./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:26:16,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:26:16,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:26:16,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:26:16,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:26:16,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:26:16,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:26:16,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:26:16,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:26:16,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:26:16,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:26:16,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:26:16,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:26:16,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:26:16,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:26:16,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:26:16,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:26:16,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:26:16,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:26:16,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:26:16,655 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:26:16,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:26:16,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:26:16,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:26:16,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:26:16,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:26:16,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:26:16,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:26:16,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:26:16,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:26:16,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:26:16,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:26:16,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:26:16,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:26:16,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:26:16,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:26:16,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:26:16,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:26:16,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:26:16,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:26:16,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:26:16,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:26:16,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:26:16,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:26:16,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:26:16,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:26:16,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:26:16,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:26:16,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:26:16,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:26:16,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:26:16,717 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:26:16,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:26:16,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:26:16,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:26:16,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:26:16,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:26:16,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:26:16,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:26:16,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:26:16,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:26:16,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:26:16,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:26:16,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:26:16,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:26:16,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:26:16,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:26:16,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:26:16,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:26:16,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:26:16,732 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:26:16,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:26:16,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:26:16,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 [2022-07-21 11:26:17,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:26:17,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:26:17,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:26:17,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:26:17,063 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:26:17,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-21 11:26:17,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe218b9ce/80cc95f4f41148cfbf511d5fea34bc54/FLAG5c9152cbf [2022-07-21 11:26:17,854 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:26:17,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-21 11:26:17,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe218b9ce/80cc95f4f41148cfbf511d5fea34bc54/FLAG5c9152cbf [2022-07-21 11:26:18,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe218b9ce/80cc95f4f41148cfbf511d5fea34bc54 [2022-07-21 11:26:18,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:26:18,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:26:18,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:26:18,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:26:18,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:26:18,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:26:18" (1/1) ... [2022-07-21 11:26:18,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755f6624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:18, skipping insertion in model container [2022-07-21 11:26:18,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:26:18" (1/1) ... [2022-07-21 11:26:18,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:26:18,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:26:18,626 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-21 11:26:18,627 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-21 11:26:18,843 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-21 11:26:19,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:26:19,685 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:26:19,777 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-21 11:26:19,777 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-21 11:26:19,785 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-21 11:26:20,034 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: ite8872_lpt = ite8872_lpt & 65280U [7432] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 11:26:20,073 INFO L158 Benchmark]: Toolchain (without parser) took 1920.42ms. Allocated memory was 56.6MB in the beginning and 100.7MB in the end (delta: 44.0MB). Free memory was 34.6MB in the beginning and 36.6MB in the end (delta: -2.0MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2022-07-21 11:26:20,073 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.1MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:26:20,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1917.32ms. Allocated memory was 56.6MB in the beginning and 100.7MB in the end (delta: 44.0MB). Free memory was 34.4MB in the beginning and 36.6MB in the end (delta: -2.1MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2022-07-21 11:26:20,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.1MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1917.32ms. Allocated memory was 56.6MB in the beginning and 100.7MB in the end (delta: 44.0MB). Free memory was 34.4MB in the beginning and 36.6MB in the end (delta: -2.1MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: ite8872_lpt = ite8872_lpt & 65280U [7432] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: ite8872_lpt = ite8872_lpt & 65280U [7432]: 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.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 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:26:21,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:26:21,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:26:21,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:26:21,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:26:21,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:26:21,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:26:21,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:26:21,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:26:21,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:26:21,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:26:21,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:26:21,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:26:21,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:26:21,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:26:21,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:26:21,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:26:21,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:26:21,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:26:21,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:26:21,801 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:26:21,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:26:21,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:26:21,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:26:21,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:26:21,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:26:21,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:26:21,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:26:21,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:26:21,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:26:21,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:26:21,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:26:21,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:26:21,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:26:21,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:26:21,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:26:21,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:26:21,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:26:21,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:26:21,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:26:21,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:26:21,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:26:21,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:26:21,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:26:21,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:26:21,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:26:21,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:26:21,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:26:21,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:26:21,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:26:21,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:26:21,853 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:26:21,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:26:21,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:26:21,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:26:21,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:26:21,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:26:21,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:26:21,865 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:26:21,866 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:26:21,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:26:21,866 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:26:21,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:26:21,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:26:21,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:26:21,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:26:21,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:26:21,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:26:21,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:26:21,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:26:21,868 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:26:21,868 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:26:21,869 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:26:21,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:26:21,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:26:21,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:26:21,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d894e86e86b8f1112530aa761fa16c8f0bb95df5df03f6ff46df98ca12f1f95 [2022-07-21 11:26:22,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:26:22,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:26:22,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:26:22,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:26:22,203 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:26:22,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-21 11:26:22,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d1b56fb3/53d3757af37f4684b129b82968ea9bdf/FLAG1454ea061 [2022-07-21 11:26:23,071 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:26:23,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-21 11:26:23,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d1b56fb3/53d3757af37f4684b129b82968ea9bdf/FLAG1454ea061 [2022-07-21 11:26:23,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d1b56fb3/53d3757af37f4684b129b82968ea9bdf [2022-07-21 11:26:23,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:26:23,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:26:23,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:26:23,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:26:23,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:26:23,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:26:23" (1/1) ... [2022-07-21 11:26:23,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1292382a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:23, skipping insertion in model container [2022-07-21 11:26:23,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:26:23" (1/1) ... [2022-07-21 11:26:23,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:26:23,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:26:24,129 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-21 11:26:24,130 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-21 11:26:24,350 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-21 11:26:25,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:26:25,247 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:26:25,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:26:25,351 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-21 11:26:25,352 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-21 11:26:25,360 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-21 11:26:25,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:26:25,677 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:26:25,770 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3724] [2022-07-21 11:26:25,770 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3725-3726] [2022-07-21 11:26:25,777 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i[116557,116570] [2022-07-21 11:26:26,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:26:26,140 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:26:26,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26 WrapperNode [2022-07-21 11:26:26,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:26:26,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:26:26,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:26:26,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:26:26,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,443 INFO L137 Inliner]: procedures = 312, calls = 2885, calls flagged for inlining = 153, calls inlined = 124, statements flattened = 5584 [2022-07-21 11:26:26,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:26:26,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:26:26,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:26:26,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:26:26,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:26:26,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:26:26,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:26:26,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:26:26,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (1/1) ... [2022-07-21 11:26:26,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:26:26,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:26:26,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:26:26,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:26:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:26:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-21 11:26:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:26:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:26:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:26:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:26:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:26:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:26:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:26:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure winbond_check [2022-07-21 11:26:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure winbond_check [2022-07-21 11:26:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 11:26:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 11:26:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:26:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:26:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-21 11:26:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-21 11:26:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_data_forward [2022-07-21 11:26:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_data_forward [2022-07-21 11:26:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_disable_irq [2022-07-21 11:26:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_disable_irq [2022-07-21 11:26:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:26:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:26:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure frob_set_mode [2022-07-21 11:26:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure frob_set_mode [2022-07-21 11:26:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_data [2022-07-21 11:26:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_data [2022-07-21 11:26:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_save_state [2022-07-21 11:26:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_save_state [2022-07-21 11:26:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:26:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:26:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_read_data [2022-07-21 11:26:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_read_data [2022-07-21 11:26:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:26:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:26:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:26:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure decode_winbond [2022-07-21 11:26:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_winbond [2022-07-21 11:26:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:26:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-21 11:26:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-21 11:26:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-21 11:26:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-21 11:26:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure parport_PS2_supported [2022-07-21 11:26:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_PS2_supported [2022-07-21 11:26:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:26:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:26:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:26:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_write_data [2022-07-21 11:26:26,847 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_write_data [2022-07-21 11:26:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:26:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:26:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-21 11:26:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-21 11:26:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_write_data [2022-07-21 11:26:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_write_data [2022-07-21 11:26:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:26:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_write_compat [2022-07-21 11:26:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_write_compat [2022-07-21 11:26:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:26:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:26:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-21 11:26:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-21 11:26:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:26:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure irq_probe_EPP [2022-07-21 11:26:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_probe_EPP [2022-07-21 11:26:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:26:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:26:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_read_addr [2022-07-21 11:26:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_read_addr [2022-07-21 11:26:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_unregister_port [2022-07-21 11:26:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_unregister_port [2022-07-21 11:26:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 11:26:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 11:26:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:26:26,852 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:26:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_dma [2022-07-21 11:26:26,852 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_dma [2022-07-21 11:26:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2022-07-21 11:26:26,853 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2022-07-21 11:26:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_read_data [2022-07-21 11:26:26,853 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_read_data [2022-07-21 11:26:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-07-21 11:26:26,854 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-07-21 11:26:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:26:26,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:26:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_ecp_write_addr [2022-07-21 11:26:26,855 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_ecp_write_addr [2022-07-21 11:26:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure winbond_check2 [2022-07-21 11:26:26,855 INFO L138 BoogieDeclarations]: Found implementation of procedure winbond_check2 [2022-07-21 11:26:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-21 11:26:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-21 11:26:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:26:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:26:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_pc_frob_control [2022-07-21 11:26:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_pc_frob_control [2022-07-21 11:26:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 11:26:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 11:26:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-21 11:26:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-21 11:26:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-21 11:26:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-21 11:26:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure parport_put_port [2022-07-21 11:26:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_put_port [2022-07-21 11:26:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure parport_irq_probe [2022-07-21 11:26:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_irq_probe [2022-07-21 11:26:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_control [2022-07-21 11:26:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_control [2022-07-21 11:26:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:26:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:26:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 11:26:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 11:26:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:26:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:26:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_flags [2022-07-21 11:26:26,867 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_flags [2022-07-21 11:26:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:26:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:26:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:26:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:26:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:26:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:26:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_frob_control [2022-07-21 11:26:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_frob_control [2022-07-21 11:26:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure frob_econtrol [2022-07-21 11:26:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure frob_econtrol [2022-07-21 11:26:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:26:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure find_free_superio [2022-07-21 11:26:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure find_free_superio [2022-07-21 11:26:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_data_reverse [2022-07-21 11:26:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_data_reverse [2022-07-21 11:26:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:26:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure find_superio [2022-07-21 11:26:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure find_superio [2022-07-21 11:26:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:26:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:26:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:26:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-21 11:26:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-21 11:26:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:26:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:26:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:26:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:26:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:26:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_read_nibble [2022-07-21 11:26:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_read_nibble [2022-07-21 11:26:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_init_state [2022-07-21 11:26:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_init_state [2022-07-21 11:26:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_irq [2022-07-21 11:26:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_irq [2022-07-21 11:26:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_enable_irq [2022-07-21 11:26:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_enable_irq [2022-07-21 11:26:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure parport_parse_param [2022-07-21 11:26:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_parse_param [2022-07-21 11:26:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_check [2022-07-21 11:26:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_check [2022-07-21 11:26:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2022-07-21 11:26:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2022-07-21 11:26:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_restore_state [2022-07-21 11:26:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_restore_state [2022-07-21 11:26:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure parport_ieee1284_epp_write_addr [2022-07-21 11:26:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_ieee1284_epp_write_addr [2022-07-21 11:26:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure parport_EPP_supported [2022-07-21 11:26:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_EPP_supported [2022-07-21 11:26:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_read_status [2022-07-21 11:26:26,874 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_read_status [2022-07-21 11:26:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_probe_port [2022-07-21 11:26:26,874 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_probe_port [2022-07-21 11:26:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure parport_pc_write_control [2022-07-21 11:26:26,874 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_pc_write_control [2022-07-21 11:26:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:26:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:26:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 11:26:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 11:26:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:26:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-21 11:26:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-21 11:26:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2022-07-21 11:26:26,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2022-07-21 11:26:26,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:26:26,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:26:26,877 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:26:26,877 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:26:27,532 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:26:27,535 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:26:27,658 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:26:57,002 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:26:57,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:26:57,020 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:26:57,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:57 BoogieIcfgContainer [2022-07-21 11:26:57,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:26:57,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:26:57,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:26:57,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:26:57,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:26:23" (1/3) ... [2022-07-21 11:26:57,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664f72ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:57, skipping insertion in model container [2022-07-21 11:26:57,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:26" (2/3) ... [2022-07-21 11:26:57,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664f72ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:57, skipping insertion in model container [2022-07-21 11:26:57,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:57" (3/3) ... [2022-07-21 11:26:57,031 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--parport--parport_pc.ko-entry_point.cil.out.i [2022-07-21 11:26:57,044 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:26:57,044 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:26:57,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:26:57,143 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@2e300ab3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6c031e67 [2022-07-21 11:26:57,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:26:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 1736 states, 1203 states have (on average 1.377389858686617) internal successors, (1657), 1235 states have internal predecessors, (1657), 456 states have call successors, (456), 76 states have call predecessors, (456), 75 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) [2022-07-21 11:26:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 11:26:57,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:26:57,181 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:26:57,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:26:57,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:26:57,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1925553432, now seen corresponding path program 1 times [2022-07-21 11:26:57,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:26:57,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547325467] [2022-07-21 11:26:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:26:57,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:26:57,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:26:57,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:26:57,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:27:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:27:02,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:27:02,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:27:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:27:02,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:27:02,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:27:02,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547325467] [2022-07-21 11:27:02,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547325467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:27:02,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:27:02,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:27:02,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394616897] [2022-07-21 11:27:02,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:27:02,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:27:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:27:02,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:27:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:27:02,577 INFO L87 Difference]: Start difference. First operand has 1736 states, 1203 states have (on average 1.377389858686617) internal successors, (1657), 1235 states have internal predecessors, (1657), 456 states have call successors, (456), 76 states have call predecessors, (456), 75 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 11:27:03,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:27:03,415 INFO L93 Difference]: Finished difference Result 5118 states and 7682 transitions. [2022-07-21 11:27:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:27:03,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2022-07-21 11:27:03,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:27:03,461 INFO L225 Difference]: With dead ends: 5118 [2022-07-21 11:27:03,463 INFO L226 Difference]: Without dead ends: 3324 [2022-07-21 11:27:03,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:27:03,497 INFO L413 NwaCegarLoop]: 2980 mSDtfsCounter, 2468 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:27:03,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 5481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:27:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2022-07-21 11:27:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3319. [2022-07-21 11:27:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 2302 states have (on average 1.368375325803649) internal successors, (3150), 2342 states have internal predecessors, (3150), 868 states have call successors, (868), 149 states have call predecessors, (868), 148 states have return successors, (867), 862 states have call predecessors, (867), 867 states have call successors, (867) [2022-07-21 11:27:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4885 transitions. [2022-07-21 11:27:03,782 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4885 transitions. Word has length 100 [2022-07-21 11:27:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:27:03,784 INFO L495 AbstractCegarLoop]: Abstraction has 3319 states and 4885 transitions. [2022-07-21 11:27:03,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 11:27:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4885 transitions. [2022-07-21 11:27:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-21 11:27:03,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:27:03,793 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:27:03,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 11:27:04,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:27:04,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:27:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:27:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 900359696, now seen corresponding path program 1 times [2022-07-21 11:27:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:27:04,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767716253] [2022-07-21 11:27:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:27:04,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:27:04,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:27:04,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:27:04,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:27:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:27:09,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 4704 conjuncts, 34 conjunts are in the unsatisfiable core [2022-07-21 11:27:09,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:27:09,702 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:09,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:09,879 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:09,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,048 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,208 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,356 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,503 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,662 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,807 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:10,946 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:10,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:11,090 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:11,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:11,214 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:11,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:11,346 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:11,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:11,487 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:11,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:11,618 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:11,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:27:12,276 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:27:12,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-07-21 11:27:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:27:12,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:27:12,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:27:12,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767716253] [2022-07-21 11:27:12,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767716253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:27:12,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:27:12,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:27:12,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082805053] [2022-07-21 11:27:12,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:27:12,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:27:12,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:27:12,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:27:12,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:27:12,330 INFO L87 Difference]: Start difference. First operand 3319 states and 4885 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 11:27:18,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:26,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:28,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:31,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:33,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:36,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:38,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:39,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:43,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:45,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:49,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:54,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:58,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:28:03,321 INFO L93 Difference]: Finished difference Result 8365 states and 12442 transitions. [2022-07-21 11:28:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:28:03,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2022-07-21 11:28:03,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:28:03,377 INFO L225 Difference]: With dead ends: 8365 [2022-07-21 11:28:03,378 INFO L226 Difference]: Without dead ends: 5077 [2022-07-21 11:28:03,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:28:03,401 INFO L413 NwaCegarLoop]: 2531 mSDtfsCounter, 1483 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 889 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 7377 SdHoareTripleChecker+Invalid, 3797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:28:03,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 7377 Invalid, 3797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [889 Valid, 2898 Invalid, 10 Unknown, 0 Unchecked, 50.2s Time] [2022-07-21 11:28:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2022-07-21 11:28:03,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 4929. [2022-07-21 11:28:03,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4929 states, 3395 states have (on average 1.3820324005891016) internal successors, (4692), 3515 states have internal predecessors, (4692), 1283 states have call successors, (1283), 253 states have call predecessors, (1283), 250 states have return successors, (1380), 1220 states have call predecessors, (1380), 1282 states have call successors, (1380) [2022-07-21 11:28:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4929 states to 4929 states and 7355 transitions. [2022-07-21 11:28:03,701 INFO L78 Accepts]: Start accepts. Automaton has 4929 states and 7355 transitions. Word has length 121 [2022-07-21 11:28:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:28:03,702 INFO L495 AbstractCegarLoop]: Abstraction has 4929 states and 7355 transitions. [2022-07-21 11:28:03,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 11:28:03,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4929 states and 7355 transitions. [2022-07-21 11:28:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 11:28:03,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:28:03,712 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:28:03,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:28:03,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:28:03,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:28:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:28:03,926 INFO L85 PathProgramCache]: Analyzing trace with hash -808022057, now seen corresponding path program 1 times [2022-07-21 11:28:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:28:03,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090674373] [2022-07-21 11:28:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:28:03,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:28:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:28:03,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:28:03,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:28:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:28:08,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 34 conjunts are in the unsatisfiable core [2022-07-21 11:28:08,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:28:09,145 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:09,296 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:09,423 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:09,546 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:09,667 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:09,807 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:09,930 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:09,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,048 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,182 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,322 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,452 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,562 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,692 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:10,818 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:10,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 17 [2022-07-21 11:28:11,873 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 11:28:11,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-07-21 11:28:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:28:11,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:28:11,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:28:11,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090674373] [2022-07-21 11:28:11,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090674373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:28:11,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:28:11,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:28:11,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741037555] [2022-07-21 11:28:11,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:28:11,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:28:11,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:28:11,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:28:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:28:11,921 INFO L87 Difference]: Start difference. First operand 4929 states and 7355 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 11:28:18,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:26,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:28,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:29,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:31,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:33,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:36,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:40,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:42,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:46,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:50,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:53,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:58,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:00,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:03,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:05,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:07,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:09,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:29:13,782 INFO L93 Difference]: Finished difference Result 9961 states and 14886 transitions. [2022-07-21 11:29:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:29:13,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2022-07-21 11:29:13,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:29:13,828 INFO L225 Difference]: With dead ends: 9961 [2022-07-21 11:29:13,828 INFO L226 Difference]: Without dead ends: 5063 [2022-07-21 11:29:13,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:29:13,861 INFO L413 NwaCegarLoop]: 2771 mSDtfsCounter, 1373 mSDsluCounter, 5136 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 827 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 7907 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:29:13,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 7907 Invalid, 3757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [827 Valid, 2918 Invalid, 12 Unknown, 0 Unchecked, 61.2s Time] [2022-07-21 11:29:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2022-07-21 11:29:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 4915. [2022-07-21 11:29:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 3383 states have (on average 1.3810227608631391) internal successors, (4672), 3503 states have internal predecessors, (4672), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 250 states have return successors, (1376), 1218 states have call predecessors, (1376), 1280 states have call successors, (1376) [2022-07-21 11:29:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7329 transitions. [2022-07-21 11:29:14,231 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7329 transitions. Word has length 124 [2022-07-21 11:29:14,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:29:14,232 INFO L495 AbstractCegarLoop]: Abstraction has 4915 states and 7329 transitions. [2022-07-21 11:29:14,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 11:29:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7329 transitions. [2022-07-21 11:29:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-21 11:29:14,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:29:14,238 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:29:14,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:29:14,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:29:14,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:29:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:29:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1045851496, now seen corresponding path program 1 times [2022-07-21 11:29:14,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:29:14,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397914407] [2022-07-21 11:29:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:29:14,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:29:14,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:29:14,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:29:14,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:29:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:29:19,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 4785 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:29:19,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:29:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:29:19,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:29:19,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:29:19,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397914407] [2022-07-21 11:29:19,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397914407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:29:19,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:29:19,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:29:19,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294097778] [2022-07-21 11:29:19,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:29:19,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:29:19,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:29:19,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:29:19,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:29:19,814 INFO L87 Difference]: Start difference. First operand 4915 states and 7329 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 11:29:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:29:20,419 INFO L93 Difference]: Finished difference Result 10968 states and 16540 transitions. [2022-07-21 11:29:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 11:29:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2022-07-21 11:29:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:29:20,465 INFO L225 Difference]: With dead ends: 10968 [2022-07-21 11:29:20,465 INFO L226 Difference]: Without dead ends: 6084 [2022-07-21 11:29:20,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:29:20,492 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 648 mSDsluCounter, 15946 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 19277 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:29:20,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 19277 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:29:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2022-07-21 11:29:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 4939. [2022-07-21 11:29:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3399 states have (on average 1.3792291850544278) internal successors, (4688), 3521 states have internal predecessors, (4688), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1392), 1224 states have call predecessors, (1392), 1280 states have call successors, (1392) [2022-07-21 11:29:20,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7361 transitions. [2022-07-21 11:29:20,860 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7361 transitions. Word has length 134 [2022-07-21 11:29:20,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:29:20,862 INFO L495 AbstractCegarLoop]: Abstraction has 4939 states and 7361 transitions. [2022-07-21 11:29:20,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 11:29:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7361 transitions. [2022-07-21 11:29:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 11:29:20,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:29:20,868 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:29:21,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:29:21,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:29:21,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:29:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:29:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1068877759, now seen corresponding path program 1 times [2022-07-21 11:29:21,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:29:21,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163176190] [2022-07-21 11:29:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:29:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:29:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:29:21,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:29:21,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:29:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:29:26,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:29:26,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:29:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:29:26,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:29:26,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:29:26,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163176190] [2022-07-21 11:29:26,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163176190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:29:26,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:29:26,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:29:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065976274] [2022-07-21 11:29:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:29:26,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:29:26,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:29:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:29:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:29:26,834 INFO L87 Difference]: Start difference. First operand 4939 states and 7361 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 11:29:27,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:29:27,248 INFO L93 Difference]: Finished difference Result 11744 states and 17845 transitions. [2022-07-21 11:29:27,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:29:27,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2022-07-21 11:29:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:29:27,310 INFO L225 Difference]: With dead ends: 11744 [2022-07-21 11:29:27,311 INFO L226 Difference]: Without dead ends: 6836 [2022-07-21 11:29:27,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:29:27,336 INFO L413 NwaCegarLoop]: 3438 mSDtfsCounter, 632 mSDsluCounter, 16392 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 19830 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:29:27,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 19830 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:29:27,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2022-07-21 11:29:27,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 4947. [2022-07-21 11:29:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4947 states, 3407 states have (on average 1.3783387144115058) internal successors, (4696), 3525 states have internal predecessors, (4696), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1392), 1228 states have call predecessors, (1392), 1280 states have call successors, (1392) [2022-07-21 11:29:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4947 states to 4947 states and 7369 transitions. [2022-07-21 11:29:27,657 INFO L78 Accepts]: Start accepts. Automaton has 4947 states and 7369 transitions. Word has length 138 [2022-07-21 11:29:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:29:27,657 INFO L495 AbstractCegarLoop]: Abstraction has 4947 states and 7369 transitions. [2022-07-21 11:29:27,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 11:29:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4947 states and 7369 transitions. [2022-07-21 11:29:27,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-21 11:29:27,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:29:27,662 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:29:27,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:29:27,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:29:27,875 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:29:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:29:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 416898790, now seen corresponding path program 1 times [2022-07-21 11:29:27,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:29:27,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008126902] [2022-07-21 11:29:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:29:27,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:29:27,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:29:27,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:29:27,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:29:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:29:33,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 4797 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-21 11:29:33,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:29:33,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-07-21 11:29:33,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-07-21 11:29:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:29:33,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:29:33,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:29:33,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008126902] [2022-07-21 11:29:33,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008126902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:29:33,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:29:33,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:29:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095479305] [2022-07-21 11:29:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:29:33,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:29:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:29:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:29:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:29:33,742 INFO L87 Difference]: Start difference. First operand 4947 states and 7369 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 11:29:37,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:39,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:41,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:43,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:45,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:47,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:49,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:53,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:29:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:29:53,703 INFO L93 Difference]: Finished difference Result 9859 states and 14689 transitions. [2022-07-21 11:29:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 11:29:53,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2022-07-21 11:29:53,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:29:53,749 INFO L225 Difference]: With dead ends: 9859 [2022-07-21 11:29:53,749 INFO L226 Difference]: Without dead ends: 4943 [2022-07-21 11:29:53,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:29:53,767 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 21 mSDsluCounter, 14813 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 17309 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:29:53,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 17309 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 6 Unknown, 0 Unchecked, 19.6s Time] [2022-07-21 11:29:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-07-21 11:29:54,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4943. [2022-07-21 11:29:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 3403 states have (on average 1.3787834263884808) internal successors, (4692), 3523 states have internal predecessors, (4692), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 258 states have return successors, (1388), 1226 states have call predecessors, (1388), 1280 states have call successors, (1388) [2022-07-21 11:29:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7361 transitions. [2022-07-21 11:29:54,041 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7361 transitions. Word has length 139 [2022-07-21 11:29:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:29:54,041 INFO L495 AbstractCegarLoop]: Abstraction has 4943 states and 7361 transitions. [2022-07-21 11:29:54,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 11:29:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7361 transitions. [2022-07-21 11:29:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 11:29:54,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:29:54,047 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:29:54,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:29:54,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:29:54,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:29:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:29:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1098571227, now seen corresponding path program 1 times [2022-07-21 11:29:54,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:29:54,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579163028] [2022-07-21 11:29:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:29:54,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:29:54,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:29:54,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:29:54,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:29:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:29:59,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:29:59,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:29:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:29:59,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:29:59,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:29:59,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579163028] [2022-07-21 11:29:59,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579163028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:29:59,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:29:59,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:29:59,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967591762] [2022-07-21 11:29:59,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:29:59,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:29:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:29:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:29:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:29:59,535 INFO L87 Difference]: Start difference. First operand 4943 states and 7361 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 11:29:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:29:59,854 INFO L93 Difference]: Finished difference Result 11724 states and 17791 transitions. [2022-07-21 11:29:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:29:59,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2022-07-21 11:29:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:29:59,891 INFO L225 Difference]: With dead ends: 11724 [2022-07-21 11:29:59,892 INFO L226 Difference]: Without dead ends: 6812 [2022-07-21 11:29:59,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:29:59,911 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 618 mSDsluCounter, 16172 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 19559 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:29:59,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 19559 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:29:59,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2022-07-21 11:30:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 4963. [2022-07-21 11:30:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 3419 states have (on average 1.377010821877742) internal successors, (4708), 3535 states have internal predecessors, (4708), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 262 states have return successors, (1394), 1234 states have call predecessors, (1394), 1280 states have call successors, (1394) [2022-07-21 11:30:00,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 7383 transitions. [2022-07-21 11:30:00,205 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 7383 transitions. Word has length 138 [2022-07-21 11:30:00,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:30:00,205 INFO L495 AbstractCegarLoop]: Abstraction has 4963 states and 7383 transitions. [2022-07-21 11:30:00,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 11:30:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 7383 transitions. [2022-07-21 11:30:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-21 11:30:00,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:30:00,211 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:30:00,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:30:00,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:30:00,431 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:30:00,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:30:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash -76090973, now seen corresponding path program 1 times [2022-07-21 11:30:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:30:00,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034431177] [2022-07-21 11:30:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:30:00,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:30:00,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:30:00,437 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:30:00,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:30:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:30:05,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 4797 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-21 11:30:05,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:30:05,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-07-21 11:30:05,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-07-21 11:30:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:30:06,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:30:06,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:30:06,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034431177] [2022-07-21 11:30:06,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034431177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:30:06,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:30:06,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:30:06,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292336602] [2022-07-21 11:30:06,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:30:06,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:30:06,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:30:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:30:06,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:30:06,069 INFO L87 Difference]: Start difference. First operand 4963 states and 7383 transitions. Second operand has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 11:30:09,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:11,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:13,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:15,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:16,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:19,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:21,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:24,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:30:25,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:30:25,563 INFO L93 Difference]: Finished difference Result 9891 states and 14717 transitions. [2022-07-21 11:30:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 11:30:25,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2022-07-21 11:30:25,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:30:25,597 INFO L225 Difference]: With dead ends: 9891 [2022-07-21 11:30:25,598 INFO L226 Difference]: Without dead ends: 4953 [2022-07-21 11:30:25,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:30:25,617 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 21 mSDsluCounter, 14813 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 17309 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:30:25,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 17309 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 7 Unknown, 0 Unchecked, 19.2s Time] [2022-07-21 11:30:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2022-07-21 11:30:25,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 4953. [2022-07-21 11:30:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 3411 states have (on average 1.3778950454412195) internal successors, (4700), 3529 states have internal predecessors, (4700), 1281 states have call successors, (1281), 253 states have call predecessors, (1281), 260 states have return successors, (1388), 1230 states have call predecessors, (1388), 1280 states have call successors, (1388) [2022-07-21 11:30:25,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 7369 transitions. [2022-07-21 11:30:25,890 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 7369 transitions. Word has length 139 [2022-07-21 11:30:25,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:30:25,890 INFO L495 AbstractCegarLoop]: Abstraction has 4953 states and 7369 transitions. [2022-07-21 11:30:25,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.833333333333334) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 11:30:25,891 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 7369 transitions. [2022-07-21 11:30:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-21 11:30:25,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:30:25,896 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:30:26,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:30:26,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:30:26,116 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:30:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:30:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2120448035, now seen corresponding path program 1 times [2022-07-21 11:30:26,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:30:26,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461346965] [2022-07-21 11:30:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:30:26,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:30:26,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:30:26,121 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:30:26,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:30:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:30:32,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 4816 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:30:32,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:30:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-21 11:30:32,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:30:32,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:30:32,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461346965] [2022-07-21 11:30:32,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461346965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:30:32,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:30:32,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:30:32,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10630767] [2022-07-21 11:30:32,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:30:32,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:30:32,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:30:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:30:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:30:32,342 INFO L87 Difference]: Start difference. First operand 4953 states and 7369 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)