./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.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 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:33:21,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:33:21,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:33:21,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:33:21,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:33:21,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:33:21,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:33:21,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:33:21,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:33:21,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:33:21,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:33:21,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:33:21,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:33:21,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:33:21,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:33:21,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:33:21,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:33:21,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:33:21,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:33:21,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:33:21,428 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:33:21,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:33:21,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:33:21,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:33:21,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:33:21,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:33:21,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:33:21,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:33:21,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:33:21,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:33:21,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:33:21,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:33:21,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:33:21,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:33:21,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:33:21,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:33:21,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:33:21,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:33:21,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:33:21,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:33:21,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:33:21,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:33:21,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:33:21,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:33:21,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:33:21,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:33:21,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:33:21,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:33:21,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:33:21,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:33:21,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:33:21,477 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:33:21,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:33:21,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:33:21,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:33:21,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:33:21,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:33:21,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:33:21,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:33:21,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:33:21,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:33:21,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:33:21,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:33:21,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:33:21,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:33:21,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:33:21,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:33:21,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:33:21,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:33:21,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:33:21,482 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:33:21,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:33:21,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:33:21,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 [2022-07-12 12:33:21,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:33:21,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:33:21,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:33:21,691 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:33:21,691 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:33:21,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-12 12:33:21,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0857c5b1f/540bc32a289c4da2a50873d8d53dae53/FLAG54e2a3d78 [2022-07-12 12:33:22,427 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:33:22,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-12 12:33:22,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0857c5b1f/540bc32a289c4da2a50873d8d53dae53/FLAG54e2a3d78 [2022-07-12 12:33:22,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0857c5b1f/540bc32a289c4da2a50873d8d53dae53 [2022-07-12 12:33:22,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:33:22,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:33:22,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:33:22,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:33:22,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:33:22,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:33:22" (1/1) ... [2022-07-12 12:33:22,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5430caa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:22, skipping insertion in model container [2022-07-12 12:33:22,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:33:22" (1/1) ... [2022-07-12 12:33:22,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:33:22,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:33:23,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-12 12:33:25,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:33:25,690 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:33:25,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-12 12:33:25,762 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: mii_reg = (unsigned int )mii_reg & 63487U [6591] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 12:33:25,808 INFO L158 Benchmark]: Toolchain (without parser) took 3083.41ms. Allocated memory was 117.4MB in the beginning and 178.3MB in the end (delta: 60.8MB). Free memory was 80.6MB in the beginning and 110.6MB in the end (delta: -30.0MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2022-07-12 12:33:25,809 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:33:25,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3082.09ms. Allocated memory was 117.4MB in the beginning and 178.3MB in the end (delta: 60.8MB). Free memory was 80.6MB in the beginning and 110.6MB in the end (delta: -30.0MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2022-07-12 12:33:25,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3082.09ms. Allocated memory was 117.4MB in the beginning and 178.3MB in the end (delta: 60.8MB). Free memory was 80.6MB in the beginning and 110.6MB in the end (delta: -30.0MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: mii_reg = (unsigned int )mii_reg & 63487U [6591] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: mii_reg = (unsigned int )mii_reg & 63487U [6591]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.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 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:33:27,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:33:27,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:33:27,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:33:27,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:33:27,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:33:27,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:33:27,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:33:27,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:33:27,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:33:27,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:33:27,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:33:27,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:33:27,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:33:27,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:33:27,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:33:27,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:33:27,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:33:27,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:33:27,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:33:27,312 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:33:27,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:33:27,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:33:27,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:33:27,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:33:27,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:33:27,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:33:27,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:33:27,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:33:27,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:33:27,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:33:27,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:33:27,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:33:27,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:33:27,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:33:27,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:33:27,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:33:27,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:33:27,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:33:27,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:33:27,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:33:27,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:33:27,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:33:27,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:33:27,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:33:27,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:33:27,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:33:27,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:33:27,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:33:27,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:33:27,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:33:27,354 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:33:27,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:33:27,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:33:27,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:33:27,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:33:27,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:33:27,355 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:33:27,355 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:33:27,355 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:33:27,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:33:27,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:33:27,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:33:27,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:33:27,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:33:27,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:33:27,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:33:27,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:33:27,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:33:27,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:33:27,357 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:33:27,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:33:27,357 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:33:27,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:33:27,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:33:27,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:33:27,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 [2022-07-12 12:33:27,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:33:27,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:33:27,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:33:27,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:33:27,621 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:33:27,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-12 12:33:27,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99aefeceb/fab458ce2a8e4a94844662249c4e8b56/FLAG458ed1afd [2022-07-12 12:33:28,342 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:33:28,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-12 12:33:28,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99aefeceb/fab458ce2a8e4a94844662249c4e8b56/FLAG458ed1afd [2022-07-12 12:33:28,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99aefeceb/fab458ce2a8e4a94844662249c4e8b56 [2022-07-12 12:33:28,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:33:28,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:33:28,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:33:28,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:33:28,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:33:28,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:33:28" (1/1) ... [2022-07-12 12:33:28,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af6feba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:28, skipping insertion in model container [2022-07-12 12:33:28,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:33:28" (1/1) ... [2022-07-12 12:33:28,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:33:28,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:33:29,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-12 12:33:31,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:33:31,497 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:33:31,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:33:31,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-12 12:33:31,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:33:31,867 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:33:31,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-12 12:33:32,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:33:32,453 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:33:32,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32 WrapperNode [2022-07-12 12:33:32,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:33:32,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:33:32,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:33:32,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:33:32,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,704 INFO L137 Inliner]: procedures = 495, calls = 5164, calls flagged for inlining = 241, calls inlined = 216, statements flattened = 8860 [2022-07-12 12:33:32,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:33:32,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:33:32,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:33:32,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:33:32,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:33:32,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:33:32,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:33:32,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:33:32,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (1/1) ... [2022-07-12 12:33:32,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:33:33,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:33:33,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 12:33:33,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 12:33:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 12:33:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 12:33:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_disable [2022-07-12 12:33:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_disable [2022-07-12 12:33:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_intr [2022-07-12 12:33:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_intr [2022-07-12 12:33:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 12:33:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 12:33:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:33:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_minnow_platform_init [2022-07-12 12:33:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_minnow_platform_init [2022-07-12 12:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_open [2022-07-12 12:33:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_open [2022-07-12 12:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:33:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-12 12:33:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-12 12:33:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-12 12:33:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-12 12:33:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reinit_locked [2022-07-12 12:33:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reinit_locked [2022-07-12 12:33:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_up_phy [2022-07-12 12:33:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_up_phy [2022-07-12 12:33:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_tx_resources [2022-07-12 12:33:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_tx_resources [2022-07-12 12:33:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 12:33:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 12:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:33:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 12:33:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 12:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_netpoll [2022-07-12 12:33:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_netpoll [2022-07-12 12:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_init_hw [2022-07-12 12:33:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_init_hw [2022-07-12 12:33:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_rx_resources [2022-07-12 12:33:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_rx_resources [2022-07-12 12:33:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_tx_resources [2022-07-12 12:33:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_tx_resources [2022-07-12 12:33:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 12:33:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 12:33:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 12:33:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 12:33:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_error_detected [2022-07-12 12:33:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_error_detected [2022-07-12 12:33:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:33:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:33:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-07-12 12:33:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-07-12 12:33:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure pch_set_station_address [2022-07-12 12:33:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_set_station_address [2022-07-12 12:33:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:33:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:33:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_write [2022-07-12 12:33:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_write [2022-07-12 12:33:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 12:33:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 12:33:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 12:33:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 12:33:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 12:33:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 12:33:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-12 12:33:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-12 12:33:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-12 12:33:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:33:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:33:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-12 12:33:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-12 12:33:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:33:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_up [2022-07-12 12:33:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_up [2022-07-12 12:33:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:33:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:33:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:33:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-12 12:33:33,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-12 12:33:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:33:33,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:33:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_resume [2022-07-12 12:33:33,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_resume [2022-07-12 12:33:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 12:33:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 12:33:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_write [2022-07-12 12:33:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_write [2022-07-12 12:33:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-12 12:33:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-12 12:33:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 12:33:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 12:33:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:33:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:33:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:33:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:33:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_enable_dma_rx [2022-07-12 12:33:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_enable_dma_rx [2022-07-12 12:33:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_configure_rx [2022-07-12 12:33:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_configure_rx [2022-07-12 12:33:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_wait_clr_bit [2022-07-12 12:33:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_wait_clr_bit [2022-07-12 12:33:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-07-12 12:33:33,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-07-12 12:33:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:33:33,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:33:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-07-12 12:33:33,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-07-12 12:33:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:33:33,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:33:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2022-07-12 12:33:33,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2022-07-12 12:33:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-12 12:33:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-12 12:33:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 12:33:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 12:33:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_force_mac_fc [2022-07-12 12:33:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_force_mac_fc [2022-07-12 12:33:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_suspend [2022-07-12 12:33:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_suspend [2022-07-12 12:33:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-12 12:33:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-12 12:33:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 12:33:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 12:33:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 12:33:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 12:33:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-07-12 12:33:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-07-12 12:33:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-12 12:33:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-12 12:33:33,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-12 12:33:33,050 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:33:33,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:33:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:33:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:33:33,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:33:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:33:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-12 12:33:33,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-12 12:33:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 12:33:33,051 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 12:33:33,051 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_change_mtu [2022-07-12 12:33:33,051 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_change_mtu [2022-07-12 12:33:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-12 12:33:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-12 12:33:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mac [2022-07-12 12:33:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mac [2022-07-12 12:33:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_set_wol_event [2022-07-12 12:33:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_set_wol_event [2022-07-12 12:33:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:33:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:33:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_ctrl_miim [2022-07-12 12:33:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_ctrl_miim [2022-07-12 12:33:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_regs_len [2022-07-12 12:33:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_regs_len [2022-07-12 12:33:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 12:33:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 12:33:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:33:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-12 12:33:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-12 12:33:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_features [2022-07-12 12:33:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_features [2022-07-12 12:33:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:33:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:33:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_alloc_rx_buffers [2022-07-12 12:33:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_alloc_rx_buffers [2022-07-12 12:33:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2022-07-12 12:33:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2022-07-12 12:33:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-12 12:33:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-12 12:33:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:33:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_get_bus_info [2022-07-12 12:33:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_get_bus_info [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 12:33:33,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_down [2022-07-12 12:33:33,055 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_down [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:33:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:33:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:33:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:33:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-07-12 12:33:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-07-12 12:33:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_update_stats [2022-07-12 12:33:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_update_stats [2022-07-12 12:33:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 12:33:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 12:33:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:33:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:33:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-07-12 12:33:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-07-12 12:33:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum [2022-07-12 12:33:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum [2022-07-12 12:33:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_read [2022-07-12 12:33:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_read [2022-07-12 12:33:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_rx_ring [2022-07-12 12:33:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_rx_ring [2022-07-12 12:33:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-12 12:33:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-12 12:33:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_up [2022-07-12 12:33:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_up [2022-07-12 12:33:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:33:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:33:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:33:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:33:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 12:33:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 12:33:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-07-12 12:33:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-07-12 12:33:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-12 12:33:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-12 12:33:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_tx_ring [2022-07-12 12:33:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_tx_ring [2022-07-12 12:33:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reset [2022-07-12 12:33:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reset [2022-07-12 12:33:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-12 12:33:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-12 12:33:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-12 12:33:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-12 12:33:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2022-07-12 12:33:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2022-07-12 12:33:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:33:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2022-07-12 12:33:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2022-07-12 12:33:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-12 12:33:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-12 12:33:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-12 12:33:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-12 12:33:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 12:33:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 12:33:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:33:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-12 12:33:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-12 12:33:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_resume [2022-07-12 12:33:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_resume [2022-07-12 12:33:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-07-12 12:33:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-07-12 12:33:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_read [2022-07-12 12:33:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_read [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 12:33:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 12:33:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_nway_reset [2022-07-12 12:33:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_nway_reset [2022-07-12 12:33:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:33:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:33:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 12:33:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 12:33:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_enable [2022-07-12 12:33:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_enable [2022-07-12 12:33:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:33:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:33:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 12:33:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 12:33:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_hw_reset [2022-07-12 12:33:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_hw_reset [2022-07-12 12:33:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_tx_timeout [2022-07-12 12:33:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_tx_timeout [2022-07-12 12:33:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-07-12 12:33:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-07-12 12:33:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:33:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:33:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-07-12 12:33:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-07-12 12:33:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2022-07-12 12:33:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2022-07-12 12:33:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 12:33:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 12:33:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mode [2022-07-12 12:33:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mode [2022-07-12 12:33:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 12:33:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 12:33:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rx_resources [2022-07-12 12:33:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rx_resources [2022-07-12 12:33:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-12 12:33:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-12 12:33:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:33:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:33:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-07-12 12:33:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-07-12 12:33:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:33:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:33:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_validate_option [2022-07-12 12:33:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_validate_option [2022-07-12 12:33:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_reset_hw [2022-07-12 12:33:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_reset_hw [2022-07-12 12:33:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure udp_hdr [2022-07-12 12:33:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure udp_hdr [2022-07-12 12:33:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rctl [2022-07-12 12:33:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rctl [2022-07-12 12:33:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:33:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_sw_reset [2022-07-12 12:33:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_sw_reset [2022-07-12 12:33:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:33:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:33:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:33:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:33:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:33:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_74 [2022-07-12 12:33:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_74 [2022-07-12 12:33:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_ioctl [2022-07-12 12:33:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_ioctl [2022-07-12 12:33:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2022-07-12 12:33:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2022-07-12 12:33:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_write_reg_miic [2022-07-12 12:33:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_write_reg_miic [2022-07-12 12:33:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 12:33:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 12:33:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 12:33:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 12:33:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_control_write [2022-07-12 12:33:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_control_write [2022-07-12 12:33:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_multi [2022-07-12 12:33:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_multi [2022-07-12 12:33:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2022-07-12 12:33:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2022-07-12 12:33:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 12:33:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 12:33:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 12:33:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 12:33:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:33:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:33:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_read_reg_miic [2022-07-12 12:33:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_read_reg_miic [2022-07-12 12:33:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_read_mac_addr [2022-07-12 12:33:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_read_mac_addr [2022-07-12 12:33:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_rgmii_ctrl [2022-07-12 12:33:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_rgmii_ctrl [2022-07-12 12:33:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-07-12 12:33:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-07-12 12:33:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_stats [2022-07-12 12:33:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_stats [2022-07-12 12:33:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_down [2022-07-12 12:33:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_down [2022-07-12 12:33:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_irq [2022-07-12 12:33:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_irq [2022-07-12 12:33:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_mar_set [2022-07-12 12:33:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_mar_set [2022-07-12 12:33:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_slot_reset [2022-07-12 12:33:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_slot_reset [2022-07-12 12:33:34,032 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:33:34,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:33:35,044 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:35:23,924 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:35:23,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:35:23,943 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-12 12:35:23,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:35:23 BoogieIcfgContainer [2022-07-12 12:35:23,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:35:23,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:35:23,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:35:23,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:35:23,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:33:28" (1/3) ... [2022-07-12 12:35:23,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc6cab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:35:23, skipping insertion in model container [2022-07-12 12:35:23,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:33:32" (2/3) ... [2022-07-12 12:35:23,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc6cab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:35:23, skipping insertion in model container [2022-07-12 12:35:23,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:35:23" (3/3) ... [2022-07-12 12:35:23,958 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-12 12:35:23,968 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:35:23,968 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:35:24,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:35:24,100 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@7ab9a1d4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5825a386 [2022-07-12 12:35:24,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:35:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 2973 states, 2076 states have (on average 1.3381502890173411) internal successors, (2778), 2135 states have internal predecessors, (2778), 738 states have call successors, (738), 159 states have call predecessors, (738), 158 states have return successors, (726), 707 states have call predecessors, (726), 726 states have call successors, (726) [2022-07-12 12:35:24,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 12:35:24,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:24,125 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-12 12:35:24,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1791158106, now seen corresponding path program 1 times [2022-07-12 12:35:24,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:24,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131669465] [2022-07-12 12:35:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:24,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:24,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:24,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:24,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:35:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:27,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 3521 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:35:27,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-12 12:35:27,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:35:27,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:27,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131669465] [2022-07-12 12:35:27,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131669465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:35:27,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:35:27,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:35:27,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684380094] [2022-07-12 12:35:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:35:27,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:35:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:27,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:35:27,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:35:27,339 INFO L87 Difference]: Start difference. First operand has 2973 states, 2076 states have (on average 1.3381502890173411) internal successors, (2778), 2135 states have internal predecessors, (2778), 738 states have call successors, (738), 159 states have call predecessors, (738), 158 states have return successors, (726), 707 states have call predecessors, (726), 726 states have call successors, (726) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 12:35:27,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:35:27,877 INFO L93 Difference]: Finished difference Result 5941 states and 8622 transitions. [2022-07-12 12:35:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:35:27,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-07-12 12:35:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:35:27,906 INFO L225 Difference]: With dead ends: 5941 [2022-07-12 12:35:27,906 INFO L226 Difference]: Without dead ends: 2946 [2022-07-12 12:35:27,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:35:27,926 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 2 mSDsluCounter, 8429 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12648 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:35:27,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12648 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 12:35:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2022-07-12 12:35:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2022-07-12 12:35:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2062 states have (on average 1.3258971871968963) internal successors, (2734), 2107 states have internal predecessors, (2734), 725 states have call successors, (725), 158 states have call predecessors, (725), 158 states have return successors, (728), 705 states have call predecessors, (728), 724 states have call successors, (728) [2022-07-12 12:35:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4187 transitions. [2022-07-12 12:35:28,091 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4187 transitions. Word has length 67 [2022-07-12 12:35:28,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:35:28,091 INFO L495 AbstractCegarLoop]: Abstraction has 2946 states and 4187 transitions. [2022-07-12 12:35:28,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 12:35:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4187 transitions. [2022-07-12 12:35:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 12:35:28,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:28,096 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-12 12:35:28,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:35:28,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:35:28,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1276349690, now seen corresponding path program 1 times [2022-07-12 12:35:28,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:28,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372544109] [2022-07-12 12:35:28,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:28,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:28,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:28,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:28,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:35:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:31,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:35:31,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-12 12:35:31,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:35:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-12 12:35:32,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:32,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372544109] [2022-07-12 12:35:32,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372544109] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:35:32,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:35:32,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 12:35:32,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226755943] [2022-07-12 12:35:32,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:35:32,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:35:32,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:32,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:35:32,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:35:32,088 INFO L87 Difference]: Start difference. First operand 2946 states and 4187 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 12:35:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:35:33,765 INFO L93 Difference]: Finished difference Result 5888 states and 8381 transitions. [2022-07-12 12:35:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 12:35:33,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2022-07-12 12:35:33,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:35:33,785 INFO L225 Difference]: With dead ends: 5888 [2022-07-12 12:35:33,786 INFO L226 Difference]: Without dead ends: 2957 [2022-07-12 12:35:33,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-12 12:35:33,799 INFO L413 NwaCegarLoop]: 4173 mSDtfsCounter, 12 mSDsluCounter, 16663 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:35:33,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20836 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 12:35:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-07-12 12:35:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2955. [2022-07-12 12:35:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2070 states have (on average 1.327536231884058) internal successors, (2748), 2115 states have internal predecessors, (2748), 725 states have call successors, (725), 159 states have call predecessors, (725), 159 states have return successors, (732), 705 states have call predecessors, (732), 724 states have call successors, (732) [2022-07-12 12:35:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4205 transitions. [2022-07-12 12:35:33,876 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 4205 transitions. Word has length 69 [2022-07-12 12:35:33,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:35:33,876 INFO L495 AbstractCegarLoop]: Abstraction has 2955 states and 4205 transitions. [2022-07-12 12:35:33,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 12:35:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 4205 transitions. [2022-07-12 12:35:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 12:35:33,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:33,879 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 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] [2022-07-12 12:35:33,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 12:35:34,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:35:34,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1246096550, now seen corresponding path program 2 times [2022-07-12 12:35:34,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:34,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580030465] [2022-07-12 12:35:34,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:35:34,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:34,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:34,104 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:34,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:35:36,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:35:36,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:35:36,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:35:36,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:37,617 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-07-12 12:35:37,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:35:37,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:37,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580030465] [2022-07-12 12:35:37,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580030465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:35:37,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:35:37,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:35:37,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563863890] [2022-07-12 12:35:37,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:35:37,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:35:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:35:37,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:35:37,622 INFO L87 Difference]: Start difference. First operand 2955 states and 4205 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 12:35:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:35:38,581 INFO L93 Difference]: Finished difference Result 8824 states and 12677 transitions. [2022-07-12 12:35:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:35:38,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-07-12 12:35:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:35:38,615 INFO L225 Difference]: With dead ends: 8824 [2022-07-12 12:35:38,615 INFO L226 Difference]: Without dead ends: 5883 [2022-07-12 12:35:38,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:35:38,632 INFO L413 NwaCegarLoop]: 4974 mSDtfsCounter, 4145 mSDsluCounter, 14150 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 19124 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:35:38,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 19124 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 12:35:38,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2022-07-12 12:35:38,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5877. [2022-07-12 12:35:38,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4117 states have (on average 1.3283944619868837) internal successors, (5469), 4206 states have internal predecessors, (5469), 1442 states have call successors, (1442), 317 states have call predecessors, (1442), 317 states have return successors, (1512), 1403 states have call predecessors, (1512), 1441 states have call successors, (1512) [2022-07-12 12:35:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8423 transitions. [2022-07-12 12:35:38,823 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8423 transitions. Word has length 73 [2022-07-12 12:35:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:35:38,824 INFO L495 AbstractCegarLoop]: Abstraction has 5877 states and 8423 transitions. [2022-07-12 12:35:38,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 12:35:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8423 transitions. [2022-07-12 12:35:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2022-07-12 12:35:38,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:38,858 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 11, 11, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:35:38,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:35:39,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:35:39,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:39,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1430131954, now seen corresponding path program 1 times [2022-07-12 12:35:39,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:39,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91993721] [2022-07-12 12:35:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:39,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:39,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:39,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:39,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:35:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:44,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 6683 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 12:35:44,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 70 proven. 10 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-12 12:35:44,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:35:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-12 12:35:46,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:46,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91993721] [2022-07-12 12:35:46,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91993721] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:35:46,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:35:46,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-12 12:35:46,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913510073] [2022-07-12 12:35:46,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:35:46,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 12:35:46,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 12:35:46,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:35:46,735 INFO L87 Difference]: Start difference. First operand 5877 states and 8423 transitions. Second operand has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) [2022-07-12 12:35:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:35:51,523 INFO L93 Difference]: Finished difference Result 11785 states and 16930 transitions. [2022-07-12 12:35:51,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 12:35:51,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) Word has length 730 [2022-07-12 12:35:51,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:35:51,556 INFO L225 Difference]: With dead ends: 11785 [2022-07-12 12:35:51,557 INFO L226 Difference]: Without dead ends: 5921 [2022-07-12 12:35:51,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1446 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-07-12 12:35:51,580 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 46 mSDsluCounter, 20849 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 25025 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:35:51,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 25025 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 12:35:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-07-12 12:35:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5893. [2022-07-12 12:35:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 4131 states have (on average 1.3294601791333818) internal successors, (5492), 4221 states have internal predecessors, (5492), 1442 states have call successors, (1442), 318 states have call predecessors, (1442), 319 states have return successors, (1509), 1403 states have call predecessors, (1509), 1441 states have call successors, (1509) [2022-07-12 12:35:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8443 transitions. [2022-07-12 12:35:51,761 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8443 transitions. Word has length 730 [2022-07-12 12:35:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:35:51,762 INFO L495 AbstractCegarLoop]: Abstraction has 5893 states and 8443 transitions. [2022-07-12 12:35:51,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) [2022-07-12 12:35:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8443 transitions. [2022-07-12 12:35:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2022-07-12 12:35:51,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:51,794 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 20, 20, 12, 12, 12, 10, 10, 10, 6, 6, 6, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:35:51,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:35:52,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:35:52,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:52,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1482013768, now seen corresponding path program 1 times [2022-07-12 12:35:52,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:52,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94417481] [2022-07-12 12:35:52,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:52,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:52,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:52,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:52,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:35:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:57,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 6814 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 12:35:57,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:57,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 241 proven. 3 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2022-07-12 12:35:57,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:35:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 29 proven. 23 refuted. 0 times theorem prover too weak. 1961 trivial. 0 not checked. [2022-07-12 12:35:59,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:59,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94417481] [2022-07-12 12:35:59,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94417481] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:35:59,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:35:59,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-12 12:35:59,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141885689] [2022-07-12 12:35:59,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:35:59,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:35:59,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:35:59,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:35:59,356 INFO L87 Difference]: Start difference. First operand 5893 states and 8443 transitions. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) [2022-07-12 12:36:01,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:01,100 INFO L93 Difference]: Finished difference Result 11797 states and 16917 transitions. [2022-07-12 12:36:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:36:01,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) Word has length 828 [2022-07-12 12:36:01,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:01,131 INFO L225 Difference]: With dead ends: 11797 [2022-07-12 12:36:01,132 INFO L226 Difference]: Without dead ends: 5923 [2022-07-12 12:36:01,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1660 GetRequests, 1646 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-07-12 12:36:01,154 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 42 mSDsluCounter, 12507 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16681 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:01,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 16681 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 12:36:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2022-07-12 12:36:01,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5893. [2022-07-12 12:36:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 4132 states have (on average 1.3284123910939012) internal successors, (5489), 4220 states have internal predecessors, (5489), 1442 states have call successors, (1442), 319 states have call predecessors, (1442), 318 states have return successors, (1500), 1403 states have call predecessors, (1500), 1441 states have call successors, (1500) [2022-07-12 12:36:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8431 transitions. [2022-07-12 12:36:01,314 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8431 transitions. Word has length 828 [2022-07-12 12:36:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:01,315 INFO L495 AbstractCegarLoop]: Abstraction has 5893 states and 8431 transitions. [2022-07-12 12:36:01,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) [2022-07-12 12:36:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8431 transitions. [2022-07-12 12:36:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2022-07-12 12:36:01,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:01,337 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 20, 20, 12, 12, 12, 12, 10, 10, 6, 6, 6, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:36:01,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:01,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:01,563 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:01,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash 212023624, now seen corresponding path program 2 times [2022-07-12 12:36:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:01,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196734917] [2022-07-12 12:36:01,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:36:01,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:01,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:01,570 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:36:01,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:36:04,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:36:04,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:36:04,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 3481 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:36:04,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-07-12 12:36:05,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:05,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:05,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196734917] [2022-07-12 12:36:05,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196734917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:05,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:05,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:36:05,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823229887] [2022-07-12 12:36:05,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:05,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:36:05,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:05,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:36:05,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:36:05,080 INFO L87 Difference]: Start difference. First operand 5893 states and 8431 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) [2022-07-12 12:36:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:05,484 INFO L93 Difference]: Finished difference Result 11759 states and 17033 transitions. [2022-07-12 12:36:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:36:05,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) Word has length 830 [2022-07-12 12:36:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:05,522 INFO L225 Difference]: With dead ends: 11759 [2022-07-12 12:36:05,523 INFO L226 Difference]: Without dead ends: 5905 [2022-07-12 12:36:05,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:36:05,546 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 2 mSDsluCounter, 12506 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16684 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:05,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16684 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 12:36:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5905 states. [2022-07-12 12:36:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5905 to 5903. [2022-07-12 12:36:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5903 states, 4139 states have (on average 1.327856970282677) internal successors, (5496), 4228 states have internal predecessors, (5496), 1442 states have call successors, (1442), 319 states have call predecessors, (1442), 321 states have return successors, (1542), 1405 states have call predecessors, (1542), 1441 states have call successors, (1542) [2022-07-12 12:36:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5903 states to 5903 states and 8480 transitions. [2022-07-12 12:36:05,759 INFO L78 Accepts]: Start accepts. Automaton has 5903 states and 8480 transitions. Word has length 830 [2022-07-12 12:36:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:05,761 INFO L495 AbstractCegarLoop]: Abstraction has 5903 states and 8480 transitions. [2022-07-12 12:36:05,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) [2022-07-12 12:36:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5903 states and 8480 transitions. [2022-07-12 12:36:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-07-12 12:36:05,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:05,781 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 12, 12, 12, 11, 11, 11, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:36:05,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:05,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:05,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:05,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:05,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1701709889, now seen corresponding path program 1 times [2022-07-12 12:36:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:06,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053199012] [2022-07-12 12:36:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:06,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:06,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:06,001 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:36:06,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:36:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:11,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 6795 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:36:11,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-07-12 12:36:12,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:12,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:12,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053199012] [2022-07-12 12:36:12,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053199012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:12,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:12,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:36:12,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145183309] [2022-07-12 12:36:12,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:12,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:36:12,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:12,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:36:12,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:12,140 INFO L87 Difference]: Start difference. First operand 5903 states and 8480 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-07-12 12:36:13,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:13,060 INFO L93 Difference]: Finished difference Result 17083 states and 24440 transitions. [2022-07-12 12:36:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:36:13,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 772 [2022-07-12 12:36:13,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:13,116 INFO L225 Difference]: With dead ends: 17083 [2022-07-12 12:36:13,116 INFO L226 Difference]: Without dead ends: 11219 [2022-07-12 12:36:13,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:13,140 INFO L413 NwaCegarLoop]: 4825 mSDtfsCounter, 3744 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:13,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 8928 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 12:36:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-07-12 12:36:13,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 11207. [2022-07-12 12:36:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11207 states, 7836 states have (on average 1.3237621235324144) internal successors, (10373), 8004 states have internal predecessors, (10373), 2734 states have call successors, (2734), 631 states have call predecessors, (2734), 636 states have return successors, (2898), 2659 states have call predecessors, (2898), 2733 states have call successors, (2898) [2022-07-12 12:36:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11207 states to 11207 states and 16005 transitions. [2022-07-12 12:36:13,508 INFO L78 Accepts]: Start accepts. Automaton has 11207 states and 16005 transitions. Word has length 772 [2022-07-12 12:36:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:13,510 INFO L495 AbstractCegarLoop]: Abstraction has 11207 states and 16005 transitions. [2022-07-12 12:36:13,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-07-12 12:36:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 11207 states and 16005 transitions. [2022-07-12 12:36:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-07-12 12:36:13,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:13,543 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 12, 11, 11, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:36:13,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:13,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:13,772 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:13,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:13,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1021734738, now seen corresponding path program 1 times [2022-07-12 12:36:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:13,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083395208] [2022-07-12 12:36:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:13,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:13,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:13,778 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) [2022-07-12 12:36:13,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:36:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:19,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 6775 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:36:19,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-07-12 12:36:19,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:20,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:20,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083395208] [2022-07-12 12:36:20,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083395208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:20,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:20,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:36:20,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975163942] [2022-07-12 12:36:20,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:20,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:36:20,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:36:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:20,002 INFO L87 Difference]: Start difference. First operand 11207 states and 16005 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-07-12 12:36:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:21,415 INFO L93 Difference]: Finished difference Result 31691 states and 45377 transitions. [2022-07-12 12:36:21,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:36:21,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 743 [2022-07-12 12:36:21,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:21,498 INFO L225 Difference]: With dead ends: 31691 [2022-07-12 12:36:21,498 INFO L226 Difference]: Without dead ends: 20523 [2022-07-12 12:36:21,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:21,534 INFO L413 NwaCegarLoop]: 4802 mSDtfsCounter, 3542 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:21,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 8852 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 12:36:21,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20523 states. [2022-07-12 12:36:22,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20523 to 20487. [2022-07-12 12:36:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20487 states, 14340 states have (on average 1.3233612273361228) internal successors, (18977), 14668 states have internal predecessors, (18977), 4968 states have call successors, (4968), 1171 states have call predecessors, (4968), 1178 states have return successors, (5446), 4815 states have call predecessors, (5446), 4967 states have call successors, (5446) [2022-07-12 12:36:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20487 states to 20487 states and 29391 transitions. [2022-07-12 12:36:22,435 INFO L78 Accepts]: Start accepts. Automaton has 20487 states and 29391 transitions. Word has length 743 [2022-07-12 12:36:22,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:22,436 INFO L495 AbstractCegarLoop]: Abstraction has 20487 states and 29391 transitions. [2022-07-12 12:36:22,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-07-12 12:36:22,436 INFO L276 IsEmpty]: Start isEmpty. Operand 20487 states and 29391 transitions. [2022-07-12 12:36:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2022-07-12 12:36:22,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:22,460 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 21, 21, 18, 18, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:36:22,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:22,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:22,680 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:22,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:22,681 INFO L85 PathProgramCache]: Analyzing trace with hash -6334035, now seen corresponding path program 1 times [2022-07-12 12:36:22,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:22,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364156618] [2022-07-12 12:36:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:22,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:22,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:22,696 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) [2022-07-12 12:36:22,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:36:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:28,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 6711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:36:28,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:28,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2715 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2685 trivial. 0 not checked. [2022-07-12 12:36:28,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:28,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:28,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364156618] [2022-07-12 12:36:28,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364156618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:28,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:28,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:36:28,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767435278] [2022-07-12 12:36:28,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:28,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:36:28,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:28,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:36:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:28,908 INFO L87 Difference]: Start difference. First operand 20487 states and 29391 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-07-12 12:36:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:30,316 INFO L93 Difference]: Finished difference Result 60591 states and 86605 transitions. [2022-07-12 12:36:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:36:30,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 778 [2022-07-12 12:36:30,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:30,642 INFO L225 Difference]: With dead ends: 60591 [2022-07-12 12:36:30,643 INFO L226 Difference]: Without dead ends: 40143 [2022-07-12 12:36:30,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:30,701 INFO L413 NwaCegarLoop]: 4883 mSDtfsCounter, 3981 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 8974 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:30,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 8974 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 12:36:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40143 states. [2022-07-12 12:36:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40143 to 40135. [2022-07-12 12:36:32,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40135 states, 27940 states have (on average 1.3144237652111668) internal successors, (36725), 28592 states have internal predecessors, (36725), 9840 states have call successors, (9840), 2339 states have call predecessors, (9840), 2354 states have return successors, (10692), 9539 states have call predecessors, (10692), 9839 states have call successors, (10692) [2022-07-12 12:36:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40135 states to 40135 states and 57257 transitions. [2022-07-12 12:36:32,429 INFO L78 Accepts]: Start accepts. Automaton has 40135 states and 57257 transitions. Word has length 778 [2022-07-12 12:36:32,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:32,430 INFO L495 AbstractCegarLoop]: Abstraction has 40135 states and 57257 transitions. [2022-07-12 12:36:32,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-07-12 12:36:32,430 INFO L276 IsEmpty]: Start isEmpty. Operand 40135 states and 57257 transitions. [2022-07-12 12:36:32,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-07-12 12:36:32,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:32,465 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 13, 13, 12, 10, 10, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:36:32,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:32,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:32,680 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:32,680 INFO L85 PathProgramCache]: Analyzing trace with hash -42087101, now seen corresponding path program 1 times [2022-07-12 12:36:32,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:32,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149867410] [2022-07-12 12:36:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:32,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:32,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:32,688 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) [2022-07-12 12:36:32,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:36:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:38,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 5635 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:36:38,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-12 12:36:38,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:38,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149867410] [2022-07-12 12:36:38,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149867410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:38,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:38,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:36:38,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597683508] [2022-07-12 12:36:38,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:38,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:36:38,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:36:38,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:38,237 INFO L87 Difference]: Start difference. First operand 40135 states and 57257 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2022-07-12 12:36:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:40,327 INFO L93 Difference]: Finished difference Result 119119 states and 169735 transitions. [2022-07-12 12:36:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:36:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 514 [2022-07-12 12:36:40,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:40,888 INFO L225 Difference]: With dead ends: 119119 [2022-07-12 12:36:40,888 INFO L226 Difference]: Without dead ends: 79023 [2022-07-12 12:36:41,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:41,035 INFO L413 NwaCegarLoop]: 5346 mSDtfsCounter, 4047 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4047 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:41,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4047 Valid, 9464 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 12:36:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79023 states. [2022-07-12 12:36:43,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79023 to 79007. [2022-07-12 12:36:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79007 states, 55036 states have (on average 1.3132676793371612) internal successors, (72277), 56328 states have internal predecessors, (72277), 19312 states have call successors, (19312), 4627 states have call predecessors, (19312), 4658 states have return successors, (20916), 18707 states have call predecessors, (20916), 19311 states have call successors, (20916) [2022-07-12 12:36:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79007 states to 79007 states and 112505 transitions. [2022-07-12 12:36:43,714 INFO L78 Accepts]: Start accepts. Automaton has 79007 states and 112505 transitions. Word has length 514 [2022-07-12 12:36:43,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:43,714 INFO L495 AbstractCegarLoop]: Abstraction has 79007 states and 112505 transitions. [2022-07-12 12:36:43,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2022-07-12 12:36:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 79007 states and 112505 transitions. [2022-07-12 12:36:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2022-07-12 12:36:43,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:43,805 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 25, 25, 17, 17, 12, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:36:43,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-12 12:36:44,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:44,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:44,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1112569729, now seen corresponding path program 1 times [2022-07-12 12:36:44,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:44,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537873018] [2022-07-12 12:36:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:44,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:44,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:44,039 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) [2022-07-12 12:36:44,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:36:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:51,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 7889 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:36:51,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 2659 trivial. 0 not checked. [2022-07-12 12:36:51,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:51,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:51,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537873018] [2022-07-12 12:36:51,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537873018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:51,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:51,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:36:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273501213] [2022-07-12 12:36:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:51,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:36:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:36:51,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:51,152 INFO L87 Difference]: Start difference. First operand 79007 states and 112505 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2022-07-12 12:36:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:54,622 INFO L93 Difference]: Finished difference Result 223435 states and 317065 transitions. [2022-07-12 12:36:54,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:36:54,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) Word has length 919 [2022-07-12 12:36:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:55,599 INFO L225 Difference]: With dead ends: 223435 [2022-07-12 12:36:55,600 INFO L226 Difference]: Without dead ends: 144467 [2022-07-12 12:36:55,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:36:55,903 INFO L413 NwaCegarLoop]: 6023 mSDtfsCounter, 3580 mSDsluCounter, 4139 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 10162 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:55,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3580 Valid, 10162 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 12:36:56,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144467 states. [2022-07-12 12:36:59,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144467 to 144395. [2022-07-12 12:36:59,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144395 states, 100092 states have (on average 1.3090456779762618) internal successors, (131025), 102504 states have internal predecessors, (131025), 35372 states have call successors, (35372), 8847 states have call predecessors, (35372), 8930 states have return successors, (38110), 34275 states have call predecessors, (38110), 35371 states have call successors, (38110) [2022-07-12 12:37:00,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144395 states to 144395 states and 204507 transitions. [2022-07-12 12:37:00,906 INFO L78 Accepts]: Start accepts. Automaton has 144395 states and 204507 transitions. Word has length 919 [2022-07-12 12:37:00,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:37:00,907 INFO L495 AbstractCegarLoop]: Abstraction has 144395 states and 204507 transitions. [2022-07-12 12:37:00,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2022-07-12 12:37:00,907 INFO L276 IsEmpty]: Start isEmpty. Operand 144395 states and 204507 transitions. [2022-07-12 12:37:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-07-12 12:37:01,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:37:01,385 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 16, 16, 13, 13, 12, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:37:01,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 12:37:01,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:37:01,591 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:37:01,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:37:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash 238516890, now seen corresponding path program 1 times [2022-07-12 12:37:01,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:37:01,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789862533] [2022-07-12 12:37:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:37:01,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:37:01,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:37:01,597 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) [2022-07-12 12:37:01,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 12:37:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:37:06,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 5982 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:37:06,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:37:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 1605 trivial. 0 not checked. [2022-07-12 12:37:06,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:37:06,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:37:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789862533] [2022-07-12 12:37:06,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789862533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:37:06,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:37:06,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:37:06,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857758158] [2022-07-12 12:37:06,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:37:06,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:37:06,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:37:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:37:06,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:37:06,904 INFO L87 Difference]: Start difference. First operand 144395 states and 204507 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-12 12:37:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:37:10,666 INFO L93 Difference]: Finished difference Result 288783 states and 409020 transitions. [2022-07-12 12:37:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:37:10,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 658 [2022-07-12 12:37:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:37:11,493 INFO L225 Difference]: With dead ends: 288783 [2022-07-12 12:37:11,494 INFO L226 Difference]: Without dead ends: 144427 [2022-07-12 12:37:12,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:37:12,149 INFO L413 NwaCegarLoop]: 4179 mSDtfsCounter, 0 mSDsluCounter, 4174 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:37:12,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:37:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144427 states. [2022-07-12 12:37:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144427 to 144427. [2022-07-12 12:37:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144427 states, 100124 states have (on average 1.3089469058367624) internal successors, (131057), 102536 states have internal predecessors, (131057), 35372 states have call successors, (35372), 8847 states have call predecessors, (35372), 8930 states have return successors, (38110), 34275 states have call predecessors, (38110), 35371 states have call successors, (38110) [2022-07-12 12:37:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144427 states to 144427 states and 204539 transitions. [2022-07-12 12:37:16,982 INFO L78 Accepts]: Start accepts. Automaton has 144427 states and 204539 transitions. Word has length 658 [2022-07-12 12:37:16,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:37:16,983 INFO L495 AbstractCegarLoop]: Abstraction has 144427 states and 204539 transitions. [2022-07-12 12:37:16,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-12 12:37:16,983 INFO L276 IsEmpty]: Start isEmpty. Operand 144427 states and 204539 transitions. [2022-07-12 12:37:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2022-07-12 12:37:17,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:37:17,175 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 20, 12, 11, 11, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:37:17,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-12 12:37:17,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:37:17,376 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:37:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:37:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash -695416437, now seen corresponding path program 1 times [2022-07-12 12:37:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:37:17,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552570629] [2022-07-12 12:37:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:37:17,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:37:17,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:37:17,381 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) [2022-07-12 12:37:17,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 12:37:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:37:24,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 6885 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 12:37:24,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:37:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 740 proven. 80 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2022-07-12 12:37:28,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:37:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2022-07-12 12:37:31,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:37:31,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552570629] [2022-07-12 12:37:31,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552570629] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 12:37:31,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:37:31,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-07-12 12:37:31,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245604855] [2022-07-12 12:37:31,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:37:31,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:37:31,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:37:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:37:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:37:31,362 INFO L87 Difference]: Start difference. First operand 144427 states and 204539 transitions. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 5 states have call successors, (122), 3 states have call predecessors, (122), 2 states have return successors, (121), 5 states have call predecessors, (121), 5 states have call successors, (121)