./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:59:56,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:59:56,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:59:56,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:59:56,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:59:56,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:59:56,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:59:56,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:59:56,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:59:56,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:59:56,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:59:56,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:59:56,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:59:56,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:59:56,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:59:56,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:59:56,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:59:56,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:59:56,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:59:56,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:59:56,646 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:59:56,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:59:56,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:59:56,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:59:56,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:59:56,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:59:56,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:59:56,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:59:56,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:59:56,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:59:56,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:59:56,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:59:56,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:59:56,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:59:56,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:59:56,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:59:56,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:59:56,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:59:56,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:59:56,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:59:56,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:59:56,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:59:56,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:59:56,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:59:56,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:59:56,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:59:56,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:59:56,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:59:56,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:59:56,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:59:56,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:59:56,693 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:59:56,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:59:56,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:59:56,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:59:56,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:59:56,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:59:56,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:59:56,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:59:56,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:59:56,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:59:56,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:59:56,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:59:56,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:59:56,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:59:56,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:59:56,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:59:56,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:59:56,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:59:56,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:59:56,697 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:59:56,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:59:56,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:59:56,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-14 01:59:56,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:59:56,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:59:56,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:59:56,890 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:59:56,891 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:59:56,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-14 01:59:56,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4295541/a325b3f9d0f643698c2b35eee3214b03/FLAG3b3e21a0f [2022-07-14 01:59:57,533 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:59:57,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-14 01:59:57,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4295541/a325b3f9d0f643698c2b35eee3214b03/FLAG3b3e21a0f [2022-07-14 01:59:57,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4295541/a325b3f9d0f643698c2b35eee3214b03 [2022-07-14 01:59:57,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:59:57,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:59:57,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:59:57,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:59:57,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:59:57,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:59:57" (1/1) ... [2022-07-14 01:59:57,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c4facb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:59:57, skipping insertion in model container [2022-07-14 01:59:57,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:59:57" (1/1) ... [2022-07-14 01:59:58,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:59:58,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:59:59,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-14 01:59:59,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:59:59,257 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:59:59,421 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 01:59:59,426 INFO L158 Benchmark]: Toolchain (without parser) took 1450.38ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 68.7MB in the beginning and 103.4MB in the end (delta: -34.7MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2022-07-14 01:59:59,427 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 75.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 01:59:59,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1447.15ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 68.6MB in the beginning and 103.4MB in the end (delta: -34.9MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2022-07-14 01:59:59,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 75.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1447.15ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 68.6MB in the beginning and 103.4MB in the end (delta: -34.9MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:00:00,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:00:00,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:00:00,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:00:00,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:00:00,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:00:00,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:00:00,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:00:00,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:00:01,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:00:01,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:00:01,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:00:01,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:00:01,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:00:01,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:00:01,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:00:01,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:00:01,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:00:01,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:00:01,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:00:01,019 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:00:01,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:00:01,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:00:01,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:00:01,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:00:01,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:00:01,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:00:01,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:00:01,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:00:01,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:00:01,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:00:01,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:00:01,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:00:01,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:00:01,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:00:01,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:00:01,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:00:01,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:00:01,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:00:01,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:00:01,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:00:01,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:00:01,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 02:00:01,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:00:01,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:00:01,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:00:01,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:00:01,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:00:01,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:00:01,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:00:01,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:00:01,070 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:00:01,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:00:01,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:00:01,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:00:01,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:00:01,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:00:01,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 02:00:01,072 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 02:00:01,072 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 02:00:01,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:00:01,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:00:01,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:00:01,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:00:01,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:00:01,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:00:01,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:00:01,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:00:01,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:00:01,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:00:01,074 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 02:00:01,074 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 02:00:01,074 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:00:01,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:00:01,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:00:01,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 02:00:01,075 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-14 02:00:01,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:00:01,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:00:01,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:00:01,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:00:01,381 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:00:01,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-14 02:00:01,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf5ec8bf2/fc1fd4cfe8854925819752163f25087a/FLAGd1de504c0 [2022-07-14 02:00:02,120 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:00:02,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-14 02:00:02,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf5ec8bf2/fc1fd4cfe8854925819752163f25087a/FLAGd1de504c0 [2022-07-14 02:00:02,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf5ec8bf2/fc1fd4cfe8854925819752163f25087a [2022-07-14 02:00:02,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:00:02,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:00:02,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:00:02,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:00:02,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:00:02,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:00:02" (1/1) ... [2022-07-14 02:00:02,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488e2400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:02, skipping insertion in model container [2022-07-14 02:00:02,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:00:02" (1/1) ... [2022-07-14 02:00:02,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:00:02,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:00:03,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-14 02:00:03,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:00:03,821 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 02:00:03,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:00:04,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-14 02:00:04,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:00:04,090 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:00:04,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-14 02:00:04,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:00:04,316 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:00:04,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04 WrapperNode [2022-07-14 02:00:04,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:00:04,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:00:04,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:00:04,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:00:04,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,507 INFO L137 Inliner]: procedures = 229, calls = 1656, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3017 [2022-07-14 02:00:04,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 02:00:04,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 02:00:04,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 02:00:04,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 02:00:04,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 02:00:04,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 02:00:04,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 02:00:04,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 02:00:04,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (1/1) ... [2022-07-14 02:00:04,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:00:04,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:00:04,804 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) [2022-07-14 02:00:04,810 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 [2022-07-14 02:00:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 02:00:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 02:00:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 02:00:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 02:00:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 02:00:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 02:00:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 02:00:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 02:00:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 02:00:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 02:00:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 02:00:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 02:00:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 02:00:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 02:00:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 02:00:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 02:00:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 02:00:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-14 02:00:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-14 02:00:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 02:00:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 02:00:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 02:00:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-07-14 02:00:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-07-14 02:00:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 02:00:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 02:00:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 02:00:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 02:00:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 02:00:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 02:00:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 02:00:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 02:00:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 02:00:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 02:00:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 02:00:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 02:00:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 02:00:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-07-14 02:00:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-07-14 02:00:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 02:00:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 02:00:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 02:00:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-14 02:00:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-14 02:00:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-14 02:00:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-14 02:00:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-07-14 02:00:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-07-14 02:00:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 02:00:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 02:00:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 02:00:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 02:00:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 02:00:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 02:00:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-07-14 02:00:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-07-14 02:00:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-07-14 02:00:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-07-14 02:00:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 02:00:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 02:00:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-07-14 02:00:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-07-14 02:00:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-07-14 02:00:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-07-14 02:00:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-07-14 02:00:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-07-14 02:00:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 02:00:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 02:00:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 02:00:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 02:00:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-07-14 02:00:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-07-14 02:00:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-14 02:00:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-14 02:00:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-07-14 02:00:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-07-14 02:00:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 02:00:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 02:00:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 02:00:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 02:00:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 02:00:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 02:00:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-07-14 02:00:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-07-14 02:00:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 02:00:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 02:00:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-14 02:00:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-14 02:00:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 02:00:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 02:00:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 02:00:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 02:00:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-14 02:00:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-14 02:00:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 02:00:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 02:00:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 02:00:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 02:00:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 02:00:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 02:00:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 02:00:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 02:00:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 02:00:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-14 02:00:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-14 02:00:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-07-14 02:00:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-07-14 02:00:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 02:00:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-07-14 02:00:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-07-14 02:00:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 02:00:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 02:00:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 02:00:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-07-14 02:00:04,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-07-14 02:00:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 02:00:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 02:00:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 02:00:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 02:00:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 02:00:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-07-14 02:00:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-07-14 02:00:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-07-14 02:00:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-07-14 02:00:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-07-14 02:00:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-07-14 02:00:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 02:00:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 02:00:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 02:00:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 02:00:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 02:00:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-07-14 02:00:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-07-14 02:00:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-14 02:00:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-14 02:00:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 02:00:04,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 02:00:05,449 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 02:00:05,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 02:00:08,087 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 02:01:16,146 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 02:01:16,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 02:01:16,165 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 02:01:16,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:01:16 BoogieIcfgContainer [2022-07-14 02:01:16,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 02:01:16,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 02:01:16,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 02:01:16,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 02:01:16,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:00:02" (1/3) ... [2022-07-14 02:01:16,173 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 14.07 02:01:16, skipping insertion in model container [2022-07-14 02:01:16,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:00:04" (2/3) ... [2022-07-14 02:01:16,174 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 14.07 02:01:16, skipping insertion in model container [2022-07-14 02:01:16,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:01:16" (3/3) ... [2022-07-14 02:01:16,175 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-14 02:01:16,184 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 02:01:16,185 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 02:01:16,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 02:01:16,235 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 [2022-07-14 02:01:16,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 02:01:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2022-07-14 02:01:16,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-14 02:01:16,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:16,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:16,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1435178121, now seen corresponding path program 1 times [2022-07-14 02:01:16,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:16,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880755195] [2022-07-14 02:01:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:16,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:16,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:16,293 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) [2022-07-14 02:01:16,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 02:01:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:17,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:01:17,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:19,224 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:01:19,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:19,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:19,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880755195] [2022-07-14 02:01:19,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880755195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:19,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:19,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:01:19,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55287109] [2022-07-14 02:01:19,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:19,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:01:19,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:19,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:01:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:01:19,250 INFO L87 Difference]: Start difference. First operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:01:20,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:20,242 INFO L93 Difference]: Finished difference Result 3339 states and 4785 transitions. [2022-07-14 02:01:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:01:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-14 02:01:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:20,278 INFO L225 Difference]: With dead ends: 3339 [2022-07-14 02:01:20,278 INFO L226 Difference]: Without dead ends: 2187 [2022-07-14 02:01:20,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:01:20,297 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1543 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:20,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 7436 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 02:01:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-07-14 02:01:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2178. [2022-07-14 02:01:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 1528 states have (on average 1.3082460732984293) internal successors, (1999), 1554 states have internal predecessors, (1999), 532 states have call successors, (532), 118 states have call predecessors, (532), 117 states have return successors, (533), 531 states have call predecessors, (533), 531 states have call successors, (533) [2022-07-14 02:01:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3064 transitions. [2022-07-14 02:01:20,504 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3064 transitions. Word has length 158 [2022-07-14 02:01:20,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:20,505 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 3064 transitions. [2022-07-14 02:01:20,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:01:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3064 transitions. [2022-07-14 02:01:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-14 02:01:20,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:20,514 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:20,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:20,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:20,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:20,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1612545232, now seen corresponding path program 1 times [2022-07-14 02:01:20,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:20,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062669108] [2022-07-14 02:01:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:20,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:20,733 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) [2022-07-14 02:01:20,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 02:01:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:21,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:01:21,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:01:23,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:23,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:23,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062669108] [2022-07-14 02:01:23,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062669108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:23,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:23,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:01:23,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520220399] [2022-07-14 02:01:23,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:23,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:01:23,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:23,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:01:23,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:01:23,440 INFO L87 Difference]: Start difference. First operand 2178 states and 3064 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:01:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:24,435 INFO L93 Difference]: Finished difference Result 6535 states and 9203 transitions. [2022-07-14 02:01:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:01:24,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2022-07-14 02:01:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:24,460 INFO L225 Difference]: With dead ends: 6535 [2022-07-14 02:01:24,461 INFO L226 Difference]: Without dead ends: 4366 [2022-07-14 02:01:24,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:01:24,473 INFO L413 NwaCegarLoop]: 1935 mSDtfsCounter, 1512 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 7313 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:24,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 7313 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 02:01:24,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-07-14 02:01:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4351. [2022-07-14 02:01:24,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3054 states have (on average 1.306483300589391) internal successors, (3990), 3106 states have internal predecessors, (3990), 1060 states have call successors, (1060), 237 states have call predecessors, (1060), 236 states have return successors, (1067), 1059 states have call predecessors, (1067), 1059 states have call successors, (1067) [2022-07-14 02:01:24,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6117 transitions. [2022-07-14 02:01:24,674 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6117 transitions. Word has length 153 [2022-07-14 02:01:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:24,675 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6117 transitions. [2022-07-14 02:01:24,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:01:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6117 transitions. [2022-07-14 02:01:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-14 02:01:24,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:24,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:24,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:24,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:24,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:24,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash 907320420, now seen corresponding path program 1 times [2022-07-14 02:01:24,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:24,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187817608] [2022-07-14 02:01:24,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:24,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:24,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:24,907 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) [2022-07-14 02:01:24,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 02:01:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:25,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:01:25,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:01:27,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:27,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:27,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187817608] [2022-07-14 02:01:27,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187817608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:27,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:27,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:01:27,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473287695] [2022-07-14 02:01:27,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:27,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:01:27,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:27,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:01:27,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:01:27,596 INFO L87 Difference]: Start difference. First operand 4351 states and 6117 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:01:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:28,733 INFO L93 Difference]: Finished difference Result 13068 states and 18388 transitions. [2022-07-14 02:01:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:01:28,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2022-07-14 02:01:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:28,795 INFO L225 Difference]: With dead ends: 13068 [2022-07-14 02:01:28,796 INFO L226 Difference]: Without dead ends: 8726 [2022-07-14 02:01:28,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:01:28,819 INFO L413 NwaCegarLoop]: 1928 mSDtfsCounter, 1513 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:28,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 7294 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 02:01:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-07-14 02:01:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8659. [2022-07-14 02:01:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8659 states, 6074 states have (on average 1.3062232466249588) internal successors, (7934), 6190 states have internal predecessors, (7934), 2112 states have call successors, (2112), 473 states have call predecessors, (2112), 472 states have return successors, (2135), 2099 states have call predecessors, (2135), 2111 states have call successors, (2135) [2022-07-14 02:01:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8659 states to 8659 states and 12181 transitions. [2022-07-14 02:01:29,130 INFO L78 Accepts]: Start accepts. Automaton has 8659 states and 12181 transitions. Word has length 152 [2022-07-14 02:01:29,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:29,131 INFO L495 AbstractCegarLoop]: Abstraction has 8659 states and 12181 transitions. [2022-07-14 02:01:29,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 02:01:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 8659 states and 12181 transitions. [2022-07-14 02:01:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-14 02:01:29,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:29,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:29,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:29,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:29,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:29,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1809736159, now seen corresponding path program 1 times [2022-07-14 02:01:29,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:29,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198629990] [2022-07-14 02:01:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:29,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:29,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:29,364 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) [2022-07-14 02:01:29,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 02:01:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:30,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:01:30,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:01:32,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:32,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:32,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198629990] [2022-07-14 02:01:32,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198629990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:32,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:32,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:01:32,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352391567] [2022-07-14 02:01:32,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:32,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:01:32,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:32,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:01:32,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:01:32,078 INFO L87 Difference]: Start difference. First operand 8659 states and 12181 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 02:01:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:33,243 INFO L93 Difference]: Finished difference Result 25850 states and 36374 transitions. [2022-07-14 02:01:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:01:33,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2022-07-14 02:01:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:33,342 INFO L225 Difference]: With dead ends: 25850 [2022-07-14 02:01:33,343 INFO L226 Difference]: Without dead ends: 17200 [2022-07-14 02:01:33,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:01:33,382 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 1514 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:33,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 6911 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 02:01:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17200 states. [2022-07-14 02:01:34,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17200 to 17128. [2022-07-14 02:01:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17128 states, 12023 states have (on average 1.3049155784745903) internal successors, (15689), 12247 states have internal predecessors, (15689), 4162 states have call successors, (4162), 943 states have call predecessors, (4162), 942 states have return successors, (4225), 4141 states have call predecessors, (4225), 4161 states have call successors, (4225) [2022-07-14 02:01:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17128 states to 17128 states and 24076 transitions. [2022-07-14 02:01:34,246 INFO L78 Accepts]: Start accepts. Automaton has 17128 states and 24076 transitions. Word has length 154 [2022-07-14 02:01:34,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:34,246 INFO L495 AbstractCegarLoop]: Abstraction has 17128 states and 24076 transitions. [2022-07-14 02:01:34,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 02:01:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 17128 states and 24076 transitions. [2022-07-14 02:01:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-14 02:01:34,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:34,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:34,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:34,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:34,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:34,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:34,480 INFO L85 PathProgramCache]: Analyzing trace with hash 111546844, now seen corresponding path program 1 times [2022-07-14 02:01:34,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:34,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640829667] [2022-07-14 02:01:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:34,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:34,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:34,483 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) [2022-07-14 02:01:34,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 02:01:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:35,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 02:01:35,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-14 02:01:37,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:01:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-14 02:01:40,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:40,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640829667] [2022-07-14 02:01:40,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640829667] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 02:01:40,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:01:40,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-14 02:01:40,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358255733] [2022-07-14 02:01:40,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:40,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 02:01:40,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:40,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 02:01:40,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:01:40,004 INFO L87 Difference]: Start difference. First operand 17128 states and 24076 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-14 02:01:42,090 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 [] [2022-07-14 02:01:44,104 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 [] [2022-07-14 02:02:16,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:16,816 INFO L93 Difference]: Finished difference Result 46150 states and 65399 transitions. [2022-07-14 02:02:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 02:02:16,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2022-07-14 02:02:16,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:16,943 INFO L225 Difference]: With dead ends: 46150 [2022-07-14 02:02:16,943 INFO L226 Difference]: Without dead ends: 29031 [2022-07-14 02:02:17,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-14 02:02:17,002 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 2406 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 330 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 13667 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:17,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 13667 Invalid, 2398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [330 Valid, 2066 Invalid, 2 Unknown, 0 Unchecked, 32.9s Time] [2022-07-14 02:02:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29031 states. [2022-07-14 02:02:18,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29031 to 25498. [2022-07-14 02:02:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25498 states, 17897 states have (on average 1.3053584399620048) internal successors, (23362), 18225 states have internal predecessors, (23362), 6200 states have call successors, (6200), 1401 states have call predecessors, (6200), 1400 states have return successors, (6287), 6175 states have call predecessors, (6287), 6199 states have call successors, (6287) [2022-07-14 02:02:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25498 states to 25498 states and 35849 transitions. [2022-07-14 02:02:18,313 INFO L78 Accepts]: Start accepts. Automaton has 25498 states and 35849 transitions. Word has length 163 [2022-07-14 02:02:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:18,313 INFO L495 AbstractCegarLoop]: Abstraction has 25498 states and 35849 transitions. [2022-07-14 02:02:18,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-14 02:02:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 25498 states and 35849 transitions. [2022-07-14 02:02:18,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 02:02:18,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:18,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:18,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:18,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:18,532 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:18,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:18,533 INFO L85 PathProgramCache]: Analyzing trace with hash -25816105, now seen corresponding path program 1 times [2022-07-14 02:02:18,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:18,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884480648] [2022-07-14 02:02:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:02:18,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:18,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:18,536 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) [2022-07-14 02:02:18,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 02:02:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:02:19,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 02:02:19,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:22,211 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:02:22,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:02:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:02:24,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:24,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884480648] [2022-07-14 02:02:24,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884480648] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:02:24,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:02:24,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-14 02:02:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879827553] [2022-07-14 02:02:24,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:02:24,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 02:02:24,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 02:02:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:02:24,139 INFO L87 Difference]: Start difference. First operand 25498 states and 35849 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-14 02:02:26,215 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 [] [2022-07-14 02:02:28,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:02:30,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:03:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:03:43,155 INFO L93 Difference]: Finished difference Result 58644 states and 82941 transitions. [2022-07-14 02:03:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-14 02:03:43,156 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 169 [2022-07-14 02:03:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:03:43,321 INFO L225 Difference]: With dead ends: 58644 [2022-07-14 02:03:43,322 INFO L226 Difference]: Without dead ends: 33155 [2022-07-14 02:03:43,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 02:03:43,402 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 5706 mSDsluCounter, 20048 mSDsCounter, 0 mSdLazyCounter, 4944 mSolverCounterSat, 1352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5833 SdHoareTripleChecker+Valid, 23782 SdHoareTripleChecker+Invalid, 6299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 4944 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.7s IncrementalHoareTripleChecker+Time [2022-07-14 02:03:43,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5833 Valid, 23782 Invalid, 6299 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1352 Valid, 4944 Invalid, 3 Unknown, 0 Unchecked, 71.7s Time] [2022-07-14 02:03:43,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33155 states. [2022-07-14 02:03:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33155 to 29604. [2022-07-14 02:03:44,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29604 states, 20779 states have (on average 1.3051157418547572) internal successors, (27119), 21163 states have internal predecessors, (27119), 7194 states have call successors, (7194), 1631 states have call predecessors, (7194), 1630 states have return successors, (7293), 7161 states have call predecessors, (7293), 7193 states have call successors, (7293) [2022-07-14 02:03:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29604 states to 29604 states and 41606 transitions. [2022-07-14 02:03:44,723 INFO L78 Accepts]: Start accepts. Automaton has 29604 states and 41606 transitions. Word has length 169 [2022-07-14 02:03:44,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:03:44,725 INFO L495 AbstractCegarLoop]: Abstraction has 29604 states and 41606 transitions. [2022-07-14 02:03:44,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-14 02:03:44,725 INFO L276 IsEmpty]: Start isEmpty. Operand 29604 states and 41606 transitions. [2022-07-14 02:03:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-14 02:03:44,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:03:44,755 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:03:44,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 02:03:44,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:03:44,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:03:44,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:03:44,956 INFO L85 PathProgramCache]: Analyzing trace with hash -3469995, now seen corresponding path program 1 times [2022-07-14 02:03:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:03:44,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524913577] [2022-07-14 02:03:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:03:44,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:03:44,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:03:44,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:03:44,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 02:03:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:03:45,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 02:03:45,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:03:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:03:48,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:03:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-14 02:03:50,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:03:50,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524913577] [2022-07-14 02:03:50,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524913577] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:03:50,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:03:50,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-14 02:03:50,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902854990] [2022-07-14 02:03:50,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:03:50,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 02:03:50,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:03:50,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 02:03:50,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:03:50,311 INFO L87 Difference]: Start difference. First operand 29604 states and 41606 transitions. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 9 states have internal predecessors, (145), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-14 02:03:52,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:03:54,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:03:56,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:03:58,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []