./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:22:23,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:22:23,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:22:23,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:22:23,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:22:23,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:22:23,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:22:23,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:22:23,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:22:23,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:22:23,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:22:23,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:22:23,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:22:23,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:22:23,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:22:23,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:22:23,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:22:23,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:22:23,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:22:23,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:22:23,660 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:22:23,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:22:23,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:22:23,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:22:23,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:22:23,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:22:23,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:22:23,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:22:23,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:22:23,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:22:23,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:22:23,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:22:23,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:22:23,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:22:23,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:22:23,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:22:23,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:22:23,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:22:23,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:22:23,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:22:23,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:22:23,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:22:23,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:22:23,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:22:23,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:22:23,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:22:23,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:22:23,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:22:23,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:22:23,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:22:23,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:22:23,697 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:22:23,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:22:23,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:22:23,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:22:23,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:22:23,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:22:23,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:22:23,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:22:23,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:22:23,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:22:23,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:22:23,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:22:23,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:22:23,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:22:23,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:22:23,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:22:23,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:22:23,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:22:23,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:22:23,700 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:22:23,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:22:23,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:22:23,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-23 00:22:23,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:22:23,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:22:23,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:22:23,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:22:23,959 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:22:23,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:22:24,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ecb6c899/5a2016a3e5ad4e89aa42532ad6ffe5dc/FLAG2b5ef28d0 [2022-07-23 00:22:24,622 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:22:24,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:22:24,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ecb6c899/5a2016a3e5ad4e89aa42532ad6ffe5dc/FLAG2b5ef28d0 [2022-07-23 00:22:25,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ecb6c899/5a2016a3e5ad4e89aa42532ad6ffe5dc [2022-07-23 00:22:25,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:22:25,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:22:25,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:22:25,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:22:25,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:22:25,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:22:25" (1/1) ... [2022-07-23 00:22:25,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290df6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:25, skipping insertion in model container [2022-07-23 00:22:25,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:22:25" (1/1) ... [2022-07-23 00:22:25,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:22:25,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:22:26,945 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-23 00:22:26,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:22:27,021 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:22:27,203 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018] 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:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 00:22:27,208 INFO L158 Benchmark]: Toolchain (without parser) took 2166.27ms. Allocated memory was 113.2MB in the beginning and 222.3MB in the end (delta: 109.1MB). Free memory was 69.4MB in the beginning and 161.5MB in the end (delta: -92.1MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2022-07-23 00:22:27,208 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 70.0MB in the beginning and 70.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 00:22:27,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2164.67ms. Allocated memory was 113.2MB in the beginning and 222.3MB in the end (delta: 109.1MB). Free memory was 69.1MB in the beginning and 161.5MB in the end (delta: -92.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2022-07-23 00:22:27,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 70.0MB in the beginning and 70.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2164.67ms. Allocated memory was 113.2MB in the beginning and 222.3MB in the end (delta: 109.1MB). Free memory was 69.1MB in the beginning and 161.5MB in the end (delta: -92.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018]: 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:22:28,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:22:28,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:22:28,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:22:28,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:22:28,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:22:28,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:22:28,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:22:28,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:22:28,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:22:28,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:22:28,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:22:28,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:22:28,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:22:28,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:22:28,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:22:28,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:22:28,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:22:28,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:22:28,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:22:28,807 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:22:28,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:22:28,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:22:28,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:22:28,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:22:28,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:22:28,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:22:28,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:22:28,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:22:28,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:22:28,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:22:28,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:22:28,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:22:28,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:22:28,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:22:28,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:22:28,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:22:28,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:22:28,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:22:28,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:22:28,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:22:28,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:22:28,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 00:22:28,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:22:28,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:22:28,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:22:28,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:22:28,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:22:28,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:22:28,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:22:28,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:22:28,853 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:22:28,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:22:28,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:22:28,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:22:28,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:22:28,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:22:28,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 00:22:28,854 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 00:22:28,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 00:22:28,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:22:28,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:22:28,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:22:28,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:22:28,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:22:28,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:22:28,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:22:28,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:22:28,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:22:28,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:22:28,856 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 00:22:28,857 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 00:22:28,857 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:22:28,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:22:28,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:22:28,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 00:22:28,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-23 00:22:29,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:22:29,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:22:29,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:22:29,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:22:29,297 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:22:29,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:22:29,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b7806f2/3c3b5fe5eb444901825ce2e4d756e718/FLAGd2671a36e [2022-07-23 00:22:29,981 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:22:29,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:22:30,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b7806f2/3c3b5fe5eb444901825ce2e4d756e718/FLAGd2671a36e [2022-07-23 00:22:30,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b7806f2/3c3b5fe5eb444901825ce2e4d756e718 [2022-07-23 00:22:30,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:22:30,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:22:30,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:22:30,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:22:30,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:22:30,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:22:30" (1/1) ... [2022-07-23 00:22:30,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5711ea78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:30, skipping insertion in model container [2022-07-23 00:22:30,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:22:30" (1/1) ... [2022-07-23 00:22:30,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:22:30,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:22:32,033 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-23 00:22:32,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:22:32,113 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 00:22:32,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:22:32,372 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-23 00:22:32,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:22:32,395 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:22:32,628 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-23 00:22:32,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:22:32,912 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:22:32,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32 WrapperNode [2022-07-23 00:22:32,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:22:32,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:22:32,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:22:32,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:22:32,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,157 INFO L137 Inliner]: procedures = 396, calls = 2295, calls flagged for inlining = 189, calls inlined = 143, statements flattened = 4429 [2022-07-23 00:22:33,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:22:33,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:22:33,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:22:33,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:22:33,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:22:33,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:22:33,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:22:33,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:22:33,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (1/1) ... [2022-07-23 00:22:33,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:22:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:22:33,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 00:22:33,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 00:22:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-23 00:22:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-23 00:22:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-23 00:22:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-23 00:22:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-23 00:22:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-23 00:22:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 00:22:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 00:22:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-07-23 00:22:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-07-23 00:22:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:22:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:22:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-07-23 00:22:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-07-23 00:22:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-07-23 00:22:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-07-23 00:22:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 00:22:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 00:22:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:22:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:22:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-07-23 00:22:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-07-23 00:22:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-07-23 00:22:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-07-23 00:22:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-23 00:22:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-23 00:22:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 00:22:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 00:22:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-23 00:22:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-23 00:22:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-07-23 00:22:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-07-23 00:22:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:22:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:22:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 00:22:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 00:22:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unmap_page_2 [2022-07-23 00:22:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unmap_page_2 [2022-07-23 00:22:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-23 00:22:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-23 00:22:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 00:22:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 00:22:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:22:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-23 00:22:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-23 00:22:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-07-23 00:22:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-07-23 00:22:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-23 00:22:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-23 00:22:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 00:22:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 00:22:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 00:22:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 00:22:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 00:22:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-07-23 00:22:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-07-23 00:22:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-23 00:22:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-23 00:22:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-23 00:22:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-23 00:22:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-07-23 00:22:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-07-23 00:22:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_macaddr [2022-07-23 00:22:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_macaddr [2022-07-23 00:22:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 00:22:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 00:22:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 00:22:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 00:22:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 00:22:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 00:22:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-07-23 00:22:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-07-23 00:22:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:22:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:22:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-23 00:22:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-23 00:22:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-23 00:22:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-23 00:22:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_features [2022-07-23 00:22:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_features [2022-07-23 00:22:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 00:22:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 00:22:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-07-23 00:22:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-07-23 00:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-23 00:22:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-23 00:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-07-23 00:22:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-07-23 00:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-07-23 00:22:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-07-23 00:22:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-23 00:22:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-23 00:22:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:22:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:22:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:22:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2022-07-23 00:22:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2022-07-23 00:22:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-07-23 00:22:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-07-23 00:22:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:22:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 00:22:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 00:22:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:22:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-23 00:22:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-23 00:22:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 00:22:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 00:22:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 00:22:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-07-23 00:22:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-07-23 00:22:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-23 00:22:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-23 00:22:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 00:22:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 00:22:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-23 00:22:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-23 00:22:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 00:22:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 00:22:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 00:22:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-07-23 00:22:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-07-23 00:22:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:22:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:22:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure jme_change_mtu [2022-07-23 00:22:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_change_mtu [2022-07-23 00:22:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-23 00:22:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-23 00:22:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-23 00:22:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-23 00:22:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 00:22:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-23 00:22:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-23 00:22:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-07-23 00:22:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-07-23 00:22:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-07-23 00:22:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-07-23 00:22:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 00:22:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 00:22:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 00:22:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-07-23 00:22:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-07-23 00:22:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 00:22:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-07-23 00:22:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:22:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure jme_ioctl [2022-07-23 00:22:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_ioctl [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-07-23 00:22:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-07-23 00:22:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-07-23 00:22:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-07-23 00:22:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-07-23 00:22:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-07-23 00:22:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 00:22:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 00:22:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable_nosync [2022-07-23 00:22:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable_nosync [2022-07-23 00:22:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:22:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:22:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-07-23 00:22:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-07-23 00:22:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-07-23 00:22:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-07-23 00:22:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-07-23 00:22:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-07-23 00:22:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-23 00:22:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-23 00:22:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-23 00:22:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-23 00:22:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:22:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:22:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:22:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:22:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 00:22:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 00:22:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-07-23 00:22:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-07-23 00:22:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 00:22:33,545 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 00:22:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:22:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 00:22:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-07-23 00:22:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-07-23 00:22:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-07-23 00:22:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 00:22:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 00:22:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 00:22:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:22:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-07-23 00:22:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-07-23 00:22:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-23 00:22:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-23 00:22:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 00:22:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 00:22:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-07-23 00:22:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-07-23 00:22:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-23 00:22:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-23 00:22:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-07-23 00:22:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-07-23 00:22:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure jme_vlan_rx_register [2022-07-23 00:22:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_vlan_rx_register [2022-07-23 00:22:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-07-23 00:22:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-07-23 00:22:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 00:22:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 00:22:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 00:22:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 00:22:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-07-23 00:22:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-07-23 00:22:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-07-23 00:22:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-07-23 00:22:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-07-23 00:22:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-07-23 00:22:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:22:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:22:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-23 00:22:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-23 00:22:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-07-23 00:22:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-07-23 00:22:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:22:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:22:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 00:22:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-07-23 00:22:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-07-23 00:22:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 00:22:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 00:22:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 00:22:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-07-23 00:22:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-07-23 00:22:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-07-23 00:22:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-07-23 00:22:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:22:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:22:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-23 00:22:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-23 00:22:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-07-23 00:22:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-07-23 00:22:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:22:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:22:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-07-23 00:22:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-07-23 00:22:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-23 00:22:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-23 00:22:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-23 00:22:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-23 00:22:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-07-23 00:22:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-07-23 00:22:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-07-23 00:22:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-07-23 00:22:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-07-23 00:22:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-07-23 00:22:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-07-23 00:22:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-07-23 00:22:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fix_features [2022-07-23 00:22:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fix_features [2022-07-23 00:22:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-07-23 00:22:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-07-23 00:22:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-07-23 00:22:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-07-23 00:22:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-23 00:22:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-23 00:22:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-23 00:22:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-23 00:22:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_map_page_1 [2022-07-23 00:22:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_map_page_1 [2022-07-23 00:22:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-07-23 00:22:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-07-23 00:22:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-23 00:22:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-23 00:22:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-07-23 00:22:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-07-23 00:22:34,213 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:22:34,217 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:22:40,798 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:23:16,267 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:23:16,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:23:16,281 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-23 00:23:16,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:23:16 BoogieIcfgContainer [2022-07-23 00:23:16,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:23:16,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:23:16,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:23:16,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:23:16,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:22:30" (1/3) ... [2022-07-23 00:23:16,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3608b610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:23:16, skipping insertion in model container [2022-07-23 00:23:16,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:22:32" (2/3) ... [2022-07-23 00:23:16,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3608b610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:23:16, skipping insertion in model container [2022-07-23 00:23:16,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:23:16" (3/3) ... [2022-07-23 00:23:16,290 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:23:16,299 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:23:16,300 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:23:16,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:23:16,361 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@639f841b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1955d390 [2022-07-23 00:23:16,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:23:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 1938 states, 1269 states have (on average 1.3152088258471237) internal successors, (1669), 1316 states have internal predecessors, (1669), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) [2022-07-23 00:23:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-23 00:23:16,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:16,386 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:16,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:16,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:16,390 INFO L85 PathProgramCache]: Analyzing trace with hash 914134315, now seen corresponding path program 1 times [2022-07-23 00:23:16,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:16,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524379498] [2022-07-23 00:23:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:16,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:16,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:16,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:16,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 00:23:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:17,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 00:23:17,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-23 00:23:18,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:18,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:18,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524379498] [2022-07-23 00:23:18,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524379498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:18,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:18,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:23:18,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795264082] [2022-07-23 00:23:18,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:18,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:23:18,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:18,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:23:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:23:18,163 INFO L87 Difference]: Start difference. First operand has 1938 states, 1269 states have (on average 1.3152088258471237) internal successors, (1669), 1316 states have internal predecessors, (1669), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-23 00:23:19,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:19,365 INFO L93 Difference]: Finished difference Result 3865 states and 5546 transitions. [2022-07-23 00:23:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:23:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 232 [2022-07-23 00:23:19,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:19,385 INFO L225 Difference]: With dead ends: 3865 [2022-07-23 00:23:19,386 INFO L226 Difference]: Without dead ends: 1911 [2022-07-23 00:23:19,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:23:19,397 INFO L413 NwaCegarLoop]: 2716 mSDtfsCounter, 6 mSDsluCounter, 10844 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:19,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13560 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:23:19,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2022-07-23 00:23:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1911. [2022-07-23 00:23:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1250 states have (on average 1.3064) internal successors, (1633), 1286 states have internal predecessors, (1633), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-07-23 00:23:19,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2702 transitions. [2022-07-23 00:23:19,502 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2702 transitions. Word has length 232 [2022-07-23 00:23:19,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:19,504 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2702 transitions. [2022-07-23 00:23:19,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-23 00:23:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2702 transitions. [2022-07-23 00:23:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-23 00:23:19,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:19,508 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:19,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:19,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:19,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:19,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:19,732 INFO L85 PathProgramCache]: Analyzing trace with hash -772722983, now seen corresponding path program 1 times [2022-07-23 00:23:19,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:19,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315964616] [2022-07-23 00:23:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:19,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:19,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:19,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:19,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 00:23:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:21,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 00:23:21,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-23 00:23:21,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:23:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-23 00:23:23,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:23,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315964616] [2022-07-23 00:23:23,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315964616] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:23:23,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:23:23,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-23 00:23:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707181415] [2022-07-23 00:23:23,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:23:23,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:23:23,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:23:23,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:23:23,089 INFO L87 Difference]: Start difference. First operand 1911 states and 2702 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-23 00:23:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:24,001 INFO L93 Difference]: Finished difference Result 3804 states and 5381 transitions. [2022-07-23 00:23:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:23:24,002 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 237 [2022-07-23 00:23:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:24,015 INFO L225 Difference]: With dead ends: 3804 [2022-07-23 00:23:24,015 INFO L226 Difference]: Without dead ends: 1912 [2022-07-23 00:23:24,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:23:24,025 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 9 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16131 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:24,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16131 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:23:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-07-23 00:23:24,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2022-07-23 00:23:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1251 states have (on average 1.3061550759392486) internal successors, (1634), 1287 states have internal predecessors, (1634), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-07-23 00:23:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2703 transitions. [2022-07-23 00:23:24,095 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2703 transitions. Word has length 237 [2022-07-23 00:23:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:24,098 INFO L495 AbstractCegarLoop]: Abstraction has 1912 states and 2703 transitions. [2022-07-23 00:23:24,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-23 00:23:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2703 transitions. [2022-07-23 00:23:24,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-23 00:23:24,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:24,101 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:24,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:24,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:24,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:24,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:24,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1055728149, now seen corresponding path program 2 times [2022-07-23 00:23:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:24,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160592101] [2022-07-23 00:23:24,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:23:24,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:24,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:24,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:24,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 00:23:25,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:23:25,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:23:25,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:23:25,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-07-23 00:23:25,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:25,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:25,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160592101] [2022-07-23 00:23:25,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160592101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:25,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:25,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:23:25,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204843105] [2022-07-23 00:23:25,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:25,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:23:25,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:23:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:25,750 INFO L87 Difference]: Start difference. First operand 1912 states and 2703 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-23 00:23:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:26,050 INFO L93 Difference]: Finished difference Result 5629 states and 7962 transitions. [2022-07-23 00:23:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:23:26,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 242 [2022-07-23 00:23:26,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:26,071 INFO L225 Difference]: With dead ends: 5629 [2022-07-23 00:23:26,071 INFO L226 Difference]: Without dead ends: 3755 [2022-07-23 00:23:26,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:26,081 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 2605 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:26,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5905 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 00:23:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-23 00:23:26,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3752. [2022-07-23 00:23:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 2459 states have (on average 1.3094753965026433) internal successors, (3220), 2529 states have internal predecessors, (3220), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-23 00:23:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5307 transitions. [2022-07-23 00:23:26,201 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5307 transitions. Word has length 242 [2022-07-23 00:23:26,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:26,203 INFO L495 AbstractCegarLoop]: Abstraction has 3752 states and 5307 transitions. [2022-07-23 00:23:26,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-23 00:23:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5307 transitions. [2022-07-23 00:23:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-23 00:23:26,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:26,209 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:26,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:26,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:26,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:26,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1522031199, now seen corresponding path program 1 times [2022-07-23 00:23:26,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:26,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387020143] [2022-07-23 00:23:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:26,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:26,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:26,445 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:26,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 00:23:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:27,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:23:27,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-07-23 00:23:28,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:23:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-07-23 00:23:30,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:30,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387020143] [2022-07-23 00:23:30,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387020143] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:23:30,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:23:30,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-23 00:23:30,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46604121] [2022-07-23 00:23:30,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:23:30,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 00:23:30,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:30,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 00:23:30,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:23:30,277 INFO L87 Difference]: Start difference. First operand 3752 states and 5307 transitions. Second operand has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:23:31,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:31,497 INFO L93 Difference]: Finished difference Result 7489 states and 10595 transitions. [2022-07-23 00:23:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 00:23:31,499 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 262 [2022-07-23 00:23:31,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:31,519 INFO L225 Difference]: With dead ends: 7489 [2022-07-23 00:23:31,519 INFO L226 Difference]: Without dead ends: 3754 [2022-07-23 00:23:31,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:23:31,536 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 10 mSDsluCounter, 16127 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 18820 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:31,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 00:23:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-07-23 00:23:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2022-07-23 00:23:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2461 states have (on average 1.3092238927265338) internal successors, (3222), 2531 states have internal predecessors, (3222), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-23 00:23:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5309 transitions. [2022-07-23 00:23:31,632 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5309 transitions. Word has length 262 [2022-07-23 00:23:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:31,632 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5309 transitions. [2022-07-23 00:23:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:23:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5309 transitions. [2022-07-23 00:23:31,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-23 00:23:31,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:31,638 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:31,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:31,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:31,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:31,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:31,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1092106703, now seen corresponding path program 2 times [2022-07-23 00:23:31,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:31,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745290646] [2022-07-23 00:23:31,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:23:31,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:31,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:31,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:31,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 00:23:42,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 00:23:42,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:23:42,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:23:42,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-23 00:23:44,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:44,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:44,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745290646] [2022-07-23 00:23:44,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745290646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:44,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:44,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:23:44,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993583391] [2022-07-23 00:23:44,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:44,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:23:44,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:44,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:23:44,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:44,152 INFO L87 Difference]: Start difference. First operand 3754 states and 5309 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-23 00:23:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:44,313 INFO L93 Difference]: Finished difference Result 3756 states and 5310 transitions. [2022-07-23 00:23:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:23:44,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 267 [2022-07-23 00:23:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:44,329 INFO L225 Difference]: With dead ends: 3756 [2022-07-23 00:23:44,330 INFO L226 Difference]: Without dead ends: 3753 [2022-07-23 00:23:44,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:44,333 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2641 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:44,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 2698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:23:44,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-23 00:23:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-23 00:23:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2461 states have (on average 1.3088175538399025) internal successors, (3221), 2530 states have internal predecessors, (3221), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-23 00:23:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5307 transitions. [2022-07-23 00:23:44,492 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5307 transitions. Word has length 267 [2022-07-23 00:23:44,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:44,492 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5307 transitions. [2022-07-23 00:23:44,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-23 00:23:44,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5307 transitions. [2022-07-23 00:23:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-23 00:23:44,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:44,497 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:44,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:44,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:44,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:44,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:44,724 INFO L85 PathProgramCache]: Analyzing trace with hash -505287589, now seen corresponding path program 1 times [2022-07-23 00:23:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:44,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938121130] [2022-07-23 00:23:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:44,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:44,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:44,727 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:44,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 00:23:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:46,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 00:23:46,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 236 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-07-23 00:23:46,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:23:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-23 00:23:49,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:49,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938121130] [2022-07-23 00:23:49,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938121130] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:23:49,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:23:49,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-23 00:23:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100891252] [2022-07-23 00:23:49,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:23:49,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 00:23:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 00:23:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:23:49,411 INFO L87 Difference]: Start difference. First operand 3753 states and 5307 transitions. Second operand has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:23:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:51,386 INFO L93 Difference]: Finished difference Result 7491 states and 10595 transitions. [2022-07-23 00:23:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:23:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 268 [2022-07-23 00:23:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:51,404 INFO L225 Difference]: With dead ends: 7491 [2022-07-23 00:23:51,405 INFO L226 Difference]: Without dead ends: 3755 [2022-07-23 00:23:51,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:23:51,417 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 11 mSDsluCounter, 21488 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24179 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:51,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24179 Invalid, 147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-23 00:23:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-23 00:23:51,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3755. [2022-07-23 00:23:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 2463 states have (on average 1.3085667884693464) internal successors, (3223), 2532 states have internal predecessors, (3223), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-23 00:23:51,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5309 transitions. [2022-07-23 00:23:51,587 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5309 transitions. Word has length 268 [2022-07-23 00:23:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:51,588 INFO L495 AbstractCegarLoop]: Abstraction has 3755 states and 5309 transitions. [2022-07-23 00:23:51,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:23:51,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5309 transitions. [2022-07-23 00:23:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-23 00:23:51,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:51,593 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:51,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:51,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:51,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:51,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash -328377847, now seen corresponding path program 2 times [2022-07-23 00:23:51,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:51,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29934811] [2022-07-23 00:23:51,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:23:51,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:51,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:51,818 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:51,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 00:24:03,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 00:24:03,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:24:04,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:24:04,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-07-23 00:24:05,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:05,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:05,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29934811] [2022-07-23 00:24:05,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29934811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:05,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:05,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:24:05,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438156545] [2022-07-23 00:24:05,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:05,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:24:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:24:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:05,658 INFO L87 Difference]: Start difference. First operand 3755 states and 5309 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-23 00:24:05,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:05,953 INFO L93 Difference]: Finished difference Result 11173 states and 15823 transitions. [2022-07-23 00:24:05,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:24:05,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 273 [2022-07-23 00:24:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:06,012 INFO L225 Difference]: With dead ends: 11173 [2022-07-23 00:24:06,012 INFO L226 Difference]: Without dead ends: 7450 [2022-07-23 00:24:06,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:06,033 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 2628 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:06,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 5949 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 00:24:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7450 states. [2022-07-23 00:24:06,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7445. [2022-07-23 00:24:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 4886 states have (on average 1.3100695865738845) internal successors, (6401), 5023 states have internal predecessors, (6401), 2067 states have call successors, (2067), 493 states have call predecessors, (2067), 491 states have return successors, (2070), 2024 states have call predecessors, (2070), 2064 states have call successors, (2070) [2022-07-23 00:24:06,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10538 transitions. [2022-07-23 00:24:06,525 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10538 transitions. Word has length 273 [2022-07-23 00:24:06,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:06,525 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10538 transitions. [2022-07-23 00:24:06,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-23 00:24:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10538 transitions. [2022-07-23 00:24:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-07-23 00:24:06,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:06,553 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:06,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:06,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:06,774 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:06,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:06,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1796727306, now seen corresponding path program 1 times [2022-07-23 00:24:06,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:06,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285133341] [2022-07-23 00:24:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:06,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:06,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:06,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:06,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 00:24:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:09,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:24:09,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-07-23 00:24:09,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:09,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285133341] [2022-07-23 00:24:09,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285133341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:09,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:09,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:24:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470150880] [2022-07-23 00:24:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:09,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:24:09,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:09,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:24:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:09,804 INFO L87 Difference]: Start difference. First operand 7445 states and 10538 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-23 00:24:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:10,966 INFO L93 Difference]: Finished difference Result 19843 states and 28038 transitions. [2022-07-23 00:24:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:24:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 476 [2022-07-23 00:24:10,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:11,018 INFO L225 Difference]: With dead ends: 19843 [2022-07-23 00:24:11,019 INFO L226 Difference]: Without dead ends: 12436 [2022-07-23 00:24:11,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:11,055 INFO L413 NwaCegarLoop]: 3053 mSDtfsCounter, 1838 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:11,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 5584 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 00:24:11,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12436 states. [2022-07-23 00:24:11,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12436 to 12403. [2022-07-23 00:24:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12403 states, 8154 states have (on average 1.3132205052734853) internal successors, (10708), 8395 states have internal predecessors, (10708), 3403 states have call successors, (3403), 847 states have call predecessors, (3403), 845 states have return successors, (3406), 3324 states have call predecessors, (3406), 3400 states have call successors, (3406) [2022-07-23 00:24:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 17517 transitions. [2022-07-23 00:24:11,528 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 17517 transitions. Word has length 476 [2022-07-23 00:24:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:11,530 INFO L495 AbstractCegarLoop]: Abstraction has 12403 states and 17517 transitions. [2022-07-23 00:24:11,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-23 00:24:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 17517 transitions. [2022-07-23 00:24:11,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2022-07-23 00:24:11,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:11,553 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:11,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:11,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:11,772 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:11,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:11,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1792837774, now seen corresponding path program 1 times [2022-07-23 00:24:11,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:11,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796093354] [2022-07-23 00:24:11,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:11,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:11,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:11,784 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:11,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 00:24:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:15,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 4881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:24:15,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12457 trivial. 0 not checked. [2022-07-23 00:24:15,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:15,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:15,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796093354] [2022-07-23 00:24:15,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796093354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:15,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:15,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:24:15,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131588717] [2022-07-23 00:24:15,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:15,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:24:15,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:15,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:24:15,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:15,771 INFO L87 Difference]: Start difference. First operand 12403 states and 17517 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-23 00:24:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:16,930 INFO L93 Difference]: Finished difference Result 35147 states and 49473 transitions. [2022-07-23 00:24:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:24:16,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 1258 [2022-07-23 00:24:16,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:17,113 INFO L225 Difference]: With dead ends: 35147 [2022-07-23 00:24:17,113 INFO L226 Difference]: Without dead ends: 22782 [2022-07-23 00:24:17,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:17,176 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 2411 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:17,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 5938 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:24:17,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22782 states. [2022-07-23 00:24:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22782 to 22769. [2022-07-23 00:24:17,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22769 states, 14930 states have (on average 1.302746148693905) internal successors, (19450), 15383 states have internal predecessors, (19450), 6265 states have call successors, (6265), 1575 states have call predecessors, (6265), 1573 states have return successors, (6274), 6110 states have call predecessors, (6274), 6262 states have call successors, (6274) [2022-07-23 00:24:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22769 states to 22769 states and 31989 transitions. [2022-07-23 00:24:17,966 INFO L78 Accepts]: Start accepts. Automaton has 22769 states and 31989 transitions. Word has length 1258 [2022-07-23 00:24:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:17,967 INFO L495 AbstractCegarLoop]: Abstraction has 22769 states and 31989 transitions. [2022-07-23 00:24:17,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-23 00:24:17,967 INFO L276 IsEmpty]: Start isEmpty. Operand 22769 states and 31989 transitions. [2022-07-23 00:24:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2022-07-23 00:24:17,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:17,993 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:18,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:18,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:18,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash -346518197, now seen corresponding path program 1 times [2022-07-23 00:24:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:18,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020281162] [2022-07-23 00:24:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:18,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:18,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:18,212 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:18,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 00:24:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:22,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 5308 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:24:22,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 12891 trivial. 0 not checked. [2022-07-23 00:24:24,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:24,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:24,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020281162] [2022-07-23 00:24:24,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020281162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:24,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:24,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:24:24,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425138287] [2022-07-23 00:24:24,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:24,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:24:24,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:24:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:24,351 INFO L87 Difference]: Start difference. First operand 22769 states and 31989 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-07-23 00:24:25,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:25,799 INFO L93 Difference]: Finished difference Result 56195 states and 79053 transitions. [2022-07-23 00:24:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:24:25,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) Word has length 1402 [2022-07-23 00:24:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:25,994 INFO L225 Difference]: With dead ends: 56195 [2022-07-23 00:24:25,995 INFO L226 Difference]: Without dead ends: 33474 [2022-07-23 00:24:26,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1401 GetRequests, 1400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:26,050 INFO L413 NwaCegarLoop]: 5042 mSDtfsCounter, 2405 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 7651 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:26,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 7651 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 00:24:26,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33474 states. [2022-07-23 00:24:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33474 to 33461. [2022-07-23 00:24:27,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33461 states, 22036 states have (on average 1.3015973860954801) internal successors, (28682), 22701 states have internal predecessors, (28682), 9125 states have call successors, (9125), 2301 states have call predecessors, (9125), 2299 states have return successors, (9140), 8894 states have call predecessors, (9140), 9122 states have call successors, (9140) [2022-07-23 00:24:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 46947 transitions. [2022-07-23 00:24:27,180 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 46947 transitions. Word has length 1402 [2022-07-23 00:24:27,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:27,181 INFO L495 AbstractCegarLoop]: Abstraction has 33461 states and 46947 transitions. [2022-07-23 00:24:27,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-07-23 00:24:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 46947 transitions. [2022-07-23 00:24:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2022-07-23 00:24:27,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:27,215 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:27,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:27,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:27,444 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:27,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:27,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1316402270, now seen corresponding path program 1 times [2022-07-23 00:24:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:27,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211373453] [2022-07-23 00:24:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:27,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:27,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:27,449 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:27,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 00:24:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:31,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 5352 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 00:24:31,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 13988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13988 trivial. 0 not checked. [2022-07-23 00:24:32,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:32,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:32,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211373453] [2022-07-23 00:24:32,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211373453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:32,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:32,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:24:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558180085] [2022-07-23 00:24:32,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:32,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:24:32,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:32,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:24:32,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:24:32,850 INFO L87 Difference]: Start difference. First operand 33461 states and 46947 transitions. Second operand has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-07-23 00:24:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:35,540 INFO L93 Difference]: Finished difference Result 67034 states and 94259 transitions. [2022-07-23 00:24:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:24:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) Word has length 1425 [2022-07-23 00:24:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:35,655 INFO L225 Difference]: With dead ends: 67034 [2022-07-23 00:24:35,655 INFO L226 Difference]: Without dead ends: 33621 [2022-07-23 00:24:35,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1418 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:24:35,750 INFO L413 NwaCegarLoop]: 2697 mSDtfsCounter, 12 mSDsluCounter, 16123 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18820 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:35,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18820 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-23 00:24:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33621 states. [2022-07-23 00:24:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33621 to 33509. [2022-07-23 00:24:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33509 states, 22068 states have (on average 1.3011600507522205) internal successors, (28714), 22717 states have internal predecessors, (28714), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-23 00:24:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33509 states to 33509 states and 47011 transitions. [2022-07-23 00:24:36,938 INFO L78 Accepts]: Start accepts. Automaton has 33509 states and 47011 transitions. Word has length 1425 [2022-07-23 00:24:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:36,939 INFO L495 AbstractCegarLoop]: Abstraction has 33509 states and 47011 transitions. [2022-07-23 00:24:36,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-07-23 00:24:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 33509 states and 47011 transitions. [2022-07-23 00:24:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2022-07-23 00:24:36,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:36,987 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:37,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:37,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:37,204 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:37,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1415645786, now seen corresponding path program 1 times [2022-07-23 00:24:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:37,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972607803] [2022-07-23 00:24:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:37,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:37,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:37,209 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:37,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 00:24:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:41,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:24:41,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 2191 proven. 0 refuted. 0 times theorem prover too weak. 11796 trivial. 0 not checked. [2022-07-23 00:24:41,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:41,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:41,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972607803] [2022-07-23 00:24:41,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972607803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:41,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:41,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:24:41,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394668837] [2022-07-23 00:24:41,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:41,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:24:41,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:41,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:24:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:41,988 INFO L87 Difference]: Start difference. First operand 33509 states and 47011 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-23 00:24:42,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:42,852 INFO L93 Difference]: Finished difference Result 67098 states and 94227 transitions. [2022-07-23 00:24:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:24:42,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1428 [2022-07-23 00:24:42,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:43,064 INFO L225 Difference]: With dead ends: 67098 [2022-07-23 00:24:43,064 INFO L226 Difference]: Without dead ends: 33637 [2022-07-23 00:24:43,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:43,148 INFO L413 NwaCegarLoop]: 2699 mSDtfsCounter, 3 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:43,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5392 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:24:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33637 states. [2022-07-23 00:24:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33637 to 33541. [2022-07-23 00:24:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33541 states, 22100 states have (on average 1.3014479638009049) internal successors, (28762), 22749 states have internal predecessors, (28762), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-23 00:24:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33541 states to 33541 states and 47059 transitions. [2022-07-23 00:24:44,168 INFO L78 Accepts]: Start accepts. Automaton has 33541 states and 47059 transitions. Word has length 1428 [2022-07-23 00:24:44,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:44,172 INFO L495 AbstractCegarLoop]: Abstraction has 33541 states and 47059 transitions. [2022-07-23 00:24:44,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-23 00:24:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 33541 states and 47059 transitions. [2022-07-23 00:24:44,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-23 00:24:44,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:44,220 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:44,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:44,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:44,436 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:44,436 INFO L85 PathProgramCache]: Analyzing trace with hash 201680618, now seen corresponding path program 1 times [2022-07-23 00:24:44,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:44,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034477840] [2022-07-23 00:24:44,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:44,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:44,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:44,440 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:44,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 00:24:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:49,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:24:49,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 3430 proven. 0 refuted. 0 times theorem prover too weak. 10556 trivial. 0 not checked. [2022-07-23 00:24:49,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:24:49,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:24:49,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034477840] [2022-07-23 00:24:49,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034477840] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:24:49,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:24:49,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:24:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848586918] [2022-07-23 00:24:49,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:24:49,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:24:49,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:24:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:24:49,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:49,651 INFO L87 Difference]: Start difference. First operand 33541 states and 47059 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-23 00:24:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:24:50,633 INFO L93 Difference]: Finished difference Result 67162 states and 94323 transitions. [2022-07-23 00:24:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:24:50,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1427 [2022-07-23 00:24:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:24:50,734 INFO L225 Difference]: With dead ends: 67162 [2022-07-23 00:24:50,735 INFO L226 Difference]: Without dead ends: 33669 [2022-07-23 00:24:50,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:24:50,814 INFO L413 NwaCegarLoop]: 2701 mSDtfsCounter, 3 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:24:50,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5395 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:24:50,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33669 states. [2022-07-23 00:24:51,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33669 to 33573. [2022-07-23 00:24:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33573 states, 22132 states have (on average 1.301735044279776) internal successors, (28810), 22781 states have internal predecessors, (28810), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-23 00:24:51,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33573 states to 33573 states and 47107 transitions. [2022-07-23 00:24:51,857 INFO L78 Accepts]: Start accepts. Automaton has 33573 states and 47107 transitions. Word has length 1427 [2022-07-23 00:24:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:24:51,859 INFO L495 AbstractCegarLoop]: Abstraction has 33573 states and 47107 transitions. [2022-07-23 00:24:51,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-23 00:24:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 33573 states and 47107 transitions. [2022-07-23 00:24:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-23 00:24:51,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:24:51,893 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:24:51,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 00:24:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:24:52,108 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:24:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:24:52,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2036392852, now seen corresponding path program 1 times [2022-07-23 00:24:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:24:52,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582433134] [2022-07-23 00:24:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:24:52,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:24:52,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:24:52,118 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:24:52,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 00:25:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:25:01,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:25:01,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:25:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 13294 trivial. 0 not checked. [2022-07-23 00:25:01,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:25:01,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:25:01,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582433134] [2022-07-23 00:25:01,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582433134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:25:01,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:25:01,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:25:01,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13124420] [2022-07-23 00:25:01,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:25:01,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:25:01,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:25:01,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:25:01,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:25:01,765 INFO L87 Difference]: Start difference. First operand 33573 states and 47107 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-23 00:25:04,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:25:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:25:04,871 INFO L93 Difference]: Finished difference Result 67362 states and 94639 transitions. [2022-07-23 00:25:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:25:04,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 1427 [2022-07-23 00:25:04,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:25:04,989 INFO L225 Difference]: With dead ends: 67362 [2022-07-23 00:25:04,989 INFO L226 Difference]: Without dead ends: 33837 [2022-07-23 00:25:05,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:25:05,072 INFO L413 NwaCegarLoop]: 2700 mSDtfsCounter, 7 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:25:05,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5393 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-23 00:25:05,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33837 states. [2022-07-23 00:25:06,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33837 to 33597. [2022-07-23 00:25:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33597 states, 22156 states have (on average 1.3014081964253474) internal successors, (28834), 22805 states have internal predecessors, (28834), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-23 00:25:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33597 states to 33597 states and 47131 transitions. [2022-07-23 00:25:06,192 INFO L78 Accepts]: Start accepts. Automaton has 33597 states and 47131 transitions. Word has length 1427 [2022-07-23 00:25:06,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:25:06,193 INFO L495 AbstractCegarLoop]: Abstraction has 33597 states and 47131 transitions. [2022-07-23 00:25:06,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-23 00:25:06,194 INFO L276 IsEmpty]: Start isEmpty. Operand 33597 states and 47131 transitions. [2022-07-23 00:25:06,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2022-07-23 00:25:06,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:25:06,222 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 47, 47, 31, 31, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:25:06,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 00:25:06,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:25:06,435 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:25:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:25:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1165066850, now seen corresponding path program 1 times [2022-07-23 00:25:06,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:25:06,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934962111] [2022-07-23 00:25:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:25:06,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:25:06,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:25:06,440 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:25:06,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 00:25:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:25:15,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 5512 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:25:15,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:25:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15462 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 14713 trivial. 0 not checked. [2022-07-23 00:25:16,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:25:16,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:25:16,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934962111] [2022-07-23 00:25:16,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934962111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:25:16,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:25:16,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:25:16,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814593026] [2022-07-23 00:25:16,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:25:16,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:25:16,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:25:16,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:25:16,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:25:16,005 INFO L87 Difference]: Start difference. First operand 33597 states and 47131 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-07-23 00:25:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:25:16,828 INFO L93 Difference]: Finished difference Result 67266 states and 94471 transitions. [2022-07-23 00:25:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:25:16,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 1479 [2022-07-23 00:25:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:25:16,959 INFO L225 Difference]: With dead ends: 67266 [2022-07-23 00:25:16,959 INFO L226 Difference]: Without dead ends: 33717 [2022-07-23 00:25:17,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1477 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:25:17,053 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5390 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:25:17,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:25:17,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33717 states. [2022-07-23 00:25:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33717 to 33621. [2022-07-23 00:25:17,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33621 states, 22180 states have (on average 1.3010820559062217) internal successors, (28858), 22829 states have internal predecessors, (28858), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-23 00:25:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33621 states to 33621 states and 47155 transitions. [2022-07-23 00:25:18,097 INFO L78 Accepts]: Start accepts. Automaton has 33621 states and 47155 transitions. Word has length 1479 [2022-07-23 00:25:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:25:18,098 INFO L495 AbstractCegarLoop]: Abstraction has 33621 states and 47155 transitions. [2022-07-23 00:25:18,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-07-23 00:25:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 33621 states and 47155 transitions. [2022-07-23 00:25:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-07-23 00:25:18,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:25:18,132 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 49, 49, 33, 33, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:25:18,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-23 00:25:18,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:25:18,352 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:25:18,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:25:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash -710622717, now seen corresponding path program 1 times [2022-07-23 00:25:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:25:18,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814485392] [2022-07-23 00:25:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:25:18,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:25:18,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:25:18,356 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:25:18,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 00:25:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:25:28,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 00:25:28,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:25:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 805 proven. 1 refuted. 0 times theorem prover too weak. 16243 trivial. 0 not checked. [2022-07-23 00:25:28,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:25:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-07-23 00:25:30,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:25:30,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814485392] [2022-07-23 00:25:30,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814485392] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:25:30,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:25:30,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-23 00:25:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173410259] [2022-07-23 00:25:30,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:25:30,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:25:30,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:25:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:25:30,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:25:30,412 INFO L87 Difference]: Start difference. First operand 33621 states and 47155 transitions. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-07-23 00:25:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:25:31,559 INFO L93 Difference]: Finished difference Result 67554 states and 94903 transitions. [2022-07-23 00:25:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:25:31,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) Word has length 1528 [2022-07-23 00:25:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:25:31,668 INFO L225 Difference]: With dead ends: 67554 [2022-07-23 00:25:31,669 INFO L226 Difference]: Without dead ends: 33981 [2022-07-23 00:25:31,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3055 GetRequests, 3050 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:25:31,749 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 10 mSDsluCounter, 5382 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:25:31,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8086 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 00:25:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2022-07-23 00:25:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 33981. [2022-07-23 00:25:32,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33981 states, 22396 states have (on average 1.2981782461153777) internal successors, (29074), 23045 states have internal predecessors, (29074), 9285 states have call successors, (9285), 2301 states have call predecessors, (9285), 2299 states have return successors, (9300), 9054 states have call predecessors, (9300), 9282 states have call successors, (9300) [2022-07-23 00:25:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33981 states to 33981 states and 47659 transitions. [2022-07-23 00:25:32,773 INFO L78 Accepts]: Start accepts. Automaton has 33981 states and 47659 transitions. Word has length 1528 [2022-07-23 00:25:32,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:25:32,775 INFO L495 AbstractCegarLoop]: Abstraction has 33981 states and 47659 transitions. [2022-07-23 00:25:32,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-07-23 00:25:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand 33981 states and 47659 transitions. [2022-07-23 00:25:32,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1675 [2022-07-23 00:25:32,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:25:32,807 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 55, 55, 39, 39, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:25:32,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 00:25:33,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:25:33,020 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:25:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:25:33,020 INFO L85 PathProgramCache]: Analyzing trace with hash -672348468, now seen corresponding path program 1 times [2022-07-23 00:25:33,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:25:33,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030952870] [2022-07-23 00:25:33,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:25:33,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:25:33,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:25:33,024 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:25:33,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 00:25:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:25:44,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 6066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 00:25:44,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:25:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 972 proven. 1 refuted. 0 times theorem prover too weak. 21538 trivial. 0 not checked. [2022-07-23 00:25:44,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:25:47,060 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22510 trivial. 0 not checked. [2022-07-23 00:25:47,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:25:47,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030952870] [2022-07-23 00:25:47,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030952870] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:25:47,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:25:47,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-23 00:25:47,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489697199] [2022-07-23 00:25:47,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:25:47,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:25:47,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:25:47,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:25:47,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:25:47,064 INFO L87 Difference]: Start difference. First operand 33981 states and 47659 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-07-23 00:25:49,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:25:50,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:25:50,403 INFO L93 Difference]: Finished difference Result 69858 states and 98143 transitions. [2022-07-23 00:25:50,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:25:50,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 1674 [2022-07-23 00:25:50,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:25:50,509 INFO L225 Difference]: With dead ends: 69858 [2022-07-23 00:25:50,509 INFO L226 Difference]: Without dead ends: 35925 [2022-07-23 00:25:50,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3347 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:25:50,582 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 35 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8108 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:25:50,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 8108 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-23 00:25:50,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35925 states. [2022-07-23 00:25:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35925 to 35925. [2022-07-23 00:25:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35925 states, 23620 states have (on average 1.285774767146486) internal successors, (30370), 24269 states have internal predecessors, (30370), 10005 states have call successors, (10005), 2301 states have call predecessors, (10005), 2299 states have return successors, (10020), 9774 states have call predecessors, (10020), 10002 states have call successors, (10020) [2022-07-23 00:25:51,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35925 states to 35925 states and 50395 transitions. [2022-07-23 00:25:51,731 INFO L78 Accepts]: Start accepts. Automaton has 35925 states and 50395 transitions. Word has length 1674 [2022-07-23 00:25:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:25:51,732 INFO L495 AbstractCegarLoop]: Abstraction has 35925 states and 50395 transitions. [2022-07-23 00:25:51,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-07-23 00:25:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 35925 states and 50395 transitions. [2022-07-23 00:25:51,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2418 [2022-07-23 00:25:51,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:25:51,779 INFO L195 NwaCegarLoop]: trace histogram [138, 138, 85, 85, 69, 69, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:25:51,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-23 00:25:52,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:25:52,004 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:25:52,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:25:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1455561723, now seen corresponding path program 1 times [2022-07-23 00:25:52,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:25:52,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137005094] [2022-07-23 00:25:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:25:52,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:25:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:25:52,009 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:25:52,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 00:26:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:26:14,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 8194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 00:26:14,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:26:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 1812 proven. 574 refuted. 0 times theorem prover too weak. 63072 trivial. 0 not checked. [2022-07-23 00:26:16,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:26:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 64884 trivial. 0 not checked. [2022-07-23 00:26:20,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:26:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137005094] [2022-07-23 00:26:20,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137005094] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:26:20,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:26:20,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-23 00:26:20,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68009396] [2022-07-23 00:26:20,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:26:20,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 00:26:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:26:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 00:26:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:26:20,867 INFO L87 Difference]: Start difference. First operand 35925 states and 50395 transitions. Second operand has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) [2022-07-23 00:26:22,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:24,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:26,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:28,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:31,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:33,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:35,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:37,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:26:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:26:40,274 INFO L93 Difference]: Finished difference Result 74394 states and 104551 transitions. [2022-07-23 00:26:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 00:26:40,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) Word has length 2417 [2022-07-23 00:26:40,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:26:40,408 INFO L225 Difference]: With dead ends: 74394 [2022-07-23 00:26:40,408 INFO L226 Difference]: Without dead ends: 38517 [2022-07-23 00:26:40,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4834 GetRequests, 4822 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:26:40,504 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 63 mSDsluCounter, 21720 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 36 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 24480 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:26:40,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 24480 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 256 Invalid, 8 Unknown, 0 Unchecked, 18.0s Time] [2022-07-23 00:26:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38517 states. [2022-07-23 00:26:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38517 to 38517. [2022-07-23 00:26:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38517 states, 25252 states have (on average 1.2711072390305718) internal successors, (32098), 25901 states have internal predecessors, (32098), 10965 states have call successors, (10965), 2301 states have call predecessors, (10965), 2299 states have return successors, (10980), 10734 states have call predecessors, (10980), 10962 states have call successors, (10980) [2022-07-23 00:26:41,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38517 states to 38517 states and 54043 transitions. [2022-07-23 00:26:41,819 INFO L78 Accepts]: Start accepts. Automaton has 38517 states and 54043 transitions. Word has length 2417 [2022-07-23 00:26:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:26:41,821 INFO L495 AbstractCegarLoop]: Abstraction has 38517 states and 54043 transitions. [2022-07-23 00:26:41,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) [2022-07-23 00:26:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 38517 states and 54043 transitions. [2022-07-23 00:26:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3404 [2022-07-23 00:26:42,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:42,065 INFO L195 NwaCegarLoop]: trace histogram [218, 218, 125, 125, 109, 109, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 32, 32, 32, 32, 32, 32, 32, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:26:42,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-23 00:26:42,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:26:42,283 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:42,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:42,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1362127980, now seen corresponding path program 2 times [2022-07-23 00:26:42,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:42,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335209903] [2022-07-23 00:26:42,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:26:42,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:42,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:42,290 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:26:42,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process