,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:35:30,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:35:30,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:35:30,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:35:30,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:35:30,056 INFO L87 Difference]: Start difference. First operand 50796 states and 70354 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)