./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:57:12,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:57:12,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:57:12,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:57:12,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:57:12,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:57:12,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:57:12,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:57:12,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:57:12,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:57:12,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:57:12,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:57:12,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:57:12,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:57:12,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:57:12,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:57:12,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:57:12,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:57:12,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:57:12,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:57:12,188 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:57:12,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:57:12,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:57:12,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:57:12,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:57:12,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:57:12,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:57:12,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:57:12,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:57:12,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:57:12,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:57:12,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:57:12,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:57:12,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:57:12,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:57:12,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:57:12,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:57:12,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:57:12,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:57:12,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:57:12,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:57:12,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:57:12,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:57:12,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:57:12,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:57:12,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:57:12,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:57:12,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:57:12,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:57:12,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:57:12,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:57:12,250 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:57:12,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:57:12,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:57:12,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:57:12,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:57:12,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:57:12,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:57:12,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:57:12,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:57:12,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:57:12,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:57:12,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:57:12,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:57:12,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:57:12,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:57:12,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:57:12,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:57:12,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:57:12,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:57:12,254 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:57:12,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:57:12,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:57:12,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-14 01:57:12,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:57:12,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:57:12,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:57:12,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:57:12,618 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:57:12,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-14 01:57:12,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c61ea798/4de69f67686546b2993cd069bcf1c742/FLAG1cd5c56ce [2022-07-14 01:57:13,417 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:57:13,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-14 01:57:13,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c61ea798/4de69f67686546b2993cd069bcf1c742/FLAG1cd5c56ce [2022-07-14 01:57:13,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c61ea798/4de69f67686546b2993cd069bcf1c742 [2022-07-14 01:57:13,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:57:13,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:57:13,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:57:13,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:57:13,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:57:13,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:13" (1/1) ... [2022-07-14 01:57:13,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2a7a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:13, skipping insertion in model container [2022-07-14 01:57:13,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:13" (1/1) ... [2022-07-14 01:57:13,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:57:13,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:57:15,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-14 01:57:15,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:57:15,926 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:57:16,073 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 01:57:16,078 INFO L158 Benchmark]: Toolchain (without parser) took 2488.28ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 99.5MB in the beginning and 107.4MB in the end (delta: -7.8MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2022-07-14 01:57:16,078 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 153.1MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 01:57:16,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2486.23ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 99.4MB in the beginning and 107.4MB in the end (delta: -7.9MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2022-07-14 01:57:16,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 153.1MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2486.23ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 99.4MB in the beginning and 107.4MB in the end (delta: -7.9MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7817]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:57:18,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:57:18,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:57:18,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:57:18,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:57:18,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:57:18,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:57:18,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:57:18,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:57:18,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:57:18,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:57:18,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:57:18,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:57:18,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:57:18,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:57:18,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:57:18,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:57:18,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:57:18,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:57:18,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:57:18,167 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:57:18,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:57:18,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:57:18,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:57:18,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:57:18,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:57:18,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:57:18,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:57:18,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:57:18,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:57:18,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:57:18,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:57:18,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:57:18,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:57:18,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:57:18,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:57:18,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:57:18,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:57:18,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:57:18,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:57:18,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:57:18,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:57:18,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 01:57:18,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:57:18,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:57:18,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:57:18,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:57:18,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:57:18,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:57:18,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:57:18,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:57:18,216 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:57:18,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:57:18,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:57:18,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:57:18,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:57:18,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:57:18,218 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 01:57:18,218 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 01:57:18,218 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 01:57:18,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:57:18,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:57:18,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:57:18,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:57:18,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:57:18,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:57:18,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:57:18,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:57:18,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:57:18,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:57:18,220 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 01:57:18,221 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 01:57:18,221 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:57:18,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:57:18,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:57:18,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 01:57:18,222 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-07-14 01:57:18,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:57:18,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:57:18,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:57:18,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:57:18,676 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:57:18,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-14 01:57:18,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c563780/8e3ec8cc417f469aad47208bd8a95d7f/FLAG78930362b [2022-07-14 01:57:19,422 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:57:19,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-14 01:57:19,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c563780/8e3ec8cc417f469aad47208bd8a95d7f/FLAG78930362b [2022-07-14 01:57:19,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c563780/8e3ec8cc417f469aad47208bd8a95d7f [2022-07-14 01:57:19,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:57:19,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:57:19,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:57:19,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:57:19,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:57:19,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:19" (1/1) ... [2022-07-14 01:57:19,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@178e8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:19, skipping insertion in model container [2022-07-14 01:57:19,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:19" (1/1) ... [2022-07-14 01:57:19,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:57:19,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:57:21,886 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-14 01:57:21,906 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-14 01:57:22,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-14 01:57:22,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:57:22,152 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 01:57:22,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:57:22,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-14 01:57:22,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:57:22,448 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:57:22,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-07-14 01:57:22,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:57:22,967 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:57:22,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22 WrapperNode [2022-07-14 01:57:22,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:57:22,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:57:22,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:57:22,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:57:22,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,296 INFO L137 Inliner]: procedures = 424, calls = 2551, calls flagged for inlining = 208, calls inlined = 189, statements flattened = 5544 [2022-07-14 01:57:23,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:57:23,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:57:23,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:57:23,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:57:23,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:57:23,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:57:23,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:57:23,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:57:23,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (1/1) ... [2022-07-14 01:57:23,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:57:23,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:57:23,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 01:57:23,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 01:57:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-14 01:57:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-14 01:57:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 01:57:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 01:57:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:57:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:57:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 01:57:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 01:57:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2022-07-14 01:57:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2022-07-14 01:57:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-14 01:57:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-14 01:57:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 01:57:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 01:57:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:57:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:57:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-14 01:57:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-14 01:57:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 01:57:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 01:57:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-14 01:57:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-14 01:57:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-14 01:57:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-14 01:57:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-14 01:57:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-14 01:57:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 01:57:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 01:57:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 01:57:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 01:57:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-14 01:57:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-14 01:57:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-14 01:57:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-14 01:57:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 01:57:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 01:57:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:57:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:57:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-14 01:57:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-14 01:57:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2022-07-14 01:57:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2022-07-14 01:57:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-14 01:57:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-14 01:57:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-14 01:57:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-14 01:57:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 01:57:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 01:57:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 01:57:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 01:57:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 01:57:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 01:57:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-14 01:57:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-14 01:57:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:57:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:57:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 01:57:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 01:57:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:57:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 01:57:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 01:57:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 01:57:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 01:57:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 01:57:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-14 01:57:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-14 01:57:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 01:57:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-14 01:57:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-14 01:57:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-14 01:57:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-14 01:57:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 01:57:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 01:57:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-14 01:57:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-14 01:57:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 01:57:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 01:57:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 01:57:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 01:57:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2022-07-14 01:57:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2022-07-14 01:57:23,854 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-14 01:57:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-14 01:57:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 01:57:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 01:57:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 01:57:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 01:57:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 01:57:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 01:57:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 01:57:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 01:57:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-14 01:57:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-14 01:57:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 01:57:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 01:57:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-14 01:57:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-14 01:57:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 01:57:23,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 01:57:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-14 01:57:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-14 01:57:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-14 01:57:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-14 01:57:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:57:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:57:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-14 01:57:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-14 01:57:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-14 01:57:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-14 01:57:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:57:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-14 01:57:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-14 01:57:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-14 01:57:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-14 01:57:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:57:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2022-07-14 01:57:23,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2022-07-14 01:57:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-14 01:57:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-14 01:57:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 01:57:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 01:57:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:57:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-14 01:57:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-14 01:57:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 01:57:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 01:57:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 01:57:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-14 01:57:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-14 01:57:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 01:57:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 01:57:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-14 01:57:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-14 01:57:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-14 01:57:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-14 01:57:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 01:57:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 01:57:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-14 01:57:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-14 01:57:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-14 01:57:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-14 01:57:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-14 01:57:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-14 01:57:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-14 01:57:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-14 01:57:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-14 01:57:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-14 01:57:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2022-07-14 01:57:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2022-07-14 01:57:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-14 01:57:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-14 01:57:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 01:57:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 01:57:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 01:57:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:57:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:57:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-14 01:57:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-14 01:57:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 01:57:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 01:57:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-14 01:57:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 01:57:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:57:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:57:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 01:57:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 01:57:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-14 01:57:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-14 01:57:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-14 01:57:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-14 01:57:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-14 01:57:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-14 01:57:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-14 01:57:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-14 01:57:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:57:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:57:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-14 01:57:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-14 01:57:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 01:57:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 01:57:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-14 01:57:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-14 01:57:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:57:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:57:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-14 01:57:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-14 01:57:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:57:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:57:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 01:57:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 01:57:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 01:57:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 01:57:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-14 01:57:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-14 01:57:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 01:57:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 01:57:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:57:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 01:57:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 01:57:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-14 01:57:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 01:57:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 01:57:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:57:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-07-14 01:57:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-07-14 01:57:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-14 01:57:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-14 01:57:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 01:57:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 01:57:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 01:57:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 01:57:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-14 01:57:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-14 01:57:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 01:57:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 01:57:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-14 01:57:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-14 01:57:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2022-07-14 01:57:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2022-07-14 01:57:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 01:57:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 01:57:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-14 01:57:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-14 01:57:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-14 01:57:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-14 01:57:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 01:57:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 01:57:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 01:57:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 01:57:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-14 01:57:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-14 01:57:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-14 01:57:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-14 01:57:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:57:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:57:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-14 01:57:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-14 01:57:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 01:57:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 01:57:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 01:57:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 01:57:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 01:57:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 01:57:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:57:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:57:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-14 01:57:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-14 01:57:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-14 01:57:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-14 01:57:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:57:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:57:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-14 01:57:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-14 01:57:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 01:57:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 01:57:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-14 01:57:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-14 01:57:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-14 01:57:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-14 01:57:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-14 01:57:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-14 01:57:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-14 01:57:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-14 01:57:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-14 01:57:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-14 01:57:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-14 01:57:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-14 01:57:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-14 01:57:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-14 01:57:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-14 01:57:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-14 01:57:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-14 01:57:24,475 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:57:24,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:57:24,849 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:58:07,338 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:58:07,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:58:07,360 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:58:07,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:58:07 BoogieIcfgContainer [2022-07-14 01:58:07,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:58:07,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:58:07,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:58:07,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:58:07,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:57:19" (1/3) ... [2022-07-14 01:58:07,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6281b68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:58:07, skipping insertion in model container [2022-07-14 01:58:07,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:22" (2/3) ... [2022-07-14 01:58:07,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6281b68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:58:07, skipping insertion in model container [2022-07-14 01:58:07,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:58:07" (3/3) ... [2022-07-14 01:58:07,370 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-07-14 01:58:07,380 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:58:07,380 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:58:07,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:58:07,463 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@6d873205, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@16095c6a [2022-07-14 01:58:07,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:58:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 2286 states, 1533 states have (on average 1.3052837573385518) internal successors, (2001), 1589 states have internal predecessors, (2001), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) [2022-07-14 01:58:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-14 01:58:07,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:07,519 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:07,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1836044323, now seen corresponding path program 1 times [2022-07-14 01:58:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:07,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288765913] [2022-07-14 01:58:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:07,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:07,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:07,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:07,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 01:58:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:09,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-14 01:58:09,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-14 01:58:09,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:09,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:09,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288765913] [2022-07-14 01:58:09,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288765913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:09,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:09,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 01:58:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876149375] [2022-07-14 01:58:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:09,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 01:58:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 01:58:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 01:58:09,491 INFO L87 Difference]: Start difference. First operand has 2286 states, 1533 states have (on average 1.3052837573385518) internal successors, (2001), 1589 states have internal predecessors, (2001), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:58:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:09,694 INFO L93 Difference]: Finished difference Result 4567 states and 6529 transitions. [2022-07-14 01:58:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 01:58:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 211 [2022-07-14 01:58:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:09,736 INFO L225 Difference]: With dead ends: 4567 [2022-07-14 01:58:09,737 INFO L226 Difference]: Without dead ends: 2260 [2022-07-14 01:58:09,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 01:58:09,774 INFO L413 NwaCegarLoop]: 3239 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:09,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3239 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:58:09,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2022-07-14 01:58:09,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2022-07-14 01:58:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1519 states have (on average 1.2955892034233047) internal successors, (1968), 1563 states have internal predecessors, (1968), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-14 01:58:09,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3199 transitions. [2022-07-14 01:58:09,919 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3199 transitions. Word has length 211 [2022-07-14 01:58:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:09,920 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 3199 transitions. [2022-07-14 01:58:09,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 01:58:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3199 transitions. [2022-07-14 01:58:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-14 01:58:09,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:09,928 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:09,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:10,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:10,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash -191787369, now seen corresponding path program 1 times [2022-07-14 01:58:10,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:10,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714284575] [2022-07-14 01:58:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:10,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:10,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:10,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:10,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 01:58:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:12,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 01:58:12,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-14 01:58:12,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:12,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:12,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714284575] [2022-07-14 01:58:12,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714284575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:12,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:12,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:58:12,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971694681] [2022-07-14 01:58:12,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:12,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:58:12,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:12,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:58:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:58:12,341 INFO L87 Difference]: Start difference. First operand 2260 states and 3199 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-14 01:58:12,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:12,847 INFO L93 Difference]: Finished difference Result 4510 states and 6413 transitions. [2022-07-14 01:58:12,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 01:58:12,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 211 [2022-07-14 01:58:12,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:12,861 INFO L225 Difference]: With dead ends: 4510 [2022-07-14 01:58:12,861 INFO L226 Difference]: Without dead ends: 2261 [2022-07-14 01:58:12,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:58:12,873 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 6 mSDsluCounter, 12760 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15954 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:12,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15954 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:58:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-07-14 01:58:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2022-07-14 01:58:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1520 states have (on average 1.2953947368421053) internal successors, (1969), 1564 states have internal predecessors, (1969), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-14 01:58:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3200 transitions. [2022-07-14 01:58:12,937 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3200 transitions. Word has length 211 [2022-07-14 01:58:12,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:12,938 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3200 transitions. [2022-07-14 01:58:12,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-14 01:58:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3200 transitions. [2022-07-14 01:58:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-14 01:58:12,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:12,945 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:12,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-14 01:58:13,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:13,160 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1519484747, now seen corresponding path program 1 times [2022-07-14 01:58:13,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:13,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949372031] [2022-07-14 01:58:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:13,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:13,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:13,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 01:58:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:14,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 01:58:14,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-14 01:58:15,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:58:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-14 01:58:16,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:16,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949372031] [2022-07-14 01:58:16,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949372031] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:58:16,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:58:16,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-14 01:58:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650746869] [2022-07-14 01:58:16,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:58:16,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:58:16,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:16,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:58:16,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:58:16,162 INFO L87 Difference]: Start difference. First operand 2261 states and 3200 transitions. Second operand has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-14 01:58:16,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:16,989 INFO L93 Difference]: Finished difference Result 4512 states and 6415 transitions. [2022-07-14 01:58:16,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:58:16,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 213 [2022-07-14 01:58:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:17,008 INFO L225 Difference]: With dead ends: 4512 [2022-07-14 01:58:17,023 INFO L226 Difference]: Without dead ends: 2262 [2022-07-14 01:58:17,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:58:17,038 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 7 mSDsluCounter, 19138 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22332 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:17,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22332 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:58:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-07-14 01:58:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-07-14 01:58:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1521 states have (on average 1.2952005259697568) internal successors, (1970), 1565 states have internal predecessors, (1970), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-14 01:58:17,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3201 transitions. [2022-07-14 01:58:17,100 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3201 transitions. Word has length 213 [2022-07-14 01:58:17,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:17,101 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3201 transitions. [2022-07-14 01:58:17,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.444444444444445) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-14 01:58:17,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3201 transitions. [2022-07-14 01:58:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-14 01:58:17,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:17,107 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:17,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:17,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:17,326 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:17,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:17,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1053476375, now seen corresponding path program 2 times [2022-07-14 01:58:17,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:17,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79307147] [2022-07-14 01:58:17,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:58:17,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:17,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:17,330 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:17,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 01:58:18,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:58:18,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:58:18,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:58:18,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-14 01:58:18,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:18,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79307147] [2022-07-14 01:58:18,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79307147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:18,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:18,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 01:58:18,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274909189] [2022-07-14 01:58:18,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:18,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 01:58:18,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 01:58:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 01:58:18,639 INFO L87 Difference]: Start difference. First operand 2262 states and 3201 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 01:58:19,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:19,182 INFO L93 Difference]: Finished difference Result 4755 states and 6787 transitions. [2022-07-14 01:58:19,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:58:19,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 215 [2022-07-14 01:58:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:19,197 INFO L225 Difference]: With dead ends: 4755 [2022-07-14 01:58:19,197 INFO L226 Difference]: Without dead ends: 2520 [2022-07-14 01:58:19,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:58:19,208 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 369 mSDsluCounter, 6602 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 10193 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:19,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 10193 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:58:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-07-14 01:58:19,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2264. [2022-07-14 01:58:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1523 states have (on average 1.2948128693368353) internal successors, (1972), 1567 states have internal predecessors, (1972), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-14 01:58:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3203 transitions. [2022-07-14 01:58:19,263 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3203 transitions. Word has length 215 [2022-07-14 01:58:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:19,264 INFO L495 AbstractCegarLoop]: Abstraction has 2264 states and 3203 transitions. [2022-07-14 01:58:19,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 01:58:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3203 transitions. [2022-07-14 01:58:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-14 01:58:19,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:19,270 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:19,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:19,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:19,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:19,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:19,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1356599653, now seen corresponding path program 1 times [2022-07-14 01:58:19,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:19,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136077439] [2022-07-14 01:58:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:19,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:19,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:19,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:19,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 01:58:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:21,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:58:21,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-14 01:58:21,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:58:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-07-14 01:58:22,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:22,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136077439] [2022-07-14 01:58:22,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136077439] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:58:22,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:58:22,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-14 01:58:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963351295] [2022-07-14 01:58:22,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:58:22,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 01:58:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 01:58:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:58:22,768 INFO L87 Difference]: Start difference. First operand 2264 states and 3203 transitions. Second operand has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-14 01:58:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:24,100 INFO L93 Difference]: Finished difference Result 4518 states and 6421 transitions. [2022-07-14 01:58:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 01:58:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 221 [2022-07-14 01:58:24,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:24,111 INFO L225 Difference]: With dead ends: 4518 [2022-07-14 01:58:24,111 INFO L226 Difference]: Without dead ends: 2265 [2022-07-14 01:58:24,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:58:24,118 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 12 mSDsluCounter, 19143 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 22337 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:24,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 22337 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 01:58:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-07-14 01:58:24,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2265. [2022-07-14 01:58:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1524 states have (on average 1.2946194225721785) internal successors, (1973), 1568 states have internal predecessors, (1973), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-14 01:58:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3204 transitions. [2022-07-14 01:58:24,185 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3204 transitions. Word has length 221 [2022-07-14 01:58:24,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:24,186 INFO L495 AbstractCegarLoop]: Abstraction has 2265 states and 3204 transitions. [2022-07-14 01:58:24,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 13 states have internal predecessors, (120), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-14 01:58:24,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3204 transitions. [2022-07-14 01:58:24,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-14 01:58:24,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:24,192 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:24,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:24,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:24,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1811297457, now seen corresponding path program 2 times [2022-07-14 01:58:24,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:24,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310617245] [2022-07-14 01:58:24,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:58:24,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:24,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:24,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:24,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 01:58:25,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:58:25,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:58:25,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-14 01:58:25,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-07-14 01:58:26,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:26,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:26,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310617245] [2022-07-14 01:58:26,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310617245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:26,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:26,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:58:26,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229525322] [2022-07-14 01:58:26,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:26,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:58:26,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:26,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:58:26,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:58:26,045 INFO L87 Difference]: Start difference. First operand 2265 states and 3204 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:58:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:26,615 INFO L93 Difference]: Finished difference Result 4511 states and 6414 transitions. [2022-07-14 01:58:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 01:58:26,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 223 [2022-07-14 01:58:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:26,628 INFO L225 Difference]: With dead ends: 4511 [2022-07-14 01:58:26,628 INFO L226 Difference]: Without dead ends: 2273 [2022-07-14 01:58:26,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:58:26,637 INFO L413 NwaCegarLoop]: 3200 mSDtfsCounter, 2 mSDsluCounter, 19177 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22377 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:26,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22377 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:58:26,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-07-14 01:58:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2022-07-14 01:58:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1530 states have (on average 1.2934640522875818) internal successors, (1979), 1574 states have internal predecessors, (1979), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-14 01:58:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3222 transitions. [2022-07-14 01:58:26,703 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3222 transitions. Word has length 223 [2022-07-14 01:58:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:26,705 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 3222 transitions. [2022-07-14 01:58:26,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:58:26,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3222 transitions. [2022-07-14 01:58:26,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-14 01:58:26,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:26,711 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:26,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:26,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:26,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:26,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:26,937 INFO L85 PathProgramCache]: Analyzing trace with hash -886033841, now seen corresponding path program 1 times [2022-07-14 01:58:26,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:26,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88185956] [2022-07-14 01:58:26,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:26,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:26,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:26,954 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:58:26,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 01:58:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:28,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 01:58:28,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 72 proven. 6 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-07-14 01:58:29,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:58:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-07-14 01:58:30,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:30,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88185956] [2022-07-14 01:58:30,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88185956] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:58:30,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:58:30,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-14 01:58:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680630457] [2022-07-14 01:58:30,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:58:30,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 01:58:30,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:30,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 01:58:30,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:58:30,509 INFO L87 Difference]: Start difference. First operand 2273 states and 3222 transitions. Second operand has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 01:58:31,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:31,479 INFO L93 Difference]: Finished difference Result 4536 states and 6459 transitions. [2022-07-14 01:58:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:58:31,480 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 235 [2022-07-14 01:58:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:31,546 INFO L225 Difference]: With dead ends: 4536 [2022-07-14 01:58:31,546 INFO L226 Difference]: Without dead ends: 2274 [2022-07-14 01:58:31,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-14 01:58:31,555 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 11 mSDsluCounter, 22326 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25520 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:31,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25520 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 01:58:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-07-14 01:58:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2022-07-14 01:58:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1531 states have (on average 1.2932723709993468) internal successors, (1980), 1575 states have internal predecessors, (1980), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-14 01:58:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3223 transitions. [2022-07-14 01:58:31,606 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3223 transitions. Word has length 235 [2022-07-14 01:58:31,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:31,606 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3223 transitions. [2022-07-14 01:58:31,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 01:58:31,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3223 transitions. [2022-07-14 01:58:31,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-14 01:58:31,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:31,613 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:31,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:31,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:31,827 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1388266419, now seen corresponding path program 2 times [2022-07-14 01:58:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:31,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242569584] [2022-07-14 01:58:31,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:58:31,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:31,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:31,831 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) [2022-07-14 01:58:31,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 01:58:32,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:58:32,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:58:33,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:33,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-14 01:58:33,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:33,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:33,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242569584] [2022-07-14 01:58:33,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242569584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:33,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:33,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:33,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93331465] [2022-07-14 01:58:33,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:33,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:33,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:33,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:33,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:33,047 INFO L87 Difference]: Start difference. First operand 2274 states and 3223 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:58:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:33,310 INFO L93 Difference]: Finished difference Result 4523 states and 6436 transitions. [2022-07-14 01:58:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 231 [2022-07-14 01:58:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:33,324 INFO L225 Difference]: With dead ends: 4523 [2022-07-14 01:58:33,325 INFO L226 Difference]: Without dead ends: 2276 [2022-07-14 01:58:33,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:33,334 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 1 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:33,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6391 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:58:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-07-14 01:58:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2275. [2022-07-14 01:58:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 1532 states have (on average 1.2930809399477807) internal successors, (1981), 1576 states have internal predecessors, (1981), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-07-14 01:58:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 3224 transitions. [2022-07-14 01:58:33,382 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 3224 transitions. Word has length 231 [2022-07-14 01:58:33,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:33,382 INFO L495 AbstractCegarLoop]: Abstraction has 2275 states and 3224 transitions. [2022-07-14 01:58:33,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:58:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 3224 transitions. [2022-07-14 01:58:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 01:58:33,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:33,388 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:33,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:33,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:33,604 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:33,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash -326695337, now seen corresponding path program 1 times [2022-07-14 01:58:33,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:33,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759730285] [2022-07-14 01:58:33,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:33,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:33,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:33,607 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) [2022-07-14 01:58:33,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 01:58:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:35,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:35,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-14 01:58:35,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:35,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:35,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759730285] [2022-07-14 01:58:35,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759730285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:35,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:35,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898539848] [2022-07-14 01:58:35,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:35,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:35,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:35,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:35,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:35,970 INFO L87 Difference]: Start difference. First operand 2275 states and 3224 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:58:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:36,397 INFO L93 Difference]: Finished difference Result 6426 states and 9103 transitions. [2022-07-14 01:58:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:36,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 239 [2022-07-14 01:58:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:36,416 INFO L225 Difference]: With dead ends: 6426 [2022-07-14 01:58:36,416 INFO L226 Difference]: Without dead ends: 4178 [2022-07-14 01:58:36,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:36,425 INFO L413 NwaCegarLoop]: 3713 mSDtfsCounter, 2776 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 6735 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:36,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 6735 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:58:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-07-14 01:58:36,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 4162. [2022-07-14 01:58:36,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 2795 states have (on average 1.2915921288014311) internal successors, (3610), 2881 states have internal predecessors, (3610), 1131 states have call successors, (1131), 232 states have call predecessors, (1131), 235 states have return successors, (1154), 1105 states have call predecessors, (1154), 1130 states have call successors, (1154) [2022-07-14 01:58:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5895 transitions. [2022-07-14 01:58:36,543 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5895 transitions. Word has length 239 [2022-07-14 01:58:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:36,543 INFO L495 AbstractCegarLoop]: Abstraction has 4162 states and 5895 transitions. [2022-07-14 01:58:36,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:58:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5895 transitions. [2022-07-14 01:58:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-07-14 01:58:36,555 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:36,555 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:36,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:36,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:36,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1204888151, now seen corresponding path program 1 times [2022-07-14 01:58:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:36,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610836402] [2022-07-14 01:58:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:36,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:36,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:36,788 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) [2022-07-14 01:58:36,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 01:58:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:39,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:39,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-14 01:58:39,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:39,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:39,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610836402] [2022-07-14 01:58:39,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610836402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:39,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:39,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:39,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672756448] [2022-07-14 01:58:39,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:39,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:39,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:39,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:39,537 INFO L87 Difference]: Start difference. First operand 4162 states and 5895 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:39,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:39,948 INFO L93 Difference]: Finished difference Result 12386 states and 17596 transitions. [2022-07-14 01:58:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:39,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 360 [2022-07-14 01:58:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:40,002 INFO L225 Difference]: With dead ends: 12386 [2022-07-14 01:58:40,003 INFO L226 Difference]: Without dead ends: 8251 [2022-07-14 01:58:40,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:40,024 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 3147 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:40,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 6979 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:58:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8251 states. [2022-07-14 01:58:40,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8251 to 8248. [2022-07-14 01:58:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 5536 states have (on average 1.2922687861271676) internal successors, (7154), 5713 states have internal predecessors, (7154), 2247 states have call successors, (2247), 462 states have call predecessors, (2247), 464 states have return successors, (2302), 2186 states have call predecessors, (2302), 2246 states have call successors, (2302) [2022-07-14 01:58:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11703 transitions. [2022-07-14 01:58:40,268 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11703 transitions. Word has length 360 [2022-07-14 01:58:40,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:40,269 INFO L495 AbstractCegarLoop]: Abstraction has 8248 states and 11703 transitions. [2022-07-14 01:58:40,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11703 transitions. [2022-07-14 01:58:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-14 01:58:40,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:40,282 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:40,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:40,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:40,496 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:40,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:40,496 INFO L85 PathProgramCache]: Analyzing trace with hash 71382096, now seen corresponding path program 1 times [2022-07-14 01:58:40,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:40,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934013635] [2022-07-14 01:58:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:40,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:40,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:40,499 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) [2022-07-14 01:58:40,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 01:58:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:42,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:42,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-14 01:58:42,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:42,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:42,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934013635] [2022-07-14 01:58:42,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934013635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:42,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:42,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:42,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563612267] [2022-07-14 01:58:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:42,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:42,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:42,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:42,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:42,941 INFO L87 Difference]: Start difference. First operand 8248 states and 11703 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:43,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:43,384 INFO L93 Difference]: Finished difference Result 20588 states and 29255 transitions. [2022-07-14 01:58:43,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:43,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 361 [2022-07-14 01:58:43,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:43,429 INFO L225 Difference]: With dead ends: 20588 [2022-07-14 01:58:43,430 INFO L226 Difference]: Without dead ends: 12367 [2022-07-14 01:58:43,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:43,454 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 3173 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:43,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 6960 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:58:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-07-14 01:58:43,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 12364. [2022-07-14 01:58:43,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12364 states, 8303 states have (on average 1.291340479344815) internal successors, (10722), 8566 states have internal predecessors, (10722), 3362 states have call successors, (3362), 692 states have call predecessors, (3362), 698 states have return successors, (3459), 3276 states have call predecessors, (3459), 3361 states have call successors, (3459) [2022-07-14 01:58:43,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 17543 transitions. [2022-07-14 01:58:43,767 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 17543 transitions. Word has length 361 [2022-07-14 01:58:43,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:43,768 INFO L495 AbstractCegarLoop]: Abstraction has 12364 states and 17543 transitions. [2022-07-14 01:58:43,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 17543 transitions. [2022-07-14 01:58:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-14 01:58:43,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:43,786 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:43,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:44,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:44,012 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:44,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:44,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1100248334, now seen corresponding path program 1 times [2022-07-14 01:58:44,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:44,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905634871] [2022-07-14 01:58:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:44,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:44,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:44,022 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) [2022-07-14 01:58:44,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 01:58:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:46,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:46,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-14 01:58:46,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:46,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:46,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905634871] [2022-07-14 01:58:46,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905634871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:46,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:46,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:46,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142270224] [2022-07-14 01:58:46,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:46,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:46,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:46,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:46,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:46,521 INFO L87 Difference]: Start difference. First operand 12364 states and 17543 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:47,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:47,355 INFO L93 Difference]: Finished difference Result 28816 states and 40937 transitions. [2022-07-14 01:58:47,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:47,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 356 [2022-07-14 01:58:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:47,426 INFO L225 Difference]: With dead ends: 28816 [2022-07-14 01:58:47,426 INFO L226 Difference]: Without dead ends: 16479 [2022-07-14 01:58:47,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:47,474 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 3174 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:47,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3174 Valid, 6960 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:58:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16479 states. [2022-07-14 01:58:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16479 to 16476. [2022-07-14 01:58:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16476 states, 11069 states have (on average 1.290721835757521) internal successors, (14287), 11418 states have internal predecessors, (14287), 4474 states have call successors, (4474), 922 states have call predecessors, (4474), 932 states have return successors, (4613), 4363 states have call predecessors, (4613), 4473 states have call successors, (4613) [2022-07-14 01:58:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16476 states to 16476 states and 23374 transitions. [2022-07-14 01:58:47,916 INFO L78 Accepts]: Start accepts. Automaton has 16476 states and 23374 transitions. Word has length 356 [2022-07-14 01:58:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:47,917 INFO L495 AbstractCegarLoop]: Abstraction has 16476 states and 23374 transitions. [2022-07-14 01:58:47,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 16476 states and 23374 transitions. [2022-07-14 01:58:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-07-14 01:58:47,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:47,938 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:48,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:48,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:48,164 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:48,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:48,164 INFO L85 PathProgramCache]: Analyzing trace with hash -911585011, now seen corresponding path program 1 times [2022-07-14 01:58:48,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:48,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843215500] [2022-07-14 01:58:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:48,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:48,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:48,168 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) [2022-07-14 01:58:48,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 01:58:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:50,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:50,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-14 01:58:50,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:50,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:50,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843215500] [2022-07-14 01:58:50,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843215500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:50,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:50,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143455439] [2022-07-14 01:58:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:50,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:50,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:50,769 INFO L87 Difference]: Start difference. First operand 16476 states and 23374 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-14 01:58:51,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:51,293 INFO L93 Difference]: Finished difference Result 32909 states and 46689 transitions. [2022-07-14 01:58:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:51,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 428 [2022-07-14 01:58:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:51,359 INFO L225 Difference]: With dead ends: 32909 [2022-07-14 01:58:51,359 INFO L226 Difference]: Without dead ends: 16460 [2022-07-14 01:58:51,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:51,410 INFO L413 NwaCegarLoop]: 3194 mSDtfsCounter, 3183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:51,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 3194 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:58:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16460 states. [2022-07-14 01:58:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16460 to 16460. [2022-07-14 01:58:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16460 states, 11061 states have (on average 1.2902088418768647) internal successors, (14271), 11410 states have internal predecessors, (14271), 4466 states have call successors, (4466), 922 states have call predecessors, (4466), 932 states have return successors, (4605), 4355 states have call predecessors, (4605), 4465 states have call successors, (4605) [2022-07-14 01:58:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16460 states to 16460 states and 23342 transitions. [2022-07-14 01:58:52,045 INFO L78 Accepts]: Start accepts. Automaton has 16460 states and 23342 transitions. Word has length 428 [2022-07-14 01:58:52,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:52,046 INFO L495 AbstractCegarLoop]: Abstraction has 16460 states and 23342 transitions. [2022-07-14 01:58:52,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-14 01:58:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 16460 states and 23342 transitions. [2022-07-14 01:58:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-14 01:58:52,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:52,061 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:52,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:52,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:52,288 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:52,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:52,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2132796789, now seen corresponding path program 1 times [2022-07-14 01:58:52,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043436505] [2022-07-14 01:58:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:52,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:52,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:52,324 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) [2022-07-14 01:58:52,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 01:58:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:54,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:58:54,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:58:54,854 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-14 01:58:54,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:58:54,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:58:54,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043436505] [2022-07-14 01:58:54,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043436505] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:58:54,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:58:54,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:58:54,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956469021] [2022-07-14 01:58:54,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:58:54,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:58:54,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:58:54,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:58:54,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:54,857 INFO L87 Difference]: Start difference. First operand 16460 states and 23342 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:55,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:58:55,631 INFO L93 Difference]: Finished difference Result 36990 states and 52519 transitions. [2022-07-14 01:58:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:58:55,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 357 [2022-07-14 01:58:55,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:58:55,804 INFO L225 Difference]: With dead ends: 36990 [2022-07-14 01:58:55,805 INFO L226 Difference]: Without dead ends: 20557 [2022-07-14 01:58:55,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:58:55,855 INFO L413 NwaCegarLoop]: 3792 mSDtfsCounter, 3171 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:58:55,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 6951 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:58:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20557 states. [2022-07-14 01:58:56,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20557 to 20554. [2022-07-14 01:58:56,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20554 states, 13818 states have (on average 1.2898393399913157) internal successors, (17823), 14253 states have internal predecessors, (17823), 5571 states have call successors, (5571), 1150 states have call predecessors, (5571), 1164 states have return successors, (5752), 5435 states have call predecessors, (5752), 5570 states have call successors, (5752) [2022-07-14 01:58:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20554 states to 20554 states and 29146 transitions. [2022-07-14 01:58:56,497 INFO L78 Accepts]: Start accepts. Automaton has 20554 states and 29146 transitions. Word has length 357 [2022-07-14 01:58:56,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:58:56,497 INFO L495 AbstractCegarLoop]: Abstraction has 20554 states and 29146 transitions. [2022-07-14 01:58:56,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 01:58:56,498 INFO L276 IsEmpty]: Start isEmpty. Operand 20554 states and 29146 transitions. [2022-07-14 01:58:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-14 01:58:56,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:58:56,521 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:58:56,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 01:58:56,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:58:56,736 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:58:56,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:58:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1519245808, now seen corresponding path program 1 times [2022-07-14 01:58:56,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:58:56,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125550162] [2022-07-14 01:58:56,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:58:56,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:58:56,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:58:56,740 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) [2022-07-14 01:58:56,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 01:58:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:58:59,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 01:58:59,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:59:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-14 01:59:01,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:59:01,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:59:01,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125550162] [2022-07-14 01:59:01,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125550162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:59:01,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:59:01,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:59:01,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268462270] [2022-07-14 01:59:01,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:59:01,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:59:01,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:59:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:59:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:59:01,509 INFO L87 Difference]: Start difference. First operand 20554 states and 29146 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-14 01:59:37,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:59:39,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:59:53,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:59:53,566 INFO L93 Difference]: Finished difference Result 73875 states and 105893 transitions. [2022-07-14 01:59:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 01:59:53,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) Word has length 386 [2022-07-14 01:59:53,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:59:53,878 INFO L225 Difference]: With dead ends: 73875 [2022-07-14 01:59:53,878 INFO L226 Difference]: Without dead ends: 53348 [2022-07-14 01:59:53,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:59:53,969 INFO L413 NwaCegarLoop]: 4678 mSDtfsCounter, 5519 mSDsluCounter, 3976 mSDsCounter, 0 mSdLazyCounter, 8396 mSolverCounterSat, 3638 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 8654 SdHoareTripleChecker+Invalid, 12036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3638 IncrementalHoareTripleChecker+Valid, 8396 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:59:53,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6110 Valid, 8654 Invalid, 12036 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3638 Valid, 8396 Invalid, 2 Unknown, 0 Unchecked, 49.8s Time] [2022-07-14 01:59:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53348 states. [2022-07-14 01:59:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53348 to 52992. [2022-07-14 01:59:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52992 states, 34906 states have (on average 1.2775454076663038) internal successors, (44594), 36138 states have internal predecessors, (44594), 15024 states have call successors, (15024), 2868 states have call predecessors, (15024), 3061 states have return successors, (16276), 14855 states have call predecessors, (16276), 15023 states have call successors, (16276) [2022-07-14 01:59:56,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52992 states to 52992 states and 75894 transitions. [2022-07-14 01:59:56,325 INFO L78 Accepts]: Start accepts. Automaton has 52992 states and 75894 transitions. Word has length 386 [2022-07-14 01:59:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:59:56,328 INFO L495 AbstractCegarLoop]: Abstraction has 52992 states and 75894 transitions. [2022-07-14 01:59:56,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-07-14 01:59:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 52992 states and 75894 transitions. [2022-07-14 01:59:56,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-07-14 01:59:56,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:59:56,370 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:59:56,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 01:59:56,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:59:56,596 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:59:56,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:59:56,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1893039527, now seen corresponding path program 1 times [2022-07-14 01:59:56,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:59:56,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035510164] [2022-07-14 01:59:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:59:56,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:59:56,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:59:56,685 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) [2022-07-14 01:59:56,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 01:59:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:59:59,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 3137 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:59:59,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:59:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-14 01:59:59,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:59:59,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:59:59,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035510164] [2022-07-14 01:59:59,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035510164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:59:59,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:59:59,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:59:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895104079] [2022-07-14 01:59:59,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:59:59,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:59:59,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:59:59,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:59:59,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:59:59,893 INFO L87 Difference]: Start difference. First operand 52992 states and 75894 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-14 02:00:01,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:00:01,606 INFO L93 Difference]: Finished difference Result 105917 states and 151663 transitions. [2022-07-14 02:00:01,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:00:01,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 475 [2022-07-14 02:00:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:00:02,007 INFO L225 Difference]: With dead ends: 105917 [2022-07-14 02:00:02,007 INFO L226 Difference]: Without dead ends: 52952 [2022-07-14 02:00:02,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:00:02,180 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 3138 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:00:02,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 3190 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:00:02,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52952 states. [2022-07-14 02:00:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52952 to 52952. [2022-07-14 02:00:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52952 states, 34886 states have (on average 1.2771312274264748) internal successors, (44554), 36118 states have internal predecessors, (44554), 15004 states have call successors, (15004), 2868 states have call predecessors, (15004), 3061 states have return successors, (16226), 14835 states have call predecessors, (16226), 15003 states have call successors, (16226) [2022-07-14 02:00:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52952 states to 52952 states and 75784 transitions. [2022-07-14 02:00:04,088 INFO L78 Accepts]: Start accepts. Automaton has 52952 states and 75784 transitions. Word has length 475 [2022-07-14 02:00:04,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:00:04,089 INFO L495 AbstractCegarLoop]: Abstraction has 52952 states and 75784 transitions. [2022-07-14 02:00:04,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-14 02:00:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 52952 states and 75784 transitions. [2022-07-14 02:00:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-07-14 02:00:04,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:00:04,143 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:00:04,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 02:00:04,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:00:04,361 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:00:04,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:00:04,361 INFO L85 PathProgramCache]: Analyzing trace with hash -642016824, now seen corresponding path program 1 times [2022-07-14 02:00:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:00:04,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712580558] [2022-07-14 02:00:04,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:00:04,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:00:04,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:00:04,367 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) [2022-07-14 02:00:04,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 02:00:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:00:07,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 3135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:00:07,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:00:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-14 02:00:08,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:00:08,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:00:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712580558] [2022-07-14 02:00:08,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712580558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:00:08,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:00:08,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:00:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061092297] [2022-07-14 02:00:08,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:00:08,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:00:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:00:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:00:08,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:00:08,032 INFO L87 Difference]: Start difference. First operand 52952 states and 75784 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-14 02:00:09,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:00:09,822 INFO L93 Difference]: Finished difference Result 105837 states and 151443 transitions. [2022-07-14 02:00:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:00:09,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 474 [2022-07-14 02:00:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:00:10,290 INFO L225 Difference]: With dead ends: 105837 [2022-07-14 02:00:10,290 INFO L226 Difference]: Without dead ends: 52912 [2022-07-14 02:00:10,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:00:10,441 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 3135 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3135 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:00:10,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3135 Valid, 3186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:00:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52912 states. [2022-07-14 02:00:12,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52912 to 52912. [2022-07-14 02:00:12,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52912 states, 34866 states have (on average 1.2767165720185853) internal successors, (44514), 36098 states have internal predecessors, (44514), 14984 states have call successors, (14984), 2868 states have call predecessors, (14984), 3061 states have return successors, (16176), 14815 states have call predecessors, (16176), 14983 states have call successors, (16176) [2022-07-14 02:00:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52912 states to 52912 states and 75674 transitions. [2022-07-14 02:00:12,754 INFO L78 Accepts]: Start accepts. Automaton has 52912 states and 75674 transitions. Word has length 474 [2022-07-14 02:00:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:00:12,755 INFO L495 AbstractCegarLoop]: Abstraction has 52912 states and 75674 transitions. [2022-07-14 02:00:12,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-07-14 02:00:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 52912 states and 75674 transitions. [2022-07-14 02:00:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-07-14 02:00:12,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:00:12,813 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 02:00:12,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-14 02:00:13,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:00:13,030 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:00:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:00:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash 402344649, now seen corresponding path program 1 times [2022-07-14 02:00:13,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:00:13,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520064457] [2022-07-14 02:00:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:00:13,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:00:13,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:00:13,034 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) [2022-07-14 02:00:13,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 02:00:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:00:16,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2981 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-14 02:00:16,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:00:18,306 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-07-14 02:00:18,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:00:18,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:00:18,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520064457] [2022-07-14 02:00:18,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520064457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:00:18,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:00:18,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 02:00:18,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685891810] [2022-07-14 02:00:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:00:18,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 02:00:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:00:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 02:00:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:00:18,308 INFO L87 Difference]: Start difference. First operand 52912 states and 75674 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 7 states have internal predecessors, (194), 5 states have call successors, (50), 4 states have call predecessors, (50), 5 states have return successors, (44), 6 states have call predecessors, (44), 5 states have call successors, (44) [2022-07-14 02:01:28,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:01:30,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:01:32,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:01:34,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:01:36,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:01:38,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 02:01:40,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []