./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--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.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 e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:21:38,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:21:38,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:21:38,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:21:38,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:21:38,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:21:38,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:21:38,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:21:38,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:21:38,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:21:38,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:21:38,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:21:38,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:21:38,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:21:38,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:21:38,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:21:38,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:21:38,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:21:38,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:21:38,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:21:38,864 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:21:38,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:21:38,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:21:38,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:21:38,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:21:38,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:21:38,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:21:38,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:21:38,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:21:38,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:21:38,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:21:38,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:21:38,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:21:38,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:21:38,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:21:38,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:21:38,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:21:38,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:21:38,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:21:38,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:21:38,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:21:38,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:21:38,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:21:38,895 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:21:38,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:21:38,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:21:38,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:21:38,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:21:38,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:21:38,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:21:38,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:21:38,897 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:21:38,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:21:38,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:21:38,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:21:38,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:21:38,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:21:38,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:21:38,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:21:38,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:21:38,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:21:38,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:21:38,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:21:38,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:21:38,900 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:21:38,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:21:38,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:21:38,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-20 01:21:39,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:21:39,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:21:39,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:21:39,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:21:39,142 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:21:39,143 INFO L432 ainManager$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--fddi--defxx.ko-entry_point.cil.out.i [2022-07-20 01:21:39,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5222050/8d65ed2286f543109a3a1caf6a6ff9c2/FLAG7b67d7e1a [2022-07-20 01:21:39,850 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:21:39,850 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--fddi--defxx.ko-entry_point.cil.out.i [2022-07-20 01:21:39,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5222050/8d65ed2286f543109a3a1caf6a6ff9c2/FLAG7b67d7e1a [2022-07-20 01:21:39,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5222050/8d65ed2286f543109a3a1caf6a6ff9c2 [2022-07-20 01:21:39,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:21:39,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:21:39,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:21:39,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:21:39,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:21:39,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:21:39" (1/1) ... [2022-07-20 01:21:39,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebf6353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:39, skipping insertion in model container [2022-07-20 01:21:39,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:21:39" (1/1) ... [2022-07-20 01:21:39,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:21:40,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:21:41,391 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--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-20 01:21:41,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:21:41,460 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:21:41,590 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: val = (unsigned int )val & 3U [7278] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 01:21:41,597 INFO L158 Benchmark]: Toolchain (without parser) took 1622.86ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 56.6MB in the beginning and 46.5MB in the end (delta: 10.0MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-07-20 01:21:41,598 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 67.9MB in the end (delta: 43.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 01:21:41,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1620.54ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 56.4MB in the beginning and 46.5MB in the end (delta: 9.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-07-20 01:21:41,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 67.9MB in the end (delta: 43.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1620.54ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 56.4MB in the beginning and 46.5MB in the end (delta: 9.8MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278]: 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--fddi--defxx.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 e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:21:43,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:21:43,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:21:43,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:21:43,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:21:43,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:21:43,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:21:43,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:21:43,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:21:43,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:21:43,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:21:43,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:21:43,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:21:43,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:21:43,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:21:43,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:21:43,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:21:43,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:21:43,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:21:43,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:21:43,126 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:21:43,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:21:43,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:21:43,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:21:43,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:21:43,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:21:43,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:21:43,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:21:43,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:21:43,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:21:43,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:21:43,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:21:43,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:21:43,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:21:43,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:21:43,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:21:43,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:21:43,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:21:43,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:21:43,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:21:43,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:21:43,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:21:43,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 01:21:43,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:21:43,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:21:43,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:21:43,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:21:43,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:21:43,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:21:43,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:21:43,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:21:43,180 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:21:43,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:21:43,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:21:43,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:21:43,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:21:43,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:21:43,181 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 01:21:43,189 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 01:21:43,189 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 01:21:43,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:21:43,189 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:21:43,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:21:43,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:21:43,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:21:43,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:21:43,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:21:43,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:21:43,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:21:43,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:21:43,191 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 01:21:43,191 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 01:21:43,191 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:21:43,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:21:43,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:21:43,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 01:21:43,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-20 01:21:43,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:21:43,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:21:43,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:21:43,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:21:43,465 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:21:43,467 INFO L432 ainManager$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--fddi--defxx.ko-entry_point.cil.out.i [2022-07-20 01:21:43,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9df57e05e/e0cec492d9d2461b8fec98d0ab723f86/FLAG542b8be02 [2022-07-20 01:21:44,182 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:21:44,183 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--fddi--defxx.ko-entry_point.cil.out.i [2022-07-20 01:21:44,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9df57e05e/e0cec492d9d2461b8fec98d0ab723f86/FLAG542b8be02 [2022-07-20 01:21:44,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9df57e05e/e0cec492d9d2461b8fec98d0ab723f86 [2022-07-20 01:21:44,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:21:44,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:21:44,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:21:44,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:21:44,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:21:44,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:21:44" (1/1) ... [2022-07-20 01:21:44,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c20e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:44, skipping insertion in model container [2022-07-20 01:21:44,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:21:44" (1/1) ... [2022-07-20 01:21:44,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:21:44,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:21:46,032 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--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-20 01:21:46,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:21:46,133 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 01:21:46,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:21:46,484 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--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-20 01:21:46,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:21:46,508 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:21:46,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-20 01:21:46,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:21:46,869 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:21:46,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46 WrapperNode [2022-07-20 01:21:46,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:21:46,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:21:46,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:21:46,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:21:46,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:46,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,073 INFO L137 Inliner]: procedures = 229, calls = 1656, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3017 [2022-07-20 01:21:47,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:21:47,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:21:47,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:21:47,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:21:47,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:21:47,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:21:47,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:21:47,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:21:47,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (1/1) ... [2022-07-20 01:21:47,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:21:47,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:21:47,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 01:21:47,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 01:21:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 01:21:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 01:21:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 01:21:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:21:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:21:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:21:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:21:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:21:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:21:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-20 01:21:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-20 01:21:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 01:21:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 01:21:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:21:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:21:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:21:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:21:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 01:21:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 01:21:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:21:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:21:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 01:21:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 01:21:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 01:21:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 01:21:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:21:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:21:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:21:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:21:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-20 01:21:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-20 01:21:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 01:21:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 01:21:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:21:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-07-20 01:21:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-07-20 01:21:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:21:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:21:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:21:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 01:21:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 01:21:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 01:21:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 01:21:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 01:21:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:21:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 01:21:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 01:21:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 01:21:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:21:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-07-20 01:21:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-07-20 01:21:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 01:21:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 01:21:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 01:21:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-20 01:21:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-20 01:21:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-20 01:21:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-20 01:21:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-07-20 01:21:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-07-20 01:21:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:21:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:21:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 01:21:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 01:21:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:21:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:21:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-07-20 01:21:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-07-20 01:21:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-07-20 01:21:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-07-20 01:21:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 01:21:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 01:21:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-07-20 01:21:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-07-20 01:21:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-07-20 01:21:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-07-20 01:21:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-07-20 01:21:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-07-20 01:21:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 01:21:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 01:21:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 01:21:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 01:21:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-07-20 01:21:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-07-20 01:21:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-20 01:21:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-20 01:21:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-07-20 01:21:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-07-20 01:21:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 01:21:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 01:21:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 01:21:47,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 01:21:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:21:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:21:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-07-20 01:21:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-07-20 01:21:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:21:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:21:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-20 01:21:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-20 01:21:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 01:21:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 01:21:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-20 01:21:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-20 01:21:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-20 01:21:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-20 01:21:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 01:21:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 01:21:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 01:21:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 01:21:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:21:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:21:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:21:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:21:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:21:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-20 01:21:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-20 01:21:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-07-20 01:21:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-07-20 01:21:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:21:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-07-20 01:21:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-07-20 01:21:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 01:21:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 01:21:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:21:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-07-20 01:21:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-07-20 01:21:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 01:21:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 01:21:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 01:21:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 01:21:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 01:21:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-07-20 01:21:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-07-20 01:21:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-07-20 01:21:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-07-20 01:21:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-07-20 01:21:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-07-20 01:21:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 01:21:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 01:21:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 01:21:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 01:21:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 01:21:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-07-20 01:21:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-07-20 01:21:47,414 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-20 01:21:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-20 01:21:47,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:21:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:21:47,978 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:21:47,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:21:50,599 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:22:54,481 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:22:54,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:22:54,496 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:22:54,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:22:54 BoogieIcfgContainer [2022-07-20 01:22:54,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:22:54,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:22:54,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:22:54,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:22:54,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:21:44" (1/3) ... [2022-07-20 01:22:54,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612cb65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:22:54, skipping insertion in model container [2022-07-20 01:22:54,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:21:46" (2/3) ... [2022-07-20 01:22:54,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612cb65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:22:54, skipping insertion in model container [2022-07-20 01:22:54,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:22:54" (3/3) ... [2022-07-20 01:22:54,505 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-20 01:22:54,515 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:22:54,516 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:22:54,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:22:54,591 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@56409859, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4bbc6c31 [2022-07-20 01:22:54,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:22:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2022-07-20 01:22:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-20 01:22:54,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:54,638 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:54,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:54,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1435178121, now seen corresponding path program 1 times [2022-07-20 01:22:54,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:54,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610130647] [2022-07-20 01:22:54,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:54,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:54,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:54,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:22:54,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 01:22:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:55,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:22:55,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:22:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:22:57,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:22:57,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:22:57,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610130647] [2022-07-20 01:22:57,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610130647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:57,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:57,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:22:57,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18532573] [2022-07-20 01:22:57,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:57,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:22:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:22:57,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:22:57,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:22:57,326 INFO L87 Difference]: Start difference. First operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:22:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:22:58,227 INFO L93 Difference]: Finished difference Result 3339 states and 4785 transitions. [2022-07-20 01:22:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:22:58,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-20 01:22:58,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:22:58,257 INFO L225 Difference]: With dead ends: 3339 [2022-07-20 01:22:58,257 INFO L226 Difference]: Without dead ends: 2187 [2022-07-20 01:22:58,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:22:58,270 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1543 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:22:58,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 7436 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:22:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-07-20 01:22:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2178. [2022-07-20 01:22:58,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 1528 states have (on average 1.3082460732984293) internal successors, (1999), 1554 states have internal predecessors, (1999), 532 states have call successors, (532), 118 states have call predecessors, (532), 117 states have return successors, (533), 531 states have call predecessors, (533), 531 states have call successors, (533) [2022-07-20 01:22:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3064 transitions. [2022-07-20 01:22:58,447 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3064 transitions. Word has length 158 [2022-07-20 01:22:58,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:58,448 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 3064 transitions. [2022-07-20 01:22:58,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:22:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3064 transitions. [2022-07-20 01:22:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-20 01:22:58,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:58,457 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:58,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:22:58,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:22:58,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1612545232, now seen corresponding path program 1 times [2022-07-20 01:22:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:58,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799489615] [2022-07-20 01:22:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:58,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:58,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:22:58,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 01:22:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:22:59,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:23:01,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:23:01,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:01,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799489615] [2022-07-20 01:23:01,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799489615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:01,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:01,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:23:01,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855471192] [2022-07-20 01:23:01,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:01,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:23:01,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:01,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:23:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:23:01,170 INFO L87 Difference]: Start difference. First operand 2178 states and 3064 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:23:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:02,029 INFO L93 Difference]: Finished difference Result 6535 states and 9203 transitions. [2022-07-20 01:23:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:23:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2022-07-20 01:23:02,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:02,053 INFO L225 Difference]: With dead ends: 6535 [2022-07-20 01:23:02,053 INFO L226 Difference]: Without dead ends: 4366 [2022-07-20 01:23:02,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:23:02,066 INFO L413 NwaCegarLoop]: 1935 mSDtfsCounter, 1512 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 7313 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:02,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 7313 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:23:02,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-07-20 01:23:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4351. [2022-07-20 01:23:02,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3054 states have (on average 1.306483300589391) internal successors, (3990), 3106 states have internal predecessors, (3990), 1060 states have call successors, (1060), 237 states have call predecessors, (1060), 236 states have return successors, (1067), 1059 states have call predecessors, (1067), 1059 states have call successors, (1067) [2022-07-20 01:23:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6117 transitions. [2022-07-20 01:23:02,214 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6117 transitions. Word has length 153 [2022-07-20 01:23:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:02,215 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6117 transitions. [2022-07-20 01:23:02,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:23:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6117 transitions. [2022-07-20 01:23:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-20 01:23:02,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:02,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:02,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:23:02,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:23:02,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:02,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:02,443 INFO L85 PathProgramCache]: Analyzing trace with hash 907320420, now seen corresponding path program 1 times [2022-07-20 01:23:02,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:23:02,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927862740] [2022-07-20 01:23:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:02,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:23:02,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:23:02,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:23:02,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 01:23:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:03,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:23:03,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:23:04,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:23:04,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:04,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927862740] [2022-07-20 01:23:04,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927862740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:04,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:04,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:23:04,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038314573] [2022-07-20 01:23:04,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:04,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:23:04,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:23:04,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:23:04,862 INFO L87 Difference]: Start difference. First operand 4351 states and 6117 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:23:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:05,889 INFO L93 Difference]: Finished difference Result 13068 states and 18388 transitions. [2022-07-20 01:23:05,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:23:05,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2022-07-20 01:23:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:05,935 INFO L225 Difference]: With dead ends: 13068 [2022-07-20 01:23:05,935 INFO L226 Difference]: Without dead ends: 8726 [2022-07-20 01:23:05,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:23:05,956 INFO L413 NwaCegarLoop]: 1928 mSDtfsCounter, 1513 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:05,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 7294 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:23:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-07-20 01:23:06,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8659. [2022-07-20 01:23:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8659 states, 6074 states have (on average 1.3062232466249588) internal successors, (7934), 6190 states have internal predecessors, (7934), 2112 states have call successors, (2112), 473 states have call predecessors, (2112), 472 states have return successors, (2135), 2099 states have call predecessors, (2135), 2111 states have call successors, (2135) [2022-07-20 01:23:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8659 states to 8659 states and 12181 transitions. [2022-07-20 01:23:06,242 INFO L78 Accepts]: Start accepts. Automaton has 8659 states and 12181 transitions. Word has length 152 [2022-07-20 01:23:06,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:06,244 INFO L495 AbstractCegarLoop]: Abstraction has 8659 states and 12181 transitions. [2022-07-20 01:23:06,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:23:06,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8659 states and 12181 transitions. [2022-07-20 01:23:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-20 01:23:06,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:06,255 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:06,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:23:06,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:23:06,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:06,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1809736159, now seen corresponding path program 1 times [2022-07-20 01:23:06,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:23:06,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818355448] [2022-07-20 01:23:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:06,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:23:06,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:23:06,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:23:06,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 01:23:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:07,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:23:07,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:23:08,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:23:08,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:08,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818355448] [2022-07-20 01:23:08,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818355448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:08,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:08,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:23:08,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371014741] [2022-07-20 01:23:08,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:08,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:23:08,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:08,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:23:08,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:23:08,967 INFO L87 Difference]: Start difference. First operand 8659 states and 12181 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:23:10,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:10,063 INFO L93 Difference]: Finished difference Result 25850 states and 36374 transitions. [2022-07-20 01:23:10,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:23:10,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2022-07-20 01:23:10,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:10,177 INFO L225 Difference]: With dead ends: 25850 [2022-07-20 01:23:10,177 INFO L226 Difference]: Without dead ends: 17200 [2022-07-20 01:23:10,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:23:10,226 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 1514 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:10,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 6911 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:23:10,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17200 states. [2022-07-20 01:23:10,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17200 to 17128. [2022-07-20 01:23:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17128 states, 12023 states have (on average 1.3049155784745903) internal successors, (15689), 12247 states have internal predecessors, (15689), 4162 states have call successors, (4162), 943 states have call predecessors, (4162), 942 states have return successors, (4225), 4141 states have call predecessors, (4225), 4161 states have call successors, (4225) [2022-07-20 01:23:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17128 states to 17128 states and 24076 transitions. [2022-07-20 01:23:10,798 INFO L78 Accepts]: Start accepts. Automaton has 17128 states and 24076 transitions. Word has length 154 [2022-07-20 01:23:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:10,799 INFO L495 AbstractCegarLoop]: Abstraction has 17128 states and 24076 transitions. [2022-07-20 01:23:10,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:23:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 17128 states and 24076 transitions. [2022-07-20 01:23:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-20 01:23:10,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:10,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-20 01:23:10,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:23:11,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:23:11,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 111546844, now seen corresponding path program 1 times [2022-07-20 01:23:11,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:23:11,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278514533] [2022-07-20 01:23:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:11,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:23:11,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:23:11,034 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:23:11,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 01:23:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:11,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:23:11,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:14,193 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-20 01:23:14,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:23:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-20 01:23:15,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:15,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278514533] [2022-07-20 01:23:15,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278514533] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 01:23:15,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:23:15,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-20 01:23:15,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041643494] [2022-07-20 01:23:15,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:15,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:23:15,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:23:15,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:23:15,861 INFO L87 Difference]: Start difference. First operand 17128 states and 24076 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 01:23:17,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:23:19,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:23:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:49,757 INFO L93 Difference]: Finished difference Result 46150 states and 65399 transitions. [2022-07-20 01:23:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 01:23:49,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2022-07-20 01:23:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:49,908 INFO L225 Difference]: With dead ends: 46150 [2022-07-20 01:23:49,908 INFO L226 Difference]: Without dead ends: 29031 [2022-07-20 01:23:49,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-20 01:23:49,971 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 2406 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 330 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 13667 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:49,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 13667 Invalid, 2398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [330 Valid, 2066 Invalid, 2 Unknown, 0 Unchecked, 30.3s Time] [2022-07-20 01:23:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29031 states. [2022-07-20 01:23:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29031 to 25498. [2022-07-20 01:23:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25498 states, 17897 states have (on average 1.3053584399620048) internal successors, (23362), 18225 states have internal predecessors, (23362), 6200 states have call successors, (6200), 1401 states have call predecessors, (6200), 1400 states have return successors, (6287), 6175 states have call predecessors, (6287), 6199 states have call successors, (6287) [2022-07-20 01:23:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25498 states to 25498 states and 35849 transitions. [2022-07-20 01:23:50,884 INFO L78 Accepts]: Start accepts. Automaton has 25498 states and 35849 transitions. Word has length 163 [2022-07-20 01:23:50,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:50,885 INFO L495 AbstractCegarLoop]: Abstraction has 25498 states and 35849 transitions. [2022-07-20 01:23:50,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 01:23:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 25498 states and 35849 transitions. [2022-07-20 01:23:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-20 01:23:50,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:50,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:50,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 01:23:51,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:23:51,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:51,123 INFO L85 PathProgramCache]: Analyzing trace with hash -25816105, now seen corresponding path program 1 times [2022-07-20 01:23:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:23:51,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129494258] [2022-07-20 01:23:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:51,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:23:51,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:23:51,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:23:51,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 01:23:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:23:52,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:23:54,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:23:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:23:56,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:56,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129494258] [2022-07-20 01:23:56,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129494258] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:23:56,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:23:56,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-20 01:23:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079052015] [2022-07-20 01:23:56,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:23:56,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 01:23:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 01:23:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-20 01:23:56,547 INFO L87 Difference]: Start difference. First operand 25498 states and 35849 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 01:23:58,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:00,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:02,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:25:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:25:08,959 INFO L93 Difference]: Finished difference Result 58644 states and 82941 transitions. [2022-07-20 01:25:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-20 01:25:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 169 [2022-07-20 01:25:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:25:09,228 INFO L225 Difference]: With dead ends: 58644 [2022-07-20 01:25:09,229 INFO L226 Difference]: Without dead ends: 33155 [2022-07-20 01:25:09,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-20 01:25:09,303 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 5706 mSDsluCounter, 20048 mSDsCounter, 0 mSdLazyCounter, 4944 mSolverCounterSat, 1352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5833 SdHoareTripleChecker+Valid, 23782 SdHoareTripleChecker+Invalid, 6299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 4944 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.6s IncrementalHoareTripleChecker+Time [2022-07-20 01:25:09,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5833 Valid, 23782 Invalid, 6299 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1352 Valid, 4944 Invalid, 3 Unknown, 0 Unchecked, 65.6s Time] [2022-07-20 01:25:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33155 states. [2022-07-20 01:25:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33155 to 29604. [2022-07-20 01:25:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29604 states, 20779 states have (on average 1.3051157418547572) internal successors, (27119), 21163 states have internal predecessors, (27119), 7194 states have call successors, (7194), 1631 states have call predecessors, (7194), 1630 states have return successors, (7293), 7161 states have call predecessors, (7293), 7193 states have call successors, (7293) [2022-07-20 01:25:10,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29604 states to 29604 states and 41606 transitions. [2022-07-20 01:25:10,292 INFO L78 Accepts]: Start accepts. Automaton has 29604 states and 41606 transitions. Word has length 169 [2022-07-20 01:25:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:25:10,294 INFO L495 AbstractCegarLoop]: Abstraction has 29604 states and 41606 transitions. [2022-07-20 01:25:10,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-20 01:25:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 29604 states and 41606 transitions. [2022-07-20 01:25:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-20 01:25:10,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:25:10,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:25:10,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 01:25:10,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:25:10,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:25:10,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:25:10,522 INFO L85 PathProgramCache]: Analyzing trace with hash -3469995, now seen corresponding path program 1 times [2022-07-20 01:25:10,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:25:10,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755611788] [2022-07-20 01:25:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:25:10,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:25:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:25:10,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:25:10,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 01:25:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:11,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:25:11,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:25:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:25:13,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:25:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 01:25:15,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:25:15,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755611788] [2022-07-20 01:25:15,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755611788] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:25:15,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:25:15,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-20 01:25:15,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158194094] [2022-07-20 01:25:15,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:25:15,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 01:25:15,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:25:15,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 01:25:15,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-20 01:25:15,272 INFO L87 Difference]: Start difference. First operand 29604 states and 41606 transitions. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 9 states have internal predecessors, (145), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:25:17,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:25:19,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:25:21,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:25:23,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []