./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 791161d1 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-?-791161d [2022-07-23 01:36:16,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:36:16,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:36:16,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:36:16,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:36:16,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:36:16,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:36:16,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:36:16,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:36:16,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:36:16,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:36:16,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:36:16,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:36:16,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:36:16,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:36:16,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:36:16,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:36:16,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:36:16,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:36:16,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:36:16,918 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:36:16,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:36:16,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:36:16,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:36:16,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:36:16,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:36:16,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:36:16,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:36:16,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:36:16,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:36:16,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:36:16,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:36:16,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:36:16,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:36:16,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:36:16,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:36:16,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:36:16,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:36:16,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:36:16,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:36:16,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:36:16,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:36:16,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:36:16,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:36:16,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:36:16,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:36:16,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:36:16,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:36:16,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:36:16,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:36:16,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:36:16,965 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:36:16,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:36:16,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:36:16,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:36:16,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:36:16,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:36:16,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:36:16,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:36:16,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:36:16,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:36:16,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:36:16,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:36:16,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:36:16,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:36:16,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:36:16,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:36:16,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:36:16,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:36:16,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:36:16,969 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:36:16,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:36:16,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:36:16,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-23 01:36:17,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:36:17,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:36:17,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:36:17,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:36:17,215 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:36:17,216 INFO L432 ainManager$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 [2022-07-23 01:36:17,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3552e7b72/992c7de0d058493192607e618c80daad/FLAG094ff883f [2022-07-23 01:36:17,945 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:36:17,946 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 [2022-07-23 01:36:17,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3552e7b72/992c7de0d058493192607e618c80daad/FLAG094ff883f [2022-07-23 01:36:18,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3552e7b72/992c7de0d058493192607e618c80daad [2022-07-23 01:36:18,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:36:18,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:36:18,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:36:18,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:36:18,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:36:18,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:36:18" (1/1) ... [2022-07-23 01:36:18,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de721cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:18, skipping insertion in model container [2022-07-23 01:36:18,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:36:18" (1/1) ... [2022-07-23 01:36:18,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:36:18,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:36:19,510 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] [2022-07-23 01:36:19,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:36:19,586 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:36:19,803 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) [2022-07-23 01:36:19,809 INFO L158 Benchmark]: Toolchain (without parser) took 1754.64ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 42.9MB in the beginning and 87.0MB in the end (delta: -44.1MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-07-23 01:36:19,810 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 39.9MB in the beginning and 39.9MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 01:36:19,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1752.93ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 42.7MB in the beginning and 87.0MB in the end (delta: -44.3MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-07-23 01:36:19,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 39.9MB in the beginning and 39.9MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1752.93ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 42.7MB in the beginning and 87.0MB in the end (delta: -44.3MB). Peak memory consumption was 54.2MB. 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-?-791161d [2022-07-23 01:36:21,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:36:21,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:36:21,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:36:21,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:36:21,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:36:21,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:36:21,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:36:21,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:36:21,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:36:21,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:36:21,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:36:21,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:36:21,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:36:21,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:36:21,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:36:21,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:36:21,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:36:21,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:36:21,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:36:21,655 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:36:21,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:36:21,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:36:21,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:36:21,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:36:21,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:36:21,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:36:21,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:36:21,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:36:21,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:36:21,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:36:21,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:36:21,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:36:21,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:36:21,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:36:21,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:36:21,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:36:21,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:36:21,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:36:21,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:36:21,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:36:21,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:36:21,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 01:36:21,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:36:21,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:36:21,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:36:21,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:36:21,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:36:21,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:36:21,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:36:21,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:36:21,718 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:36:21,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:36:21,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:36:21,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:36:21,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:36:21,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:36:21,719 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 01:36:21,720 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 01:36:21,720 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 01:36:21,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:36:21,720 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:36:21,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:36:21,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:36:21,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:36:21,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:36:21,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:36:21,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:36:21,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:36:21,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:36:21,722 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 01:36:21,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 01:36:21,722 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:36:21,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:36:21,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:36:21,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 01:36:21,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-23 01:36:22,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:36:22,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:36:22,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:36:22,066 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:36:22,067 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:36:22,069 INFO L432 ainManager$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 [2022-07-23 01:36:22,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a6d8616/07bc0d6b024a4e71b9fb7e86fe90ab78/FLAG759dc5f25 [2022-07-23 01:36:22,910 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:36:22,911 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 [2022-07-23 01:36:22,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a6d8616/07bc0d6b024a4e71b9fb7e86fe90ab78/FLAG759dc5f25 [2022-07-23 01:36:22,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8a6d8616/07bc0d6b024a4e71b9fb7e86fe90ab78 [2022-07-23 01:36:22,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:36:22,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:36:22,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:36:22,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:36:22,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:36:22,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:36:22" (1/1) ... [2022-07-23 01:36:22,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67474ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:22, skipping insertion in model container [2022-07-23 01:36:22,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:36:22" (1/1) ... [2022-07-23 01:36:23,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:36:23,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:36:24,790 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] [2022-07-23 01:36:24,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:36:24,896 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 01:36:24,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:36:25,262 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] [2022-07-23 01:36:25,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:36:25,287 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:36:25,573 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] [2022-07-23 01:36:25,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:36:25,670 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:36:25,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25 WrapperNode [2022-07-23 01:36:25,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:36:25,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:36:25,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:36:25,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:36:25,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:25,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:25,891 INFO L137 Inliner]: procedures = 229, calls = 1656, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3017 [2022-07-23 01:36:25,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:36:25,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:36:25,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:36:25,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:36:25,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:25,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:25,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:25,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:26,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:26,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:26,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:26,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:36:26,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:36:26,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:36:26,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:36:26,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (1/1) ... [2022-07-23 01:36:26,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:36:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:36:26,150 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) [2022-07-23 01:36:26,179 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 [2022-07-23 01:36:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 01:36:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 01:36:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 01:36:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:36:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:36:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:36:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:36:26,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:36:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:36:26,194 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-23 01:36:26,194 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-23 01:36:26,194 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 01:36:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 01:36:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:36:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:36:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:36:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:36:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-23 01:36:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-23 01:36:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:36:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:36:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 01:36:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 01:36:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 01:36:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 01:36:26,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:36:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:36:26,197 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:36:26,197 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:36:26,198 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-23 01:36:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-23 01:36:26,198 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 01:36:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 01:36:26,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:36:26,198 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-07-23 01:36:26,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-07-23 01:36:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:36:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:36:26,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:36:26,199 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:36:26,200 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:36:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 01:36:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 01:36:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 01:36:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:36:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 01:36:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-23 01:36:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-23 01:36:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:36:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-07-23 01:36:26,202 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-07-23 01:36:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 01:36:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 01:36:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 01:36:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-23 01:36:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-23 01:36:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-23 01:36:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-23 01:36:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-07-23 01:36:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-07-23 01:36:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:36:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:36:26,205 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 01:36:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 01:36:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:36:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:36:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-07-23 01:36:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-07-23 01:36:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-07-23 01:36:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-07-23 01:36:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 01:36:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 01:36:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-07-23 01:36:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-07-23 01:36:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-07-23 01:36:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-07-23 01:36:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-07-23 01:36:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-07-23 01:36:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 01:36:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 01:36:26,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-23 01:36:26,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-23 01:36:26,209 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-07-23 01:36:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-07-23 01:36:26,210 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-23 01:36:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-23 01:36:26,210 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-07-23 01:36:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-07-23 01:36:26,210 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:36:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:36:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 01:36:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 01:36:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:36:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:36:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-07-23 01:36:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-07-23 01:36:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:36:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:36:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-23 01:36:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-23 01:36:26,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 01:36:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 01:36:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-23 01:36:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-23 01:36:26,214 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-23 01:36:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-23 01:36:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 01:36:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 01:36:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 01:36:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 01:36:26,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:36:26,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:36:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:36:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:36:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:36:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-23 01:36:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-23 01:36:26,220 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-07-23 01:36:26,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-07-23 01:36:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:36:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-07-23 01:36:26,226 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-07-23 01:36:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 01:36:26,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 01:36:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:36:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-07-23 01:36:26,227 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-07-23 01:36:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 01:36:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 01:36:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:36:26,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:36:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 01:36:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-07-23 01:36:26,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-07-23 01:36:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-07-23 01:36:26,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-07-23 01:36:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-07-23 01:36:26,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-07-23 01:36:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 01:36:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 01:36:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 01:36:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 01:36:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 01:36:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-07-23 01:36:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-07-23 01:36:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-23 01:36:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-23 01:36:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:36:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:36:26,909 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:36:26,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:36:29,543 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:37:37,912 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:37:37,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:37:37,937 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:37:37,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:37:37 BoogieIcfgContainer [2022-07-23 01:37:37,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:37:37,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:37:37,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:37:37,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:37:37,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:36:22" (1/3) ... [2022-07-23 01:37:37,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd366a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:37:37, skipping insertion in model container [2022-07-23 01:37:37,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:36:25" (2/3) ... [2022-07-23 01:37:37,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd366a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:37:37, skipping insertion in model container [2022-07-23 01:37:37,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:37:37" (3/3) ... [2022-07-23 01:37:37,949 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-23 01:37:37,961 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:37:37,962 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:37:38,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:37:38,057 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@7e7e703, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29b1a46a [2022-07-23 01:37:38,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:37:38,067 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) [2022-07-23 01:37:38,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-23 01:37:38,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:37:38,099 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] [2022-07-23 01:37:38,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:37:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:37:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1435178121, now seen corresponding path program 1 times [2022-07-23 01:37:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:37:38,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604862498] [2022-07-23 01:37:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:37:38,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:37:38,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:37:38,124 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) [2022-07-23 01:37:38,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 01:37:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:37:39,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:37:39,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:37:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:37:41,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:37:41,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:37:41,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604862498] [2022-07-23 01:37:41,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604862498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:37:41,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:37:41,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:37:41,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765267077] [2022-07-23 01:37:41,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:37:41,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:37:41,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:37:41,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:37:41,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:37:41,631 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) [2022-07-23 01:37:42,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:37:42,861 INFO L93 Difference]: Finished difference Result 3339 states and 4785 transitions. [2022-07-23 01:37:42,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:37:42,864 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 [2022-07-23 01:37:42,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:37:42,899 INFO L225 Difference]: With dead ends: 3339 [2022-07-23 01:37:42,899 INFO L226 Difference]: Without dead ends: 2187 [2022-07-23 01:37:42,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:37:42,919 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1543 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:37:42,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 7436 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 01:37:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-07-23 01:37:43,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2178. [2022-07-23 01:37:43,108 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) [2022-07-23 01:37:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3064 transitions. [2022-07-23 01:37:43,128 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3064 transitions. Word has length 158 [2022-07-23 01:37:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:37:43,129 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 3064 transitions. [2022-07-23 01:37:43,129 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) [2022-07-23 01:37:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3064 transitions. [2022-07-23 01:37:43,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-23 01:37:43,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:37:43,144 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] [2022-07-23 01:37:43,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:37:43,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:37:43,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:37:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:37:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1612545232, now seen corresponding path program 1 times [2022-07-23 01:37:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:37:43,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462080969] [2022-07-23 01:37:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:37:43,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:37:43,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:37:43,366 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) [2022-07-23 01:37:43,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 01:37:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:37:44,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:37:44,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:37:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:37:46,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:37:46,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:37:46,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462080969] [2022-07-23 01:37:46,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462080969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:37:46,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:37:46,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:37:46,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285833199] [2022-07-23 01:37:46,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:37:46,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:37:46,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:37:46,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:37:46,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:37:46,273 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) [2022-07-23 01:37:47,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:37:47,396 INFO L93 Difference]: Finished difference Result 6535 states and 9203 transitions. [2022-07-23 01:37:47,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:37:47,397 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 [2022-07-23 01:37:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:37:47,426 INFO L225 Difference]: With dead ends: 6535 [2022-07-23 01:37:47,427 INFO L226 Difference]: Without dead ends: 4366 [2022-07-23 01:37:47,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:37:47,442 INFO L413 NwaCegarLoop]: 1935 mSDtfsCounter, 1512 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:37:47,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 7313 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 01:37:47,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-07-23 01:37:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4351. [2022-07-23 01:37:47,596 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) [2022-07-23 01:37:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6117 transitions. [2022-07-23 01:37:47,637 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6117 transitions. Word has length 153 [2022-07-23 01:37:47,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:37:47,637 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6117 transitions. [2022-07-23 01:37:47,638 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) [2022-07-23 01:37:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6117 transitions. [2022-07-23 01:37:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-23 01:37:47,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:37:47,649 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] [2022-07-23 01:37:47,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:37:47,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:37:47,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:37:47,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:37:47,866 INFO L85 PathProgramCache]: Analyzing trace with hash 907320420, now seen corresponding path program 1 times [2022-07-23 01:37:47,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:37:47,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454701094] [2022-07-23 01:37:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:37:47,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:37:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:37:47,871 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) [2022-07-23 01:37:47,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 01:37:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:37:48,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:37:48,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:37:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:37:50,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:37:50,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:37:50,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454701094] [2022-07-23 01:37:50,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454701094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:37:50,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:37:50,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:37:50,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870808024] [2022-07-23 01:37:50,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:37:50,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:37:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:37:50,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:37:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:37:50,727 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) [2022-07-23 01:37:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:37:51,920 INFO L93 Difference]: Finished difference Result 13068 states and 18388 transitions. [2022-07-23 01:37:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:37:51,923 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 [2022-07-23 01:37:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:37:51,983 INFO L225 Difference]: With dead ends: 13068 [2022-07-23 01:37:51,983 INFO L226 Difference]: Without dead ends: 8726 [2022-07-23 01:37:52,007 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 [2022-07-23 01:37:52,010 INFO L413 NwaCegarLoop]: 1928 mSDtfsCounter, 1513 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:37:52,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 7294 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 01:37:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-07-23 01:37:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8659. [2022-07-23 01:37:52,311 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) [2022-07-23 01:37:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8659 states to 8659 states and 12181 transitions. [2022-07-23 01:37:52,363 INFO L78 Accepts]: Start accepts. Automaton has 8659 states and 12181 transitions. Word has length 152 [2022-07-23 01:37:52,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:37:52,364 INFO L495 AbstractCegarLoop]: Abstraction has 8659 states and 12181 transitions. [2022-07-23 01:37:52,364 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) [2022-07-23 01:37:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 8659 states and 12181 transitions. [2022-07-23 01:37:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-23 01:37:52,378 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:37:52,378 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] [2022-07-23 01:37:52,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:37:52,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:37:52,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:37:52,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:37:52,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1809736159, now seen corresponding path program 1 times [2022-07-23 01:37:52,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:37:52,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867294434] [2022-07-23 01:37:52,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:37:52,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:37:52,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:37:52,602 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) [2022-07-23 01:37:52,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 01:37:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:37:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:37:53,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:37:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:37:55,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:37:55,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:37:55,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867294434] [2022-07-23 01:37:55,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867294434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:37:55,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:37:55,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:37:55,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630758660] [2022-07-23 01:37:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:37:55,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:37:55,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:37:55,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:37:55,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:37:55,475 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) [2022-07-23 01:37:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:37:56,878 INFO L93 Difference]: Finished difference Result 25850 states and 36374 transitions. [2022-07-23 01:37:56,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:37:56,879 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 [2022-07-23 01:37:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:37:57,006 INFO L225 Difference]: With dead ends: 25850 [2022-07-23 01:37:57,007 INFO L226 Difference]: Without dead ends: 17200 [2022-07-23 01:37:57,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:37:57,059 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 1514 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:37:57,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 6911 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 01:37:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17200 states. [2022-07-23 01:37:57,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17200 to 17128. [2022-07-23 01:37:57,724 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) [2022-07-23 01:37:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17128 states to 17128 states and 24076 transitions. [2022-07-23 01:37:57,811 INFO L78 Accepts]: Start accepts. Automaton has 17128 states and 24076 transitions. Word has length 154 [2022-07-23 01:37:57,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:37:57,811 INFO L495 AbstractCegarLoop]: Abstraction has 17128 states and 24076 transitions. [2022-07-23 01:37:57,812 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) [2022-07-23 01:37:57,812 INFO L276 IsEmpty]: Start isEmpty. Operand 17128 states and 24076 transitions. [2022-07-23 01:37:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-23 01:37:57,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:37:57,825 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] [2022-07-23 01:37:57,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:37:58,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:37:58,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:37:58,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:37:58,042 INFO L85 PathProgramCache]: Analyzing trace with hash 111546844, now seen corresponding path program 1 times [2022-07-23 01:37:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:37:58,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232235805] [2022-07-23 01:37:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:37:58,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:37:58,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:37:58,045 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) [2022-07-23 01:37:58,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 01:37:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:37:59,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:37:59,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:38:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-23 01:38:02,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:38:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-23 01:38:04,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:38:04,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232235805] [2022-07-23 01:38:04,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232235805] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 01:38:04,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:38:04,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-23 01:38:04,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814885679] [2022-07-23 01:38:04,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:38:04,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:38:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:38:04,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:38:04,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-23 01:38:04,150 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) [2022-07-23 01:38:06,227 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 [] [2022-07-23 01:38:08,247 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 [] [2022-07-23 01:38:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:38:42,428 INFO L93 Difference]: Finished difference Result 46150 states and 65399 transitions. [2022-07-23 01:38:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 01:38:42,429 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 [2022-07-23 01:38:42,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:38:42,669 INFO L225 Difference]: With dead ends: 46150 [2022-07-23 01:38:42,670 INFO L226 Difference]: Without dead ends: 29031 [2022-07-23 01:38:42,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-23 01:38:42,745 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 2406 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 330 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s 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, 34.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:38:42,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 13667 Invalid, 2398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [330 Valid, 2066 Invalid, 2 Unknown, 0 Unchecked, 34.3s Time] [2022-07-23 01:38:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29031 states. [2022-07-23 01:38:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29031 to 25498. [2022-07-23 01:38:43,745 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) [2022-07-23 01:38:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25498 states to 25498 states and 35849 transitions. [2022-07-23 01:38:43,875 INFO L78 Accepts]: Start accepts. Automaton has 25498 states and 35849 transitions. Word has length 163 [2022-07-23 01:38:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:38:43,875 INFO L495 AbstractCegarLoop]: Abstraction has 25498 states and 35849 transitions. [2022-07-23 01:38:43,876 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) [2022-07-23 01:38:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 25498 states and 35849 transitions. [2022-07-23 01:38:43,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-23 01:38:43,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:38:43,894 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] [2022-07-23 01:38:44,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-23 01:38:44,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:38:44,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:38:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:38:44,188 INFO L85 PathProgramCache]: Analyzing trace with hash -25816105, now seen corresponding path program 1 times [2022-07-23 01:38:44,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:38:44,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849544769] [2022-07-23 01:38:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:38:44,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:38:44,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:38:44,195 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) [2022-07-23 01:38:44,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 01:38:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:38:45,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:38:45,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:38:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:38:48,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:38:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:38:50,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:38:50,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849544769] [2022-07-23 01:38:50,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849544769] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:38:50,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:38:50,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-23 01:38:50,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274930487] [2022-07-23 01:38:50,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:38:50,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:38:50,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:38:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:38:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:38:50,228 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) [2022-07-23 01:38:52,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:38:54,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:38:56,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:40:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:40:12,015 INFO L93 Difference]: Finished difference Result 58644 states and 82941 transitions. [2022-07-23 01:40:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-23 01:40:12,016 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 [2022-07-23 01:40:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:40:12,181 INFO L225 Difference]: With dead ends: 58644 [2022-07-23 01:40:12,182 INFO L226 Difference]: Without dead ends: 33155 [2022-07-23 01:40:12,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 01:40:12,270 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 5706 mSDsluCounter, 20048 mSDsCounter, 0 mSdLazyCounter, 4944 mSolverCounterSat, 1352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.3s 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, 74.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:40:12,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5833 Valid, 23782 Invalid, 6299 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1352 Valid, 4944 Invalid, 3 Unknown, 0 Unchecked, 74.4s Time] [2022-07-23 01:40:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33155 states. [2022-07-23 01:40:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33155 to 29604. [2022-07-23 01:40:13,982 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) [2022-07-23 01:40:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29604 states to 29604 states and 41606 transitions. [2022-07-23 01:40:14,248 INFO L78 Accepts]: Start accepts. Automaton has 29604 states and 41606 transitions. Word has length 169 [2022-07-23 01:40:14,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:40:14,249 INFO L495 AbstractCegarLoop]: Abstraction has 29604 states and 41606 transitions. [2022-07-23 01:40:14,249 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) [2022-07-23 01:40:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 29604 states and 41606 transitions. [2022-07-23 01:40:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-23 01:40:14,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:40:14,335 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] [2022-07-23 01:40:14,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 01:40:14,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:40:14,555 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:40:14,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:40:14,556 INFO L85 PathProgramCache]: Analyzing trace with hash -3469995, now seen corresponding path program 1 times [2022-07-23 01:40:14,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:40:14,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773294076] [2022-07-23 01:40:14,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:40:14,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:40:14,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:40:14,559 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) [2022-07-23 01:40:14,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 01:40:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:40:15,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:40:15,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:40:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:40:18,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:40:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-23 01:40:20,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:40:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773294076] [2022-07-23 01:40:20,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773294076] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:40:20,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:40:20,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-23 01:40:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717097167] [2022-07-23 01:40:20,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:40:20,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:40:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:40:20,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:40:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:40:20,199 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)