./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:25:30,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:25:30,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:25:30,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:25:30,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:25:30,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:25:30,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:25:30,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:25:30,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:25:30,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:25:30,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:25:30,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:25:30,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:25:30,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:25:30,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:25:30,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:25:30,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:25:30,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:25:30,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:25:30,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:25:30,496 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:25:30,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:25:30,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:25:30,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:25:30,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:25:30,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:25:30,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:25:30,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:25:30,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:25:30,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:25:30,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:25:30,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:25:30,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:25:30,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:25:30,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:25:30,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:25:30,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:25:30,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:25:30,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:25:30,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:25:30,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:25:30,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:25:30,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:25:30,538 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:25:30,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:25:30,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:25:30,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:25:30,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:25:30,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:25:30,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:25:30,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:25:30,541 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:25:30,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:25:30,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:25:30,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:25:30,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:25:30,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:25:30,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:25:30,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:25:30,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:25:30,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:25:30,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:25:30,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:25:30,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:25:30,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:25:30,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:25:30,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:25:30,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:25:30,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:25:30,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:25:30,546 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:25:30,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:25:30,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:25:30,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2022-07-21 11:25:30,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:25:30,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:25:30,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:25:30,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:25:30,932 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:25:30,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 11:25:30,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f968743/48add5bd84e94a55a539961f48e12016/FLAG4924b93ae [2022-07-21 11:25:31,729 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:25:31,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 11:25:31,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f968743/48add5bd84e94a55a539961f48e12016/FLAG4924b93ae [2022-07-21 11:25:31,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f968743/48add5bd84e94a55a539961f48e12016 [2022-07-21 11:25:31,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:25:31,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:25:31,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:25:31,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:25:31,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:25:31,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:31" (1/1) ... [2022-07-21 11:25:31,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409b3735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:31, skipping insertion in model container [2022-07-21 11:25:31,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:31" (1/1) ... [2022-07-21 11:25:31,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:25:31,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:25:32,531 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-07-21 11:25:32,532 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-07-21 11:25:32,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-07-21 11:25:33,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:25:33,560 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:25:33,663 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-07-21 11:25:33,664 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-07-21 11:25:33,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-07-21 11:25:33,738 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7145] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 11:25:33,745 INFO L158 Benchmark]: Toolchain (without parser) took 1916.21ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 35.4MB in the beginning and 70.8MB in the end (delta: -35.3MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-07-21 11:25:33,746 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:25:33,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1913.72ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 35.3MB in the beginning and 70.8MB in the end (delta: -35.5MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-07-21 11:25:33,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1913.72ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 35.3MB in the beginning and 70.8MB in the end (delta: -35.5MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7145] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7145]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:25:35,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:25:35,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:25:35,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:25:35,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:25:35,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:25:35,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:25:35,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:25:35,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:25:35,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:25:35,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:25:35,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:25:35,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:25:35,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:25:35,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:25:35,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:25:35,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:25:35,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:25:35,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:25:35,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:25:35,550 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:25:35,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:25:35,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:25:35,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:25:35,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:25:35,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:25:35,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:25:35,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:25:35,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:25:35,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:25:35,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:25:35,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:25:35,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:25:35,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:25:35,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:25:35,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:25:35,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:25:35,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:25:35,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:25:35,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:25:35,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:25:35,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:25:35,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:25:35,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:25:35,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:25:35,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:25:35,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:25:35,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:25:35,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:25:35,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:25:35,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:25:35,616 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:25:35,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:25:35,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:25:35,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:25:35,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:25:35,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:25:35,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:25:35,619 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:25:35,619 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:25:35,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:25:35,620 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:25:35,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:25:35,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:25:35,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:25:35,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:25:35,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:25:35,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:25:35,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:25:35,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:25:35,622 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:25:35,622 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:25:35,622 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:25:35,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:25:35,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:25:35,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:25:35,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2022-07-21 11:25:35,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:25:35,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:25:35,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:25:35,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:25:35,988 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:25:35,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 11:25:36,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc11ec1a5/e75d4905d5b8468eac3be298dbf568fd/FLAG254006710 [2022-07-21 11:25:36,804 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:25:36,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 11:25:36,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc11ec1a5/e75d4905d5b8468eac3be298dbf568fd/FLAG254006710 [2022-07-21 11:25:36,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc11ec1a5/e75d4905d5b8468eac3be298dbf568fd [2022-07-21 11:25:36,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:25:36,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:25:36,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:25:36,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:25:36,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:25:36,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:36" (1/1) ... [2022-07-21 11:25:36,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ff3f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:36, skipping insertion in model container [2022-07-21 11:25:36,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:36" (1/1) ... [2022-07-21 11:25:36,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:25:37,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:25:37,657 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-07-21 11:25:37,658 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-07-21 11:25:37,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-07-21 11:25:38,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:25:38,629 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:25:38,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:25:38,792 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-07-21 11:25:38,793 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-07-21 11:25:38,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-07-21 11:25:39,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:25:39,038 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:25:39,186 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-07-21 11:25:39,186 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-07-21 11:25:39,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-07-21 11:25:39,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:25:39,433 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:25:39,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39 WrapperNode [2022-07-21 11:25:39,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:25:39,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:25:39,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:25:39,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:25:39,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,659 INFO L137 Inliner]: procedures = 233, calls = 1605, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 3008 [2022-07-21 11:25:39,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:25:39,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:25:39,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:25:39,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:25:39,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:25:39,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:25:39,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:25:39,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:25:39,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2022-07-21 11:25:39,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:25:39,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:25:39,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:25:39,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:25:39,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:25:39,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:25:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:25:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:25:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:25:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:25:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:25:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:25:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:25:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 11:25:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 11:25:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:25:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:25:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 11:25:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 11:25:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:25:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:25:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:25:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:25:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:25:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:25:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:25:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:25:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 11:25:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 11:25:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-21 11:25:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-21 11:25:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 11:25:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 11:25:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:25:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-07-21 11:25:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-07-21 11:25:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:25:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-21 11:25:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-21 11:25:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:25:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:25:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:25:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:25:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:25:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:25:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:25:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 11:25:39,998 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 11:25:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:25:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-07-21 11:25:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-07-21 11:25:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:25:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:25:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:25:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-21 11:25:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-21 11:25:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-07-21 11:25:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-07-21 11:25:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:25:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:25:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 11:25:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 11:25:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:25:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:25:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-07-21 11:25:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-07-21 11:25:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-07-21 11:25:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-07-21 11:25:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:25:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:25:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-07-21 11:25:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-07-21 11:25:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:25:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:25:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-07-21 11:25:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-07-21 11:25:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-07-21 11:25:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-07-21 11:25:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:25:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:25:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 11:25:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 11:25:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-21 11:25:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-21 11:25:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-07-21 11:25:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-07-21 11:25:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:25:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:25:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:25:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:25:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-07-21 11:25:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-07-21 11:25:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 11:25:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 11:25:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 11:25:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 11:25:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-21 11:25:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-21 11:25:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:25:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:25:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-21 11:25:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-21 11:25:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:25:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:25:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:25:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:25:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-21 11:25:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-21 11:25:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:25:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:25:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:25:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-21 11:25:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-21 11:25:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-07-21 11:25:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-07-21 11:25:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:25:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-07-21 11:25:40,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-07-21 11:25:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:25:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:25:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:25:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-07-21 11:25:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-07-21 11:25:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:25:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:25:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:25:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:25:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:25:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-07-21 11:25:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-07-21 11:25:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-07-21 11:25:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-07-21 11:25:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-07-21 11:25:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-07-21 11:25:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:25:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:25:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:25:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:25:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 11:25:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 11:25:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:25:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-07-21 11:25:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-07-21 11:25:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-21 11:25:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-21 11:25:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:25:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:25:40,740 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:25:40,742 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:25:43,377 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:26:45,744 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:26:45,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:26:45,757 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 11:26:45,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:45 BoogieIcfgContainer [2022-07-21 11:26:45,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:26:45,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:26:45,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:26:45,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:26:45,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:25:36" (1/3) ... [2022-07-21 11:26:45,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62307676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:45, skipping insertion in model container [2022-07-21 11:26:45,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (2/3) ... [2022-07-21 11:26:45,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62307676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:45, skipping insertion in model container [2022-07-21 11:26:45,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:45" (3/3) ... [2022-07-21 11:26:45,767 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 11:26:45,778 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:26:45,778 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:26:45,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:26:45,855 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@36d8e687, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57799bee [2022-07-21 11:26:45,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:26:45,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 1148 states, 811 states have (on average 1.3218249075215782) internal successors, (1072), 834 states have internal predecessors, (1072), 279 states have call successors, (279), 57 states have call predecessors, (279), 56 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2022-07-21 11:26:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 11:26:45,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:26:45,890 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 11:26:45,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:26:45,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:26:45,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1023729415, now seen corresponding path program 1 times [2022-07-21 11:26:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:26:45,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880755195] [2022-07-21 11:26:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:26:45,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:26:45,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:26:45,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:26:45,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:26:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:26:46,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:26:46,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:26:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:26:48,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:26:48,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:26:48,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880755195] [2022-07-21 11:26:48,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880755195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:26:48,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:26:48,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:26:48,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55287109] [2022-07-21 11:26:48,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:26:48,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:26:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:26:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:26:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:26:48,107 INFO L87 Difference]: Start difference. First operand has 1148 states, 811 states have (on average 1.3218249075215782) internal successors, (1072), 834 states have internal predecessors, (1072), 279 states have call successors, (279), 57 states have call predecessors, (279), 56 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:26:49,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:26:49,361 INFO L93 Difference]: Finished difference Result 3435 states and 4930 transitions. [2022-07-21 11:26:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:26:49,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2022-07-21 11:26:49,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:26:49,394 INFO L225 Difference]: With dead ends: 3435 [2022-07-21 11:26:49,395 INFO L226 Difference]: Without dead ends: 2252 [2022-07-21 11:26:49,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:26:49,414 INFO L413 NwaCegarLoop]: 1887 mSDtfsCounter, 1605 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:26:49,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 7253 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:26:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-07-21 11:26:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2239. [2022-07-21 11:26:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 1585 states have (on average 1.3097791798107254) internal successors, (2076), 1619 states have internal predecessors, (2076), 542 states have call successors, (542), 112 states have call predecessors, (542), 111 states have return successors, (543), 537 states have call predecessors, (543), 541 states have call successors, (543) [2022-07-21 11:26:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3161 transitions. [2022-07-21 11:26:49,622 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3161 transitions. Word has length 93 [2022-07-21 11:26:49,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:26:49,622 INFO L495 AbstractCegarLoop]: Abstraction has 2239 states and 3161 transitions. [2022-07-21 11:26:49,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:26:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3161 transitions. [2022-07-21 11:26:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 11:26:49,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:26:49,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 11:26:49,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 11:26:49,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:26:49,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:26:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:26:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash 988225853, now seen corresponding path program 1 times [2022-07-21 11:26:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:26:49,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182030777] [2022-07-21 11:26:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:26:49,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:26:49,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:26:49,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:26:49,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:26:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:26:50,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:26:50,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:26:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:26:52,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:26:52,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:26:52,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182030777] [2022-07-21 11:26:52,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182030777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:26:52,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:26:52,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:26:52,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618537022] [2022-07-21 11:26:52,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:26:52,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:26:52,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:26:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:26:52,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:26:52,138 INFO L87 Difference]: Start difference. First operand 2239 states and 3161 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:26:53,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:26:53,385 INFO L93 Difference]: Finished difference Result 6719 states and 9495 transitions. [2022-07-21 11:26:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:26:53,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2022-07-21 11:26:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:26:53,415 INFO L225 Difference]: With dead ends: 6719 [2022-07-21 11:26:53,416 INFO L226 Difference]: Without dead ends: 4489 [2022-07-21 11:26:53,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:26:53,434 INFO L413 NwaCegarLoop]: 1859 mSDtfsCounter, 1575 mSDsluCounter, 5279 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:26:53,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 7138 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:26:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2022-07-21 11:26:53,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4468. [2022-07-21 11:26:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 3165 states have (on average 1.3086887835703) internal successors, (4142), 3232 states have internal predecessors, (4142), 1079 states have call successors, (1079), 224 states have call predecessors, (1079), 223 states have return successors, (1086), 1071 states have call predecessors, (1086), 1078 states have call successors, (1086) [2022-07-21 11:26:53,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 6307 transitions. [2022-07-21 11:26:53,635 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 6307 transitions. Word has length 94 [2022-07-21 11:26:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:26:53,636 INFO L495 AbstractCegarLoop]: Abstraction has 4468 states and 6307 transitions. [2022-07-21 11:26:53,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:26:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 6307 transitions. [2022-07-21 11:26:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 11:26:53,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:26:53,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 11:26:53,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:26:53,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:26:53,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:26:53,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:26:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1343295556, now seen corresponding path program 1 times [2022-07-21 11:26:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:26:53,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622325074] [2022-07-21 11:26:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:26:53,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:26:53,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:26:53,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:26:53,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:26:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:26:54,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:26:54,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:26:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:26:55,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:26:55,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:26:55,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622325074] [2022-07-21 11:26:55,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622325074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:26:55,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:26:55,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:26:55,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568626842] [2022-07-21 11:26:55,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:26:55,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:26:55,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:26:55,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:26:55,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:26:55,996 INFO L87 Difference]: Start difference. First operand 4468 states and 6307 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:26:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:26:57,429 INFO L93 Difference]: Finished difference Result 13429 states and 18971 transitions. [2022-07-21 11:26:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:26:57,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2022-07-21 11:26:57,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:26:57,497 INFO L225 Difference]: With dead ends: 13429 [2022-07-21 11:26:57,497 INFO L226 Difference]: Without dead ends: 8970 [2022-07-21 11:26:57,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:26:57,528 INFO L413 NwaCegarLoop]: 1859 mSDtfsCounter, 1576 mSDsluCounter, 5279 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:26:57,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 7138 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:26:57,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8970 states. [2022-07-21 11:26:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8970 to 8931. [2022-07-21 11:26:57,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 6330 states have (on average 1.307740916271722) internal successors, (8278), 6462 states have internal predecessors, (8278), 2152 states have call successors, (2152), 449 states have call predecessors, (2152), 448 states have return successors, (2175), 2139 states have call predecessors, (2175), 2151 states have call successors, (2175) [2022-07-21 11:26:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 12605 transitions. [2022-07-21 11:26:57,932 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 12605 transitions. Word has length 95 [2022-07-21 11:26:57,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:26:57,933 INFO L495 AbstractCegarLoop]: Abstraction has 8931 states and 12605 transitions. [2022-07-21 11:26:57,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:26:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 12605 transitions. [2022-07-21 11:26:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 11:26:57,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:26:57,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 11:26:57,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:26:58,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:26:58,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:26:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:26:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash 415212745, now seen corresponding path program 1 times [2022-07-21 11:26:58,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:26:58,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440946108] [2022-07-21 11:26:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:26:58,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:26:58,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:26:58,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:26:58,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:26:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:26:59,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:26:59,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:27:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:27:00,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:27:00,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:27:00,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440946108] [2022-07-21 11:27:00,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440946108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:27:00,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:27:00,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:27:00,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689133513] [2022-07-21 11:27:00,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:27:00,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:27:00,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:27:00,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:27:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:27:00,508 INFO L87 Difference]: Start difference. First operand 8931 states and 12605 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:27:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:27:02,119 INFO L93 Difference]: Finished difference Result 26687 states and 37676 transitions. [2022-07-21 11:27:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:27:02,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2022-07-21 11:27:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:27:02,249 INFO L225 Difference]: With dead ends: 26687 [2022-07-21 11:27:02,250 INFO L226 Difference]: Without dead ends: 17765 [2022-07-21 11:27:02,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:27:02,312 INFO L413 NwaCegarLoop]: 1859 mSDtfsCounter, 1577 mSDsluCounter, 5279 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:27:02,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 7138 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 11:27:02,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17765 states. [2022-07-21 11:27:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17765 to 17693. [2022-07-21 11:27:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17693 states, 12549 states have (on average 1.3064786038728184) internal successors, (16395), 12805 states have internal predecessors, (16395), 4248 states have call successors, (4248), 896 states have call predecessors, (4248), 895 states have return successors, (4311), 4227 states have call predecessors, (4311), 4247 states have call successors, (4311) [2022-07-21 11:27:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17693 states to 17693 states and 24954 transitions. [2022-07-21 11:27:03,102 INFO L78 Accepts]: Start accepts. Automaton has 17693 states and 24954 transitions. Word has length 100 [2022-07-21 11:27:03,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:27:03,103 INFO L495 AbstractCegarLoop]: Abstraction has 17693 states and 24954 transitions. [2022-07-21 11:27:03,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:27:03,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17693 states and 24954 transitions. [2022-07-21 11:27:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-21 11:27:03,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:27:03,118 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 11:27:03,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:27:03,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:27:03,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:27:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:27:03,332 INFO L85 PathProgramCache]: Analyzing trace with hash 372583021, now seen corresponding path program 1 times [2022-07-21 11:27:03,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:27:03,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112533774] [2022-07-21 11:27:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:27:03,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:27:03,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:27:03,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:27:03,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:27:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:27:04,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:27:04,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:27:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 11:27:06,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:27:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 11:27:09,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:27:09,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112533774] [2022-07-21 11:27:09,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112533774] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 11:27:09,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:27:09,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-21 11:27:09,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107645401] [2022-07-21 11:27:09,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:27:09,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:27:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:27:09,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:27:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-21 11:27:09,211 INFO L87 Difference]: Start difference. First operand 17693 states and 24954 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 11:27:11,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:13,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:27:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:27:54,626 INFO L93 Difference]: Finished difference Result 47469 states and 67417 transitions. [2022-07-21 11:27:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 11:27:54,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2022-07-21 11:27:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:27:54,799 INFO L225 Difference]: With dead ends: 47469 [2022-07-21 11:27:54,799 INFO L226 Difference]: Without dead ends: 29785 [2022-07-21 11:27:54,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-21 11:27:54,893 INFO L413 NwaCegarLoop]: 2732 mSDtfsCounter, 2443 mSDsluCounter, 10671 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 314 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 13403 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:27:54,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 13403 Invalid, 2355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [314 Valid, 2039 Invalid, 2 Unknown, 0 Unchecked, 40.6s Time] [2022-07-21 11:27:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29785 states. [2022-07-21 11:27:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29785 to 26356. [2022-07-21 11:27:56,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26356 states, 18693 states have (on average 1.306906328572193) internal successors, (24430), 19069 states have internal predecessors, (24430), 6332 states have call successors, (6332), 1331 states have call predecessors, (6332), 1330 states have return successors, (6419), 6307 states have call predecessors, (6419), 6331 states have call successors, (6419) [2022-07-21 11:27:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26356 states to 26356 states and 37181 transitions. [2022-07-21 11:27:56,792 INFO L78 Accepts]: Start accepts. Automaton has 26356 states and 37181 transitions. Word has length 105 [2022-07-21 11:27:56,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:27:56,793 INFO L495 AbstractCegarLoop]: Abstraction has 26356 states and 37181 transitions. [2022-07-21 11:27:56,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 11:27:56,794 INFO L276 IsEmpty]: Start isEmpty. Operand 26356 states and 37181 transitions. [2022-07-21 11:27:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-21 11:27:56,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:27:56,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 11:27:56,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:27:57,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:27:57,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:27:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:27:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1011345320, now seen corresponding path program 1 times [2022-07-21 11:27:57,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:27:57,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963081371] [2022-07-21 11:27:57,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:27:57,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:27:57,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:27:57,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:27:57,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:27:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:27:57,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:27:57,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:28:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:28:00,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:28:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:28:02,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:28:02,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963081371] [2022-07-21 11:28:02,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963081371] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:28:02,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:28:02,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-21 11:28:02,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230032758] [2022-07-21 11:28:02,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:28:02,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 11:28:02,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:28:02,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 11:28:02,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 11:28:02,697 INFO L87 Difference]: Start difference. First operand 26356 states and 37181 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 11:28:04,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:28:06,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []