./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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:16:21,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:16:21,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:16:21,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:16:21,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:16:21,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:16:21,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:16:21,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:16:21,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:16:21,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:16:21,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:16:21,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:16:21,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:16:21,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:16:21,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:16:21,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:16:21,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:16:21,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:16:21,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:16:21,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:16:21,937 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:16:21,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:16:21,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:16:21,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:16:21,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:16:21,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:16:21,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:16:21,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:16:21,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:16:21,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:16:21,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:16:21,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:16:21,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:16:21,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:16:21,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:16:21,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:16:21,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:16:21,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:16:21,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:16:21,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:16:21,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:16:21,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:16:21,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:16:22,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:16:22,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:16:22,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:16:22,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:16:22,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:16:22,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:16:22,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:16:22,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:16:22,017 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:16:22,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:16:22,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:16:22,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:16:22,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:16:22,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:16:22,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:16:22,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:16:22,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:16:22,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:16:22,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:16:22,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:16:22,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:16:22,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:16:22,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:16:22,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:16:22,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:16:22,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:16:22,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:16:22,021 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:16:22,021 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:16:22,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:16:22,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-12 14:16:22,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:16:22,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:16:22,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:16:22,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:16:22,317 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:16:22,319 INFO L432 ainManager$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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-12 14:16:22,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1aa080d/789a8cac9653426ab7d4fa5e348c377b/FLAG2e01c87f1 [2022-07-12 14:16:23,303 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:16:23,303 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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-12 14:16:23,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1aa080d/789a8cac9653426ab7d4fa5e348c377b/FLAG2e01c87f1 [2022-07-12 14:16:23,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1aa080d/789a8cac9653426ab7d4fa5e348c377b [2022-07-12 14:16:23,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:16:23,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:16:23,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:16:23,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:16:23,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:16:23,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:23" (1/1) ... [2022-07-12 14:16:23,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bca6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:23, skipping insertion in model container [2022-07-12 14:16:23,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:23" (1/1) ... [2022-07-12 14:16:23,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:16:23,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:16:27,113 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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-12 14:16:27,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:16:27,232 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:16:27,426 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: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817] 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:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 14:16:27,433 INFO L158 Benchmark]: Toolchain (without parser) took 3681.97ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 76.0MB in the beginning and 67.1MB in the end (delta: 8.9MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-07-12 14:16:27,434 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 34.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:16:27,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3679.80ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 75.8MB in the beginning and 67.1MB in the end (delta: 8.7MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-07-12 14:16:27,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 34.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3679.80ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 75.8MB in the beginning and 67.1MB in the end (delta: 8.7MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817]: 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--ethernet--qlogic--qla3xxx.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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:16:29,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:16:29,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:16:29,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:16:29,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:16:29,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:16:29,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:16:29,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:16:29,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:16:29,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:16:29,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:16:29,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:16:29,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:16:29,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:16:29,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:16:29,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:16:29,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:16:29,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:16:29,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:16:29,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:16:29,396 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:16:29,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:16:29,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:16:29,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:16:29,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:16:29,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:16:29,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:16:29,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:16:29,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:16:29,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:16:29,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:16:29,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:16:29,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:16:29,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:16:29,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:16:29,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:16:29,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:16:29,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:16:29,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:16:29,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:16:29,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:16:29,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:16:29,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:16:29,442 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:16:29,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:16:29,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:16:29,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:16:29,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:16:29,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:16:29,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:16:29,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:16:29,445 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:16:29,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:16:29,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:16:29,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:16:29,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:16:29,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:16:29,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:16:29,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:16:29,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:16:29,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:16:29,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:16:29,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:16:29,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:16:29,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:16:29,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:16:29,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:16:29,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:16:29,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:16:29,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:16:29,448 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:16:29,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:16:29,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:16:29,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:16:29,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:16:29,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:16:29,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-12 14:16:29,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:16:29,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:16:29,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:16:29,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:16:29,765 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:16:29,766 INFO L432 ainManager$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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-12 14:16:29,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9c2cbb9/e03d0512bef94f17890b75b49adec8fe/FLAGaa84e38ea [2022-07-12 14:16:30,627 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:16:30,628 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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-12 14:16:30,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9c2cbb9/e03d0512bef94f17890b75b49adec8fe/FLAGaa84e38ea [2022-07-12 14:16:31,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9c2cbb9/e03d0512bef94f17890b75b49adec8fe [2022-07-12 14:16:31,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:16:31,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:16:31,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:16:31,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:16:31,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:16:31,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:31" (1/1) ... [2022-07-12 14:16:31,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79748fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:31, skipping insertion in model container [2022-07-12 14:16:31,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:31" (1/1) ... [2022-07-12 14:16:31,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:16:31,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:16:33,941 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 14:16:33,964 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-12 14:16:34,210 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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-12 14:16:34,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:16:34,349 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:16:34,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:16:34,809 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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-12 14:16:34,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:16:34,865 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:16:35,253 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--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-12 14:16:35,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:16:35,460 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:16:35,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35 WrapperNode [2022-07-12 14:16:35,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:16:35,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:16:35,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:16:35,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:16:35,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:35,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:35,750 INFO L137 Inliner]: procedures = 424, calls = 2551, calls flagged for inlining = 208, calls inlined = 189, statements flattened = 5544 [2022-07-12 14:16:35,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:16:35,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:16:35,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:16:35,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:16:35,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:35,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:35,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:35,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:35,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:36,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:36,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:36,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:16:36,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:16:36,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:16:36,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:16:36,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (1/1) ... [2022-07-12 14:16:36,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:16:36,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:16:36,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 14:16:36,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 14:16:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-12 14:16:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-12 14:16:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 14:16:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 14:16:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:16:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:16:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 14:16:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 14:16:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2022-07-12 14:16:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2022-07-12 14:16:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-12 14:16:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-12 14:16:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:16:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:16:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:16:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:16:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-12 14:16:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-12 14:16:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 14:16:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 14:16:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-12 14:16:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-12 14:16:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-12 14:16:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-12 14:16:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-12 14:16:36,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-12 14:16:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 14:16:36,217 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 14:16:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 14:16:36,217 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 14:16:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-12 14:16:36,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-12 14:16:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-12 14:16:36,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-12 14:16:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 14:16:36,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 14:16:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 14:16:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 14:16:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-12 14:16:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-12 14:16:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2022-07-12 14:16:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2022-07-12 14:16:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-12 14:16:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-12 14:16:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-12 14:16:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-12 14:16:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 14:16:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 14:16:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 14:16:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 14:16:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 14:16:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 14:16:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-12 14:16:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-12 14:16:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 14:16:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 14:16:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 14:16:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 14:16:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-12 14:16:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-12 14:16:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-12 14:16:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-12 14:16:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-12 14:16:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 14:16:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 14:16:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:16:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:16:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-12 14:16:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 14:16:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-12 14:16:36,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-12 14:16:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:16:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-12 14:16:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-12 14:16:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2022-07-12 14:16:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-12 14:16:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 14:16:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-12 14:16:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-12 14:16:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-12 14:16:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 14:16:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-12 14:16:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 14:16:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 14:16:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 14:16:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-12 14:16:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:16:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:16:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-12 14:16:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 14:16:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-12 14:16:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:16:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 14:16:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 14:16:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-12 14:16:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-12 14:16:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-12 14:16:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-12 14:16:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-12 14:16:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-12 14:16:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-12 14:16:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-12 14:16:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:16:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:16:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-12 14:16:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-12 14:16:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 14:16:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 14:16:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-12 14:16:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-12 14:16:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:16:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:16:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-12 14:16:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-12 14:16:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:16:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:16:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 14:16:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 14:16:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 14:16:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 14:16:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-12 14:16:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-12 14:16:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 14:16:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 14:16:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:16:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 14:16:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 14:16:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:16:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 14:16:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 14:16:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-12 14:16:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-12 14:16:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:16:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:16:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:16:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:16:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:16:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-07-12 14:16:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-07-12 14:16:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 14:16:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 14:16:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 14:16:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 14:16:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 14:16:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 14:16:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-12 14:16:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-12 14:16:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 14:16:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 14:16:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-12 14:16:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-12 14:16:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2022-07-12 14:16:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2022-07-12 14:16:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 14:16:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 14:16:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-12 14:16:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-12 14:16:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-12 14:16:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-12 14:16:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 14:16:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 14:16:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 14:16:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 14:16:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-12 14:16:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-12 14:16:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-12 14:16:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-12 14:16:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:16:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:16:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-12 14:16:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-12 14:16:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-12 14:16:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-12 14:16:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:16:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:16:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:16:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:16:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:16:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:16:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-12 14:16:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-12 14:16:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-12 14:16:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-12 14:16:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:16:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:16:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-12 14:16:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-12 14:16:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 14:16:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 14:16:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-12 14:16:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-12 14:16:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-12 14:16:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-12 14:16:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-12 14:16:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-12 14:16:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-12 14:16:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-12 14:16:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 14:16:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 14:16:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 14:16:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 14:16:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 14:16:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 14:16:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-12 14:16:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-12 14:16:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-12 14:16:37,045 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:16:37,048 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:16:37,485 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:17:22,177 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:17:22,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:17:22,198 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:17:22,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:17:22 BoogieIcfgContainer [2022-07-12 14:17:22,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:17:22,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:17:22,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:17:22,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:17:22,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:16:31" (1/3) ... [2022-07-12 14:17:22,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1aca11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:17:22, skipping insertion in model container [2022-07-12 14:17:22,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:35" (2/3) ... [2022-07-12 14:17:22,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1aca11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:17:22, skipping insertion in model container [2022-07-12 14:17:22,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:17:22" (3/3) ... [2022-07-12 14:17:22,210 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-12 14:17:22,222 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:17:22,223 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:17:22,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:17:22,318 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@42367d29, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e928f2a [2022-07-12 14:17:22,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:17:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 2286 states, 1533 states have (on average 1.3052837573385518) internal successors, (2001), 1589 states have internal predecessors, (2001), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) [2022-07-12 14:17:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-12 14:17:22,374 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:22,375 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 14:17:22,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:22,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1836044323, now seen corresponding path program 1 times [2022-07-12 14:17:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:22,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776080546] [2022-07-12 14:17:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:22,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:22,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:22,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:22,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 14:17:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:24,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 14:17:24,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-12 14:17:24,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:24,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:24,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776080546] [2022-07-12 14:17:24,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776080546] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:24,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:24,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:17:24,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345705556] [2022-07-12 14:17:24,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:24,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 14:17:24,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:24,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 14:17:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:17:24,418 INFO L87 Difference]: Start difference. First operand has 2286 states, 1533 states have (on average 1.3052837573385518) internal successors, (2001), 1589 states have internal predecessors, (2001), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 14:17:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:24,693 INFO L93 Difference]: Finished difference Result 4567 states and 6529 transitions. [2022-07-12 14:17:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 14:17:24,696 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 211 [2022-07-12 14:17:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:24,732 INFO L225 Difference]: With dead ends: 4567 [2022-07-12 14:17:24,732 INFO L226 Difference]: Without dead ends: 2260 [2022-07-12 14:17:24,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:17:24,761 INFO L413 NwaCegarLoop]: 3239 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:24,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3239 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 14:17:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-07-12 14:17:24,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2022-07-12 14:17:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1519 states have (on average 1.2955892034233047) internal successors, (1968), 1563 states have internal predecessors, (1968), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-12 14:17:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3199 transitions. [2022-07-12 14:17:24,936 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3199 transitions. Word has length 211 [2022-07-12 14:17:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 3199 transitions. [2022-07-12 14:17:24,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 14:17:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3199 transitions. [2022-07-12 14:17:24,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-12 14:17:24,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:24,955 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 14:17:25,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 14:17:25,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:25,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:25,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash -191787369, now seen corresponding path program 1 times [2022-07-12 14:17:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:25,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976442244] [2022-07-12 14:17:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:25,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:25,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:25,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:25,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 14:17:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:27,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:17:27,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-12 14:17:27,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:27,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:27,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976442244] [2022-07-12 14:17:27,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976442244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:27,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:27,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:17:27,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604998034] [2022-07-12 14:17:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:27,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:17:27,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:17:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:17:27,277 INFO L87 Difference]: Start difference. First operand 2260 states and 3199 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 14:17:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:27,680 INFO L93 Difference]: Finished difference Result 4510 states and 6413 transitions. [2022-07-12 14:17:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 14:17:27,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 211 [2022-07-12 14:17:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:27,697 INFO L225 Difference]: With dead ends: 4510 [2022-07-12 14:17:27,697 INFO L226 Difference]: Without dead ends: 2261 [2022-07-12 14:17:27,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:17:27,711 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 6 mSDsluCounter, 12760 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15954 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:27,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15954 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:17:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-07-12 14:17:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2022-07-12 14:17:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1520 states have (on average 1.2953947368421053) internal successors, (1969), 1564 states have internal predecessors, (1969), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-12 14:17:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3200 transitions. [2022-07-12 14:17:27,794 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3200 transitions. Word has length 211 [2022-07-12 14:17:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:27,795 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3200 transitions. [2022-07-12 14:17:27,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 14:17:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3200 transitions. [2022-07-12 14:17:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-12 14:17:27,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:27,804 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 14:17:27,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 14:17:28,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:28,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:28,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1519484747, now seen corresponding path program 1 times [2022-07-12 14:17:28,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:28,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867289575] [2022-07-12 14:17:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:28,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:28,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:28,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:28,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 14:17:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:29,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:17:29,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-12 14:17:30,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:17:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-12 14:17:31,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:31,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867289575] [2022-07-12 14:17:31,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867289575] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:17:31,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:17:31,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 14:17:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045017434] [2022-07-12 14:17:31,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:17:31,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:17:31,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:31,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:17:31,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:17:31,010 INFO L87 Difference]: Start difference. First operand 2261 states and 3200 transitions. Second operand has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 14:17:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:31,593 INFO L93 Difference]: Finished difference Result 4512 states and 6415 transitions. [2022-07-12 14:17:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:17:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 213 [2022-07-12 14:17:31,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:31,611 INFO L225 Difference]: With dead ends: 4512 [2022-07-12 14:17:31,611 INFO L226 Difference]: Without dead ends: 2262 [2022-07-12 14:17:31,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-12 14:17:31,626 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 7 mSDsluCounter, 19138 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22332 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:31,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22332 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:17:31,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-07-12 14:17:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-07-12 14:17:31,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1521 states have (on average 1.2952005259697568) internal successors, (1970), 1565 states have internal predecessors, (1970), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-12 14:17:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3201 transitions. [2022-07-12 14:17:31,703 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3201 transitions. Word has length 213 [2022-07-12 14:17:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:31,704 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3201 transitions. [2022-07-12 14:17:31,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 14:17:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3201 transitions. [2022-07-12 14:17:31,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-12 14:17:31,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:31,713 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-07-12 14:17:31,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:31,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:31,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1053476375, now seen corresponding path program 2 times [2022-07-12 14:17:31,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914126874] [2022-07-12 14:17:31,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:17:31,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:31,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:31,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:31,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 14:17:33,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:17:33,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:17:33,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 14:17:33,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-12 14:17:33,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:33,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:33,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914126874] [2022-07-12 14:17:33,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914126874] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:33,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:33,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:17:33,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226221786] [2022-07-12 14:17:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:33,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:17:33,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:33,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:17:33,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:17:33,283 INFO L87 Difference]: Start difference. First operand 2262 states and 3201 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-12 14:17:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:33,861 INFO L93 Difference]: Finished difference Result 4755 states and 6787 transitions. [2022-07-12 14:17:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:17:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 215 [2022-07-12 14:17:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:33,880 INFO L225 Difference]: With dead ends: 4755 [2022-07-12 14:17:33,881 INFO L226 Difference]: Without dead ends: 2520 [2022-07-12 14:17:33,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:17:33,895 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 369 mSDsluCounter, 6602 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 10193 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:33,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 10193 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:17:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-07-12 14:17:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2264. [2022-07-12 14:17:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1523 states have (on average 1.2948128693368353) internal successors, (1972), 1567 states have internal predecessors, (1972), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-12 14:17:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3203 transitions. [2022-07-12 14:17:33,977 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3203 transitions. Word has length 215 [2022-07-12 14:17:33,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:33,982 INFO L495 AbstractCegarLoop]: Abstraction has 2264 states and 3203 transitions. [2022-07-12 14:17:33,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-12 14:17:33,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3203 transitions. [2022-07-12 14:17:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 14:17:33,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:33,992 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-07-12 14:17:34,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:34,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:34,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:34,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:34,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1356599653, now seen corresponding path program 1 times [2022-07-12 14:17:34,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:34,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159095527] [2022-07-12 14:17:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:34,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:34,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:34,223 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:34,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 14:17:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:36,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 14:17:36,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-12 14:17:36,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:17:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-07-12 14:17:37,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:37,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159095527] [2022-07-12 14:17:37,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159095527] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:17:37,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:17:37,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 14:17:37,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009705742] [2022-07-12 14:17:37,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:17:37,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 14:17:37,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:37,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 14:17:37,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 14:17:37,556 INFO L87 Difference]: Start difference. First operand 2264 states and 3203 transitions. Second operand has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 14:17:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:38,167 INFO L93 Difference]: Finished difference Result 4518 states and 6421 transitions. [2022-07-12 14:17:38,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 14:17:38,168 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 221 [2022-07-12 14:17:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:38,184 INFO L225 Difference]: With dead ends: 4518 [2022-07-12 14:17:38,185 INFO L226 Difference]: Without dead ends: 2265 [2022-07-12 14:17:38,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:17:38,198 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 12 mSDsluCounter, 19143 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 22337 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:38,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 22337 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:17:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-07-12 14:17:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2265. [2022-07-12 14:17:38,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1524 states have (on average 1.2946194225721785) internal successors, (1973), 1568 states have internal predecessors, (1973), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-12 14:17:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3204 transitions. [2022-07-12 14:17:38,273 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3204 transitions. Word has length 221 [2022-07-12 14:17:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:38,273 INFO L495 AbstractCegarLoop]: Abstraction has 2265 states and 3204 transitions. [2022-07-12 14:17:38,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 14:17:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3204 transitions. [2022-07-12 14:17:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-12 14:17:38,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:38,282 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 14:17:38,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:38,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:38,504 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:38,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:38,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1811297457, now seen corresponding path program 2 times [2022-07-12 14:17:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:38,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140904942] [2022-07-12 14:17:38,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:17:38,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:38,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:38,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:38,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 14:17:39,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:17:39,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:17:39,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-12 14:17:39,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-07-12 14:17:40,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:40,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:40,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140904942] [2022-07-12 14:17:40,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140904942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:40,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:40,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 14:17:40,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708985398] [2022-07-12 14:17:40,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:40,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:17:40,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:40,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:17:40,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:17:40,259 INFO L87 Difference]: Start difference. First operand 2265 states and 3204 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:40,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:40,821 INFO L93 Difference]: Finished difference Result 4511 states and 6414 transitions. [2022-07-12 14:17:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 14:17:40,822 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), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 223 [2022-07-12 14:17:40,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:40,837 INFO L225 Difference]: With dead ends: 4511 [2022-07-12 14:17:40,837 INFO L226 Difference]: Without dead ends: 2273 [2022-07-12 14:17:40,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 14:17:40,850 INFO L413 NwaCegarLoop]: 3201 mSDtfsCounter, 2 mSDsluCounter, 19183 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22384 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:40,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22384 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:17:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-07-12 14:17:40,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2022-07-12 14:17:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1530 states have (on average 1.2934640522875818) internal successors, (1979), 1574 states have internal predecessors, (1979), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-12 14:17:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3222 transitions. [2022-07-12 14:17:40,978 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3222 transitions. Word has length 223 [2022-07-12 14:17:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:40,979 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 3222 transitions. [2022-07-12 14:17:40,980 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), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3222 transitions. [2022-07-12 14:17:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-12 14:17:40,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:40,989 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:41,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:41,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:41,212 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:41,213 INFO L85 PathProgramCache]: Analyzing trace with hash -886033841, now seen corresponding path program 1 times [2022-07-12 14:17:41,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:41,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943727223] [2022-07-12 14:17:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:41,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:41,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:41,215 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:41,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 14:17:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:43,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 14:17:43,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 72 proven. 6 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-07-12 14:17:43,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:17:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-07-12 14:17:44,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:44,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943727223] [2022-07-12 14:17:44,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943727223] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:17:44,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:17:44,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 14:17:44,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652621147] [2022-07-12 14:17:44,753 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:17:44,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 14:17:44,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:44,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 14:17:44,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:17:44,755 INFO L87 Difference]: Start difference. First operand 2273 states and 3222 transitions. Second operand has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 14:17:45,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:45,528 INFO L93 Difference]: Finished difference Result 4536 states and 6459 transitions. [2022-07-12 14:17:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 14:17:45,529 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 235 [2022-07-12 14:17:45,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:45,546 INFO L225 Difference]: With dead ends: 4536 [2022-07-12 14:17:45,547 INFO L226 Difference]: Without dead ends: 2274 [2022-07-12 14:17:45,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-12 14:17:45,560 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 11 mSDsluCounter, 22326 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25520 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:45,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25520 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 14:17:45,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-07-12 14:17:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2022-07-12 14:17:45,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1531 states have (on average 1.2932723709993468) internal successors, (1980), 1575 states have internal predecessors, (1980), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-12 14:17:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3223 transitions. [2022-07-12 14:17:45,635 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3223 transitions. Word has length 235 [2022-07-12 14:17:45,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:45,637 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3223 transitions. [2022-07-12 14:17:45,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 14:17:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3223 transitions. [2022-07-12 14:17:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-12 14:17:45,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:45,646 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:45,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:45,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:45,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:45,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1388266419, now seen corresponding path program 2 times [2022-07-12 14:17:45,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:45,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661300271] [2022-07-12 14:17:45,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:17:45,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:45,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:45,871 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:45,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 14:17:46,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:17:46,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:17:46,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:17:46,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-12 14:17:46,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:46,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:46,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661300271] [2022-07-12 14:17:46,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661300271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:46,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:46,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:17:46,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164388199] [2022-07-12 14:17:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:46,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:17:46,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:46,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:17:46,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:46,985 INFO L87 Difference]: Start difference. First operand 2274 states and 3223 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:47,497 INFO L93 Difference]: Finished difference Result 4523 states and 6436 transitions. [2022-07-12 14:17:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:17:47,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 231 [2022-07-12 14:17:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:47,516 INFO L225 Difference]: With dead ends: 4523 [2022-07-12 14:17:47,516 INFO L226 Difference]: Without dead ends: 2276 [2022-07-12 14:17:47,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:47,527 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 1 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:47,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6391 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:17:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-07-12 14:17:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2275. [2022-07-12 14:17:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 1532 states have (on average 1.2930809399477807) internal successors, (1981), 1576 states have internal predecessors, (1981), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-12 14:17:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 3224 transitions. [2022-07-12 14:17:47,600 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 3224 transitions. Word has length 231 [2022-07-12 14:17:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:47,601 INFO L495 AbstractCegarLoop]: Abstraction has 2275 states and 3224 transitions. [2022-07-12 14:17:47,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 3224 transitions. [2022-07-12 14:17:47,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-12 14:17:47,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:47,610 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:47,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:47,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:47,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:47,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:47,832 INFO L85 PathProgramCache]: Analyzing trace with hash -326695337, now seen corresponding path program 1 times [2022-07-12 14:17:47,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:47,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324077819] [2022-07-12 14:17:47,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:47,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:47,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:47,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:47,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 14:17:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:49,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:17:49,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-12 14:17:49,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:49,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:49,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324077819] [2022-07-12 14:17:49,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324077819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:49,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:49,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:17:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982792994] [2022-07-12 14:17:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:49,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:17:49,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:49,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:17:49,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:49,975 INFO L87 Difference]: Start difference. First operand 2275 states and 3224 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:50,476 INFO L93 Difference]: Finished difference Result 6426 states and 9103 transitions. [2022-07-12 14:17:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:17:50,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 239 [2022-07-12 14:17:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:50,504 INFO L225 Difference]: With dead ends: 6426 [2022-07-12 14:17:50,505 INFO L226 Difference]: Without dead ends: 4178 [2022-07-12 14:17:50,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:50,516 INFO L413 NwaCegarLoop]: 3713 mSDtfsCounter, 2776 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 6735 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:50,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 6735 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:17:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-07-12 14:17:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 4162. [2022-07-12 14:17:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 2795 states have (on average 1.2915921288014311) internal successors, (3610), 2881 states have internal predecessors, (3610), 1131 states have call successors, (1131), 232 states have call predecessors, (1131), 235 states have return successors, (1154), 1105 states have call predecessors, (1154), 1130 states have call successors, (1154) [2022-07-12 14:17:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5895 transitions. [2022-07-12 14:17:50,654 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5895 transitions. Word has length 239 [2022-07-12 14:17:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:50,654 INFO L495 AbstractCegarLoop]: Abstraction has 4162 states and 5895 transitions. [2022-07-12 14:17:50,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:17:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5895 transitions. [2022-07-12 14:17:50,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-07-12 14:17:50,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:50,667 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:50,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:50,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:50,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:50,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:50,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1204888151, now seen corresponding path program 1 times [2022-07-12 14:17:50,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:50,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881609604] [2022-07-12 14:17:50,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:50,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:50,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:50,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:50,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 14:17:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:53,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:17:53,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-12 14:17:53,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:53,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:53,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881609604] [2022-07-12 14:17:53,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881609604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:53,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:53,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:17:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276342315] [2022-07-12 14:17:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:53,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:17:53,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:17:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:53,317 INFO L87 Difference]: Start difference. First operand 4162 states and 5895 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:17:53,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:53,770 INFO L93 Difference]: Finished difference Result 12386 states and 17596 transitions. [2022-07-12 14:17:53,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:17:53,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 360 [2022-07-12 14:17:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:53,856 INFO L225 Difference]: With dead ends: 12386 [2022-07-12 14:17:53,856 INFO L226 Difference]: Without dead ends: 8251 [2022-07-12 14:17:53,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:53,881 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 3147 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:53,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 6979 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:17:53,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8251 states. [2022-07-12 14:17:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8251 to 8248. [2022-07-12 14:17:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 5536 states have (on average 1.2922687861271676) internal successors, (7154), 5713 states have internal predecessors, (7154), 2247 states have call successors, (2247), 462 states have call predecessors, (2247), 464 states have return successors, (2302), 2186 states have call predecessors, (2302), 2246 states have call successors, (2302) [2022-07-12 14:17:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11703 transitions. [2022-07-12 14:17:54,207 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11703 transitions. Word has length 360 [2022-07-12 14:17:54,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:54,208 INFO L495 AbstractCegarLoop]: Abstraction has 8248 states and 11703 transitions. [2022-07-12 14:17:54,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:17:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11703 transitions. [2022-07-12 14:17:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-12 14:17:54,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:54,226 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:54,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 14:17:54,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:54,448 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:54,448 INFO L85 PathProgramCache]: Analyzing trace with hash 71382096, now seen corresponding path program 1 times [2022-07-12 14:17:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:54,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498562765] [2022-07-12 14:17:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:54,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:54,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:54,451 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:54,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 14:17:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:17:56,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:17:56,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:17:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-12 14:17:57,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:17:57,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:17:57,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498562765] [2022-07-12 14:17:57,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498562765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:17:57,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:17:57,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:17:57,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175331507] [2022-07-12 14:17:57,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:17:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:17:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:17:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:17:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:57,025 INFO L87 Difference]: Start difference. First operand 8248 states and 11703 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:17:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:17:57,542 INFO L93 Difference]: Finished difference Result 20588 states and 29255 transitions. [2022-07-12 14:17:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:17:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 361 [2022-07-12 14:17:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:17:57,618 INFO L225 Difference]: With dead ends: 20588 [2022-07-12 14:17:57,618 INFO L226 Difference]: Without dead ends: 12367 [2022-07-12 14:17:57,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:17:57,659 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 3173 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:17:57,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 6960 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:17:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-07-12 14:17:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 12364. [2022-07-12 14:17:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12364 states, 8303 states have (on average 1.291340479344815) internal successors, (10722), 8566 states have internal predecessors, (10722), 3362 states have call successors, (3362), 692 states have call predecessors, (3362), 698 states have return successors, (3459), 3276 states have call predecessors, (3459), 3361 states have call successors, (3459) [2022-07-12 14:17:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 17543 transitions. [2022-07-12 14:17:58,159 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 17543 transitions. Word has length 361 [2022-07-12 14:17:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:17:58,159 INFO L495 AbstractCegarLoop]: Abstraction has 12364 states and 17543 transitions. [2022-07-12 14:17:58,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:17:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 17543 transitions. [2022-07-12 14:17:58,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-12 14:17:58,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:17:58,181 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:17:58,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-12 14:17:58,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:17:58,396 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:17:58,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:17:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1100248334, now seen corresponding path program 1 times [2022-07-12 14:17:58,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:17:58,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110332407] [2022-07-12 14:17:58,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:17:58,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:17:58,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:17:58,399 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:17:58,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 14:18:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:00,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:18:00,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-12 14:18:00,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:00,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:00,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110332407] [2022-07-12 14:18:00,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110332407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:00,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:00,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:18:00,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705600369] [2022-07-12 14:18:00,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:00,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:18:00,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:00,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:18:00,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:00,909 INFO L87 Difference]: Start difference. First operand 12364 states and 17543 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:18:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:01,653 INFO L93 Difference]: Finished difference Result 28816 states and 40937 transitions. [2022-07-12 14:18:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:18:01,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 356 [2022-07-12 14:18:01,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:01,746 INFO L225 Difference]: With dead ends: 28816 [2022-07-12 14:18:01,747 INFO L226 Difference]: Without dead ends: 16479 [2022-07-12 14:18:01,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:01,803 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 3174 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:01,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3174 Valid, 6960 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:18:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16479 states. [2022-07-12 14:18:02,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16479 to 16476. [2022-07-12 14:18:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16476 states, 11069 states have (on average 1.290721835757521) internal successors, (14287), 11418 states have internal predecessors, (14287), 4474 states have call successors, (4474), 922 states have call predecessors, (4474), 932 states have return successors, (4613), 4363 states have call predecessors, (4613), 4473 states have call successors, (4613) [2022-07-12 14:18:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16476 states to 16476 states and 23374 transitions. [2022-07-12 14:18:02,576 INFO L78 Accepts]: Start accepts. Automaton has 16476 states and 23374 transitions. Word has length 356 [2022-07-12 14:18:02,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:02,578 INFO L495 AbstractCegarLoop]: Abstraction has 16476 states and 23374 transitions. [2022-07-12 14:18:02,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:18:02,578 INFO L276 IsEmpty]: Start isEmpty. Operand 16476 states and 23374 transitions. [2022-07-12 14:18:02,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-07-12 14:18:02,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:02,609 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:18:02,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:02,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:18:02,829 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:02,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash -911585011, now seen corresponding path program 1 times [2022-07-12 14:18:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:02,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731721608] [2022-07-12 14:18:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:02,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:02,834 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:18:02,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 14:18:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:05,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:18:05,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-12 14:18:05,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:05,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:05,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731721608] [2022-07-12 14:18:05,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731721608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:05,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:05,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:18:05,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563671105] [2022-07-12 14:18:05,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:05,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:18:05,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:18:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:05,513 INFO L87 Difference]: Start difference. First operand 16476 states and 23374 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-12 14:18:06,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:06,203 INFO L93 Difference]: Finished difference Result 32909 states and 46689 transitions. [2022-07-12 14:18:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:18:06,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 428 [2022-07-12 14:18:06,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:06,315 INFO L225 Difference]: With dead ends: 32909 [2022-07-12 14:18:06,316 INFO L226 Difference]: Without dead ends: 16460 [2022-07-12 14:18:06,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:06,401 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 3183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:06,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 3194 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:06,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16460 states. [2022-07-12 14:18:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16460 to 16460. [2022-07-12 14:18:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16460 states, 11061 states have (on average 1.2902088418768647) internal successors, (14271), 11410 states have internal predecessors, (14271), 4466 states have call successors, (4466), 922 states have call predecessors, (4466), 932 states have return successors, (4605), 4355 states have call predecessors, (4605), 4465 states have call successors, (4605) [2022-07-12 14:18:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16460 states to 16460 states and 23342 transitions. [2022-07-12 14:18:07,104 INFO L78 Accepts]: Start accepts. Automaton has 16460 states and 23342 transitions. Word has length 428 [2022-07-12 14:18:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:07,105 INFO L495 AbstractCegarLoop]: Abstraction has 16460 states and 23342 transitions. [2022-07-12 14:18:07,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-12 14:18:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 16460 states and 23342 transitions. [2022-07-12 14:18:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-12 14:18:07,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:07,128 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:18:07,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:07,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:18:07,350 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2132796789, now seen corresponding path program 1 times [2022-07-12 14:18:07,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:07,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241182650] [2022-07-12 14:18:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:07,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:07,355 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:18:07,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 14:18:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:10,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:18:10,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-12 14:18:10,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:10,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:10,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241182650] [2022-07-12 14:18:10,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241182650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:10,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:10,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:18:10,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641135120] [2022-07-12 14:18:10,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:10,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:18:10,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:10,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:18:10,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:10,348 INFO L87 Difference]: Start difference. First operand 16460 states and 23342 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:18:11,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:11,117 INFO L93 Difference]: Finished difference Result 36990 states and 52519 transitions. [2022-07-12 14:18:11,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:18:11,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 357 [2022-07-12 14:18:11,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:11,345 INFO L225 Difference]: With dead ends: 36990 [2022-07-12 14:18:11,346 INFO L226 Difference]: Without dead ends: 20557 [2022-07-12 14:18:11,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:11,415 INFO L413 NwaCegarLoop]: 3792 mSDtfsCounter, 3171 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:11,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 6951 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:18:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20557 states. [2022-07-12 14:18:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20557 to 20554. [2022-07-12 14:18:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20554 states, 13818 states have (on average 1.2898393399913157) internal successors, (17823), 14253 states have internal predecessors, (17823), 5571 states have call successors, (5571), 1150 states have call predecessors, (5571), 1164 states have return successors, (5752), 5435 states have call predecessors, (5752), 5570 states have call successors, (5752) [2022-07-12 14:18:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20554 states to 20554 states and 29146 transitions. [2022-07-12 14:18:12,301 INFO L78 Accepts]: Start accepts. Automaton has 20554 states and 29146 transitions. Word has length 357 [2022-07-12 14:18:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:12,302 INFO L495 AbstractCegarLoop]: Abstraction has 20554 states and 29146 transitions. [2022-07-12 14:18:12,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-12 14:18:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 20554 states and 29146 transitions. [2022-07-12 14:18:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-12 14:18:12,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:12,336 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:18:12,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:12,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:18:12,552 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:12,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1519245808, now seen corresponding path program 1 times [2022-07-12 14:18:12,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:12,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152004873] [2022-07-12 14:18:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:12,557 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:18:12,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 14:18:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:15,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 14:18:15,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:16,789 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-12 14:18:16,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:16,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:16,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152004873] [2022-07-12 14:18:16,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152004873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:16,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:16,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 14:18:16,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840468858] [2022-07-12 14:18:16,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:16,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:18:16,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:16,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:18:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:18:16,792 INFO L87 Difference]: Start difference. First operand 20554 states and 29146 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-12 14:18:51,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:18:53,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:19:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:19:06,814 INFO L93 Difference]: Finished difference Result 73875 states and 105893 transitions. [2022-07-12 14:19:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 14:19:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) Word has length 386 [2022-07-12 14:19:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:19:07,124 INFO L225 Difference]: With dead ends: 73875 [2022-07-12 14:19:07,124 INFO L226 Difference]: Without dead ends: 53348 [2022-07-12 14:19:07,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:19:07,445 INFO L413 NwaCegarLoop]: 4677 mSDtfsCounter, 5516 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 8403 mSolverCounterSat, 3635 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6107 SdHoareTripleChecker+Valid, 8661 SdHoareTripleChecker+Invalid, 12040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3635 IncrementalHoareTripleChecker+Valid, 8403 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:19:07,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6107 Valid, 8661 Invalid, 12040 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3635 Valid, 8403 Invalid, 2 Unknown, 0 Unchecked, 48.0s Time] [2022-07-12 14:19:07,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53348 states. [2022-07-12 14:19:09,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53348 to 52992. [2022-07-12 14:19:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52992 states, 34906 states have (on average 1.2775454076663038) internal successors, (44594), 36138 states have internal predecessors, (44594), 15024 states have call successors, (15024), 2868 states have call predecessors, (15024), 3061 states have return successors, (16276), 14855 states have call predecessors, (16276), 15023 states have call successors, (16276) [2022-07-12 14:19:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52992 states to 52992 states and 75894 transitions. [2022-07-12 14:19:10,128 INFO L78 Accepts]: Start accepts. Automaton has 52992 states and 75894 transitions. Word has length 386 [2022-07-12 14:19:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:19:10,130 INFO L495 AbstractCegarLoop]: Abstraction has 52992 states and 75894 transitions. [2022-07-12 14:19:10,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-12 14:19:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 52992 states and 75894 transitions. [2022-07-12 14:19:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-07-12 14:19:10,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:19:10,211 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:19:10,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 14:19:10,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:19:10,428 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:19:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:19:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash -943706040, now seen corresponding path program 1 times [2022-07-12 14:19:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:19:10,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984488227] [2022-07-12 14:19:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:19:10,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:19:10,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:19:10,432 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:19:10,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 14:19:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:19:13,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 3130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:19:13,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:19:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-12 14:19:13,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:19:13,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:19:13,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984488227] [2022-07-12 14:19:13,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984488227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:19:13,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:19:13,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:19:13,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922235198] [2022-07-12 14:19:13,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:19:13,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:19:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:19:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:19:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:19:13,636 INFO L87 Difference]: Start difference. First operand 52992 states and 75894 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-07-12 14:19:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:19:15,214 INFO L93 Difference]: Finished difference Result 105917 states and 151663 transitions. [2022-07-12 14:19:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:19:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 473 [2022-07-12 14:19:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:19:15,589 INFO L225 Difference]: With dead ends: 105917 [2022-07-12 14:19:15,589 INFO L226 Difference]: Without dead ends: 52952 [2022-07-12 14:19:15,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:19:15,772 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 3138 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:19:15,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 3190 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:19:15,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52952 states. [2022-07-12 14:19:17,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52952 to 52952. [2022-07-12 14:19:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52952 states, 34886 states have (on average 1.2771312274264748) internal successors, (44554), 36118 states have internal predecessors, (44554), 15004 states have call successors, (15004), 2868 states have call predecessors, (15004), 3061 states have return successors, (16226), 14835 states have call predecessors, (16226), 15003 states have call successors, (16226) [2022-07-12 14:19:17,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52952 states to 52952 states and 75784 transitions. [2022-07-12 14:19:17,810 INFO L78 Accepts]: Start accepts. Automaton has 52952 states and 75784 transitions. Word has length 473 [2022-07-12 14:19:17,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:19:17,811 INFO L495 AbstractCegarLoop]: Abstraction has 52952 states and 75784 transitions. [2022-07-12 14:19:17,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-07-12 14:19:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 52952 states and 75784 transitions. [2022-07-12 14:19:17,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-07-12 14:19:17,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:19:17,873 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:19:17,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 14:19:18,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:19:18,098 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:19:18,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:19:18,099 INFO L85 PathProgramCache]: Analyzing trace with hash -642016824, now seen corresponding path program 1 times [2022-07-12 14:19:18,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:19:18,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566151053] [2022-07-12 14:19:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:19:18,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:19:18,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:19:18,103 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:19:18,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 14:19:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:19:20,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 3135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:19:20,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:19:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-12 14:19:21,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:19:21,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:19:21,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566151053] [2022-07-12 14:19:21,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566151053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:19:21,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:19:21,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:19:21,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477367081] [2022-07-12 14:19:21,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:19:21,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:19:21,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:19:21,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:19:21,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:19:21,446 INFO L87 Difference]: Start difference. First operand 52952 states and 75784 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-12 14:19:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:19:23,205 INFO L93 Difference]: Finished difference Result 105837 states and 151443 transitions. [2022-07-12 14:19:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:19:23,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 474 [2022-07-12 14:19:23,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:19:23,489 INFO L225 Difference]: With dead ends: 105837 [2022-07-12 14:19:23,489 INFO L226 Difference]: Without dead ends: 52912 [2022-07-12 14:19:23,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:19:23,801 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 3135 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3135 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:19:23,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3135 Valid, 3186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:19:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52912 states. [2022-07-12 14:19:25,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52912 to 52912. [2022-07-12 14:19:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52912 states, 34866 states have (on average 1.2767165720185853) internal successors, (44514), 36098 states have internal predecessors, (44514), 14984 states have call successors, (14984), 2868 states have call predecessors, (14984), 3061 states have return successors, (16176), 14815 states have call predecessors, (16176), 14983 states have call successors, (16176) [2022-07-12 14:19:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52912 states to 52912 states and 75674 transitions. [2022-07-12 14:19:25,868 INFO L78 Accepts]: Start accepts. Automaton has 52912 states and 75674 transitions. Word has length 474 [2022-07-12 14:19:25,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:19:25,869 INFO L495 AbstractCegarLoop]: Abstraction has 52912 states and 75674 transitions. [2022-07-12 14:19:25,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-12 14:19:25,869 INFO L276 IsEmpty]: Start isEmpty. Operand 52912 states and 75674 transitions. [2022-07-12 14:19:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-07-12 14:19:25,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:19:25,927 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:19:25,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 14:19:26,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:19:26,128 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:19:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:19:26,128 INFO L85 PathProgramCache]: Analyzing trace with hash -25017009, now seen corresponding path program 1 times [2022-07-12 14:19:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:19:26,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965564877] [2022-07-12 14:19:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:19:26,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:19:26,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:19:26,132 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:19:26,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 14:19:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:19:28,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 2916 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 14:19:28,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:19:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-12 14:19:30,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:19:30,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:19:30,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965564877] [2022-07-12 14:19:30,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965564877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:19:30,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:19:30,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 14:19:30,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007820753] [2022-07-12 14:19:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:19:30,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:19:30,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:19:30,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:19:30,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:19:30,582 INFO L87 Difference]: Start difference. First operand 52912 states and 75674 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-12 14:20:05,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:20:08,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []