./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.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 e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:28:31,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:28:31,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:28:31,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:28:31,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:28:31,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:28:31,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:28:31,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:28:31,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:28:31,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:28:31,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:28:31,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:28:31,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:28:31,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:28:31,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:28:31,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:28:31,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:28:31,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:28:31,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:28:31,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:28:31,722 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:28:31,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:28:31,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:28:31,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:28:31,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:28:31,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:28:31,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:28:31,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:28:31,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:28:31,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:28:31,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:28:31,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:28:31,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:28:31,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:28:31,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:28:31,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:28:31,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:28:31,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:28:31,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:28:31,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:28:31,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:28:31,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:28:31,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:28:31,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:28:31,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:28:31,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:28:31,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:28:31,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:28:31,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:28:31,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:28:31,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:28:31,769 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:28:31,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:28:31,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:28:31,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:28:31,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:28:31,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:28:31,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:28:31,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:28:31,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:28:31,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:28:31,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:28:31,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:28:31,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:28:31,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:28:31,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:28:31,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:28:31,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 [2022-07-23 00:28:31,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:28:31,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:28:31,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:28:31,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:28:31,972 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:28:31,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-23 00:28:32,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9ab55c3/0c0b5d3dcc674913813f0e7c09d5742b/FLAG12430fce3 [2022-07-23 00:28:32,674 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:28:32,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-23 00:28:32,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9ab55c3/0c0b5d3dcc674913813f0e7c09d5742b/FLAG12430fce3 [2022-07-23 00:28:33,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9ab55c3/0c0b5d3dcc674913813f0e7c09d5742b [2022-07-23 00:28:33,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:28:33,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:28:33,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:28:33,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:28:33,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:28:33,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:28:33" (1/1) ... [2022-07-23 00:28:33,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbf11c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:33, skipping insertion in model container [2022-07-23 00:28:33,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:28:33" (1/1) ... [2022-07-23 00:28:33,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:28:33,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:28:33,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-23 00:28:34,014 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-23 00:28:34,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:28:34,074 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:28:34,162 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: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 00:28:34,167 INFO L158 Benchmark]: Toolchain (without parser) took 1150.69ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 80.4MB in the beginning and 86.3MB in the end (delta: -5.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-07-23 00:28:34,168 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 00:28:34,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1147.51ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 80.1MB in the beginning and 86.3MB in the end (delta: -6.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-07-23 00:28:34,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1147.51ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 80.1MB in the beginning and 86.3MB in the end (delta: -6.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.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 e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:28:35,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:28:35,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:28:35,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:28:35,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:28:35,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:28:35,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:28:35,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:28:35,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:28:35,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:28:35,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:28:35,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:28:35,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:28:35,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:28:35,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:28:35,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:28:35,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:28:35,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:28:35,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:28:35,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:28:35,745 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:28:35,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:28:35,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:28:35,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:28:35,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:28:35,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:28:35,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:28:35,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:28:35,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:28:35,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:28:35,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:28:35,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:28:35,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:28:35,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:28:35,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:28:35,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:28:35,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:28:35,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:28:35,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:28:35,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:28:35,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:28:35,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:28:35,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 00:28:35,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:28:35,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:28:35,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:28:35,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:28:35,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:28:35,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:28:35,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:28:35,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:28:35,802 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:28:35,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:28:35,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:28:35,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:28:35,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:28:35,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:28:35,804 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 00:28:35,804 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 00:28:35,804 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 00:28:35,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:28:35,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:28:35,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:28:35,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:28:35,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:28:35,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:28:35,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:28:35,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:28:35,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:28:35,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:28:35,806 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 00:28:35,806 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 00:28:35,806 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:28:35,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:28:35,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:28:35,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 00:28:35,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 [2022-07-23 00:28:36,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:28:36,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:28:36,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:28:36,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:28:36,114 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:28:36,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-23 00:28:36,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6be5b31/7caaebd6df304eaeb72cd42a03d11b5e/FLAG52764b15e [2022-07-23 00:28:36,736 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:28:36,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-23 00:28:36,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6be5b31/7caaebd6df304eaeb72cd42a03d11b5e/FLAG52764b15e [2022-07-23 00:28:36,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6be5b31/7caaebd6df304eaeb72cd42a03d11b5e [2022-07-23 00:28:36,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:28:36,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:28:36,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:28:36,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:28:36,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:28:36,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:28:36" (1/1) ... [2022-07-23 00:28:36,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f291f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:36, skipping insertion in model container [2022-07-23 00:28:36,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:28:36" (1/1) ... [2022-07-23 00:28:36,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:28:37,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:28:37,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-23 00:28:38,015 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-23 00:28:38,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:28:38,073 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 00:28:38,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:28:38,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-23 00:28:38,258 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-23 00:28:38,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:28:38,280 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:28:38,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-23 00:28:38,462 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-23 00:28:38,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:28:38,585 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:28:38,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38 WrapperNode [2022-07-23 00:28:38,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:28:38,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:28:38,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:28:38,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:28:38,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,713 INFO L137 Inliner]: procedures = 227, calls = 1352, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3540 [2022-07-23 00:28:38,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:28:38,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:28:38,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:28:38,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:28:38,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:28:38,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:28:38,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:28:38,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:28:38,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (1/1) ... [2022-07-23 00:28:38,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:28:38,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:28:38,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 00:28:38,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 00:28:38,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 00:28:38,959 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 00:28:38,959 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 00:28:38,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 00:28:38,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 00:28:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:28:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 00:28:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:28:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:28:38,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:28:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:28:38,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:28:38,960 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_sensor_show [2022-07-23 00:28:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_sensor_show [2022-07-23 00:28:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:28:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:28:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2022-07-23 00:28:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2022-07-23 00:28:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:28:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:28:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:28:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:28:38,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:28:38,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:28:38,962 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:28:38,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:28:38,962 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu_suspend [2022-07-23 00:28:38,963 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu_suspend [2022-07-23 00:28:38,963 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:28:38,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:28:38,964 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_notify_done [2022-07-23 00:28:38,964 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_notify_done [2022-07-23 00:28:38,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:28:38,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:28:38,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 00:28:38,965 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 00:28:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 00:28:38,965 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_irq_handler [2022-07-23 00:28:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_irq_handler [2022-07-23 00:28:38,965 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:28:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:28:38,965 INFO L130 BoogieDeclarations]: Found specification of procedure iio_triggered_buffer_cleanup [2022-07-23 00:28:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_triggered_buffer_cleanup [2022-07-23 00:28:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 00:28:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 00:28:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure inv_attr_show [2022-07-23 00:28:38,967 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_attr_show [2022-07-23 00:28:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 00:28:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 00:28:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:28:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-23 00:28:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-23 00:28:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:28:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 00:28:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 00:28:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 00:28:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 00:28:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_remove_trigger [2022-07-23 00:28:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_remove_trigger [2022-07-23 00:28:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-23 00:28:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-23 00:28:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 00:28:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 00:28:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_read_fifo [2022-07-23 00:28:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_read_fifo [2022-07-23 00:28:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_set_power_itg [2022-07-23 00:28:38,970 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_set_power_itg [2022-07-23 00:28:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-23 00:28:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-23 00:28:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2022-07-23 00:28:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2022-07-23 00:28:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu_resume [2022-07-23 00:28:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu_resume [2022-07-23 00:28:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_switch_engine [2022-07-23 00:28:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_switch_engine [2022-07-23 00:28:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure to_acpi_node [2022-07-23 00:28:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure to_acpi_node [2022-07-23 00:28:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure iio_priv [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_priv [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure iio_device_unregister [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_device_unregister [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:28:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:28:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 00:28:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-23 00:28:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_validate_trigger [2022-07-23 00:28:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_validate_trigger [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_mux_adapter [2022-07-23 00:28:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_mux_adapter [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_i2c_block_data [2022-07-23 00:28:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_i2c_block_data [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_iio_dev [2022-07-23 00:28:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_iio_dev [2022-07-23 00:28:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure inv_reset_fifo [2022-07-23 00:28:38,986 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_reset_fifo [2022-07-23 00:28:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-23 00:28:38,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-23 00:28:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 00:28:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:28:38,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:28:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_write_reg [2022-07-23 00:28:38,986 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_write_reg [2022-07-23 00:28:39,587 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:28:39,589 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:28:39,694 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:29:35,575 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:29:35,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:29:35,591 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:29:35,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:29:35 BoogieIcfgContainer [2022-07-23 00:29:35,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:29:35,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:29:35,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:29:35,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:29:35,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:28:36" (1/3) ... [2022-07-23 00:29:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7d141e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:29:35, skipping insertion in model container [2022-07-23 00:29:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:28:38" (2/3) ... [2022-07-23 00:29:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7d141e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:29:35, skipping insertion in model container [2022-07-23 00:29:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:29:35" (3/3) ... [2022-07-23 00:29:35,605 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-23 00:29:35,614 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:29:35,615 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:29:35,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:29:35,699 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@285c7e02, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@495148ba [2022-07-23 00:29:35,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:29:35,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 1037 states, 786 states have (on average 1.4287531806615776) internal successors, (1123), 801 states have internal predecessors, (1123), 205 states have call successors, (205), 45 states have call predecessors, (205), 44 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2022-07-23 00:29:35,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-23 00:29:35,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:35,733 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:35,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash 175591800, now seen corresponding path program 1 times [2022-07-23 00:29:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:35,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504466286] [2022-07-23 00:29:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:29:35,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:35,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:35,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:35,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 00:29:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:38,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 00:29:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2022-07-23 00:29:38,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:29:38,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:38,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504466286] [2022-07-23 00:29:38,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504466286] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:29:38,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:29:38,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:29:38,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906353164] [2022-07-23 00:29:38,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:29:38,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 00:29:38,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 00:29:38,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 00:29:38,082 INFO L87 Difference]: Start difference. First operand has 1037 states, 786 states have (on average 1.4287531806615776) internal successors, (1123), 801 states have internal predecessors, (1123), 205 states have call successors, (205), 45 states have call predecessors, (205), 44 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 00:29:38,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:38,188 INFO L93 Difference]: Finished difference Result 2069 states and 3070 transitions. [2022-07-23 00:29:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 00:29:38,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 317 [2022-07-23 00:29:38,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:38,202 INFO L225 Difference]: With dead ends: 2069 [2022-07-23 00:29:38,211 INFO L226 Difference]: Without dead ends: 1020 [2022-07-23 00:29:38,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 00:29:38,223 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:38,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:29:38,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-07-23 00:29:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2022-07-23 00:29:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 781 states have (on average 1.4148527528809218) internal successors, (1105), 784 states have internal predecessors, (1105), 195 states have call successors, (195), 44 states have call predecessors, (195), 43 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-23 00:29:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1494 transitions. [2022-07-23 00:29:38,334 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1494 transitions. Word has length 317 [2022-07-23 00:29:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:38,336 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1494 transitions. [2022-07-23 00:29:38,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 00:29:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1494 transitions. [2022-07-23 00:29:38,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-23 00:29:38,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:38,347 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:38,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-23 00:29:38,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:38,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -464706278, now seen corresponding path program 1 times [2022-07-23 00:29:38,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:38,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316277722] [2022-07-23 00:29:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:29:38,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:38,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:38,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:38,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 00:29:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:40,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 00:29:40,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2022-07-23 00:29:41,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:29:41,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:41,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316277722] [2022-07-23 00:29:41,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316277722] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:29:41,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:29:41,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:29:41,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880110510] [2022-07-23 00:29:41,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:29:41,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:29:41,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:41,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:29:41,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:29:41,579 INFO L87 Difference]: Start difference. First operand 1020 states and 1494 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-23 00:29:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:42,965 INFO L93 Difference]: Finished difference Result 2012 states and 2951 transitions. [2022-07-23 00:29:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:29:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 317 [2022-07-23 00:29:42,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:42,974 INFO L225 Difference]: With dead ends: 2012 [2022-07-23 00:29:42,974 INFO L226 Difference]: Without dead ends: 1021 [2022-07-23 00:29:42,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:29:42,981 INFO L413 NwaCegarLoop]: 1485 mSDtfsCounter, 6 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7403 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:42,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7403 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-23 00:29:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2022-07-23 00:29:43,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2022-07-23 00:29:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 782 states have (on average 1.4143222506393862) internal successors, (1106), 785 states have internal predecessors, (1106), 195 states have call successors, (195), 44 states have call predecessors, (195), 43 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-23 00:29:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1495 transitions. [2022-07-23 00:29:43,024 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1495 transitions. Word has length 317 [2022-07-23 00:29:43,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:43,027 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1495 transitions. [2022-07-23 00:29:43,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-23 00:29:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1495 transitions. [2022-07-23 00:29:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-23 00:29:43,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:43,036 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:43,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:43,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:43,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:43,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1919425372, now seen corresponding path program 1 times [2022-07-23 00:29:43,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:43,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651871087] [2022-07-23 00:29:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:29:43,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:43,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:43,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:43,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 00:29:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:45,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 00:29:45,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:46,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2022-07-23 00:29:46,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:29:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-07-23 00:29:49,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:49,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651871087] [2022-07-23 00:29:49,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651871087] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:29:49,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:29:49,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-23 00:29:49,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534230887] [2022-07-23 00:29:49,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:29:49,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:29:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:49,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:29:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:29:49,119 INFO L87 Difference]: Start difference. First operand 1021 states and 1495 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-23 00:29:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:51,826 INFO L93 Difference]: Finished difference Result 2024 states and 2967 transitions. [2022-07-23 00:29:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 00:29:51,827 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 322 [2022-07-23 00:29:51,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:51,833 INFO L225 Difference]: With dead ends: 2024 [2022-07-23 00:29:51,833 INFO L226 Difference]: Without dead ends: 1037 [2022-07-23 00:29:51,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:29:51,836 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 12 mSDsluCounter, 7398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8886 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:51,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8886 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 00:29:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-23 00:29:51,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2022-07-23 00:29:51,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 793 states have (on average 1.4098360655737705) internal successors, (1118), 796 states have internal predecessors, (1118), 197 states have call successors, (197), 47 states have call predecessors, (197), 46 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2022-07-23 00:29:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1511 transitions. [2022-07-23 00:29:51,859 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1511 transitions. Word has length 322 [2022-07-23 00:29:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:51,860 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1511 transitions. [2022-07-23 00:29:51,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-23 00:29:51,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1511 transitions. [2022-07-23 00:29:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-23 00:29:51,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:51,863 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:51,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:52,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:52,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:52,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1749695910, now seen corresponding path program 2 times [2022-07-23 00:29:52,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:52,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825625444] [2022-07-23 00:29:52,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:29:52,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:52,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 00:29:54,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:29:54,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:29:54,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:29:54,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1655 trivial. 0 not checked. [2022-07-23 00:29:54,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:29:54,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:54,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825625444] [2022-07-23 00:29:54,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825625444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:29:54,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:29:54,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:29:54,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403035124] [2022-07-23 00:29:54,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:29:54,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:29:54,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:54,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:29:54,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:29:54,610 INFO L87 Difference]: Start difference. First operand 1037 states and 1511 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-23 00:29:56,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:29:57,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:57,090 INFO L93 Difference]: Finished difference Result 2979 states and 4355 transitions. [2022-07-23 00:29:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:29:57,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 327 [2022-07-23 00:29:57,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:57,102 INFO L225 Difference]: With dead ends: 2979 [2022-07-23 00:29:57,103 INFO L226 Difference]: Without dead ends: 1995 [2022-07-23 00:29:57,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:29:57,107 INFO L413 NwaCegarLoop]: 1678 mSDtfsCounter, 1386 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:57,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-23 00:29:57,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2022-07-23 00:29:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2022-07-23 00:29:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1539 states have (on average 1.4197530864197532) internal successors, (2185), 1545 states have internal predecessors, (2185), 365 states have call successors, (365), 91 states have call predecessors, (365), 90 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2022-07-23 00:29:57,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2914 transitions. [2022-07-23 00:29:57,221 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2914 transitions. Word has length 327 [2022-07-23 00:29:57,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:57,222 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2914 transitions. [2022-07-23 00:29:57,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-23 00:29:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2914 transitions. [2022-07-23 00:29:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-23 00:29:57,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:57,226 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:57,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:57,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:57,451 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:57,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1048183032, now seen corresponding path program 1 times [2022-07-23 00:29:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:57,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114072360] [2022-07-23 00:29:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:29:57,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:57,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:57,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:57,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 00:29:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:59,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:29:59,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:30:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2022-07-23 00:30:01,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:30:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2022-07-23 00:30:06,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:30:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114072360] [2022-07-23 00:30:06,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114072360] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:30:06,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:30:06,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-23 00:30:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384366106] [2022-07-23 00:30:06,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:30:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 00:30:06,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:30:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 00:30:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:30:06,622 INFO L87 Difference]: Start difference. First operand 1995 states and 2914 transitions. Second operand has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-23 00:30:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:11,816 INFO L93 Difference]: Finished difference Result 3968 states and 5797 transitions. [2022-07-23 00:30:11,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 00:30:11,817 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 330 [2022-07-23 00:30:11,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:11,825 INFO L225 Difference]: With dead ends: 3968 [2022-07-23 00:30:11,825 INFO L226 Difference]: Without dead ends: 1997 [2022-07-23 00:30:11,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-23 00:30:11,831 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 20 mSDsluCounter, 10365 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11854 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:30:11,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11854 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-23 00:30:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-07-23 00:30:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1997. [2022-07-23 00:30:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1541 states have (on average 1.419208306294614) internal successors, (2187), 1547 states have internal predecessors, (2187), 365 states have call successors, (365), 91 states have call predecessors, (365), 90 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2022-07-23 00:30:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2916 transitions. [2022-07-23 00:30:11,878 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2916 transitions. Word has length 330 [2022-07-23 00:30:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:11,879 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 2916 transitions. [2022-07-23 00:30:11,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-23 00:30:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2916 transitions. [2022-07-23 00:30:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-07-23 00:30:11,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:11,882 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:30:11,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:30:12,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:12,095 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash -472066826, now seen corresponding path program 2 times [2022-07-23 00:30:12,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:12,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315949706] [2022-07-23 00:30:12,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:30:12,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:12,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:12,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:12,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 00:30:14,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:30:14,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:30:14,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:30:14,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:30:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-07-23 00:30:27,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:30:27,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:30:27,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315949706] [2022-07-23 00:30:27,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315949706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:30:27,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:30:27,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:30:27,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513022415] [2022-07-23 00:30:27,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:30:27,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:30:27,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:30:27,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:30:27,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:30:27,870 INFO L87 Difference]: Start difference. First operand 1997 states and 2916 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-23 00:30:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:27,981 INFO L93 Difference]: Finished difference Result 3941 states and 5761 transitions. [2022-07-23 00:30:27,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:30:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 335 [2022-07-23 00:30:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:27,997 INFO L225 Difference]: With dead ends: 3941 [2022-07-23 00:30:27,997 INFO L226 Difference]: Without dead ends: 3934 [2022-07-23 00:30:27,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:30:28,000 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1386 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:30:28,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3110 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:30:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-07-23 00:30:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3934. [2022-07-23 00:30:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 3048 states have (on average 1.4229002624671916) internal successors, (4337), 3060 states have internal predecessors, (4337), 707 states have call successors, (707), 179 states have call predecessors, (707), 178 states have return successors, (708), 706 states have call predecessors, (708), 706 states have call successors, (708) [2022-07-23 00:30:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5752 transitions. [2022-07-23 00:30:28,083 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5752 transitions. Word has length 335 [2022-07-23 00:30:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:28,084 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5752 transitions. [2022-07-23 00:30:28,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-23 00:30:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5752 transitions. [2022-07-23 00:30:28,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-07-23 00:30:28,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:28,093 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:30:28,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 00:30:28,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:28,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1777899120, now seen corresponding path program 1 times [2022-07-23 00:30:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:28,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959309234] [2022-07-23 00:30:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:30:28,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:28,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:28,312 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:28,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 00:30:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:30:31,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 00:30:31,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:30:33,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 1663 trivial. 0 not checked. [2022-07-23 00:30:33,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:30:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-23 00:30:39,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:30:39,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959309234] [2022-07-23 00:30:39,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959309234] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:30:39,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:30:39,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-23 00:30:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795640590] [2022-07-23 00:30:39,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:30:39,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 00:30:39,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:30:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 00:30:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:30:39,431 INFO L87 Difference]: Start difference. First operand 3934 states and 5752 transitions. Second operand has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-23 00:30:44,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:44,994 INFO L93 Difference]: Finished difference Result 7852 states and 11481 transitions. [2022-07-23 00:30:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 00:30:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 451 [2022-07-23 00:30:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:45,009 INFO L225 Difference]: With dead ends: 7852 [2022-07-23 00:30:45,010 INFO L226 Difference]: Without dead ends: 3938 [2022-07-23 00:30:45,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 887 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-07-23 00:30:45,019 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 21 mSDsluCounter, 10375 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11864 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-23 00:30:45,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11864 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-23 00:30:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-23 00:30:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-23 00:30:45,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3052 states have (on average 1.422346002621232) internal successors, (4341), 3064 states have internal predecessors, (4341), 707 states have call successors, (707), 179 states have call predecessors, (707), 178 states have return successors, (708), 706 states have call predecessors, (708), 706 states have call successors, (708) [2022-07-23 00:30:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5756 transitions. [2022-07-23 00:30:45,104 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5756 transitions. Word has length 451 [2022-07-23 00:30:45,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:45,106 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5756 transitions. [2022-07-23 00:30:45,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-23 00:30:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5756 transitions. [2022-07-23 00:30:45,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-07-23 00:30:45,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:45,115 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:30:45,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-23 00:30:45,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:45,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1657615186, now seen corresponding path program 2 times [2022-07-23 00:30:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:45,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079204622] [2022-07-23 00:30:45,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:30:45,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:45,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:45,336 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:45,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process