./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--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-?-6c24879 [2022-07-12 14:19:14,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:19:14,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:19:14,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:19:14,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:19:14,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:19:14,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:19:14,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:19:14,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:19:14,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:19:14,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:19:14,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:19:14,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:19:14,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:19:14,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:19:14,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:19:14,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:19:14,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:19:14,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:19:14,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:19:14,623 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:19:14,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:19:14,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:19:14,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:19:14,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:19:14,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:19:14,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:19:14,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:19:14,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:19:14,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:19:14,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:19:14,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:19:14,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:19:14,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:19:14,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:19:14,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:19:14,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:19:14,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:19:14,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:19:14,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:19:14,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:19:14,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:19:14,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:19:14,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:19:14,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:19:14,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:19:14,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:19:14,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:19:14,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:19:14,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:19:14,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:19:14,671 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:19:14,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:19:14,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:19:14,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:19:14,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:19:14,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:19:14,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:19:14,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:19:14,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:19:14,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:19:14,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:19:14,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:19:14,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:19:14,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:19:14,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:19:14,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:19:14,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:19:14,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:19:14,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:19:14,675 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:19:14,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:19:14,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:19:14,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-12 14:19:14,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:19:14,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:19:14,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:19:14,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:19:14,843 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:19:14,843 INFO L432 ainManager$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 [2022-07-12 14:19:14,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576e960ef/feff85e6f0e84db5b687e6452c559fba/FLAG02c2f0ecc [2022-07-12 14:19:15,558 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:19:15,559 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 [2022-07-12 14:19:15,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576e960ef/feff85e6f0e84db5b687e6452c559fba/FLAG02c2f0ecc [2022-07-12 14:19:15,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576e960ef/feff85e6f0e84db5b687e6452c559fba [2022-07-12 14:19:15,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:19:15,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:19:15,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:19:15,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:19:15,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:19:15,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:19:15" (1/1) ... [2022-07-12 14:19:15,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5fe90d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:15, skipping insertion in model container [2022-07-12 14:19:15,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:19:15" (1/1) ... [2022-07-12 14:19:15,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:19:15,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:19:16,917 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] [2022-07-12 14:19:16,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:19:17,001 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:19:17,149 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) [2022-07-12 14:19:17,158 INFO L158 Benchmark]: Toolchain (without parser) took 1466.27ms. Allocated memory was 146.8MB in the beginning and 293.6MB in the end (delta: 146.8MB). Free memory was 107.3MB in the beginning and 180.8MB in the end (delta: -73.5MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2022-07-12 14:19:17,158 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:19:17,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1464.91ms. Allocated memory was 146.8MB in the beginning and 293.6MB in the end (delta: 146.8MB). Free memory was 106.9MB in the beginning and 180.8MB in the end (delta: -73.9MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2022-07-12 14:19:17,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1464.91ms. Allocated memory was 146.8MB in the beginning and 293.6MB in the end (delta: 146.8MB). Free memory was 106.9MB in the beginning and 180.8MB in the end (delta: -73.9MB). Peak memory consumption was 79.6MB. 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-?-6c24879 [2022-07-12 14:19:18,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:19:18,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:19:18,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:19:18,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:19:18,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:19:18,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:19:18,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:19:18,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:19:18,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:19:18,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:19:18,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:19:18,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:19:18,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:19:18,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:19:18,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:19:18,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:19:18,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:19:18,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:19:18,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:19:18,887 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:19:18,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:19:18,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:19:18,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:19:18,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:19:18,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:19:18,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:19:18,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:19:18,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:19:18,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:19:18,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:19:18,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:19:18,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:19:18,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:19:18,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:19:18,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:19:18,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:19:18,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:19:18,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:19:18,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:19:18,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:19:18,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:19:18,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:19:18,932 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:19:18,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:19:18,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:19:18,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:19:18,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:19:18,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:19:18,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:19:18,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:19:18,934 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:19:18,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:19:18,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:19:18,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:19:18,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:19:18,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:19:18,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:19:18,941 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:19:18,941 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:19:18,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:19:18,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:19:18,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:19:18,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:19:18,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:19:18,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:19:18,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:19:18,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:19:18,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:19:18,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:19:18,943 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:19:18,943 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:19:18,943 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:19:18,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:19:18,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:19:18,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:19:18,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-12 14:19:19,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:19:19,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:19:19,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:19:19,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:19:19,227 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:19:19,228 INFO L432 ainManager$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 [2022-07-12 14:19:19,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f500048e7/ade8d01c51c44062b59586944cb235e7/FLAG56e32ee3e [2022-07-12 14:19:19,939 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:19:19,940 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 [2022-07-12 14:19:19,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f500048e7/ade8d01c51c44062b59586944cb235e7/FLAG56e32ee3e [2022-07-12 14:19:20,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f500048e7/ade8d01c51c44062b59586944cb235e7 [2022-07-12 14:19:20,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:19:20,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:19:20,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:19:20,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:19:20,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:19:20,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:19:20" (1/1) ... [2022-07-12 14:19:20,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14808421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:20, skipping insertion in model container [2022-07-12 14:19:20,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:19:20" (1/1) ... [2022-07-12 14:19:20,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:19:20,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:19:21,518 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] [2022-07-12 14:19:21,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:19:21,595 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:19:21,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:19:21,981 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] [2022-07-12 14:19:21,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:19:22,001 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:19:22,340 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] [2022-07-12 14:19:22,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:19:22,421 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:19:22,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22 WrapperNode [2022-07-12 14:19:22,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:19:22,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:19:22,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:19:22,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:19:22,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,593 INFO L137 Inliner]: procedures = 229, calls = 1656, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3017 [2022-07-12 14:19:22,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:19:22,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:19:22,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:19:22,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:19:22,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:19:22,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:19:22,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:19:22,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:19:22,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (1/1) ... [2022-07-12 14:19:22,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:19:22,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:19:22,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 14:19:22,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 14:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:19:22,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:19:22,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 14:19:22,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 14:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 14:19:22,855 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 14:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:19:22,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:19:22,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 14:19:22,856 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 14:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:19:22,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 14:19:22,856 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 14:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:19:22,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:19:22,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 14:19:22,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 14:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-12 14:19:22,857 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-12 14:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 14:19:22,858 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 14:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-07-12 14:19:22,858 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-07-12 14:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 14:19:22,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 14:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 14:19:22,858 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 14:19:22,859 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:19:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-07-12 14:19:22,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-07-12 14:19:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:19:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:19:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:19:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 14:19:22,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 14:19:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-12 14:19:22,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-12 14:19:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-07-12 14:19:22,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-07-12 14:19:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 14:19:22,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 14:19:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 14:19:22,861 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 14:19:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 14:19:22,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 14:19:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-07-12 14:19:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-07-12 14:19:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-07-12 14:19:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-07-12 14:19:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 14:19:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 14:19:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-07-12 14:19:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-07-12 14:19:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-07-12 14:19:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-07-12 14:19:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-07-12 14:19:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-07-12 14:19:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 14:19:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 14:19:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 14:19:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 14:19:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-07-12 14:19:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-07-12 14:19:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-12 14:19:22,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-12 14:19:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-07-12 14:19:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-07-12 14:19:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 14:19:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 14:19:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 14:19:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 14:19:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:19:22,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:19:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-07-12 14:19:22,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-07-12 14:19:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:19:22,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:19:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-12 14:19:22,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-12 14:19:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 14:19:22,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 14:19:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-12 14:19:22,866 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-12 14:19:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 14:19:22,866 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 14:19:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:19:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:19:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:19:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:19:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:19:22,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:19:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:19:22,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:19:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:19:22,871 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-12 14:19:22,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-12 14:19:22,871 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-07-12 14:19:22,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-07-12 14:19:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:19:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-07-12 14:19:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-07-12 14:19:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 14:19:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 14:19:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:19:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-07-12 14:19:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-07-12 14:19:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:19:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:19:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 14:19:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 14:19:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:19:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-07-12 14:19:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-07-12 14:19:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-07-12 14:19:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-07-12 14:19:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-07-12 14:19:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-07-12 14:19:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 14:19:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 14:19:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 14:19:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 14:19:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:19:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-07-12 14:19:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-07-12 14:19:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-12 14:19:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-12 14:19:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:19:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:19:23,383 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:19:23,386 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:19:26,041 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:20:29,809 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:20:29,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:20:29,825 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:20:29,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:20:29 BoogieIcfgContainer [2022-07-12 14:20:29,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:20:29,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:20:29,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:20:29,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:20:29,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:19:20" (1/3) ... [2022-07-12 14:20:29,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bcb68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:20:29, skipping insertion in model container [2022-07-12 14:20:29,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:19:22" (2/3) ... [2022-07-12 14:20:29,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bcb68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:20:29, skipping insertion in model container [2022-07-12 14:20:29,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:20:29" (3/3) ... [2022-07-12 14:20:29,833 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-12 14:20:29,843 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:20:29,843 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:20:29,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:20:29,913 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@7f45f2ad, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b94d371 [2022-07-12 14:20:29,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:20:29,920 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) [2022-07-12 14:20:29,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-12 14:20:29,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:29,949 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] [2022-07-12 14:20:29,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:29,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1435178121, now seen corresponding path program 1 times [2022-07-12 14:20:29,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:29,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150845726] [2022-07-12 14:20:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:29,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:29,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:29,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:30,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 14:20:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:30,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:20:30,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:20:33,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:33,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:33,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150845726] [2022-07-12 14:20:33,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150845726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:33,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:33,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:20:33,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14145905] [2022-07-12 14:20:33,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:33,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:33,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:33,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:33,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:33,805 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) [2022-07-12 14:20:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:35,056 INFO L93 Difference]: Finished difference Result 3339 states and 4785 transitions. [2022-07-12 14:20:35,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:35,059 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 [2022-07-12 14:20:35,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:35,091 INFO L225 Difference]: With dead ends: 3339 [2022-07-12 14:20:35,092 INFO L226 Difference]: Without dead ends: 2187 [2022-07-12 14:20:35,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:35,106 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1543 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:35,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 7436 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 14:20:35,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-07-12 14:20:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2178. [2022-07-12 14:20:35,297 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) [2022-07-12 14:20:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3064 transitions. [2022-07-12 14:20:35,320 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3064 transitions. Word has length 158 [2022-07-12 14:20:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:35,321 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 3064 transitions. [2022-07-12 14:20:35,322 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) [2022-07-12 14:20:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3064 transitions. [2022-07-12 14:20:35,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-12 14:20:35,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:35,340 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] [2022-07-12 14:20:35,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:20:35,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:20:35,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:35,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:35,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1612545232, now seen corresponding path program 1 times [2022-07-12 14:20:35,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:35,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972454969] [2022-07-12 14:20:35,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:35,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:35,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:35,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:35,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 14:20:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:36,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:20:36,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:20:38,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:38,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:38,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972454969] [2022-07-12 14:20:38,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972454969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:38,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:38,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:20:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921918011] [2022-07-12 14:20:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:38,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:38,736 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) [2022-07-12 14:20:39,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:39,774 INFO L93 Difference]: Finished difference Result 6535 states and 9203 transitions. [2022-07-12 14:20:39,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:39,778 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 [2022-07-12 14:20:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:39,806 INFO L225 Difference]: With dead ends: 6535 [2022-07-12 14:20:39,806 INFO L226 Difference]: Without dead ends: 4366 [2022-07-12 14:20:39,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:39,818 INFO L413 NwaCegarLoop]: 1935 mSDtfsCounter, 1512 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 7313 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:39,818 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] [2022-07-12 14:20:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-07-12 14:20:39,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4351. [2022-07-12 14:20:39,961 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) [2022-07-12 14:20:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6117 transitions. [2022-07-12 14:20:39,995 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6117 transitions. Word has length 153 [2022-07-12 14:20:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:39,996 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6117 transitions. [2022-07-12 14:20:39,996 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) [2022-07-12 14:20:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6117 transitions. [2022-07-12 14:20:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-12 14:20:40,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:40,004 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] [2022-07-12 14:20:40,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 14:20:40,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:20:40,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:40,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:40,220 INFO L85 PathProgramCache]: Analyzing trace with hash 907320420, now seen corresponding path program 1 times [2022-07-12 14:20:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:40,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470075436] [2022-07-12 14:20:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:40,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:40,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:40,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 14:20:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:20:41,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:20:43,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:43,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:43,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470075436] [2022-07-12 14:20:43,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470075436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:43,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:43,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:20:43,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816077411] [2022-07-12 14:20:43,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:43,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:43,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:43,083 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) [2022-07-12 14:20:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:44,240 INFO L93 Difference]: Finished difference Result 13068 states and 18388 transitions. [2022-07-12 14:20:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:44,242 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 [2022-07-12 14:20:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:44,285 INFO L225 Difference]: With dead ends: 13068 [2022-07-12 14:20:44,286 INFO L226 Difference]: Without dead ends: 8726 [2022-07-12 14:20:44,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:44,306 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 [2022-07-12 14:20:44,307 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] [2022-07-12 14:20:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-07-12 14:20:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8659. [2022-07-12 14:20:44,532 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) [2022-07-12 14:20:44,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8659 states to 8659 states and 12181 transitions. [2022-07-12 14:20:44,567 INFO L78 Accepts]: Start accepts. Automaton has 8659 states and 12181 transitions. Word has length 152 [2022-07-12 14:20:44,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:44,569 INFO L495 AbstractCegarLoop]: Abstraction has 8659 states and 12181 transitions. [2022-07-12 14:20:44,571 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) [2022-07-12 14:20:44,571 INFO L276 IsEmpty]: Start isEmpty. Operand 8659 states and 12181 transitions. [2022-07-12 14:20:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-12 14:20:44,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:44,579 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] [2022-07-12 14:20:44,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:20:44,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:20:44,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:44,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1809736159, now seen corresponding path program 1 times [2022-07-12 14:20:44,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:44,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532921440] [2022-07-12 14:20:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:44,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:44,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:44,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:44,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 14:20:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:45,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:20:45,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:20:47,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:20:47,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:47,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532921440] [2022-07-12 14:20:47,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532921440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:47,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:47,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:20:47,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51502981] [2022-07-12 14:20:47,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:47,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:47,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:47,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:47,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:47,758 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) [2022-07-12 14:20:48,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:48,861 INFO L93 Difference]: Finished difference Result 25850 states and 36374 transitions. [2022-07-12 14:20:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:48,862 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 [2022-07-12 14:20:48,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:48,958 INFO L225 Difference]: With dead ends: 25850 [2022-07-12 14:20:48,959 INFO L226 Difference]: Without dead ends: 17200 [2022-07-12 14:20:48,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:20:48,999 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 1514 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:48,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 6911 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:20:49,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17200 states. [2022-07-12 14:20:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17200 to 17128. [2022-07-12 14:20:49,573 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) [2022-07-12 14:20:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17128 states to 17128 states and 24076 transitions. [2022-07-12 14:20:49,655 INFO L78 Accepts]: Start accepts. Automaton has 17128 states and 24076 transitions. Word has length 154 [2022-07-12 14:20:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:49,656 INFO L495 AbstractCegarLoop]: Abstraction has 17128 states and 24076 transitions. [2022-07-12 14:20:49,656 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) [2022-07-12 14:20:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 17128 states and 24076 transitions. [2022-07-12 14:20:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 14:20:49,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:49,670 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] [2022-07-12 14:20:49,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:20:49,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:20:49,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:49,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash 111546844, now seen corresponding path program 1 times [2022-07-12 14:20:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:49,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792609695] [2022-07-12 14:20:49,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:49,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:49,902 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:49,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 14:20:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:50,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:20:50,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-12 14:20:53,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:20:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-12 14:20:55,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792609695] [2022-07-12 14:20:55,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792609695] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 14:20:55,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 14:20:55,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-12 14:20:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264855674] [2022-07-12 14:20:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:55,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:20:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:20:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 14:20:55,525 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) [2022-07-12 14:20:57,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:20:59,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:21:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:34,954 INFO L93 Difference]: Finished difference Result 46150 states and 65399 transitions. [2022-07-12 14:21:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 14:21:34,955 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 [2022-07-12 14:21:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:35,182 INFO L225 Difference]: With dead ends: 46150 [2022-07-12 14:21:35,182 INFO L226 Difference]: Without dead ends: 29031 [2022-07-12 14:21:35,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-12 14:21:35,237 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 2406 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 330 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s 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, 35.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:35,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 13667 Invalid, 2398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [330 Valid, 2066 Invalid, 2 Unknown, 0 Unchecked, 35.5s Time] [2022-07-12 14:21:35,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29031 states. [2022-07-12 14:21:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29031 to 25498. [2022-07-12 14:21:35,982 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) [2022-07-12 14:21:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25498 states to 25498 states and 35849 transitions. [2022-07-12 14:21:36,086 INFO L78 Accepts]: Start accepts. Automaton has 25498 states and 35849 transitions. Word has length 163 [2022-07-12 14:21:36,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:36,087 INFO L495 AbstractCegarLoop]: Abstraction has 25498 states and 35849 transitions. [2022-07-12 14:21:36,087 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) [2022-07-12 14:21:36,087 INFO L276 IsEmpty]: Start isEmpty. Operand 25498 states and 35849 transitions. [2022-07-12 14:21:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-12 14:21:36,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:36,099 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] [2022-07-12 14:21:36,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:36,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:36,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:36,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:36,316 INFO L85 PathProgramCache]: Analyzing trace with hash -25816105, now seen corresponding path program 1 times [2022-07-12 14:21:36,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:36,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032417238] [2022-07-12 14:21:36,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:36,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:36,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:36,319 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:36,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 14:21:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:37,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:21:37,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:40,267 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:21:40,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:21:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:21:42,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:42,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032417238] [2022-07-12 14:21:42,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032417238] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:21:42,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:21:42,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-12 14:21:42,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969751371] [2022-07-12 14:21:42,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:21:42,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:21:42,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:21:42,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:21:42,317 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) [2022-07-12 14:21:44,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:21:46,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:21:48,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:07,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:23:07,161 INFO L93 Difference]: Finished difference Result 58644 states and 82941 transitions. [2022-07-12 14:23:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-12 14:23:07,162 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 [2022-07-12 14:23:07,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:23:07,323 INFO L225 Difference]: With dead ends: 58644 [2022-07-12 14:23:07,324 INFO L226 Difference]: Without dead ends: 33155 [2022-07-12 14:23:07,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 14:23:07,418 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 5706 mSDsluCounter, 20048 mSDsCounter, 0 mSdLazyCounter, 4944 mSolverCounterSat, 1352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.2s 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, 77.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:23:07,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5833 Valid, 23782 Invalid, 6299 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1352 Valid, 4944 Invalid, 3 Unknown, 0 Unchecked, 77.3s Time] [2022-07-12 14:23:07,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33155 states. [2022-07-12 14:23:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33155 to 29604. [2022-07-12 14:23:08,580 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) [2022-07-12 14:23:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29604 states to 29604 states and 41606 transitions. [2022-07-12 14:23:08,799 INFO L78 Accepts]: Start accepts. Automaton has 29604 states and 41606 transitions. Word has length 169 [2022-07-12 14:23:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:23:08,800 INFO L495 AbstractCegarLoop]: Abstraction has 29604 states and 41606 transitions. [2022-07-12 14:23:08,800 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) [2022-07-12 14:23:08,810 INFO L276 IsEmpty]: Start isEmpty. Operand 29604 states and 41606 transitions. [2022-07-12 14:23:09,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-12 14:23:09,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:23:09,018 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] [2022-07-12 14:23:09,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:23:09,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:23:09,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:23:09,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:23:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash -3469995, now seen corresponding path program 1 times [2022-07-12 14:23:09,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:23:09,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419313147] [2022-07-12 14:23:09,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:23:09,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:23:09,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:23:09,223 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:23:09,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 14:23:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:10,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:23:10,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:23:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:23:12,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:23:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 14:23:14,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:23:14,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419313147] [2022-07-12 14:23:14,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419313147] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:23:14,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:23:14,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-12 14:23:14,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913554358] [2022-07-12 14:23:14,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:23:14,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:23:14,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:23:14,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:23:14,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:23:14,911 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) [2022-07-12 14:23:17,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:19,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:21,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:23,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []