./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.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 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:24:06,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:24:06,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:24:06,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:24:06,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:24:06,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:24:06,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:24:06,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:24:06,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:24:06,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:24:06,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:24:06,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:24:06,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:24:06,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:24:06,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:24:06,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:24:06,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:24:06,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:24:06,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:24:06,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:24:06,895 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:24:06,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:24:06,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:24:06,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:24:06,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:24:06,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:24:06,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:24:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:24:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:24:06,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:24:06,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:24:06,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:24:06,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:24:06,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:24:06,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:24:06,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:24:06,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:24:06,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:24:06,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:24:06,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:24:06,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:24:06,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:24:06,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:24:06,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:24:06,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:24:06,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:24:06,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:24:06,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:24:06,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:24:06,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:24:06,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:24:06,951 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:24:06,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:24:06,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:24:06,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:24:06,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:24:06,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:24:06,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:24:06,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:24:06,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:24:06,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:24:06,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:24:06,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:24:06,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:24:06,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:24:06,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:24:06,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:24:06,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:24:06,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:24:06,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:24:06,957 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:24:06,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:24:06,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:24:06,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2022-07-12 14:24:07,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:24:07,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:24:07,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:24:07,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:24:07,243 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:24:07,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-07-12 14:24:07,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afba4f1cd/9c1c0a0061ac40a781fec6c4f208ec16/FLAG9bb4cf0d4 [2022-07-12 14:24:08,248 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:24:08,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-07-12 14:24:08,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afba4f1cd/9c1c0a0061ac40a781fec6c4f208ec16/FLAG9bb4cf0d4 [2022-07-12 14:24:08,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afba4f1cd/9c1c0a0061ac40a781fec6c4f208ec16 [2022-07-12 14:24:08,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:24:08,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:24:08,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:24:08,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:24:08,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:24:08,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:24:08" (1/1) ... [2022-07-12 14:24:08,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@468833bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:08, skipping insertion in model container [2022-07-12 14:24:08,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:24:08" (1/1) ... [2022-07-12 14:24:08,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:24:08,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:24:12,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-07-12 14:24:12,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:24:12,570 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:24:12,847 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: eeprom_val = (unsigned int )eeprom_val & 255U [9822] 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) [2022-07-12 14:24:12,857 INFO L158 Benchmark]: Toolchain (without parser) took 4192.41ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 53.5MB in the beginning and 129.0MB in the end (delta: -75.4MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2022-07-12 14:24:12,857 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:24:12,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4190.13ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 53.5MB in the beginning and 130.0MB in the end (delta: -76.5MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2022-07-12 14:24:12,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4190.13ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 53.5MB in the beginning and 130.0MB in the end (delta: -76.5MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9822] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9822]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.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 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:24:14,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:24:14,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:24:14,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:24:14,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:24:14,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:24:14,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:24:14,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:24:14,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:24:14,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:24:14,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:24:14,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:24:14,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:24:14,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:24:14,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:24:14,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:24:14,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:24:14,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:24:14,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:24:14,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:24:14,768 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:24:14,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:24:14,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:24:14,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:24:14,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:24:14,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:24:14,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:24:14,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:24:14,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:24:14,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:24:14,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:24:14,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:24:14,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:24:14,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:24:14,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:24:14,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:24:14,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:24:14,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:24:14,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:24:14,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:24:14,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:24:14,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:24:14,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:24:14,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:24:14,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:24:14,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:24:14,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:24:14,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:24:14,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:24:14,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:24:14,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:24:14,835 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:24:14,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:24:14,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:24:14,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:24:14,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:24:14,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:24:14,844 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:24:14,844 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:24:14,844 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:24:14,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:24:14,845 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:24:14,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:24:14,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:24:14,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:24:14,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:24:14,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:24:14,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:24:14,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:24:14,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:24:14,846 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:24:14,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:24:14,847 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:24:14,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:24:14,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:24:14,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:24:14,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2022-07-12 14:24:15,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:24:15,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:24:15,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:24:15,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:24:15,159 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:24:15,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-07-12 14:24:15,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba8d5124/95d6c81fbb7c44efae540a679444f303/FLAG7fe7977bb [2022-07-12 14:24:16,124 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:24:16,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-07-12 14:24:16,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba8d5124/95d6c81fbb7c44efae540a679444f303/FLAG7fe7977bb [2022-07-12 14:24:16,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba8d5124/95d6c81fbb7c44efae540a679444f303 [2022-07-12 14:24:16,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:24:16,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:24:16,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:24:16,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:24:16,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:24:16,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:24:16" (1/1) ... [2022-07-12 14:24:16,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23785973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:16, skipping insertion in model container [2022-07-12 14:24:16,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:24:16" (1/1) ... [2022-07-12 14:24:16,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:24:16,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:24:19,927 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 14:24:20,118 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 14:24:20,280 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 14:24:20,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-07-12 14:24:20,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:24:20,785 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:24:20,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:24:21,360 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-07-12 14:24:21,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:24:21,404 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:24:21,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-07-12 14:24:21,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:24:22,030 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:24:22,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22 WrapperNode [2022-07-12 14:24:22,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:24:22,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:24:22,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:24:22,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:24:22,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,361 INFO L137 Inliner]: procedures = 455, calls = 4514, calls flagged for inlining = 181, calls inlined = 178, statements flattened = 8094 [2022-07-12 14:24:22,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:24:22,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:24:22,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:24:22,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:24:22,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:24:22,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:24:22,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:24:22,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:24:22,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (1/1) ... [2022-07-12 14:24:22,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:24:22,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:24:22,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 14:24:22,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 14:24:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-12 14:24:22,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-12 14:24:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-07-12 14:24:22,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-07-12 14:24:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-07-12 14:24:22,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-07-12 14:24:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-12 14:24:22,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-12 14:24:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 14:24:22,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 14:24:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:24:22,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:24:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:24:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:24:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:24:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:24:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-07-12 14:24:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-07-12 14:24:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-07-12 14:24:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-07-12 14:24:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-07-12 14:24:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-07-12 14:24:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-12 14:24:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-12 14:24:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-07-12 14:24:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-07-12 14:24:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-12 14:24:22,898 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-12 14:24:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 14:24:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 14:24:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-07-12 14:24:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-07-12 14:24:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 14:24:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 14:24:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 14:24:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 14:24:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-07-12 14:24:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-07-12 14:24:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-07-12 14:24:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-07-12 14:24:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-12 14:24:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-12 14:24:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-07-12 14:24:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-07-12 14:24:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-07-12 14:24:22,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-07-12 14:24:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-07-12 14:24:22,903 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-07-12 14:24:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 14:24:22,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 14:24:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 14:24:22,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 14:24:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:24:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-12 14:24:22,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-12 14:24:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 14:24:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:24:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:24:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:24:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-12 14:24:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-12 14:24:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 14:24:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 14:24:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-07-12 14:24:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-07-12 14:24:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-12 14:24:22,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-12 14:24:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 14:24:22,907 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 14:24:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 14:24:22,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 14:24:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-07-12 14:24:22,908 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-07-12 14:24:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-12 14:24:22,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-12 14:24:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-07-12 14:24:22,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-07-12 14:24:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_10 [2022-07-12 14:24:22,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_10 [2022-07-12 14:24:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 14:24:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 14:24:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-07-12 14:24:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-07-12 14:24:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:24:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:24:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-12 14:24:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-12 14:24:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:24:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:24:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-12 14:24:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-12 14:24:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-07-12 14:24:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-07-12 14:24:22,912 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-07-12 14:24:22,912 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-07-12 14:24:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 14:24:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 14:24:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 14:24:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 14:24:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-12 14:24:22,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-12 14:24:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-12 14:24:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-12 14:24:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-07-12 14:24:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-07-12 14:24:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:24:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:24:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-12 14:24:22,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-12 14:24:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:24:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:24:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 14:24:22,918 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 14:24:22,919 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-12 14:24:22,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-12 14:24:22,920 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-12 14:24:22,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-12 14:24:22,920 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 14:24:22,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 14:24:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:24:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:24:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:24:22,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:24:22,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:24:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:24:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_10 [2022-07-12 14:24:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_10 [2022-07-12 14:24:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-12 14:24:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-12 14:24:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-07-12 14:24:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-07-12 14:24:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-07-12 14:24:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-07-12 14:24:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-07-12 14:24:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-07-12 14:24:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-07-12 14:24:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-07-12 14:24:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-12 14:24:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-12 14:24:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-07-12 14:24:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-07-12 14:24:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-07-12 14:24:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-07-12 14:24:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:24:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-07-12 14:24:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-07-12 14:24:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-12 14:24:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-12 14:24:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:24:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:24:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:24:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 14:24:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 14:24:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-07-12 14:24:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-07-12 14:24:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:24:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:24:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:24:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:24:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:24:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-07-12 14:24:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-07-12 14:24:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:24:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:24:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-07-12 14:24:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-07-12 14:24:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-12 14:24:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-12 14:24:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-07-12 14:24:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-07-12 14:24:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-07-12 14:24:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-07-12 14:24:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_9 [2022-07-12 14:24:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_9 [2022-07-12 14:24:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-07-12 14:24:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-07-12 14:24:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-12 14:24:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-12 14:24:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-07-12 14:24:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-07-12 14:24:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-07-12 14:24:22,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-07-12 14:24:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-12 14:24:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-12 14:24:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-07-12 14:24:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-07-12 14:24:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-07-12 14:24:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-07-12 14:24:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:24:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:24:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-12 14:24:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-12 14:24:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 14:24:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 14:24:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-07-12 14:24:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-07-12 14:24:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:24:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:24:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-12 14:24:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-12 14:24:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:24:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:24:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-07-12 14:24:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-07-12 14:24:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-12 14:24:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-12 14:24:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:24:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-07-12 14:24:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-07-12 14:24:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:24:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-07-12 14:24:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-07-12 14:24:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 14:24:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 14:24:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:24:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:24:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:24:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:24:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:24:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-07-12 14:24:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-07-12 14:24:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 14:24:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 14:24:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 14:24:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 14:24:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-07-12 14:24:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-07-12 14:24:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-07-12 14:24:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-07-12 14:24:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-07-12 14:24:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-07-12 14:24:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-07-12 14:24:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-07-12 14:24:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_beacon_work [2022-07-12 14:24:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_beacon_work [2022-07-12 14:24:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-07-12 14:24:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-07-12 14:24:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 14:24:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 14:24:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-12 14:24:22,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-12 14:24:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-07-12 14:24:22,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-07-12 14:24:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-07-12 14:24:22,945 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-07-12 14:24:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:24:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:24:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-12 14:24:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-12 14:24:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:24:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:24:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-12 14:24:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-12 14:24:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:24:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:24:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-07-12 14:24:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-07-12 14:24:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-07-12 14:24:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-07-12 14:24:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-07-12 14:24:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-07-12 14:24:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:24:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:24:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 14:24:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 14:24:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-12 14:24:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-12 14:24:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-07-12 14:24:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-07-12 14:24:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-12 14:24:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-12 14:24:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-07-12 14:24:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-07-12 14:24:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 14:24:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 14:24:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 14:24:22,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 14:24:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-12 14:24:22,950 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-12 14:24:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-07-12 14:24:22,950 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-07-12 14:24:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-07-12 14:24:22,950 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-07-12 14:24:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-07-12 14:24:22,951 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-07-12 14:24:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-07-12 14:24:22,951 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-07-12 14:24:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-12 14:24:22,951 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-12 14:24:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-12 14:24:22,951 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-12 14:24:24,022 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:24:24,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:24:26,828 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:25:18,793 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:25:18,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:25:18,826 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2022-07-12 14:25:18,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:25:18 BoogieIcfgContainer [2022-07-12 14:25:18,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:25:18,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:25:18,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:25:18,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:25:18,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:24:16" (1/3) ... [2022-07-12 14:25:18,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e68ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:25:18, skipping insertion in model container [2022-07-12 14:25:18,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:24:22" (2/3) ... [2022-07-12 14:25:18,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e68ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:25:18, skipping insertion in model container [2022-07-12 14:25:18,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:25:18" (3/3) ... [2022-07-12 14:25:18,839 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-07-12 14:25:18,851 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:25:18,852 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:25:18,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:25:18,998 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@5d9e39ef, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@319503a3 [2022-07-12 14:25:18,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:25:19,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 3746 states, 2156 states have (on average 1.312152133580705) internal successors, (2829), 2311 states have internal predecessors, (2829), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) [2022-07-12 14:25:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 14:25:19,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:25:19,043 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:25:19,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:25:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:25:19,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1156017786, now seen corresponding path program 1 times [2022-07-12 14:25:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:25:19,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898293967] [2022-07-12 14:25:19,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:25:19,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:25:19,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:25:19,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:25:19,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 14:25:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:25:29,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 4399 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 14:25:29,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:25:29,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-07-12 14:25:29,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:25:29,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:25:29,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898293967] [2022-07-12 14:25:29,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898293967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:25:29,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:25:29,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:25:29,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4983190] [2022-07-12 14:25:29,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:25:29,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 14:25:29,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:25:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 14:25:29,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:25:29,467 INFO L87 Difference]: Start difference. First operand has 3746 states, 2156 states have (on average 1.312152133580705) internal successors, (2829), 2311 states have internal predecessors, (2829), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 14:25:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:25:29,768 INFO L93 Difference]: Finished difference Result 7253 states and 11443 transitions. [2022-07-12 14:25:29,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 14:25:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 279 [2022-07-12 14:25:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:25:29,824 INFO L225 Difference]: With dead ends: 7253 [2022-07-12 14:25:29,824 INFO L226 Difference]: Without dead ends: 3484 [2022-07-12 14:25:29,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:25:29,865 INFO L413 NwaCegarLoop]: 5416 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5416 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:25:29,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5416 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 14:25:29,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-07-12 14:25:30,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3484. [2022-07-12 14:25:30,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 1911 states have (on average 1.3003663003663004) internal successors, (2485), 1980 states have internal predecessors, (2485), 1444 states have call successors, (1444), 129 states have call predecessors, (1444), 128 states have return successors, (1443), 1406 states have call predecessors, (1443), 1443 states have call successors, (1443) [2022-07-12 14:25:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 5372 transitions. [2022-07-12 14:25:30,231 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 5372 transitions. Word has length 279 [2022-07-12 14:25:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:25:30,234 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 5372 transitions. [2022-07-12 14:25:30,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 14:25:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 5372 transitions. [2022-07-12 14:25:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 14:25:30,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:25:30,243 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:25:30,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:25:30,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:25:30,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:25:30,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:25:30,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1870882658, now seen corresponding path program 1 times [2022-07-12 14:25:30,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:25:30,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106562163] [2022-07-12 14:25:30,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:25:30,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:25:30,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:25:30,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:25:30,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 14:25:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:25:43,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 4399 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:25:43,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:25:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1014 trivial. 0 not checked. [2022-07-12 14:25:44,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:25:44,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:25:44,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106562163] [2022-07-12 14:25:44,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106562163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:25:44,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:25:44,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:25:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130149535] [2022-07-12 14:25:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:25:44,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:25:44,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:25:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:25:44,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:25:44,299 INFO L87 Difference]: Start difference. First operand 3484 states and 5372 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 14:25:45,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:25:45,865 INFO L93 Difference]: Finished difference Result 6946 states and 10737 transitions. [2022-07-12 14:25:45,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 14:25:45,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 279 [2022-07-12 14:25:45,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:25:45,906 INFO L225 Difference]: With dead ends: 6946 [2022-07-12 14:25:45,907 INFO L226 Difference]: Without dead ends: 3485 [2022-07-12 14:25:46,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:25:46,035 INFO L413 NwaCegarLoop]: 5357 mSDtfsCounter, 6 mSDsluCounter, 21394 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 26751 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:25:46,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 26751 Invalid, 116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 14:25:46,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2022-07-12 14:25:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 3485. [2022-07-12 14:25:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3485 states, 1912 states have (on average 1.3002092050209204) internal successors, (2486), 1981 states have internal predecessors, (2486), 1444 states have call successors, (1444), 129 states have call predecessors, (1444), 128 states have return successors, (1443), 1406 states have call predecessors, (1443), 1443 states have call successors, (1443) [2022-07-12 14:25:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3485 states to 3485 states and 5373 transitions. [2022-07-12 14:25:46,260 INFO L78 Accepts]: Start accepts. Automaton has 3485 states and 5373 transitions. Word has length 279 [2022-07-12 14:25:46,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:25:46,262 INFO L495 AbstractCegarLoop]: Abstraction has 3485 states and 5373 transitions. [2022-07-12 14:25:46,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 14:25:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3485 states and 5373 transitions. [2022-07-12 14:25:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-12 14:25:46,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:25:46,269 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:25:46,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 14:25:46,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:25:46,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:25:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:25:46,484 INFO L85 PathProgramCache]: Analyzing trace with hash -441142654, now seen corresponding path program 1 times [2022-07-12 14:25:46,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:25:46,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775439812] [2022-07-12 14:25:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:25:46,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:25:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:25:46,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:25:46,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 14:26:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:26:01,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 4465 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:26:01,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:26:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 60 proven. 1 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2022-07-12 14:26:01,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:26:03,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-07-12 14:26:03,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:26:03,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775439812] [2022-07-12 14:26:03,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775439812] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:26:03,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:26:03,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 14:26:03,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628895711] [2022-07-12 14:26:03,312 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:26:03,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:26:03,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:26:03,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:26:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:26:03,314 INFO L87 Difference]: Start difference. First operand 3485 states and 5373 transitions. Second operand has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 14:26:05,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:26:05,846 INFO L93 Difference]: Finished difference Result 6958 states and 10753 transitions. [2022-07-12 14:26:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 14:26:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 285 [2022-07-12 14:26:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:26:05,889 INFO L225 Difference]: With dead ends: 6958 [2022-07-12 14:26:05,889 INFO L226 Difference]: Without dead ends: 3501 [2022-07-12 14:26:05,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:26:05,921 INFO L413 NwaCegarLoop]: 5360 mSDtfsCounter, 14 mSDsluCounter, 32107 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 37467 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 14:26:05,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 37467 Invalid, 213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 14:26:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2022-07-12 14:26:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3501. [2022-07-12 14:26:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 1923 states have (on average 1.2990119604784192) internal successors, (2498), 1992 states have internal predecessors, (2498), 1446 states have call successors, (1446), 132 states have call predecessors, (1446), 131 states have return successors, (1445), 1408 states have call predecessors, (1445), 1445 states have call successors, (1445) [2022-07-12 14:26:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 5389 transitions. [2022-07-12 14:26:06,165 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 5389 transitions. Word has length 285 [2022-07-12 14:26:06,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:26:06,167 INFO L495 AbstractCegarLoop]: Abstraction has 3501 states and 5389 transitions. [2022-07-12 14:26:06,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 14:26:06,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 5389 transitions. [2022-07-12 14:26:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-12 14:26:06,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:26:06,172 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:26:06,391 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2022-07-12 14:26:06,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:26:06,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:26:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:26:06,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1156138526, now seen corresponding path program 2 times [2022-07-12 14:26:06,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:26:06,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477083058] [2022-07-12 14:26:06,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:26:06,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:26:06,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:26:06,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:26:06,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:26:06,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 14:26:15,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:26:15,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:26:16,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:26:16,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:26:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2022-07-12 14:26:16,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:26:16,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:26:16,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477083058] [2022-07-12 14:26:16,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477083058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:26:16,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:26:16,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:26:16,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380003535] [2022-07-12 14:26:16,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:26:16,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:26:16,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:26:16,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:26:16,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:26:16,312 INFO L87 Difference]: Start difference. First operand 3501 states and 5389 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 14:26:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:26:17,522 INFO L93 Difference]: Finished difference Result 9835 states and 15173 transitions. [2022-07-12 14:26:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:26:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 291 [2022-07-12 14:26:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:26:17,584 INFO L225 Difference]: With dead ends: 9835 [2022-07-12 14:26:17,584 INFO L226 Difference]: Without dead ends: 6384 [2022-07-12 14:26:17,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:26:17,620 INFO L413 NwaCegarLoop]: 7448 mSDtfsCounter, 4502 mSDsluCounter, 5249 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4502 SdHoareTripleChecker+Valid, 12697 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:26:17,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4502 Valid, 12697 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 14:26:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2022-07-12 14:26:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 6380. [2022-07-12 14:26:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6380 states, 3452 states have (on average 1.2989571263035922) internal successors, (4484), 3569 states have internal predecessors, (4484), 2678 states have call successors, (2678), 248 states have call predecessors, (2678), 249 states have return successors, (2686), 2624 states have call predecessors, (2686), 2677 states have call successors, (2686) [2022-07-12 14:26:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6380 states to 6380 states and 9848 transitions. [2022-07-12 14:26:18,099 INFO L78 Accepts]: Start accepts. Automaton has 6380 states and 9848 transitions. Word has length 291 [2022-07-12 14:26:18,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:26:18,101 INFO L495 AbstractCegarLoop]: Abstraction has 6380 states and 9848 transitions. [2022-07-12 14:26:18,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 14:26:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 6380 states and 9848 transitions. [2022-07-12 14:26:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-12 14:26:18,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:26:18,111 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:26:18,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:26:18,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:26:18,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:26:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:26:18,328 INFO L85 PathProgramCache]: Analyzing trace with hash -893825162, now seen corresponding path program 1 times [2022-07-12 14:26:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:26:18,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159469106] [2022-07-12 14:26:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:26:18,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:26:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:26:18,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:26:18,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 14:26:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:26:33,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 4846 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 14:26:33,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:26:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2022-07-12 14:26:33,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:26:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-07-12 14:26:35,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:26:35,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159469106] [2022-07-12 14:26:35,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159469106] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:26:35,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:26:35,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 14:26:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255724655] [2022-07-12 14:26:35,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:26:35,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 14:26:35,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:26:35,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 14:26:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 14:26:35,765 INFO L87 Difference]: Start difference. First operand 6380 states and 9848 transitions. Second operand has 13 states, 11 states have (on average 10.818181818181818) internal successors, (119), 13 states have internal predecessors, (119), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-07-12 14:26:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:26:38,372 INFO L93 Difference]: Finished difference Result 12750 states and 19715 transitions. [2022-07-12 14:26:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 14:26:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.818181818181818) internal successors, (119), 13 states have internal predecessors, (119), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 340 [2022-07-12 14:26:38,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:26:38,447 INFO L225 Difference]: With dead ends: 12750 [2022-07-12 14:26:38,448 INFO L226 Difference]: Without dead ends: 6393 [2022-07-12 14:26:38,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-12 14:26:38,488 INFO L413 NwaCegarLoop]: 5360 mSDtfsCounter, 23 mSDsluCounter, 26768 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 32128 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 14:26:38,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 32128 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 14:26:38,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6393 states. [2022-07-12 14:26:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6393 to 6393. [2022-07-12 14:26:38,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6393 states, 3462 states have (on average 1.2986712882726748) internal successors, (4496), 3579 states have internal predecessors, (4496), 2679 states have call successors, (2679), 250 states have call predecessors, (2679), 251 states have return successors, (2687), 2625 states have call predecessors, (2687), 2678 states have call successors, (2687) [2022-07-12 14:26:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6393 states to 6393 states and 9862 transitions. [2022-07-12 14:26:38,907 INFO L78 Accepts]: Start accepts. Automaton has 6393 states and 9862 transitions. Word has length 340 [2022-07-12 14:26:38,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:26:38,908 INFO L495 AbstractCegarLoop]: Abstraction has 6393 states and 9862 transitions. [2022-07-12 14:26:38,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.818181818181818) internal successors, (119), 13 states have internal predecessors, (119), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-07-12 14:26:38,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6393 states and 9862 transitions. [2022-07-12 14:26:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-07-12 14:26:38,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:26:38,920 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:26:39,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:26:39,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:26:39,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:26:39,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:26:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash -759897951, now seen corresponding path program 1 times [2022-07-12 14:26:39,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:26:39,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286369762] [2022-07-12 14:26:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:26:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:26:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:26:39,148 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:26:39,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 14:26:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:26:53,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 4905 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 14:26:53,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:26:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2022-07-12 14:26:54,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:26:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2022-07-12 14:26:57,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:26:57,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286369762] [2022-07-12 14:26:57,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286369762] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:26:57,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:26:57,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 14:26:57,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36517156] [2022-07-12 14:26:57,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:26:57,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 14:26:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:26:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 14:26:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:26:57,448 INFO L87 Difference]: Start difference. First operand 6393 states and 9862 transitions. Second operand has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-07-12 14:27:00,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:27:00,907 INFO L93 Difference]: Finished difference Result 12770 states and 19732 transitions. [2022-07-12 14:27:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 14:27:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 347 [2022-07-12 14:27:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:27:00,974 INFO L225 Difference]: With dead ends: 12770 [2022-07-12 14:27:00,975 INFO L226 Difference]: Without dead ends: 6395 [2022-07-12 14:27:01,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:27:01,015 INFO L413 NwaCegarLoop]: 5361 mSDtfsCounter, 28 mSDsluCounter, 37462 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42823 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:27:01,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42823 Invalid, 300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 14:27:01,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6395 states. [2022-07-12 14:27:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6395 to 6395. [2022-07-12 14:27:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 3464 states have (on average 1.298498845265589) internal successors, (4498), 3581 states have internal predecessors, (4498), 2679 states have call successors, (2679), 250 states have call predecessors, (2679), 251 states have return successors, (2687), 2625 states have call predecessors, (2687), 2678 states have call successors, (2687) [2022-07-12 14:27:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 9864 transitions. [2022-07-12 14:27:01,461 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 9864 transitions. Word has length 347 [2022-07-12 14:27:01,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:27:01,462 INFO L495 AbstractCegarLoop]: Abstraction has 6395 states and 9864 transitions. [2022-07-12 14:27:01,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-07-12 14:27:01,462 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 9864 transitions. [2022-07-12 14:27:01,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-12 14:27:01,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:27:01,473 INFO L195 NwaCegarLoop]: trace histogram [22, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:27:01,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:27:01,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:27:01,688 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:27:01,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:27:01,688 INFO L85 PathProgramCache]: Analyzing trace with hash 896705633, now seen corresponding path program 1 times [2022-07-12 14:27:01,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:27:01,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806721323] [2022-07-12 14:27:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:27:01,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:27:01,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:27:01,694 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:27:01,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 14:27:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:27:22,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 4964 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:27:22,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:27:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 269 proven. 10 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-07-12 14:27:22,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:27:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 114 proven. 41 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2022-07-12 14:27:25,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:27:25,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806721323] [2022-07-12 14:27:25,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806721323] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:27:25,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:27:25,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-12 14:27:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329625248] [2022-07-12 14:27:25,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:27:25,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 14:27:25,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:27:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 14:27:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-12 14:27:25,699 INFO L87 Difference]: Start difference. First operand 6395 states and 9864 transitions. Second operand has 17 states, 15 states have (on average 8.066666666666666) internal successors, (121), 17 states have internal predecessors, (121), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2022-07-12 14:27:29,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:27:29,384 INFO L93 Difference]: Finished difference Result 12777 states and 19743 transitions. [2022-07-12 14:27:29,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 14:27:29,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 8.066666666666666) internal successors, (121), 17 states have internal predecessors, (121), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 348 [2022-07-12 14:27:29,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:27:29,423 INFO L225 Difference]: With dead ends: 12777 [2022-07-12 14:27:29,424 INFO L226 Difference]: Without dead ends: 6405 [2022-07-12 14:27:29,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-12 14:27:29,457 INFO L413 NwaCegarLoop]: 5359 mSDtfsCounter, 40 mSDsluCounter, 53522 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 58881 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:27:29,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 58881 Invalid, 339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 14:27:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-07-12 14:27:29,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6405. [2022-07-12 14:27:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6405 states, 3473 states have (on average 1.2985891160380074) internal successors, (4510), 3590 states have internal predecessors, (4510), 2679 states have call successors, (2679), 251 states have call predecessors, (2679), 252 states have return successors, (2687), 2625 states have call predecessors, (2687), 2678 states have call successors, (2687) [2022-07-12 14:27:29,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 9876 transitions. [2022-07-12 14:27:29,798 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 9876 transitions. Word has length 348 [2022-07-12 14:27:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:27:29,799 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 9876 transitions. [2022-07-12 14:27:29,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 8.066666666666666) internal successors, (121), 17 states have internal predecessors, (121), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2022-07-12 14:27:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 9876 transitions. [2022-07-12 14:27:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-07-12 14:27:29,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:27:29,808 INFO L195 NwaCegarLoop]: trace histogram [23, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:27:30,027 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-07-12 14:27:30,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 14:27:30,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:27:30,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:27:30,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:27:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1979034623, now seen corresponding path program 2 times [2022-07-12 14:27:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:27:30,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278037258] [2022-07-12 14:27:30,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:27:30,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:27:30,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:27:30,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:27:30,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 14:27:39,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:27:39,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:27:39,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 3934 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:27:39,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:27:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1453 trivial. 0 not checked. [2022-07-12 14:27:43,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:27:43,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:27:43,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278037258] [2022-07-12 14:27:43,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278037258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:27:43,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:27:43,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:27:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240780617] [2022-07-12 14:27:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:27:43,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:27:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:27:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:27:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:27:43,800 INFO L87 Difference]: Start difference. First operand 6405 states and 9876 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 14:27:44,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:27:44,546 INFO L93 Difference]: Finished difference Result 19103 states and 29514 transitions. [2022-07-12 14:27:44,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:27:44,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 349 [2022-07-12 14:27:44,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:27:44,627 INFO L225 Difference]: With dead ends: 19103 [2022-07-12 14:27:44,628 INFO L226 Difference]: Without dead ends: 12759 [2022-07-12 14:27:44,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:27:44,667 INFO L413 NwaCegarLoop]: 6848 mSDtfsCounter, 5288 mSDsluCounter, 18994 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 25842 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:27:44,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5292 Valid, 25842 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:27:44,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2022-07-12 14:27:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 12744. [2022-07-12 14:27:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12744 states, 6906 states have (on average 1.2984361424847959) internal successors, (8967), 7140 states have internal predecessors, (8967), 5336 states have call successors, (5336), 498 states have call predecessors, (5336), 501 states have return successors, (5365), 5229 states have call predecessors, (5365), 5335 states have call successors, (5365) [2022-07-12 14:27:45,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12744 states to 12744 states and 19668 transitions. [2022-07-12 14:27:45,591 INFO L78 Accepts]: Start accepts. Automaton has 12744 states and 19668 transitions. Word has length 349 [2022-07-12 14:27:45,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:27:45,593 INFO L495 AbstractCegarLoop]: Abstraction has 12744 states and 19668 transitions. [2022-07-12 14:27:45,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 14:27:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 12744 states and 19668 transitions. [2022-07-12 14:27:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-12 14:27:45,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:27:45,600 INFO L195 NwaCegarLoop]: trace histogram [23, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:27:45,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 14:27:45,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:27:45,816 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:27:45,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:27:45,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1853553195, now seen corresponding path program 1 times [2022-07-12 14:27:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:27:45,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410979107] [2022-07-12 14:27:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:27:45,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:27:45,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:27:45,949 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:27:45,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 14:28:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:28:05,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 4969 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 14:28:05,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:28:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 292 proven. 15 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-07-12 14:28:06,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:28:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 132 proven. 51 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2022-07-12 14:28:10,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:28:10,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410979107] [2022-07-12 14:28:10,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410979107] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:28:10,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:28:10,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-12 14:28:10,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998840138] [2022-07-12 14:28:10,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:28:10,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-12 14:28:10,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:28:10,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-12 14:28:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-12 14:28:10,057 INFO L87 Difference]: Start difference. First operand 12744 states and 19668 transitions. Second operand has 19 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 4 states have call successors, (40), 2 states have call predecessors, (40), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36)