./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:35:39,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:35:39,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:35:39,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:35:39,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:35:39,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:35:39,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:35:39,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:35:39,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:35:39,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:35:39,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:35:39,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:35:39,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:35:39,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:35:39,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:35:39,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:35:39,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:35:39,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:35:39,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:35:39,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:35:39,883 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:35:39,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:35:39,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:35:39,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:35:39,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:35:39,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:35:39,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:35:39,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:35:39,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:35:39,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:35:39,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:35:39,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:35:39,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:35:39,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:35:39,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:35:39,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:35:39,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:35:39,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:35:39,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:35:39,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:35:39,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:35:39,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:35:39,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:35:39,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:35:39,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:35:39,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:35:39,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:35:39,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:35:39,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:35:39,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:35:39,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:35:39,932 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:35:39,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:35:39,933 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:35:39,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:35:39,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:35:39,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:35:39,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:35:39,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:35:39,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:35:39,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:35:39,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:35:39,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:35:39,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:35:39,936 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:35:39,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:35:39,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:35:39,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-07-20 01:35:40,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:35:40,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:35:40,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:35:40,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:35:40,136 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:35:40,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:35:40,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5946e3c96/ac233de51ec94f82a5fc55dea3f499ac/FLAGb34bd97aa [2022-07-20 01:35:40,775 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:35:40,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:35:40,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5946e3c96/ac233de51ec94f82a5fc55dea3f499ac/FLAGb34bd97aa [2022-07-20 01:35:40,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5946e3c96/ac233de51ec94f82a5fc55dea3f499ac [2022-07-20 01:35:40,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:35:40,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:35:40,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:35:40,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:35:40,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:35:40,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:35:40" (1/1) ... [2022-07-20 01:35:40,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e055f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:40, skipping insertion in model container [2022-07-20 01:35:40,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:35:40" (1/1) ... [2022-07-20 01:35:40,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:35:41,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:35:42,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-20 01:35:42,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:35:42,339 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:35:42,628 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: data = data & 4294967171U [7881] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 01:35:42,635 INFO L158 Benchmark]: Toolchain (without parser) took 1703.95ms. Allocated memory was 107.0MB in the beginning and 184.5MB in the end (delta: 77.6MB). Free memory was 64.3MB in the beginning and 99.4MB in the end (delta: -35.1MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-07-20 01:35:42,636 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 01:35:42,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1700.86ms. Allocated memory was 107.0MB in the beginning and 184.5MB in the end (delta: 77.6MB). Free memory was 64.1MB in the beginning and 99.4MB in the end (delta: -35.4MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-07-20 01:35:42,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1700.86ms. Allocated memory was 107.0MB in the beginning and 184.5MB in the end (delta: 77.6MB). Free memory was 64.1MB in the beginning and 99.4MB in the end (delta: -35.4MB). Peak memory consumption was 73.2MB. 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 [7881] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294967171U [7881]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:35:44,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:35:44,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:35:44,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:35:44,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:35:44,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:35:44,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:35:44,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:35:44,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:35:44,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:35:44,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:35:44,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:35:44,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:35:44,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:35:44,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:35:44,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:35:44,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:35:44,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:35:44,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:35:44,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:35:44,411 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:35:44,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:35:44,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:35:44,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:35:44,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:35:44,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:35:44,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:35:44,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:35:44,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:35:44,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:35:44,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:35:44,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:35:44,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:35:44,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:35:44,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:35:44,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:35:44,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:35:44,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:35:44,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:35:44,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:35:44,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:35:44,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:35:44,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 01:35:44,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:35:44,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:35:44,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:35:44,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:35:44,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:35:44,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:35:44,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:35:44,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:35:44,466 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:35:44,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:35:44,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:35:44,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:35:44,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:35:44,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:35:44,468 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 01:35:44,468 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 01:35:44,468 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 01:35:44,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:35:44,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:35:44,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:35:44,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:35:44,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:35:44,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:35:44,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:35:44,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:35:44,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:35:44,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:35:44,470 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 01:35:44,470 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 01:35:44,470 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:35:44,470 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:35:44,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:35:44,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 01:35:44,471 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-07-20 01:35:44,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:35:44,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:35:44,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:35:44,792 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:35:44,792 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:35:44,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:35:44,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110316571/e0ff717333d443f09a0fc7dee5baa854/FLAG42e099e23 [2022-07-20 01:35:45,461 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:35:45,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:35:45,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110316571/e0ff717333d443f09a0fc7dee5baa854/FLAG42e099e23 [2022-07-20 01:35:45,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110316571/e0ff717333d443f09a0fc7dee5baa854 [2022-07-20 01:35:45,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:35:45,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:35:45,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:35:45,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:35:45,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:35:45,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:35:45" (1/1) ... [2022-07-20 01:35:45,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c7b74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:45, skipping insertion in model container [2022-07-20 01:35:45,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:35:45" (1/1) ... [2022-07-20 01:35:45,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:35:45,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:35:47,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-20 01:35:47,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:35:47,372 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 01:35:47,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:35:47,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-20 01:35:47,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:35:47,719 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:35:48,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-07-20 01:35:48,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:35:48,178 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:35:48,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48 WrapperNode [2022-07-20 01:35:48,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:35:48,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:35:48,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:35:48,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:35:48,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,448 INFO L137 Inliner]: procedures = 371, calls = 3641, calls flagged for inlining = 134, calls inlined = 130, statements flattened = 6809 [2022-07-20 01:35:48,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:35:48,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:35:48,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:35:48,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:35:48,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:35:48,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:35:48,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:35:48,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:35:48,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (1/1) ... [2022-07-20 01:35:48,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:35:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:35:48,811 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) [2022-07-20 01:35:48,831 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 [2022-07-20 01:35:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 01:35:48,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 01:35:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-07-20 01:35:48,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-07-20 01:35:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 01:35:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-07-20 01:35:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-07-20 01:35:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-07-20 01:35:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-07-20 01:35:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 01:35:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 01:35:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-07-20 01:35:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-07-20 01:35:48,840 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-07-20 01:35:48,840 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 01:35:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:35:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:35:48,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:35:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:35:48,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:35:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-07-20 01:35:48,841 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-07-20 01:35:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:35:48,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:35:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-07-20 01:35:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-07-20 01:35:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-07-20 01:35:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-07-20 01:35:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-07-20 01:35:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-07-20 01:35:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-07-20 01:35:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-07-20 01:35:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-20 01:35:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-20 01:35:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-07-20 01:35:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-07-20 01:35:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-20 01:35:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-20 01:35:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-07-20 01:35:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-07-20 01:35:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-07-20 01:35:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-07-20 01:35:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-07-20 01:35:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-07-20 01:35:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-07-20 01:35:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-07-20 01:35:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-20 01:35:48,846 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-20 01:35:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-07-20 01:35:48,846 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-07-20 01:35:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 01:35:48,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 01:35:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:35:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:35:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-07-20 01:35:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-07-20 01:35:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-07-20 01:35:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-07-20 01:35:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-07-20 01:35:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-07-20 01:35:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-07-20 01:35:48,847 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-07-20 01:35:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-20 01:35:48,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-20 01:35:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-07-20 01:35:48,848 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-07-20 01:35:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-07-20 01:35:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-07-20 01:35:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:35:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:35:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-07-20 01:35:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-07-20 01:35:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-20 01:35:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-20 01:35:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-07-20 01:35:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-07-20 01:35:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-07-20 01:35:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-07-20 01:35:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-07-20 01:35:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-07-20 01:35:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-07-20 01:35:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-07-20 01:35:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-07-20 01:35:48,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-07-20 01:35:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-07-20 01:35:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-07-20 01:35:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-07-20 01:35:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-07-20 01:35:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:35:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 01:35:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 01:35:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-07-20 01:35:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-07-20 01:35:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-07-20 01:35:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-07-20 01:35:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-07-20 01:35:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-07-20 01:35:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:35:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 01:35:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 01:35:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-20 01:35:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-20 01:35:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-20 01:35:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-20 01:35:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-20 01:35:48,855 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-20 01:35:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-07-20 01:35:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-07-20 01:35:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 01:35:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 01:35:48,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 01:35:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:35:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 01:35:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-07-20 01:35:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-07-20 01:35:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:35:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-07-20 01:35:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-07-20 01:35:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-07-20 01:35:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-07-20 01:35:48,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-07-20 01:35:48,864 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-20 01:35:48,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-20 01:35:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 01:35:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 01:35:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-20 01:35:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-20 01:35:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 01:35:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 01:35:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-07-20 01:35:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-07-20 01:35:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-07-20 01:35:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-07-20 01:35:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 01:35:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 01:35:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-07-20 01:35:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-07-20 01:35:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-20 01:35:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-20 01:35:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-07-20 01:35:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-07-20 01:35:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-07-20 01:35:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-07-20 01:35:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-07-20 01:35:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-07-20 01:35:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-07-20 01:35:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-07-20 01:35:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-07-20 01:35:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-07-20 01:35:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-20 01:35:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-20 01:35:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-07-20 01:35:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-07-20 01:35:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-20 01:35:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-20 01:35:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-07-20 01:35:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-07-20 01:35:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-07-20 01:35:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-07-20 01:35:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-07-20 01:35:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-07-20 01:35:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-07-20 01:35:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-07-20 01:35:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:35:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:35:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-07-20 01:35:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-07-20 01:35:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-20 01:35:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-20 01:35:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-07-20 01:35:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-07-20 01:35:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-07-20 01:35:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-07-20 01:35:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:35:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:35:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-07-20 01:35:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-07-20 01:35:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-07-20 01:35:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-07-20 01:35:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-07-20 01:35:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-07-20 01:35:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:35:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:35:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-07-20 01:35:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-07-20 01:35:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-07-20 01:35:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-07-20 01:35:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-20 01:35:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 01:35:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:35:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:35:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-07-20 01:35:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-07-20 01:35:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:35:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:35:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-07-20 01:35:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-07-20 01:35:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-07-20 01:35:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-07-20 01:35:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:35:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-07-20 01:35:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-07-20 01:35:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-07-20 01:35:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-07-20 01:35:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-07-20 01:35:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-20 01:35:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-20 01:35:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-07-20 01:35:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-07-20 01:35:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:35:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-07-20 01:35:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-07-20 01:35:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-07-20 01:35:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-07-20 01:35:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:35:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 01:35:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 01:35:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 01:35:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-07-20 01:35:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-07-20 01:35:48,875 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-07-20 01:35:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-07-20 01:35:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-07-20 01:35:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-07-20 01:35:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-07-20 01:35:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-07-20 01:35:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-07-20 01:35:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-07-20 01:35:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-07-20 01:35:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-07-20 01:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-07-20 01:35:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-07-20 01:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-07-20 01:35:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-07-20 01:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-07-20 01:35:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-07-20 01:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-07-20 01:35:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-07-20 01:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-20 01:35:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-20 01:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-07-20 01:35:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-07-20 01:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-20 01:35:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-20 01:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-07-20 01:35:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-07-20 01:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 01:35:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 01:35:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-07-20 01:35:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-07-20 01:35:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 01:35:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 01:35:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-07-20 01:35:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-07-20 01:35:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-07-20 01:35:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-07-20 01:35:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-20 01:35:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-20 01:35:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 01:35:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-07-20 01:35:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-07-20 01:35:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:35:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:35:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-07-20 01:35:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-07-20 01:35:49,766 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:35:49,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:35:50,525 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:37:46,195 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:37:46,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:37:46,217 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:37:46,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:37:46 BoogieIcfgContainer [2022-07-20 01:37:46,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:37:46,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:37:46,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:37:46,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:37:46,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:35:45" (1/3) ... [2022-07-20 01:37:46,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536a589b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:37:46, skipping insertion in model container [2022-07-20 01:37:46,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:48" (2/3) ... [2022-07-20 01:37:46,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536a589b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:37:46, skipping insertion in model container [2022-07-20 01:37:46,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:37:46" (3/3) ... [2022-07-20 01:37:46,226 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:37:46,237 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:37:46,237 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:37:46,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:37:46,342 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@443b3a86, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c5a2d19 [2022-07-20 01:37:46,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:37:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) [2022-07-20 01:37:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 01:37:46,375 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:46,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:37:46,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:46,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:46,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2034179201, now seen corresponding path program 1 times [2022-07-20 01:37:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:37:46,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087478759] [2022-07-20 01:37:46,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:46,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:37:46,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:37:46,397 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) [2022-07-20 01:37:46,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 01:37:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:47,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:37:47,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 01:37:48,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:48,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:37:48,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087478759] [2022-07-20 01:37:48,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087478759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:48,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:37:48,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:37:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636796703] [2022-07-20 01:37:48,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:48,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:37:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:37:48,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:37:48,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:37:48,075 INFO L87 Difference]: Start difference. First operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 01:37:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:48,572 INFO L93 Difference]: Finished difference Result 6667 states and 9956 transitions. [2022-07-20 01:37:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:37:48,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-07-20 01:37:48,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:48,600 INFO L225 Difference]: With dead ends: 6667 [2022-07-20 01:37:48,601 INFO L226 Difference]: Without dead ends: 4187 [2022-07-20 01:37:48,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:37:48,621 INFO L413 NwaCegarLoop]: 4663 mSDtfsCounter, 2503 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:48,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 8173 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:37:48,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2022-07-20 01:37:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 4183. [2022-07-20 01:37:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 2837 states have (on average 1.3249911878745153) internal successors, (3759), 2889 states have internal predecessors, (3759), 1117 states have call successors, (1117), 229 states have call predecessors, (1117), 228 states have return successors, (1116), 1108 states have call predecessors, (1116), 1116 states have call successors, (1116) [2022-07-20 01:37:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 5992 transitions. [2022-07-20 01:37:48,843 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 5992 transitions. Word has length 107 [2022-07-20 01:37:48,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:48,844 INFO L495 AbstractCegarLoop]: Abstraction has 4183 states and 5992 transitions. [2022-07-20 01:37:48,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 01:37:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 5992 transitions. [2022-07-20 01:37:48,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-20 01:37:48,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:48,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:37:48,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:49,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:37:49,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:49,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1327248420, now seen corresponding path program 1 times [2022-07-20 01:37:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:37:49,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904224008] [2022-07-20 01:37:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:49,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:37:49,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:37:49,085 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) [2022-07-20 01:37:49,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 01:37:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:51,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:37:51,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 01:37:51,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:51,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:37:51,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904224008] [2022-07-20 01:37:51,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904224008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:51,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:37:51,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:37:51,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556667049] [2022-07-20 01:37:51,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:51,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:37:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:37:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:37:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:37:51,697 INFO L87 Difference]: Start difference. First operand 4183 states and 5992 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 01:37:52,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:52,903 INFO L93 Difference]: Finished difference Result 10992 states and 15696 transitions. [2022-07-20 01:37:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:37:52,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2022-07-20 01:37:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:52,942 INFO L225 Difference]: With dead ends: 10992 [2022-07-20 01:37:52,943 INFO L226 Difference]: Without dead ends: 6817 [2022-07-20 01:37:52,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:37:52,966 INFO L413 NwaCegarLoop]: 5300 mSDtfsCounter, 3053 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 8740 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:52,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 8740 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-20 01:37:52,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6817 states. [2022-07-20 01:37:53,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6817 to 6814. [2022-07-20 01:37:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6814 states, 4608 states have (on average 1.3181423611111112) internal successors, (6074), 4695 states have internal predecessors, (6074), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1805 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-07-20 01:37:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6814 states to 6814 states and 9709 transitions. [2022-07-20 01:37:53,191 INFO L78 Accepts]: Start accepts. Automaton has 6814 states and 9709 transitions. Word has length 100 [2022-07-20 01:37:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:53,192 INFO L495 AbstractCegarLoop]: Abstraction has 6814 states and 9709 transitions. [2022-07-20 01:37:53,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 01:37:53,193 INFO L276 IsEmpty]: Start isEmpty. Operand 6814 states and 9709 transitions. [2022-07-20 01:37:53,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-20 01:37:53,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:53,206 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:37:53,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:53,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:37:53,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash -355677677, now seen corresponding path program 1 times [2022-07-20 01:37:53,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:37:53,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737395777] [2022-07-20 01:37:53,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:53,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:37:53,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:37:53,436 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) [2022-07-20 01:37:53,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 01:37:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:55,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 01:37:55,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 01:37:56,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:56,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:37:56,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737395777] [2022-07-20 01:37:56,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737395777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:56,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:37:56,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:37:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751580190] [2022-07-20 01:37:56,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:56,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 01:37:56,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:37:56,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 01:37:56,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 01:37:56,649 INFO L87 Difference]: Start difference. First operand 6814 states and 9709 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-20 01:37:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:57,143 INFO L93 Difference]: Finished difference Result 13609 states and 19397 transitions. [2022-07-20 01:37:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:37:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-07-20 01:37:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:57,185 INFO L225 Difference]: With dead ends: 13609 [2022-07-20 01:37:57,185 INFO L226 Difference]: Without dead ends: 6798 [2022-07-20 01:37:57,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:37:57,220 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 3 mSDsluCounter, 7015 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10525 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:57,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10525 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:37:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6798 states. [2022-07-20 01:37:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6798 to 6792. [2022-07-20 01:37:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3176470588235294) internal successors, (6048), 4677 states have internal predecessors, (6048), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-20 01:37:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9677 transitions. [2022-07-20 01:37:57,442 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9677 transitions. Word has length 130 [2022-07-20 01:37:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:57,443 INFO L495 AbstractCegarLoop]: Abstraction has 6792 states and 9677 transitions. [2022-07-20 01:37:57,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-20 01:37:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9677 transitions. [2022-07-20 01:37:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-20 01:37:57,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:57,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:37:57,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:57,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:37:57,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:57,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:57,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2011288551, now seen corresponding path program 1 times [2022-07-20 01:37:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:37:57,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050993132] [2022-07-20 01:37:57,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:57,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:37:57,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:37:57,680 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) [2022-07-20 01:37:57,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 01:37:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:59,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:37:59,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 01:37:59,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:59,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:37:59,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050993132] [2022-07-20 01:37:59,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050993132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:59,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:37:59,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:37:59,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050174237] [2022-07-20 01:37:59,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:59,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:37:59,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:37:59,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:37:59,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:37:59,210 INFO L87 Difference]: Start difference. First operand 6792 states and 9677 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 01:37:59,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:59,372 INFO L93 Difference]: Finished difference Result 13571 states and 19339 transitions. [2022-07-20 01:37:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:37:59,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2022-07-20 01:37:59,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:59,404 INFO L225 Difference]: With dead ends: 13571 [2022-07-20 01:37:59,404 INFO L226 Difference]: Without dead ends: 6792 [2022-07-20 01:37:59,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:37:59,432 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 0 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7018 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:59,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7018 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:37:59,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6792 states. [2022-07-20 01:37:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6792 to 6792. [2022-07-20 01:37:59,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3172113289760348) internal successors, (6046), 4677 states have internal predecessors, (6046), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-20 01:37:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9675 transitions. [2022-07-20 01:37:59,642 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9675 transitions. Word has length 140 [2022-07-20 01:37:59,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:59,642 INFO L495 AbstractCegarLoop]: Abstraction has 6792 states and 9675 transitions. [2022-07-20 01:37:59,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 01:37:59,643 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9675 transitions. [2022-07-20 01:37:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-20 01:37:59,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:59,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:37:59,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:59,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:37:59,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:59,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:59,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1245094171, now seen corresponding path program 1 times [2022-07-20 01:37:59,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:37:59,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946886869] [2022-07-20 01:37:59,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:59,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:37:59,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:37:59,876 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) [2022-07-20 01:37:59,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 01:38:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:01,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:01,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-20 01:38:01,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:01,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:01,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946886869] [2022-07-20 01:38:01,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946886869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:01,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:01,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:01,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105931094] [2022-07-20 01:38:01,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:01,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:01,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:01,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:01,609 INFO L87 Difference]: Start difference. First operand 6792 states and 9675 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:38:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:01,906 INFO L93 Difference]: Finished difference Result 13570 states and 19334 transitions. [2022-07-20 01:38:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:01,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2022-07-20 01:38:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:01,957 INFO L225 Difference]: With dead ends: 13570 [2022-07-20 01:38:01,958 INFO L226 Difference]: Without dead ends: 6791 [2022-07-20 01:38:01,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:01,982 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 0 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7015 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:01,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7015 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:38:01,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2022-07-20 01:38:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6786. [2022-07-20 01:38:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 4584 states have (on average 1.3171902268760907) internal successors, (6038), 4672 states have internal predecessors, (6038), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1801 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-07-20 01:38:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9667 transitions. [2022-07-20 01:38:02,211 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9667 transitions. Word has length 140 [2022-07-20 01:38:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:02,212 INFO L495 AbstractCegarLoop]: Abstraction has 6786 states and 9667 transitions. [2022-07-20 01:38:02,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:38:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9667 transitions. [2022-07-20 01:38:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-20 01:38:02,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:02,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:02,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:02,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:02,444 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:02,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash -82410969, now seen corresponding path program 1 times [2022-07-20 01:38:02,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:02,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769343123] [2022-07-20 01:38:02,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:02,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:02,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:02,452 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) [2022-07-20 01:38:02,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 01:38:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:03,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:03,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-20 01:38:05,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:05,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:05,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769343123] [2022-07-20 01:38:05,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769343123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:05,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:05,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:05,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67566151] [2022-07-20 01:38:05,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:05,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:05,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:05,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:05,232 INFO L87 Difference]: Start difference. First operand 6786 states and 9667 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-20 01:38:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:05,682 INFO L93 Difference]: Finished difference Result 16699 states and 23738 transitions. [2022-07-20 01:38:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:05,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 157 [2022-07-20 01:38:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:05,721 INFO L225 Difference]: With dead ends: 16699 [2022-07-20 01:38:05,721 INFO L226 Difference]: Without dead ends: 9928 [2022-07-20 01:38:05,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:05,743 INFO L413 NwaCegarLoop]: 5111 mSDtfsCounter, 3455 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3455 SdHoareTripleChecker+Valid, 7811 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:05,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3455 Valid, 7811 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:38:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9928 states. [2022-07-20 01:38:06,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9928 to 9917. [2022-07-20 01:38:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 6688 states have (on average 1.3132476076555024) internal successors, (8783), 6818 states have internal predecessors, (8783), 2644 states have call successors, (2644), 585 states have call predecessors, (2644), 584 states have return successors, (2643), 2626 states have call predecessors, (2643), 2643 states have call successors, (2643) [2022-07-20 01:38:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 14070 transitions. [2022-07-20 01:38:06,133 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 14070 transitions. Word has length 157 [2022-07-20 01:38:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:06,133 INFO L495 AbstractCegarLoop]: Abstraction has 9917 states and 14070 transitions. [2022-07-20 01:38:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-20 01:38:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 14070 transitions. [2022-07-20 01:38:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 01:38:06,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:06,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:06,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:06,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:06,372 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:06,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:06,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1553948647, now seen corresponding path program 1 times [2022-07-20 01:38:06,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:06,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152324391] [2022-07-20 01:38:06,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:06,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:06,380 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) [2022-07-20 01:38:06,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 01:38:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:09,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:09,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 01:38:09,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:09,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:09,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152324391] [2022-07-20 01:38:09,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152324391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:09,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:09,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:09,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710067426] [2022-07-20 01:38:09,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:09,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:09,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:09,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:09,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:09,845 INFO L87 Difference]: Start difference. First operand 9917 states and 14070 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-20 01:38:11,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:11,335 INFO L93 Difference]: Finished difference Result 23813 states and 33796 transitions. [2022-07-20 01:38:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:11,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 149 [2022-07-20 01:38:11,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:11,391 INFO L225 Difference]: With dead ends: 23813 [2022-07-20 01:38:11,391 INFO L226 Difference]: Without dead ends: 13911 [2022-07-20 01:38:11,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:11,422 INFO L413 NwaCegarLoop]: 5712 mSDtfsCounter, 3091 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 9149 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:11,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 9149 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-20 01:38:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13911 states. [2022-07-20 01:38:11,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13911 to 13903. [2022-07-20 01:38:11,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13903 states, 9401 states have (on average 1.3115625997234337) internal successors, (12330), 9583 states have internal predecessors, (12330), 3672 states have call successors, (3672), 830 states have call predecessors, (3672), 829 states have return successors, (3671), 3649 states have call predecessors, (3671), 3671 states have call successors, (3671) [2022-07-20 01:38:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13903 states to 13903 states and 19673 transitions. [2022-07-20 01:38:11,924 INFO L78 Accepts]: Start accepts. Automaton has 13903 states and 19673 transitions. Word has length 149 [2022-07-20 01:38:11,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:11,925 INFO L495 AbstractCegarLoop]: Abstraction has 13903 states and 19673 transitions. [2022-07-20 01:38:11,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-20 01:38:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 13903 states and 19673 transitions. [2022-07-20 01:38:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-20 01:38:11,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:11,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:12,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:12,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:12,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash 789903210, now seen corresponding path program 1 times [2022-07-20 01:38:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:12,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867748177] [2022-07-20 01:38:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:12,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:12,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:12,172 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) [2022-07-20 01:38:12,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 01:38:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:13,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:13,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 01:38:14,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:14,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:14,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867748177] [2022-07-20 01:38:14,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867748177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:14,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:14,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:14,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734662426] [2022-07-20 01:38:14,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:14,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:14,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:14,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:14,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:14,056 INFO L87 Difference]: Start difference. First operand 13903 states and 19673 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:14,729 INFO L93 Difference]: Finished difference Result 41629 states and 59371 transitions. [2022-07-20 01:38:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:14,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-07-20 01:38:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:14,843 INFO L225 Difference]: With dead ends: 41629 [2022-07-20 01:38:14,844 INFO L226 Difference]: Without dead ends: 27741 [2022-07-20 01:38:14,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:14,896 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 3484 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3484 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:14,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 7725 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:38:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27741 states. [2022-07-20 01:38:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27741 to 27738. [2022-07-20 01:38:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27738 states, 18756 states have (on average 1.3100341224141607) internal successors, (24571), 19120 states have internal predecessors, (24571), 7324 states have call successors, (7324), 1658 states have call predecessors, (7324), 1657 states have return successors, (7558), 7279 states have call predecessors, (7558), 7323 states have call successors, (7558) [2022-07-20 01:38:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27738 states to 27738 states and 39453 transitions. [2022-07-20 01:38:15,800 INFO L78 Accepts]: Start accepts. Automaton has 27738 states and 39453 transitions. Word has length 151 [2022-07-20 01:38:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:15,800 INFO L495 AbstractCegarLoop]: Abstraction has 27738 states and 39453 transitions. [2022-07-20 01:38:15,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 27738 states and 39453 transitions. [2022-07-20 01:38:15,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-20 01:38:15,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:15,811 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:15,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:16,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:16,020 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1975612218, now seen corresponding path program 1 times [2022-07-20 01:38:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:16,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783294629] [2022-07-20 01:38:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:16,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:16,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:16,044 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) [2022-07-20 01:38:16,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 01:38:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:17,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1809 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:17,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 01:38:18,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:18,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:18,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783294629] [2022-07-20 01:38:18,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783294629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:18,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:18,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:18,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117574791] [2022-07-20 01:38:18,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:18,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:18,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:18,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:18,119 INFO L87 Difference]: Start difference. First operand 27738 states and 39453 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:19,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:19,237 INFO L93 Difference]: Finished difference Result 69276 states and 99372 transitions. [2022-07-20 01:38:19,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:19,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-07-20 01:38:19,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:19,610 INFO L225 Difference]: With dead ends: 69276 [2022-07-20 01:38:19,610 INFO L226 Difference]: Without dead ends: 41553 [2022-07-20 01:38:19,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:19,685 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 3485 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 7685 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:19,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 7685 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:38:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41553 states. [2022-07-20 01:38:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41553 to 41550. [2022-07-20 01:38:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41550 states, 28104 states have (on average 1.3093509820666098) internal successors, (36798), 28650 states have internal predecessors, (36798), 10960 states have call successors, (10960), 2486 states have call predecessors, (10960), 2485 states have return successors, (11598), 10893 states have call predecessors, (11598), 10959 states have call successors, (11598) [2022-07-20 01:38:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41550 states to 41550 states and 59356 transitions. [2022-07-20 01:38:21,040 INFO L78 Accepts]: Start accepts. Automaton has 41550 states and 59356 transitions. Word has length 152 [2022-07-20 01:38:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:21,041 INFO L495 AbstractCegarLoop]: Abstraction has 41550 states and 59356 transitions. [2022-07-20 01:38:21,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 41550 states and 59356 transitions. [2022-07-20 01:38:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-20 01:38:21,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:21,051 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:21,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:21,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:21,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:21,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1793981039, now seen corresponding path program 1 times [2022-07-20 01:38:21,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:21,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485273884] [2022-07-20 01:38:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:21,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:21,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:21,300 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) [2022-07-20 01:38:21,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 01:38:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:23,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:23,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 01:38:23,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:23,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:23,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485273884] [2022-07-20 01:38:23,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485273884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:23,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:23,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:23,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285578481] [2022-07-20 01:38:23,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:23,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:23,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:23,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:23,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:23,413 INFO L87 Difference]: Start difference. First operand 41550 states and 59356 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:24,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:24,912 INFO L93 Difference]: Finished difference Result 96373 states and 138310 transitions. [2022-07-20 01:38:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:24,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2022-07-20 01:38:24,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:25,344 INFO L225 Difference]: With dead ends: 96373 [2022-07-20 01:38:25,344 INFO L226 Difference]: Without dead ends: 54838 [2022-07-20 01:38:25,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:25,506 INFO L413 NwaCegarLoop]: 4152 mSDtfsCounter, 3402 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3402 SdHoareTripleChecker+Valid, 7672 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 [2022-07-20 01:38:25,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3402 Valid, 7672 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:38:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54838 states. [2022-07-20 01:38:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54838 to 54835. [2022-07-20 01:38:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54835 states, 37085 states have (on average 1.309855736820817) internal successors, (48576), 37834 states have internal predecessors, (48576), 14479 states have call successors, (14479), 3306 states have call predecessors, (14479), 3270 states have return successors, (15512), 14334 states have call predecessors, (15512), 14478 states have call successors, (15512) [2022-07-20 01:38:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54835 states to 54835 states and 78567 transitions. [2022-07-20 01:38:27,891 INFO L78 Accepts]: Start accepts. Automaton has 54835 states and 78567 transitions. Word has length 150 [2022-07-20 01:38:27,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:27,892 INFO L495 AbstractCegarLoop]: Abstraction has 54835 states and 78567 transitions. [2022-07-20 01:38:27,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 54835 states and 78567 transitions. [2022-07-20 01:38:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-20 01:38:27,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:27,916 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:27,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:28,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:28,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:28,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:28,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1527405581, now seen corresponding path program 1 times [2022-07-20 01:38:28,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:28,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661167999] [2022-07-20 01:38:28,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:28,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:28,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:28,121 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) [2022-07-20 01:38:28,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 01:38:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:29,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:29,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 01:38:30,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:30,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:30,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661167999] [2022-07-20 01:38:30,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661167999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:30,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:30,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284245928] [2022-07-20 01:38:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:30,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:30,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:30,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:30,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:30,068 INFO L87 Difference]: Start difference. First operand 54835 states and 78567 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:32,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:32,299 INFO L93 Difference]: Finished difference Result 121841 states and 176053 transitions. [2022-07-20 01:38:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:32,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-07-20 01:38:32,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:32,719 INFO L225 Difference]: With dead ends: 121841 [2022-07-20 01:38:32,719 INFO L226 Difference]: Without dead ends: 67021 [2022-07-20 01:38:32,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:32,965 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 3486 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3486 SdHoareTripleChecker+Valid, 7685 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:32,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3486 Valid, 7685 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:38:33,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67021 states. [2022-07-20 01:38:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67021 to 67018. [2022-07-20 01:38:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67018 states, 45355 states have (on average 1.3095358835850512) internal successors, (59394), 46238 states have internal predecessors, (59394), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-07-20 01:38:35,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67018 states to 67018 states and 96123 transitions. [2022-07-20 01:38:35,628 INFO L78 Accepts]: Start accepts. Automaton has 67018 states and 96123 transitions. Word has length 153 [2022-07-20 01:38:35,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:35,629 INFO L495 AbstractCegarLoop]: Abstraction has 67018 states and 96123 transitions. [2022-07-20 01:38:35,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:38:35,629 INFO L276 IsEmpty]: Start isEmpty. Operand 67018 states and 96123 transitions. [2022-07-20 01:38:35,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-20 01:38:35,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:35,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:35,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:35,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:35,852 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:35,852 INFO L85 PathProgramCache]: Analyzing trace with hash 115279352, now seen corresponding path program 1 times [2022-07-20 01:38:35,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:35,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557225874] [2022-07-20 01:38:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:35,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:35,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:35,855 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) [2022-07-20 01:38:35,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 01:38:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:37,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:38:37,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-20 01:38:37,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:37,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:37,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557225874] [2022-07-20 01:38:37,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557225874] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:37,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:37,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:38:37,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378210729] [2022-07-20 01:38:37,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:37,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 01:38:37,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 01:38:37,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 01:38:37,871 INFO L87 Difference]: Start difference. First operand 67018 states and 96123 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 01:38:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:41,506 INFO L93 Difference]: Finished difference Result 168635 states and 242712 transitions. [2022-07-20 01:38:41,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 01:38:41,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 166 [2022-07-20 01:38:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:42,178 INFO L225 Difference]: With dead ends: 168635 [2022-07-20 01:38:42,178 INFO L226 Difference]: Without dead ends: 101639 [2022-07-20 01:38:42,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:38:42,362 INFO L413 NwaCegarLoop]: 6993 mSDtfsCounter, 3981 mSDsluCounter, 10478 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 17471 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:42,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 17471 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-20 01:38:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101639 states. [2022-07-20 01:38:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101639 to 67048. [2022-07-20 01:38:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67048 states, 45385 states have (on average 1.309331276853586) internal successors, (59424), 46268 states have internal predecessors, (59424), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-07-20 01:38:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67048 states to 67048 states and 96153 transitions. [2022-07-20 01:38:45,594 INFO L78 Accepts]: Start accepts. Automaton has 67048 states and 96153 transitions. Word has length 166 [2022-07-20 01:38:45,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:45,594 INFO L495 AbstractCegarLoop]: Abstraction has 67048 states and 96153 transitions. [2022-07-20 01:38:45,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 01:38:45,595 INFO L276 IsEmpty]: Start isEmpty. Operand 67048 states and 96153 transitions. [2022-07-20 01:38:45,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-20 01:38:45,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:45,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:45,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-20 01:38:45,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:45,829 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1020791585, now seen corresponding path program 1 times [2022-07-20 01:38:45,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:45,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100513896] [2022-07-20 01:38:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:45,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:45,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:45,832 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) [2022-07-20 01:38:45,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 01:38:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:48,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 2947 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:38:48,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-20 01:38:49,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:49,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:49,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100513896] [2022-07-20 01:38:49,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100513896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:49,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:49,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:38:49,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795302752] [2022-07-20 01:38:49,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:49,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:38:49,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:49,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:38:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:49,146 INFO L87 Difference]: Start difference. First operand 67048 states and 96153 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:38:53,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:38:53,049 INFO L93 Difference]: Finished difference Result 153174 states and 219822 transitions. [2022-07-20 01:38:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:38:53,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 170 [2022-07-20 01:38:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:38:53,617 INFO L225 Difference]: With dead ends: 153174 [2022-07-20 01:38:53,618 INFO L226 Difference]: Without dead ends: 86148 [2022-07-20 01:38:53,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:38:53,836 INFO L413 NwaCegarLoop]: 6595 mSDtfsCounter, 3108 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 10033 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-20 01:38:53,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 10033 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-20 01:38:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86148 states. [2022-07-20 01:38:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86148 to 86120. [2022-07-20 01:38:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86120 states, 58389 states have (on average 1.3083114970285499) internal successors, (76391), 59519 states have internal predecessors, (76391), 22556 states have call successors, (22556), 5220 states have call predecessors, (22556), 5174 states have return successors, (24402), 22361 states have call predecessors, (24402), 22555 states have call successors, (24402) [2022-07-20 01:38:57,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86120 states to 86120 states and 123349 transitions. [2022-07-20 01:38:57,057 INFO L78 Accepts]: Start accepts. Automaton has 86120 states and 123349 transitions. Word has length 170 [2022-07-20 01:38:57,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:38:57,057 INFO L495 AbstractCegarLoop]: Abstraction has 86120 states and 123349 transitions. [2022-07-20 01:38:57,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:38:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 86120 states and 123349 transitions. [2022-07-20 01:38:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-20 01:38:57,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:38:57,064 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:38:57,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 01:38:57,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:38:57,301 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:38:57,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:38:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1498136421, now seen corresponding path program 1 times [2022-07-20 01:38:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:38:57,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439291309] [2022-07-20 01:38:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:38:57,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:38:57,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:38:57,330 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) [2022-07-20 01:38:57,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 01:38:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:38:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:38:59,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:38:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-20 01:38:59,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:38:59,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:38:59,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439291309] [2022-07-20 01:38:59,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439291309] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:38:59,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:38:59,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:38:59,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074555293] [2022-07-20 01:38:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:38:59,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 01:38:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:38:59,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 01:38:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 01:38:59,494 INFO L87 Difference]: Start difference. First operand 86120 states and 123349 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:39:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:39:02,785 INFO L93 Difference]: Finished difference Result 176830 states and 254250 transitions. [2022-07-20 01:39:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:39:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2022-07-20 01:39:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:39:03,541 INFO L225 Difference]: With dead ends: 176830 [2022-07-20 01:39:03,542 INFO L226 Difference]: Without dead ends: 90732 [2022-07-20 01:39:03,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:39:03,829 INFO L413 NwaCegarLoop]: 3805 mSDtfsCounter, 718 mSDsluCounter, 7280 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 11085 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:39:03,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 11085 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:39:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90732 states. [2022-07-20 01:39:06,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90732 to 86160. [2022-07-20 01:39:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86160 states, 58429 states have (on average 1.308100429581201) internal successors, (76431), 59559 states have internal predecessors, (76431), 22556 states have call successors, (22556), 5220 states have call predecessors, (22556), 5174 states have return successors, (24402), 22361 states have call predecessors, (24402), 22555 states have call successors, (24402) [2022-07-20 01:39:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86160 states to 86160 states and 123389 transitions. [2022-07-20 01:39:07,220 INFO L78 Accepts]: Start accepts. Automaton has 86160 states and 123389 transitions. Word has length 171 [2022-07-20 01:39:07,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:39:07,221 INFO L495 AbstractCegarLoop]: Abstraction has 86160 states and 123389 transitions. [2022-07-20 01:39:07,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:39:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 86160 states and 123389 transitions. [2022-07-20 01:39:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-20 01:39:07,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:39:07,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:39:07,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-20 01:39:07,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:39:07,447 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:39:07,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:39:07,448 INFO L85 PathProgramCache]: Analyzing trace with hash 856248861, now seen corresponding path program 1 times [2022-07-20 01:39:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:39:07,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884642160] [2022-07-20 01:39:07,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:39:07,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:39:07,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:39:07,452 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) [2022-07-20 01:39:07,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 01:39:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:39:09,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-20 01:39:09,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:39:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-20 01:39:10,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:39:10,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:39:10,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884642160] [2022-07-20 01:39:10,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884642160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:39:10,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:39:10,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:39:10,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248199926] [2022-07-20 01:39:10,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:39:10,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:39:10,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:39:10,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:39:10,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:39:10,958 INFO L87 Difference]: Start difference. First operand 86160 states and 123389 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17)