./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.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-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.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 fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:20:11,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:20:11,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:20:11,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:20:11,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:20:11,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:20:11,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:20:11,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:20:11,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:20:11,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:20:11,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:20:11,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:20:11,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:20:11,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:20:11,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:20:11,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:20:11,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:20:11,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:20:11,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:20:11,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:20:11,866 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:20:11,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:20:11,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:20:11,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:20:11,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:20:11,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:20:11,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:20:11,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:20:11,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:20:11,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:20:11,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:20:11,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:20:11,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:20:11,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:20:11,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:20:11,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:20:11,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:20:11,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:20:11,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:20:11,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:20:11,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:20:11,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:20:11,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:20:11,911 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:20:11,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:20:11,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:20:11,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:20:11,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:20:11,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:20:11,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:20:11,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:20:11,914 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:20:11,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:20:11,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:20:11,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:20:11,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:20:11,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:20:11,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:20:11,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:20:11,916 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:20:11,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:20:11,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:20:11,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:20:11,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:20:11,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:20:11,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:20:11,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:20:11,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:20:11,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:20:11,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:20:11,918 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:20:11,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:20:11,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:20:11,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-23 00:20:12,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:20:12,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:20:12,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:20:12,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:20:12,178 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:20:12,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-23 00:20:12,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/415443adc/4121be1e0d6d45bcb105f12d2d494294/FLAG5c1d80fc0 [2022-07-23 00:20:13,001 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:20:13,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-23 00:20:13,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/415443adc/4121be1e0d6d45bcb105f12d2d494294/FLAG5c1d80fc0 [2022-07-23 00:20:13,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/415443adc/4121be1e0d6d45bcb105f12d2d494294 [2022-07-23 00:20:13,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:20:13,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:20:13,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:20:13,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:20:13,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:20:13,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:20:13" (1/1) ... [2022-07-23 00:20:13,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c48a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:13, skipping insertion in model container [2022-07-23 00:20:13,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:20:13" (1/1) ... [2022-07-23 00:20:13,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:20:13,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:20:14,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-23 00:20:16,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:20:16,389 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:20:16,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-23 00:20:16,688 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) 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 00:20:16,697 INFO L158 Benchmark]: Toolchain (without parser) took 3135.94ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 91.2MB in the beginning and 96.1MB in the end (delta: -4.9MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-07-23 00:20:16,698 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 92.3MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 00:20:16,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3131.12ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 91.2MB in the beginning and 96.1MB in the end (delta: -4.9MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-07-23 00:20:16,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 92.3MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3131.12ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 91.2MB in the beginning and 96.1MB in the end (delta: -4.9MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.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 fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:20:18,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:20:18,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:20:18,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:20:18,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:20:18,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:20:18,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:20:18,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:20:18,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:20:18,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:20:18,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:20:18,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:20:18,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:20:18,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:20:18,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:20:18,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:20:18,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:20:18,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:20:18,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:20:18,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:20:18,510 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:20:18,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:20:18,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:20:18,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:20:18,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:20:18,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:20:18,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:20:18,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:20:18,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:20:18,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:20:18,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:20:18,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:20:18,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:20:18,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:20:18,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:20:18,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:20:18,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:20:18,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:20:18,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:20:18,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:20:18,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:20:18,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:20:18,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 00:20:18,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:20:18,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:20:18,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:20:18,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:20:18,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:20:18,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:20:18,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:20:18,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:20:18,572 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:20:18,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:20:18,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:20:18,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:20:18,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:20:18,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:20:18,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 00:20:18,574 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 00:20:18,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 00:20:18,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:20:18,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:20:18,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:20:18,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:20:18,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:20:18,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:20:18,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:20:18,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:20:18,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:20:18,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:20:18,576 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 00:20:18,576 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 00:20:18,577 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:20:18,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:20:18,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:20:18,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 00:20:18,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-23 00:20:18,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:20:18,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:20:18,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:20:18,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:20:18,925 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:20:18,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-23 00:20:18,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bd872e6/b4788a48500544e6a4044bb000669347/FLAGa93f0daed [2022-07-23 00:20:19,842 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:20:19,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-23 00:20:19,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bd872e6/b4788a48500544e6a4044bb000669347/FLAGa93f0daed [2022-07-23 00:20:19,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bd872e6/b4788a48500544e6a4044bb000669347 [2022-07-23 00:20:19,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:20:19,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:20:19,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:20:19,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:20:19,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:20:19,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:20:19" (1/1) ... [2022-07-23 00:20:19,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54af4fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:19, skipping insertion in model container [2022-07-23 00:20:19,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:20:19" (1/1) ... [2022-07-23 00:20:19,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:20:20,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:20:20,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-23 00:20:22,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:20:23,091 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 00:20:23,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:20:23,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-23 00:20:23,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:20:23,626 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:20:23,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-07-23 00:20:23,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:20:24,094 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:20:24,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24 WrapperNode [2022-07-23 00:20:24,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:20:24,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:20:24,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:20:24,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:20:24,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,544 INFO L137 Inliner]: procedures = 434, calls = 5126, calls flagged for inlining = 152, calls inlined = 136, statements flattened = 9807 [2022-07-23 00:20:24,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:20:24,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:20:24,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:20:24,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:20:24,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:20:24,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:20:24,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:20:24,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:20:24,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (1/1) ... [2022-07-23 00:20:24,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:20:25,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:20:25,014 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 00:20:25,023 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 00:20:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-23 00:20:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-23 00:20:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-23 00:20:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-23 00:20:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-23 00:20:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-23 00:20:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:20:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:20:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-23 00:20:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-23 00:20:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-23 00:20:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-23 00:20:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-23 00:20:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-23 00:20:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-23 00:20:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-23 00:20:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-23 00:20:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-23 00:20:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-23 00:20:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:20:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:20:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-23 00:20:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-23 00:20:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-23 00:20:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-23 00:20:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 00:20:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 00:20:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-23 00:20:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-23 00:20:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:20:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:20:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-23 00:20:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-23 00:20:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:20:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 00:20:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 00:20:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 00:20:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-23 00:20:25,056 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-23 00:20:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 00:20:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-23 00:20:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-23 00:20:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-23 00:20:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-23 00:20:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-23 00:20:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-23 00:20:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-23 00:20:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-23 00:20:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-23 00:20:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-23 00:20:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:20:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:20:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-23 00:20:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-23 00:20:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 00:20:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 00:20:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-23 00:20:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-23 00:20:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-23 00:20:25,060 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-23 00:20:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-23 00:20:25,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-23 00:20:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-23 00:20:25,060 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-23 00:20:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 00:20:25,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 00:20:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-23 00:20:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-23 00:20:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:20:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:20:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-23 00:20:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-23 00:20:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-23 00:20:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-23 00:20:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-23 00:20:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-23 00:20:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-23 00:20:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-23 00:20:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-23 00:20:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-23 00:20:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-23 00:20:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-23 00:20:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-23 00:20:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-23 00:20:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-23 00:20:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 00:20:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 00:20:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-23 00:20:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-23 00:20:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:20:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:20:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-23 00:20:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-23 00:20:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-23 00:20:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-23 00:20:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-23 00:20:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-23 00:20:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-23 00:20:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-23 00:20:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-23 00:20:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:20:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 00:20:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 00:20:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-23 00:20:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-23 00:20:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 00:20:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-23 00:20:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-23 00:20:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-23 00:20:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-23 00:20:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-23 00:20:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-23 00:20:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-23 00:20:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-23 00:20:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-23 00:20:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-23 00:20:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-23 00:20:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-23 00:20:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-23 00:20:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-23 00:20:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-23 00:20:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-23 00:20:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-23 00:20:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-23 00:20:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-23 00:20:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-23 00:20:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-23 00:20:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-23 00:20:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-23 00:20:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-23 00:20:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-23 00:20:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-23 00:20:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-23 00:20:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-23 00:20:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 00:20:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:20:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:20:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-23 00:20:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-23 00:20:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-23 00:20:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-23 00:20:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 00:20:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-23 00:20:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-23 00:20:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 00:20:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 00:20:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:20:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 00:20:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:20:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:20:25,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:20:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 00:20:25,141 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 00:20:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-23 00:20:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-23 00:20:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-23 00:20:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-23 00:20:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-23 00:20:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-23 00:20:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-23 00:20:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:20:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:20:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-23 00:20:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-23 00:20:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:20:25,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:20:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-23 00:20:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-23 00:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-23 00:20:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-23 00:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:20:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:20:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:20:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-23 00:20:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-23 00:20:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 00:20:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 00:20:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-23 00:20:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-23 00:20:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:20:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:20:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-23 00:20:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-23 00:20:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-23 00:20:25,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-23 00:20:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:20:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-23 00:20:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-23 00:20:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-23 00:20:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-23 00:20:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:20:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 00:20:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 00:20:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-23 00:20:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-23 00:20:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-23 00:20:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-23 00:20:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-23 00:20:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-23 00:20:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:20:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:20:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 00:20:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 00:20:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 00:20:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 00:20:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-23 00:20:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-23 00:20:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-23 00:20:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-23 00:20:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:20:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-23 00:20:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-23 00:20:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 00:20:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 00:20:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-23 00:20:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-23 00:20:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-23 00:20:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-23 00:20:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-23 00:20:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-23 00:20:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 00:20:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 00:20:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-23 00:20:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-23 00:20:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-23 00:20:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-23 00:20:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-23 00:20:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-23 00:20:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-23 00:20:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:20:25,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:20:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-23 00:20:25,154 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-23 00:20:25,154 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-23 00:20:25,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-23 00:20:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-23 00:20:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-23 00:20:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-23 00:20:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-23 00:20:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-23 00:20:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-23 00:20:25,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-23 00:20:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-23 00:20:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-23 00:20:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-23 00:20:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 00:20:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 00:20:25,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 00:20:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 00:20:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:20:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:20:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-23 00:20:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-23 00:20:25,157 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-23 00:20:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-23 00:20:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-23 00:20:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-23 00:20:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-23 00:20:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-23 00:20:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-23 00:20:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-23 00:20:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-23 00:20:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-23 00:20:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-23 00:20:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-23 00:20:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-23 00:20:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-23 00:20:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-23 00:20:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-23 00:20:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-23 00:20:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-23 00:20:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-23 00:20:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-23 00:20:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-23 00:20:25,160 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-23 00:20:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-23 00:20:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-23 00:20:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-23 00:20:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-23 00:20:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-23 00:20:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-23 00:20:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:20:25,161 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:20:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 00:20:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 00:20:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-23 00:20:25,162 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-23 00:20:26,175 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:20:26,182 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:20:27,113 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:20:27,410 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0bv64 != ~tmp___1~3;#res := ~ret~3; [2022-07-23 00:20:27,410 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0bv64 != ~tmp___1~3);#res := ~ret~3; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16bv32 == ~size; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10bv32 == ~size; [2022-07-23 00:20:27,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8bv32 == ~size; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := ~tmp___2~2[32:0]; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845: SUMMARY for call #t~ret118 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2bv32 == ~size; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4bv32 == ~size; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: ~tmp___1~3 := #t~ret117;havoc #t~ret117; [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835: SUMMARY for call #t~ret117 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:20:27,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: ~tmp___0~8 := #t~ret116;havoc #t~ret116; [2022-07-23 00:20:27,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: SUMMARY for call #t~ret116 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:20:27,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2022-07-23 00:20:27,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2022-07-23 00:21:55,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2022-07-23 00:21:55,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 4bv32 == __copy_from_user_~size#1; [2022-07-23 00:21:55,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 8bv32 == __copy_from_user_~size#1; [2022-07-23 00:21:55,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 10bv32 == __copy_from_user_~size#1; [2022-07-23 00:21:55,971 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2022-07-23 00:21:55,971 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 16bv32 == __copy_from_user_~size#1; [2022-07-23 00:21:55,971 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763-1: __copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret111#1;havoc __copy_from_user_#t~ret111#1; [2022-07-23 00:21:55,971 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763: SUMMARY for call __copy_from_user_#t~ret111#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:21:55,971 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume 0bv64 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume !(0bv64 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2022-07-23 00:21:55,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2022-07-23 00:21:55,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776: SUMMARY for call __copy_from_user_#t~ret112#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:21:55,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776-1: __copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret112#1;havoc __copy_from_user_#t~ret112#1; [2022-07-23 00:21:55,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume 0bv64 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume !(0bv64 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:55,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2022-07-23 00:21:55,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2022-07-23 00:21:55,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786: SUMMARY for call __copy_from_user_#t~ret113#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-07-23 00:21:55,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786-1: __copy_from_user_~tmp___2~1#1 := __copy_from_user_#t~ret113#1;havoc __copy_from_user_#t~ret113#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~1#1[32:0]; [2022-07-23 00:21:55,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 2bv32 == __copy_from_user_~size#1; [2022-07-23 00:21:55,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:21:56,193 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:21:56,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:21:56,231 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 00:21:56,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:21:56 BoogieIcfgContainer [2022-07-23 00:21:56,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:21:56,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:21:56,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:21:56,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:21:56,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:20:19" (1/3) ... [2022-07-23 00:21:56,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5970e726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:21:56, skipping insertion in model container [2022-07-23 00:21:56,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:20:24" (2/3) ... [2022-07-23 00:21:56,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5970e726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:21:56, skipping insertion in model container [2022-07-23 00:21:56,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:21:56" (3/3) ... [2022-07-23 00:21:56,246 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-23 00:21:56,259 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:21:56,259 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:21:56,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:21:56,376 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@557d3e1d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@485569bb [2022-07-23 00:21:56,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:21:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 3678 states, 2818 states have (on average 1.5049680624556423) internal successors, (4241), 2908 states have internal predecessors, (4241), 726 states have call successors, (726), 133 states have call predecessors, (726), 132 states have return successors, (718), 700 states have call predecessors, (718), 718 states have call successors, (718) [2022-07-23 00:21:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 00:21:56,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:21:56,413 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:21:56,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:21:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:21:56,423 INFO L85 PathProgramCache]: Analyzing trace with hash 862318060, now seen corresponding path program 1 times [2022-07-23 00:21:56,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:21:56,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442713637] [2022-07-23 00:21:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:21:56,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:21:56,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:21:56,445 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 00:21:56,505 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 00:22:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:02,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:22:02,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-23 00:22:02,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:02,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:02,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442713637] [2022-07-23 00:22:02,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442713637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:02,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:02,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:22:02,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142372510] [2022-07-23 00:22:02,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:02,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:22:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:02,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:22:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:02,468 INFO L87 Difference]: Start difference. First operand has 3678 states, 2818 states have (on average 1.5049680624556423) internal successors, (4241), 2908 states have internal predecessors, (4241), 726 states have call successors, (726), 133 states have call predecessors, (726), 132 states have return successors, (718), 700 states have call predecessors, (718), 718 states have call successors, (718) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 00:22:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:03,540 INFO L93 Difference]: Finished difference Result 8294 states and 12825 transitions. [2022-07-23 00:22:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:22:03,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2022-07-23 00:22:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:03,593 INFO L225 Difference]: With dead ends: 8294 [2022-07-23 00:22:03,593 INFO L226 Difference]: Without dead ends: 4594 [2022-07-23 00:22:03,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:03,628 INFO L413 NwaCegarLoop]: 5840 mSDtfsCounter, 1423 mSDsluCounter, 5620 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 11460 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:03,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 11460 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:22:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2022-07-23 00:22:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4586. [2022-07-23 00:22:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4586 states, 3540 states have (on average 1.501129943502825) internal successors, (5314), 3643 states have internal predecessors, (5314), 863 states have call successors, (863), 183 states have call predecessors, (863), 182 states have return successors, (859), 835 states have call predecessors, (859), 859 states have call successors, (859) [2022-07-23 00:22:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4586 states to 4586 states and 7036 transitions. [2022-07-23 00:22:03,903 INFO L78 Accepts]: Start accepts. Automaton has 4586 states and 7036 transitions. Word has length 55 [2022-07-23 00:22:03,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:03,904 INFO L495 AbstractCegarLoop]: Abstraction has 4586 states and 7036 transitions. [2022-07-23 00:22:03,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 00:22:03,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4586 states and 7036 transitions. [2022-07-23 00:22:03,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-23 00:22:03,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:03,913 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:04,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:22:04,113 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 00:22:04,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:04,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2041421241, now seen corresponding path program 1 times [2022-07-23 00:22:04,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:04,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820048742] [2022-07-23 00:22:04,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:04,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:04,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:04,122 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 00:22:04,123 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 00:22:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:09,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:22:09,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-23 00:22:10,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:10,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:10,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820048742] [2022-07-23 00:22:10,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820048742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:10,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:10,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:22:10,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950377940] [2022-07-23 00:22:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:10,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:22:10,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:22:10,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:10,272 INFO L87 Difference]: Start difference. First operand 4586 states and 7036 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 00:22:11,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:11,116 INFO L93 Difference]: Finished difference Result 4599 states and 7048 transitions. [2022-07-23 00:22:11,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:22:11,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-07-23 00:22:11,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:11,145 INFO L225 Difference]: With dead ends: 4599 [2022-07-23 00:22:11,146 INFO L226 Difference]: Without dead ends: 4596 [2022-07-23 00:22:11,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:11,149 INFO L413 NwaCegarLoop]: 5664 mSDtfsCounter, 5610 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:11,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5610 Valid, 5693 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 00:22:11,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-07-23 00:22:11,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2022-07-23 00:22:11,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 3548 states have (on average 1.5) internal successors, (5322), 3650 states have internal predecessors, (5322), 863 states have call successors, (863), 185 states have call predecessors, (863), 184 states have return successors, (860), 836 states have call predecessors, (860), 860 states have call successors, (860) [2022-07-23 00:22:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 7045 transitions. [2022-07-23 00:22:11,318 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 7045 transitions. Word has length 65 [2022-07-23 00:22:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:11,319 INFO L495 AbstractCegarLoop]: Abstraction has 4596 states and 7045 transitions. [2022-07-23 00:22:11,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 00:22:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 7045 transitions. [2022-07-23 00:22:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-23 00:22:11,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:11,322 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:11,422 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 00:22:11,536 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 00:22:11,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:11,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1141615170, now seen corresponding path program 1 times [2022-07-23 00:22:11,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:11,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003686792] [2022-07-23 00:22:11,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:11,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:11,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:11,542 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 00:22:11,544 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 00:22:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:17,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:22:17,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-23 00:22:17,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:17,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:17,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003686792] [2022-07-23 00:22:17,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003686792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:17,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:17,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:22:17,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28853027] [2022-07-23 00:22:17,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:17,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:22:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:22:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:17,460 INFO L87 Difference]: Start difference. First operand 4596 states and 7045 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 00:22:18,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:18,305 INFO L93 Difference]: Finished difference Result 7023 states and 10662 transitions. [2022-07-23 00:22:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:22:18,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-07-23 00:22:18,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:18,350 INFO L225 Difference]: With dead ends: 7023 [2022-07-23 00:22:18,351 INFO L226 Difference]: Without dead ends: 6935 [2022-07-23 00:22:18,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:18,364 INFO L413 NwaCegarLoop]: 6389 mSDtfsCounter, 2264 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 11977 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:18,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 11977 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 00:22:18,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-07-23 00:22:18,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-07-23 00:22:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 5345 states have (on average 1.4942937324602432) internal successors, (7987), 5519 states have internal predecessors, (7987), 1279 states have call successors, (1279), 313 states have call predecessors, (1279), 310 states have return successors, (1278), 1220 states have call predecessors, (1278), 1276 states have call successors, (1278) [2022-07-23 00:22:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10544 transitions. [2022-07-23 00:22:18,628 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10544 transitions. Word has length 66 [2022-07-23 00:22:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:18,628 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10544 transitions. [2022-07-23 00:22:18,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 00:22:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10544 transitions. [2022-07-23 00:22:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-23 00:22:18,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:18,637 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:22:18,756 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 00:22:18,851 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 00:22:18,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash 383961807, now seen corresponding path program 1 times [2022-07-23 00:22:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:18,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697654168] [2022-07-23 00:22:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:18,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:18,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:18,856 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 00:22:18,857 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 00:22:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:24,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 00:22:24,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-23 00:22:25,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:25,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:25,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697654168] [2022-07-23 00:22:25,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697654168] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:25,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:25,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:22:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091309500] [2022-07-23 00:22:25,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:25,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:22:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:22:25,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:22:25,013 INFO L87 Difference]: Start difference. First operand 6935 states and 10544 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 00:22:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:26,628 INFO L93 Difference]: Finished difference Result 13866 states and 21083 transitions. [2022-07-23 00:22:26,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:22:26,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-07-23 00:22:26,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:26,673 INFO L225 Difference]: With dead ends: 13866 [2022-07-23 00:22:26,673 INFO L226 Difference]: Without dead ends: 6939 [2022-07-23 00:22:26,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:22:26,706 INFO L413 NwaCegarLoop]: 5651 mSDtfsCounter, 23 mSDsluCounter, 22598 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28249 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:26,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28249 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-23 00:22:26,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2022-07-23 00:22:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6928. [2022-07-23 00:22:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 5342 states have (on average 1.4938225383751405) internal successors, (7980), 5514 states have internal predecessors, (7980), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-23 00:22:26,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10533 transitions. [2022-07-23 00:22:26,944 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10533 transitions. Word has length 110 [2022-07-23 00:22:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:26,946 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10533 transitions. [2022-07-23 00:22:26,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 00:22:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10533 transitions. [2022-07-23 00:22:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-23 00:22:26,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:26,956 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-07-23 00:22:27,083 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 00:22:27,179 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 00:22:27,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1223170593, now seen corresponding path program 1 times [2022-07-23 00:22:27,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:27,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916301564] [2022-07-23 00:22:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:27,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:27,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:27,184 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 00:22:27,186 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 00:22:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:33,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 00:22:33,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-23 00:22:33,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:33,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:33,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916301564] [2022-07-23 00:22:33,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916301564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:33,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:33,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:22:33,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894572825] [2022-07-23 00:22:33,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:33,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 00:22:33,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:33,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 00:22:33,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 00:22:33,391 INFO L87 Difference]: Start difference. First operand 6928 states and 10533 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:22:34,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:34,774 INFO L93 Difference]: Finished difference Result 14008 states and 21320 transitions. [2022-07-23 00:22:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 00:22:34,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-07-23 00:22:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:34,829 INFO L225 Difference]: With dead ends: 14008 [2022-07-23 00:22:34,830 INFO L226 Difference]: Without dead ends: 7106 [2022-07-23 00:22:34,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:22:34,861 INFO L413 NwaCegarLoop]: 5938 mSDtfsCounter, 3442 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 13810 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:34,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 13810 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-23 00:22:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7106 states. [2022-07-23 00:22:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7106 to 6928. [2022-07-23 00:22:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 5342 states have (on average 1.4930737551478848) internal successors, (7976), 5514 states have internal predecessors, (7976), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-23 00:22:35,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10529 transitions. [2022-07-23 00:22:35,101 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10529 transitions. Word has length 115 [2022-07-23 00:22:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:35,101 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10529 transitions. [2022-07-23 00:22:35,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:22:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10529 transitions. [2022-07-23 00:22:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-23 00:22:35,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:35,108 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-07-23 00:22:35,238 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 00:22:35,327 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 00:22:35,328 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:35,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:35,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1157822766, now seen corresponding path program 1 times [2022-07-23 00:22:35,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:35,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744920504] [2022-07-23 00:22:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:35,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:35,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:35,332 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 00:22:35,333 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 00:22:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:41,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:22:41,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-23 00:22:41,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:41,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:41,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744920504] [2022-07-23 00:22:41,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744920504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:41,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:41,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:22:41,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351810024] [2022-07-23 00:22:41,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:41,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:22:41,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:22:41,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:41,264 INFO L87 Difference]: Start difference. First operand 6928 states and 10529 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:22:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:41,532 INFO L93 Difference]: Finished difference Result 13858 states and 21066 transitions. [2022-07-23 00:22:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:22:41,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2022-07-23 00:22:41,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:41,567 INFO L225 Difference]: With dead ends: 13858 [2022-07-23 00:22:41,568 INFO L226 Difference]: Without dead ends: 6956 [2022-07-23 00:22:41,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:41,596 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 8 mSDsluCounter, 5647 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:41,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:22:41,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-07-23 00:22:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6932. [2022-07-23 00:22:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6932 states, 5346 states have (on average 1.4927048260381595) internal successors, (7980), 5518 states have internal predecessors, (7980), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-23 00:22:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 10533 transitions. [2022-07-23 00:22:41,785 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 10533 transitions. Word has length 119 [2022-07-23 00:22:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:41,785 INFO L495 AbstractCegarLoop]: Abstraction has 6932 states and 10533 transitions. [2022-07-23 00:22:41,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:22:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 10533 transitions. [2022-07-23 00:22:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 00:22:41,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:41,792 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-07-23 00:22:41,915 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 00:22:42,011 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 00:22:42,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:42,012 INFO L85 PathProgramCache]: Analyzing trace with hash 623672786, now seen corresponding path program 1 times [2022-07-23 00:22:42,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:42,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223409977] [2022-07-23 00:22:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:42,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:42,016 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 00:22:42,018 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 00:22:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:48,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 00:22:48,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-23 00:22:48,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:22:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-23 00:22:48,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:48,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223409977] [2022-07-23 00:22:48,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223409977] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:22:48,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:22:48,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-23 00:22:48,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219572755] [2022-07-23 00:22:48,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:22:48,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:22:48,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:48,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:22:48,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:22:48,767 INFO L87 Difference]: Start difference. First operand 6932 states and 10533 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 00:22:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:49,234 INFO L93 Difference]: Finished difference Result 13890 states and 21106 transitions. [2022-07-23 00:22:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:22:49,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2022-07-23 00:22:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:49,271 INFO L225 Difference]: With dead ends: 13890 [2022-07-23 00:22:49,271 INFO L226 Difference]: Without dead ends: 6984 [2022-07-23 00:22:49,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:22:49,294 INFO L413 NwaCegarLoop]: 5655 mSDtfsCounter, 28 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 22591 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:49,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 22591 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 00:22:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-07-23 00:22:49,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6960. [2022-07-23 00:22:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 5374 states have (on average 1.4916263490882025) internal successors, (8016), 5546 states have internal predecessors, (8016), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-23 00:22:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10569 transitions. [2022-07-23 00:22:49,590 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10569 transitions. Word has length 122 [2022-07-23 00:22:49,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:49,590 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10569 transitions. [2022-07-23 00:22:49,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 00:22:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10569 transitions. [2022-07-23 00:22:49,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-23 00:22:49,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:49,598 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-07-23 00:22:49,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 00:22:49,807 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 00:22:49,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:49,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:49,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1349838916, now seen corresponding path program 1 times [2022-07-23 00:22:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:49,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930537945] [2022-07-23 00:22:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:49,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:49,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:49,814 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 00:22:49,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 00:22:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:22:56,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:22:56,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:22:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-23 00:22:57,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:22:57,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:22:57,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930537945] [2022-07-23 00:22:57,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930537945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:22:57,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:22:57,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:22:57,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816150360] [2022-07-23 00:22:57,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:22:57,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:22:57,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:22:57,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:22:57,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:57,615 INFO L87 Difference]: Start difference. First operand 6960 states and 10569 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:22:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:22:57,796 INFO L93 Difference]: Finished difference Result 13894 states and 21106 transitions. [2022-07-23 00:22:57,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:22:57,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-07-23 00:22:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:22:57,830 INFO L225 Difference]: With dead ends: 13894 [2022-07-23 00:22:57,831 INFO L226 Difference]: Without dead ends: 6960 [2022-07-23 00:22:57,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:22:57,853 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 5601 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5601 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:22:57,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5601 Valid, 5650 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:22:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-07-23 00:22:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6960. [2022-07-23 00:22:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 5374 states have (on average 1.4908820245627092) internal successors, (8012), 5546 states have internal predecessors, (8012), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-07-23 00:22:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10565 transitions. [2022-07-23 00:22:58,070 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10565 transitions. Word has length 127 [2022-07-23 00:22:58,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:22:58,071 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10565 transitions. [2022-07-23 00:22:58,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:22:58,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10565 transitions. [2022-07-23 00:22:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-23 00:22:58,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:22:58,080 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-07-23 00:22:58,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 00:22:58,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:22:58,303 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:22:58,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:22:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash -355339667, now seen corresponding path program 1 times [2022-07-23 00:22:58,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:22:58,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717555578] [2022-07-23 00:22:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:22:58,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:22:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:22:58,309 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:22:58,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 00:23:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:05,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 00:23:05,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-07-23 00:23:05,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:05,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:05,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717555578] [2022-07-23 00:23:05,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717555578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:05,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:05,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:23:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294363577] [2022-07-23 00:23:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:05,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:23:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:05,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:23:05,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:05,403 INFO L87 Difference]: Start difference. First operand 6960 states and 10565 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:23:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:06,371 INFO L93 Difference]: Finished difference Result 13893 states and 21097 transitions. [2022-07-23 00:23:06,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:23:06,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-07-23 00:23:06,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:06,407 INFO L225 Difference]: With dead ends: 13893 [2022-07-23 00:23:06,407 INFO L226 Difference]: Without dead ends: 6959 [2022-07-23 00:23:06,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:06,431 INFO L413 NwaCegarLoop]: 7393 mSDtfsCounter, 5554 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 9628 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:06,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5554 Valid, 9628 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-23 00:23:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2022-07-23 00:23:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6959. [2022-07-23 00:23:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 5374 states have (on average 1.4905098622999629) internal successors, (8010), 5545 states have internal predecessors, (8010), 1276 states have call successors, (1276), 311 states have call predecessors, (1276), 308 states have return successors, (1266), 1217 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-07-23 00:23:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 10552 transitions. [2022-07-23 00:23:06,664 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 10552 transitions. Word has length 126 [2022-07-23 00:23:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:06,665 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 10552 transitions. [2022-07-23 00:23:06,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 00:23:06,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 10552 transitions. [2022-07-23 00:23:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-23 00:23:06,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:06,685 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:06,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:06,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:06,899 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:06,900 INFO L85 PathProgramCache]: Analyzing trace with hash 173054243, now seen corresponding path program 1 times [2022-07-23 00:23:06,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:06,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458767778] [2022-07-23 00:23:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:06,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:06,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:06,910 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:06,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 00:23:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:13,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:23:13,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-23 00:23:13,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:13,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:13,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458767778] [2022-07-23 00:23:13,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458767778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:13,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:13,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:23:13,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972330832] [2022-07-23 00:23:13,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:13,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:23:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:23:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:13,864 INFO L87 Difference]: Start difference. First operand 6959 states and 10552 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 00:23:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:15,202 INFO L93 Difference]: Finished difference Result 17231 states and 26013 transitions. [2022-07-23 00:23:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:23:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2022-07-23 00:23:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:15,247 INFO L225 Difference]: With dead ends: 17231 [2022-07-23 00:23:15,247 INFO L226 Difference]: Without dead ends: 10298 [2022-07-23 00:23:15,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:15,271 INFO L413 NwaCegarLoop]: 7107 mSDtfsCounter, 3619 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 11929 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:15,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 11929 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-23 00:23:15,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2022-07-23 00:23:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10280. [2022-07-23 00:23:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10280 states, 7871 states have (on average 1.476432473637403) internal successors, (11621), 8139 states have internal predecessors, (11621), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-23 00:23:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10280 states to 10280 states and 15453 transitions. [2022-07-23 00:23:15,578 INFO L78 Accepts]: Start accepts. Automaton has 10280 states and 15453 transitions. Word has length 151 [2022-07-23 00:23:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:15,579 INFO L495 AbstractCegarLoop]: Abstraction has 10280 states and 15453 transitions. [2022-07-23 00:23:15,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 00:23:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 10280 states and 15453 transitions. [2022-07-23 00:23:15,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-23 00:23:15,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:15,602 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:15,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:15,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:15,823 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash 5358041, now seen corresponding path program 1 times [2022-07-23 00:23:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:15,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246489615] [2022-07-23 00:23:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:15,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:15,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:15,830 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:15,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 00:23:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 00:23:22,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-23 00:23:22,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:22,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:22,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246489615] [2022-07-23 00:23:22,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246489615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:22,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:22,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:23:22,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859745455] [2022-07-23 00:23:22,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:22,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 00:23:22,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:22,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 00:23:22,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 00:23:22,783 INFO L87 Difference]: Start difference. First operand 10280 states and 15453 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-23 00:23:24,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:24,900 INFO L93 Difference]: Finished difference Result 24384 states and 36610 transitions. [2022-07-23 00:23:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:23:24,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 167 [2022-07-23 00:23:24,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:24,956 INFO L225 Difference]: With dead ends: 24384 [2022-07-23 00:23:24,957 INFO L226 Difference]: Without dead ends: 14130 [2022-07-23 00:23:24,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:23:24,982 INFO L413 NwaCegarLoop]: 8360 mSDtfsCounter, 3882 mSDsluCounter, 13708 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3882 SdHoareTripleChecker+Valid, 22068 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:24,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3882 Valid, 22068 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-23 00:23:24,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14130 states. [2022-07-23 00:23:25,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14130 to 10282. [2022-07-23 00:23:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10282 states, 7873 states have (on average 1.476184427791185) internal successors, (11622), 8141 states have internal predecessors, (11622), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-23 00:23:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10282 states to 10282 states and 15454 transitions. [2022-07-23 00:23:25,367 INFO L78 Accepts]: Start accepts. Automaton has 10282 states and 15454 transitions. Word has length 167 [2022-07-23 00:23:25,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:25,367 INFO L495 AbstractCegarLoop]: Abstraction has 10282 states and 15454 transitions. [2022-07-23 00:23:25,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-23 00:23:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 10282 states and 15454 transitions. [2022-07-23 00:23:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-23 00:23:25,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:25,394 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:25,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:25,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:25,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash -900271211, now seen corresponding path program 1 times [2022-07-23 00:23:25,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:25,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922653582] [2022-07-23 00:23:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:25,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:25,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:25,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:25,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 00:23:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:32,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:23:32,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-23 00:23:32,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:32,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:32,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922653582] [2022-07-23 00:23:32,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922653582] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:32,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:32,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:23:32,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858118135] [2022-07-23 00:23:32,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:32,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:23:32,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:32,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:23:32,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:32,909 INFO L87 Difference]: Start difference. First operand 10282 states and 15454 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:23:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:33,214 INFO L93 Difference]: Finished difference Result 20539 states and 30878 transitions. [2022-07-23 00:23:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:23:33,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 196 [2022-07-23 00:23:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:33,256 INFO L225 Difference]: With dead ends: 20539 [2022-07-23 00:23:33,256 INFO L226 Difference]: Without dead ends: 10283 [2022-07-23 00:23:33,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:33,286 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 0 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:33,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11294 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:23:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-23 00:23:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10283. [2022-07-23 00:23:33,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10283 states, 7874 states have (on average 1.4761239522479046) internal successors, (11623), 8142 states have internal predecessors, (11623), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-23 00:23:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 15455 transitions. [2022-07-23 00:23:33,747 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 15455 transitions. Word has length 196 [2022-07-23 00:23:33,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:33,748 INFO L495 AbstractCegarLoop]: Abstraction has 10283 states and 15455 transitions. [2022-07-23 00:23:33,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:23:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 15455 transitions. [2022-07-23 00:23:33,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-23 00:23:33,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:33,772 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:33,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:33,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:33,988 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:33,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:33,988 INFO L85 PathProgramCache]: Analyzing trace with hash -752536678, now seen corresponding path program 1 times [2022-07-23 00:23:33,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:33,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204092598] [2022-07-23 00:23:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:33,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:33,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:33,993 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:33,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 00:23:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:23:40,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 00:23:40,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:23:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-23 00:23:40,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:23:40,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:23:40,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204092598] [2022-07-23 00:23:40,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204092598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:23:40,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:23:40,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:23:40,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799339790] [2022-07-23 00:23:40,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:23:40,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:23:40,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:23:40,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:23:40,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:40,423 INFO L87 Difference]: Start difference. First operand 10283 states and 15455 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:23:40,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:23:40,936 INFO L93 Difference]: Finished difference Result 22581 states and 34122 transitions. [2022-07-23 00:23:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:23:40,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 198 [2022-07-23 00:23:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:23:40,988 INFO L225 Difference]: With dead ends: 22581 [2022-07-23 00:23:40,988 INFO L226 Difference]: Without dead ends: 12324 [2022-07-23 00:23:41,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:23:41,021 INFO L413 NwaCegarLoop]: 6984 mSDtfsCounter, 1666 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 12057 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:23:41,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 12057 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 00:23:41,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-07-23 00:23:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 10289. [2022-07-23 00:23:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10289 states, 7880 states have (on average 1.475761421319797) internal successors, (11629), 8148 states have internal predecessors, (11629), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-07-23 00:23:41,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 15461 transitions. [2022-07-23 00:23:41,382 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 15461 transitions. Word has length 198 [2022-07-23 00:23:41,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:23:41,383 INFO L495 AbstractCegarLoop]: Abstraction has 10289 states and 15461 transitions. [2022-07-23 00:23:41,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:23:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 15461 transitions. [2022-07-23 00:23:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-23 00:23:41,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:23:41,413 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:23:41,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 00:23:41,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:23:41,628 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:23:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:23:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1262009768, now seen corresponding path program 1 times [2022-07-23 00:23:41,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:23:41,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645239558] [2022-07-23 00:23:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:23:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:23:41,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:23:41,633 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:23:41,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 00:24:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:24:05,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-23 00:24:05,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:24:05,657 INFO L244 Elim1Store]: Index analysis took 414 ms [2022-07-23 00:24:07,226 INFO L356 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-07-23 00:24:07,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 597 treesize of output 646 [2022-07-23 00:24:07,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:24:07,676 INFO L244 Elim1Store]: Index analysis took 354 ms [2022-07-23 00:24:08,868 INFO L356 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-07-23 00:24:08,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 88