./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 eb692b52 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-?-eb692b5 [2022-07-20 00:05:48,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:05:48,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:05:48,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:05:48,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:05:48,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:05:48,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:05:48,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:05:48,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:05:48,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:05:48,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:05:48,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:05:48,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:05:48,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:05:48,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:05:48,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:05:48,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:05:48,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:05:48,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:05:48,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:05:48,115 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:05:48,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:05:48,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:05:48,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:05:48,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:05:48,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:05:48,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:05:48,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:05:48,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:05:48,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:05:48,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:05:48,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:05:48,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:05:48,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:05:48,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:05:48,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:05:48,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:05:48,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:05:48,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:05:48,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:05:48,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:05:48,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:05:48,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:05:48,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:05:48,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:05:48,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:05:48,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:05:48,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:05:48,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:05:48,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:05:48,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:05:48,163 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:05:48,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:05:48,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:05:48,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:05:48,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:05:48,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:05:48,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:05:48,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:05:48,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:05:48,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:05:48,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:05:48,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:05:48,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:05:48,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:05:48,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:05:48,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:05:48,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:05:48,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:05:48,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:05:48,168 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:05:48,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:05:48,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:05:48,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-20 00:05:48,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:05:48,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:05:48,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:05:48,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:05:48,596 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:05:48,597 INFO L432 ainManager$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 [2022-07-20 00:05:48,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5265a24fa/b6f9fde007ef48fe9c939d1dfc2dd021/FLAGc74e43c70 [2022-07-20 00:05:49,621 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:05:49,621 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 [2022-07-20 00:05:49,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5265a24fa/b6f9fde007ef48fe9c939d1dfc2dd021/FLAGc74e43c70 [2022-07-20 00:05:50,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5265a24fa/b6f9fde007ef48fe9c939d1dfc2dd021 [2022-07-20 00:05:50,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:05:50,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:05:50,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:05:50,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:05:50,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:05:50,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:05:50" (1/1) ... [2022-07-20 00:05:50,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131be9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:05:50, skipping insertion in model container [2022-07-20 00:05:50,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:05:50" (1/1) ... [2022-07-20 00:05:50,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:05:50,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:05:50,711 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] [2022-07-20 00:05:53,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:05:53,239 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:05:53,291 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] [2022-07-20 00:05:53,483 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) [2022-07-20 00:05:53,489 INFO L158 Benchmark]: Toolchain (without parser) took 3309.25ms. Allocated memory was 94.4MB in the beginning and 205.5MB in the end (delta: 111.1MB). Free memory was 58.1MB in the beginning and 103.4MB in the end (delta: -45.2MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. [2022-07-20 00:05:53,489 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 00:05:53,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3307.41ms. Allocated memory was 94.4MB in the beginning and 205.5MB in the end (delta: 111.1MB). Free memory was 57.9MB in the beginning and 103.4MB in the end (delta: -45.5MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. [2022-07-20 00:05:53,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3307.41ms. Allocated memory was 94.4MB in the beginning and 205.5MB in the end (delta: 111.1MB). Free memory was 57.9MB in the beginning and 103.4MB in the end (delta: -45.5MB). Peak memory consumption was 76.1MB. 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-?-eb692b5 [2022-07-20 00:05:55,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:05:55,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:05:55,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:05:55,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:05:55,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:05:55,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:05:55,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:05:55,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:05:55,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:05:55,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:05:55,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:05:55,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:05:55,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:05:55,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:05:55,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:05:55,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:05:55,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:05:55,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:05:55,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:05:55,353 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:05:55,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:05:55,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:05:55,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:05:55,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:05:55,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:05:55,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:05:55,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:05:55,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:05:55,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:05:55,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:05:55,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:05:55,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:05:55,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:05:55,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:05:55,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:05:55,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:05:55,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:05:55,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:05:55,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:05:55,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:05:55,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:05:55,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 00:05:55,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:05:55,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:05:55,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:05:55,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:05:55,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:05:55,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:05:55,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:05:55,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:05:55,403 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:05:55,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:05:55,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:05:55,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:05:55,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:05:55,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:05:55,404 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 00:05:55,405 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 00:05:55,405 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 00:05:55,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:05:55,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:05:55,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:05:55,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:05:55,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:05:55,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:05:55,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:05:55,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:05:55,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:05:55,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:05:55,407 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 00:05:55,407 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 00:05:55,407 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:05:55,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:05:55,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:05:55,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 00:05:55,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-20 00:05:55,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:05:55,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:05:55,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:05:55,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:05:55,861 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:05:55,863 INFO L432 ainManager$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 [2022-07-20 00:05:55,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20144d2f7/1d042d4cf34b4fb9af04e20a5bab2cf9/FLAG04928dd1b [2022-07-20 00:05:56,638 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:05:56,639 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 [2022-07-20 00:05:56,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20144d2f7/1d042d4cf34b4fb9af04e20a5bab2cf9/FLAG04928dd1b [2022-07-20 00:05:56,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20144d2f7/1d042d4cf34b4fb9af04e20a5bab2cf9 [2022-07-20 00:05:56,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:05:56,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:05:56,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:05:56,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:05:56,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:05:56,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:05:56" (1/1) ... [2022-07-20 00:05:56,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41676805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:05:56, skipping insertion in model container [2022-07-20 00:05:56,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:05:56" (1/1) ... [2022-07-20 00:05:56,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:05:57,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:05:57,695 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] [2022-07-20 00:05:59,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:05:59,273 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 00:05:59,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:05:59,363 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] [2022-07-20 00:05:59,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:05:59,639 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:05:59,695 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] [2022-07-20 00:05:59,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:06:00,140 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:06:00,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00 WrapperNode [2022-07-20 00:06:00,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:06:00,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:06:00,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:06:00,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:06:00,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,479 INFO L137 Inliner]: procedures = 434, calls = 5126, calls flagged for inlining = 152, calls inlined = 136, statements flattened = 9807 [2022-07-20 00:06:00,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:06:00,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:06:00,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:06:00,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:06:00,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:06:00,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:06:00,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:06:00,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:06:00,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (1/1) ... [2022-07-20 00:06:00,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:06:00,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:06:00,988 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) [2022-07-20 00:06:01,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 00:06:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-20 00:06:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-20 00:06:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-20 00:06:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-20 00:06:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-20 00:06:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-20 00:06:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:06:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:06:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-20 00:06:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-20 00:06:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-20 00:06:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-20 00:06:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-20 00:06:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-20 00:06:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-20 00:06:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-20 00:06:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-20 00:06:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-20 00:06:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-20 00:06:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:06:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:06:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-20 00:06:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-20 00:06:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-20 00:06:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-20 00:06:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 00:06:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 00:06:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-20 00:06:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-20 00:06:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 00:06:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 00:06:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-20 00:06:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-20 00:06:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:06:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 00:06:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 00:06:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 00:06:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-20 00:06:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-20 00:06:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 00:06:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-20 00:06:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-20 00:06:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-20 00:06:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-20 00:06:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-20 00:06:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-20 00:06:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-20 00:06:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-20 00:06:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-20 00:06:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-20 00:06:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 00:06:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 00:06:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-20 00:06:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-20 00:06:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-20 00:06:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-20 00:06:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-20 00:06:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-20 00:06:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-20 00:06:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-20 00:06:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-20 00:06:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-20 00:06:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-20 00:06:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-20 00:06:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 00:06:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 00:06:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-20 00:06:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-20 00:06:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 00:06:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 00:06:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-20 00:06:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-20 00:06:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-20 00:06:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-20 00:06:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-20 00:06:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-20 00:06:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-20 00:06:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-20 00:06:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-20 00:06:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-20 00:06:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-20 00:06:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-20 00:06:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-20 00:06:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-20 00:06:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-20 00:06:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-20 00:06:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-20 00:06:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-20 00:06:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-20 00:06:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-20 00:06:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-20 00:06:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-20 00:06:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-20 00:06:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-20 00:06:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-20 00:06:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-20 00:06:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-20 00:06:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-20 00:06:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-20 00:06:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:06:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-20 00:06:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-20 00:06:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-20 00:06:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-20 00:06:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-20 00:06:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 00:06:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-20 00:06:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-20 00:06:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-20 00:06:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-20 00:06:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-20 00:06:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-20 00:06:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-20 00:06:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-20 00:06:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-20 00:06:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-20 00:06:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-20 00:06:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-20 00:06:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-20 00:06:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-20 00:06:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-20 00:06:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-20 00:06:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-20 00:06:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-20 00:06:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-20 00:06:01,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-20 00:06:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-20 00:06:01,060 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-20 00:06:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-20 00:06:01,060 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-20 00:06:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-20 00:06:01,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-20 00:06:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-20 00:06:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-20 00:06:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 00:06:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:06:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:06:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-20 00:06:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-20 00:06:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-20 00:06:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-20 00:06:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 00:06:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-20 00:06:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:06:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:06:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-20 00:06:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-20 00:06:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-20 00:06:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-20 00:06:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-20 00:06:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-20 00:06:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-20 00:06:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-20 00:06:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-20 00:06:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:06:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:06:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-20 00:06:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-20 00:06:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:06:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:06:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-20 00:06:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-20 00:06:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-20 00:06:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-20 00:06:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:06:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:06:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:06:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:06:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-20 00:06:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-20 00:06:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 00:06:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 00:06:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-20 00:06:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-20 00:06:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-20 00:06:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-20 00:06:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-20 00:06:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-20 00:06:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-20 00:06:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-20 00:06:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:06:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-20 00:06:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-20 00:06:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-20 00:06:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-20 00:06:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:06:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 00:06:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 00:06:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-20 00:06:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-20 00:06:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-20 00:06:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-20 00:06:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-20 00:06:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-20 00:06:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-20 00:06:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-20 00:06:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 00:06:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 00:06:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 00:06:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 00:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-20 00:06:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-20 00:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-20 00:06:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-20 00:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-20 00:06:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-20 00:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-20 00:06:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-20 00:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-20 00:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-20 00:06:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-20 00:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-20 00:06:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-20 00:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-20 00:06:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 00:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 00:06:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-20 00:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-20 00:06:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-20 00:06:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-20 00:06:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-20 00:06:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-20 00:06:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-20 00:06:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-20 00:06:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-20 00:06:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-20 00:06:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-20 00:06:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-20 00:06:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-20 00:06:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-20 00:06:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-20 00:06:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-20 00:06:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-20 00:06:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-20 00:06:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-20 00:06:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-20 00:06:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-20 00:06:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-20 00:06:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-20 00:06:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 00:06:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 00:06:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 00:06:01,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 00:06:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:06:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:06:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-20 00:06:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-20 00:06:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-20 00:06:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-20 00:06:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-20 00:06:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-20 00:06:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-20 00:06:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-20 00:06:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-20 00:06:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-20 00:06:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-20 00:06:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-20 00:06:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-20 00:06:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-20 00:06:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-20 00:06:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-20 00:06:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-20 00:06:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-20 00:06:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-20 00:06:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-20 00:06:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-20 00:06:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-20 00:06:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-20 00:06:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-20 00:06:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-20 00:06:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-20 00:06:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-20 00:06:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-20 00:06:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-20 00:06:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-20 00:06:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 00:06:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 00:06:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 00:06:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 00:06:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-20 00:06:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-20 00:06:01,791 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:06:01,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:06:02,618 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0bv64 != ~tmp___1~3;#res := ~ret~3; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0bv64 != ~tmp___1~3);#res := ~ret~3; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2022-07-20 00:06:02,825 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16bv32 == ~size; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10bv32 == ~size; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8bv32 == ~size; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := ~tmp___2~2[32:0]; [2022-07-20 00:06:02,826 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 [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2bv32 == ~size; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4bv32 == ~size; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: ~tmp___1~3 := #t~ret117;havoc #t~ret117; [2022-07-20 00:06:02,826 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 [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: ~tmp___0~8 := #t~ret116;havoc #t~ret116; [2022-07-20 00:06:02,826 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 [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2022-07-20 00:06:02,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2022-07-20 00:07:28,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2022-07-20 00:07:28,313 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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 [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 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; [2022-07-20 00:07:28,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2022-07-20 00:07:28,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2022-07-20 00:07:28,315 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 [2022-07-20 00:07:28,315 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; [2022-07-20 00:07:28,315 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; [2022-07-20 00:07:28,315 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; [2022-07-20 00:07:28,315 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2022-07-20 00:07:28,315 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2022-07-20 00:07:28,315 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 [2022-07-20 00:07:28,315 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]; [2022-07-20 00:07:28,315 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; [2022-07-20 00:07:28,315 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; [2022-07-20 00:07:28,489 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:07:28,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:07:28,513 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 00:07:28,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:07:28 BoogieIcfgContainer [2022-07-20 00:07:28,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:07:28,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:07:28,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:07:28,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:07:28,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:05:56" (1/3) ... [2022-07-20 00:07:28,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5550699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:07:28, skipping insertion in model container [2022-07-20 00:07:28,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:06:00" (2/3) ... [2022-07-20 00:07:28,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5550699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:07:28, skipping insertion in model container [2022-07-20 00:07:28,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:07:28" (3/3) ... [2022-07-20 00:07:28,522 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-20 00:07:28,532 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:07:28,532 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:07:28,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:07:28,616 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@76a94154, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c930498 [2022-07-20 00:07:28,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:07:28,628 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) [2022-07-20 00:07:28,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-20 00:07:28,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:07:28,643 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] [2022-07-20 00:07:28,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:07:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:07:28,652 INFO L85 PathProgramCache]: Analyzing trace with hash 862318060, now seen corresponding path program 1 times [2022-07-20 00:07:28,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:07:28,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524011017] [2022-07-20 00:07:28,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:07:28,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:07:28,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:07:28,673 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) [2022-07-20 00:07:28,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 00:07:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:07:34,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:07:34,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:07:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 00:07:34,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:07:34,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:07:34,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524011017] [2022-07-20 00:07:34,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524011017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:07:34,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:07:34,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:07:34,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305223461] [2022-07-20 00:07:34,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:07:34,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:07:34,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:07:34,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:07:34,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:07:34,352 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) [2022-07-20 00:07:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:07:35,038 INFO L93 Difference]: Finished difference Result 8294 states and 12825 transitions. [2022-07-20 00:07:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:07:35,041 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 [2022-07-20 00:07:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:07:35,076 INFO L225 Difference]: With dead ends: 8294 [2022-07-20 00:07:35,076 INFO L226 Difference]: Without dead ends: 4594 [2022-07-20 00:07:35,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:07:35,115 INFO L413 NwaCegarLoop]: 5840 mSDtfsCounter, 1423 mSDsluCounter, 5620 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:07:35,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 11460 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 00:07:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2022-07-20 00:07:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4586. [2022-07-20 00:07:35,355 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) [2022-07-20 00:07:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4586 states to 4586 states and 7036 transitions. [2022-07-20 00:07:35,381 INFO L78 Accepts]: Start accepts. Automaton has 4586 states and 7036 transitions. Word has length 55 [2022-07-20 00:07:35,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:07:35,381 INFO L495 AbstractCegarLoop]: Abstraction has 4586 states and 7036 transitions. [2022-07-20 00:07:35,382 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) [2022-07-20 00:07:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4586 states and 7036 transitions. [2022-07-20 00:07:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-20 00:07:35,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:07:35,389 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] [2022-07-20 00:07:35,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 00:07:35,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:07:35,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:07:35,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:07:35,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2041421241, now seen corresponding path program 1 times [2022-07-20 00:07:35,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:07:35,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541186810] [2022-07-20 00:07:35,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:07:35,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:07:35,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:07:35,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 00:07:35,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 00:07:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:07:41,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:07:41,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:07:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 00:07:42,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:07:42,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:07:42,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541186810] [2022-07-20 00:07:42,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541186810] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:07:42,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:07:42,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:07:42,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59935249] [2022-07-20 00:07:42,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:07:42,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:07:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:07:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:07:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:07:42,140 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) [2022-07-20 00:07:42,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:07:42,895 INFO L93 Difference]: Finished difference Result 4599 states and 7048 transitions. [2022-07-20 00:07:42,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:07:42,896 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 [2022-07-20 00:07:42,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:07:42,923 INFO L225 Difference]: With dead ends: 4599 [2022-07-20 00:07:42,923 INFO L226 Difference]: Without dead ends: 4596 [2022-07-20 00:07:42,927 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 [2022-07-20 00:07:42,928 INFO L413 NwaCegarLoop]: 5664 mSDtfsCounter, 5610 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-07-20 00:07:42,929 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] [2022-07-20 00:07:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-07-20 00:07:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2022-07-20 00:07:43,057 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) [2022-07-20 00:07:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 7045 transitions. [2022-07-20 00:07:43,082 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 7045 transitions. Word has length 65 [2022-07-20 00:07:43,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:07:43,082 INFO L495 AbstractCegarLoop]: Abstraction has 4596 states and 7045 transitions. [2022-07-20 00:07:43,083 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) [2022-07-20 00:07:43,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 7045 transitions. [2022-07-20 00:07:43,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-20 00:07:43,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:07:43,084 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] [2022-07-20 00:07:43,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 00:07:43,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:07:43,299 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:07:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:07:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1141615170, now seen corresponding path program 1 times [2022-07-20 00:07:43,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:07:43,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502991346] [2022-07-20 00:07:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:07:43,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:07:43,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:07:43,304 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) [2022-07-20 00:07:43,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 00:07:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:07:48,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:07:48,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:07:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 00:07:49,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:07:49,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:07:49,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502991346] [2022-07-20 00:07:49,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502991346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:07:49,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:07:49,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:07:49,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978607093] [2022-07-20 00:07:49,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:07:49,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:07:49,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:07:49,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:07:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:07:49,189 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) [2022-07-20 00:07:50,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:07:50,043 INFO L93 Difference]: Finished difference Result 7023 states and 10662 transitions. [2022-07-20 00:07:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:07:50,043 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 [2022-07-20 00:07:50,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:07:50,088 INFO L225 Difference]: With dead ends: 7023 [2022-07-20 00:07:50,089 INFO L226 Difference]: Without dead ends: 6935 [2022-07-20 00:07:50,094 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 [2022-07-20 00:07:50,099 INFO L413 NwaCegarLoop]: 6389 mSDtfsCounter, 2264 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-07-20 00:07:50,100 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] [2022-07-20 00:07:50,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-07-20 00:07:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-07-20 00:07:50,374 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) [2022-07-20 00:07:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10544 transitions. [2022-07-20 00:07:50,397 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10544 transitions. Word has length 66 [2022-07-20 00:07:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:07:50,398 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10544 transitions. [2022-07-20 00:07:50,398 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) [2022-07-20 00:07:50,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10544 transitions. [2022-07-20 00:07:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-20 00:07:50,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:07:50,405 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] [2022-07-20 00:07:50,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 00:07:50,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:07:50,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:07:50,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:07:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 383961807, now seen corresponding path program 1 times [2022-07-20 00:07:50,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:07:50,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363497923] [2022-07-20 00:07:50,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:07:50,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:07:50,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:07:50,628 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) [2022-07-20 00:07:50,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 00:07:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:07:56,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 00:07:56,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:07:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-20 00:07:56,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:07:56,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:07:56,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363497923] [2022-07-20 00:07:56,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363497923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:07:56,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:07:56,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:07:56,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659056632] [2022-07-20 00:07:56,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:07:56,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:07:56,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:07:56,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:07:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:07:56,936 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) [2022-07-20 00:07:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:07:58,372 INFO L93 Difference]: Finished difference Result 13866 states and 21083 transitions. [2022-07-20 00:07:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:07:58,373 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 [2022-07-20 00:07:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:07:58,409 INFO L225 Difference]: With dead ends: 13866 [2022-07-20 00:07:58,410 INFO L226 Difference]: Without dead ends: 6939 [2022-07-20 00:07:58,436 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 [2022-07-20 00:07:58,438 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:07:58,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28249 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-20 00:07:58,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2022-07-20 00:07:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6928. [2022-07-20 00:07:58,604 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) [2022-07-20 00:07:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10533 transitions. [2022-07-20 00:07:58,632 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10533 transitions. Word has length 110 [2022-07-20 00:07:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:07:58,633 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10533 transitions. [2022-07-20 00:07:58,634 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) [2022-07-20 00:07:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10533 transitions. [2022-07-20 00:07:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-20 00:07:58,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:07:58,643 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] [2022-07-20 00:07:58,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 00:07:58,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:07:58,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:07:58,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:07:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1223170593, now seen corresponding path program 1 times [2022-07-20 00:07:58,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:07:58,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457714083] [2022-07-20 00:07:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:07:58,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:07:58,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:07:58,868 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) [2022-07-20 00:07:58,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 00:08:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:04,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 00:08:04,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-20 00:08:05,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:08:05,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:05,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457714083] [2022-07-20 00:08:05,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457714083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:05,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:05,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 00:08:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718551689] [2022-07-20 00:08:05,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:05,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 00:08:05,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 00:08:05,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 00:08:05,052 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) [2022-07-20 00:08:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:06,155 INFO L93 Difference]: Finished difference Result 14008 states and 21320 transitions. [2022-07-20 00:08:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 00:08:06,156 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 [2022-07-20 00:08:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:06,187 INFO L225 Difference]: With dead ends: 14008 [2022-07-20 00:08:06,187 INFO L226 Difference]: Without dead ends: 7106 [2022-07-20 00:08:06,208 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 [2022-07-20 00:08:06,209 INFO L413 NwaCegarLoop]: 5938 mSDtfsCounter, 3442 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:06,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 13810 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 00:08:06,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7106 states. [2022-07-20 00:08:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7106 to 6928. [2022-07-20 00:08:06,357 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) [2022-07-20 00:08:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10529 transitions. [2022-07-20 00:08:06,382 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10529 transitions. Word has length 115 [2022-07-20 00:08:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:06,382 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10529 transitions. [2022-07-20 00:08:06,382 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) [2022-07-20 00:08:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10529 transitions. [2022-07-20 00:08:06,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-20 00:08:06,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:06,387 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] [2022-07-20 00:08:06,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:06,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:06,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1157822766, now seen corresponding path program 1 times [2022-07-20 00:08:06,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:06,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108687390] [2022-07-20 00:08:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:06,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:06,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:06,624 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) [2022-07-20 00:08:06,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 00:08:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:12,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:08:12,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-20 00:08:12,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:08:12,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:12,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108687390] [2022-07-20 00:08:12,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108687390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:12,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:12,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:08:12,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928901592] [2022-07-20 00:08:12,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:12,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:08:12,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:12,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:08:12,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:08:12,791 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) [2022-07-20 00:08:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:13,024 INFO L93 Difference]: Finished difference Result 13858 states and 21066 transitions. [2022-07-20 00:08:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:08:13,027 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 [2022-07-20 00:08:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:13,056 INFO L225 Difference]: With dead ends: 13858 [2022-07-20 00:08:13,056 INFO L226 Difference]: Without dead ends: 6956 [2022-07-20 00:08:13,082 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 [2022-07-20 00:08:13,083 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 [2022-07-20 00:08:13,083 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] [2022-07-20 00:08:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-07-20 00:08:13,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6932. [2022-07-20 00:08:13,253 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) [2022-07-20 00:08:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 10533 transitions. [2022-07-20 00:08:13,281 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 10533 transitions. Word has length 119 [2022-07-20 00:08:13,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:13,282 INFO L495 AbstractCegarLoop]: Abstraction has 6932 states and 10533 transitions. [2022-07-20 00:08:13,282 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) [2022-07-20 00:08:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 10533 transitions. [2022-07-20 00:08:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-20 00:08:13,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:13,287 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] [2022-07-20 00:08:13,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:13,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:13,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:13,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:13,511 INFO L85 PathProgramCache]: Analyzing trace with hash 623672786, now seen corresponding path program 1 times [2022-07-20 00:08:13,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:13,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122816233] [2022-07-20 00:08:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:13,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:13,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:13,515 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) [2022-07-20 00:08:13,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 00:08:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:19,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 00:08:19,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-20 00:08:19,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:08:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-20 00:08:19,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:19,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122816233] [2022-07-20 00:08:19,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122816233] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:08:19,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:08:19,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-20 00:08:19,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398642695] [2022-07-20 00:08:19,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:08:19,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:08:19,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:19,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:08:19,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:08:19,997 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) [2022-07-20 00:08:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:20,413 INFO L93 Difference]: Finished difference Result 13890 states and 21106 transitions. [2022-07-20 00:08:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:08:20,414 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 [2022-07-20 00:08:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:20,436 INFO L225 Difference]: With dead ends: 13890 [2022-07-20 00:08:20,436 INFO L226 Difference]: Without dead ends: 6984 [2022-07-20 00:08:20,449 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 [2022-07-20 00:08:20,450 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:20,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 22591 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 00:08:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-07-20 00:08:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6960. [2022-07-20 00:08:20,586 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) [2022-07-20 00:08:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10569 transitions. [2022-07-20 00:08:20,606 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10569 transitions. Word has length 122 [2022-07-20 00:08:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:20,606 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10569 transitions. [2022-07-20 00:08:20,606 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) [2022-07-20 00:08:20,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10569 transitions. [2022-07-20 00:08:20,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-20 00:08:20,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:20,611 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] [2022-07-20 00:08:20,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:20,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:20,835 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:20,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1349838916, now seen corresponding path program 1 times [2022-07-20 00:08:20,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:20,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103701047] [2022-07-20 00:08:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:20,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:20,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:20,848 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) [2022-07-20 00:08:20,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 00:08:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:26,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:08:26,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-20 00:08:27,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:08:27,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:27,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103701047] [2022-07-20 00:08:27,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103701047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:27,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:27,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:08:27,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686373146] [2022-07-20 00:08:27,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:27,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:08:27,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:08:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:08:27,943 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) [2022-07-20 00:08:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:28,102 INFO L93 Difference]: Finished difference Result 13894 states and 21106 transitions. [2022-07-20 00:08:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:08:28,103 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 [2022-07-20 00:08:28,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:28,123 INFO L225 Difference]: With dead ends: 13894 [2022-07-20 00:08:28,124 INFO L226 Difference]: Without dead ends: 6960 [2022-07-20 00:08:28,138 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 [2022-07-20 00:08:28,139 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 [2022-07-20 00:08:28,139 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] [2022-07-20 00:08:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-07-20 00:08:28,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6960. [2022-07-20 00:08:28,326 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) [2022-07-20 00:08:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10565 transitions. [2022-07-20 00:08:28,344 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10565 transitions. Word has length 127 [2022-07-20 00:08:28,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:28,344 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10565 transitions. [2022-07-20 00:08:28,344 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) [2022-07-20 00:08:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10565 transitions. [2022-07-20 00:08:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-20 00:08:28,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:28,350 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] [2022-07-20 00:08:28,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:28,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:28,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash -355339667, now seen corresponding path program 1 times [2022-07-20 00:08:28,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:28,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139621211] [2022-07-20 00:08:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:28,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:28,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:28,582 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) [2022-07-20 00:08:28,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 00:08:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:34,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 00:08:34,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-07-20 00:08:34,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:08:34,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:34,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139621211] [2022-07-20 00:08:34,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139621211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:34,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:34,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:08:34,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210873863] [2022-07-20 00:08:34,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:34,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:08:34,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:34,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:08:34,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:08:34,637 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) [2022-07-20 00:08:35,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:35,636 INFO L93 Difference]: Finished difference Result 13893 states and 21097 transitions. [2022-07-20 00:08:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:08:35,637 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 [2022-07-20 00:08:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:35,705 INFO L225 Difference]: With dead ends: 13893 [2022-07-20 00:08:35,719 INFO L226 Difference]: Without dead ends: 6959 [2022-07-20 00:08:35,754 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 [2022-07-20 00:08:35,756 INFO L413 NwaCegarLoop]: 7393 mSDtfsCounter, 5554 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-07-20 00:08:35,756 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] [2022-07-20 00:08:35,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2022-07-20 00:08:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6959. [2022-07-20 00:08:36,040 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) [2022-07-20 00:08:36,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 10552 transitions. [2022-07-20 00:08:36,133 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 10552 transitions. Word has length 126 [2022-07-20 00:08:36,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:36,134 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 10552 transitions. [2022-07-20 00:08:36,134 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) [2022-07-20 00:08:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 10552 transitions. [2022-07-20 00:08:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-20 00:08:36,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:36,143 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] [2022-07-20 00:08:36,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:36,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:36,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash 173054243, now seen corresponding path program 1 times [2022-07-20 00:08:36,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:36,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026148345] [2022-07-20 00:08:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:36,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:36,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:36,368 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) [2022-07-20 00:08:36,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 00:08:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:42,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:08:42,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-20 00:08:42,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:08:42,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:42,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026148345] [2022-07-20 00:08:42,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026148345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:42,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:42,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:08:42,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295397038] [2022-07-20 00:08:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:42,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:08:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:08:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:08:42,543 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) [2022-07-20 00:08:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:43,834 INFO L93 Difference]: Finished difference Result 17231 states and 26013 transitions. [2022-07-20 00:08:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:08:43,834 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 [2022-07-20 00:08:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:43,931 INFO L225 Difference]: With dead ends: 17231 [2022-07-20 00:08:43,946 INFO L226 Difference]: Without dead ends: 10298 [2022-07-20 00:08:43,984 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 [2022-07-20 00:08:43,985 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 [2022-07-20 00:08:43,986 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] [2022-07-20 00:08:43,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2022-07-20 00:08:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10280. [2022-07-20 00:08:44,537 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) [2022-07-20 00:08:44,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10280 states to 10280 states and 15453 transitions. [2022-07-20 00:08:44,608 INFO L78 Accepts]: Start accepts. Automaton has 10280 states and 15453 transitions. Word has length 151 [2022-07-20 00:08:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:44,609 INFO L495 AbstractCegarLoop]: Abstraction has 10280 states and 15453 transitions. [2022-07-20 00:08:44,609 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) [2022-07-20 00:08:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 10280 states and 15453 transitions. [2022-07-20 00:08:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-20 00:08:44,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:44,649 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] [2022-07-20 00:08:44,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:44,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:44,871 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:44,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:44,872 INFO L85 PathProgramCache]: Analyzing trace with hash 5358041, now seen corresponding path program 1 times [2022-07-20 00:08:44,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:44,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268973719] [2022-07-20 00:08:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:44,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:44,879 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) [2022-07-20 00:08:44,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 00:08:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:08:51,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 00:08:51,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:08:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-20 00:08:52,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:08:52,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:08:52,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268973719] [2022-07-20 00:08:52,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268973719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:08:52,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:08:52,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 00:08:52,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983717553] [2022-07-20 00:08:52,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:08:52,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 00:08:52,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:08:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 00:08:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 00:08:52,018 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) [2022-07-20 00:08:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:08:54,110 INFO L93 Difference]: Finished difference Result 24384 states and 36610 transitions. [2022-07-20 00:08:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:08:54,111 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 [2022-07-20 00:08:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:08:54,235 INFO L225 Difference]: With dead ends: 24384 [2022-07-20 00:08:54,235 INFO L226 Difference]: Without dead ends: 14130 [2022-07-20 00:08:54,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 00:08:54,288 INFO L413 NwaCegarLoop]: 8360 mSDtfsCounter, 3882 mSDsluCounter, 13708 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-07-20 00:08:54,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3882 Valid, 22068 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-20 00:08:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14130 states. [2022-07-20 00:08:54,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14130 to 10282. [2022-07-20 00:08:54,820 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) [2022-07-20 00:08:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10282 states to 10282 states and 15454 transitions. [2022-07-20 00:08:54,893 INFO L78 Accepts]: Start accepts. Automaton has 10282 states and 15454 transitions. Word has length 167 [2022-07-20 00:08:54,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:08:54,893 INFO L495 AbstractCegarLoop]: Abstraction has 10282 states and 15454 transitions. [2022-07-20 00:08:54,893 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) [2022-07-20 00:08:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 10282 states and 15454 transitions. [2022-07-20 00:08:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-20 00:08:54,928 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:08:54,928 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] [2022-07-20 00:08:55,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 00:08:55,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:08:55,148 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:08:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:08:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash -900271211, now seen corresponding path program 1 times [2022-07-20 00:08:55,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:08:55,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914829724] [2022-07-20 00:08:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:08:55,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:08:55,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:08:55,153 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) [2022-07-20 00:08:55,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 00:09:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:02,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:09:02,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-20 00:09:02,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:02,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:02,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914829724] [2022-07-20 00:09:02,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914829724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:02,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:02,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:09:02,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161303317] [2022-07-20 00:09:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:02,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:09:02,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:02,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:09:02,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:02,744 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) [2022-07-20 00:09:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:03,088 INFO L93 Difference]: Finished difference Result 20539 states and 30878 transitions. [2022-07-20 00:09:03,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:09:03,089 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 [2022-07-20 00:09:03,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:03,171 INFO L225 Difference]: With dead ends: 20539 [2022-07-20 00:09:03,187 INFO L226 Difference]: Without dead ends: 10283 [2022-07-20 00:09:03,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:03,249 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 [2022-07-20 00:09:03,250 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] [2022-07-20 00:09:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-20 00:09:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10283. [2022-07-20 00:09:03,865 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) [2022-07-20 00:09:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 15455 transitions. [2022-07-20 00:09:03,936 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 15455 transitions. Word has length 196 [2022-07-20 00:09:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:03,937 INFO L495 AbstractCegarLoop]: Abstraction has 10283 states and 15455 transitions. [2022-07-20 00:09:03,937 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) [2022-07-20 00:09:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 15455 transitions. [2022-07-20 00:09:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-20 00:09:03,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:03,987 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] [2022-07-20 00:09:04,205 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forcibly destroying the process [2022-07-20 00:09:04,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:04,205 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:04,205 INFO L85 PathProgramCache]: Analyzing trace with hash -752536678, now seen corresponding path program 1 times [2022-07-20 00:09:04,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:04,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109667377] [2022-07-20 00:09:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:04,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:04,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:04,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:04,218 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) [2022-07-20 00:09:04,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 00:09:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:11,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 00:09:11,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-20 00:09:12,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:12,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:12,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109667377] [2022-07-20 00:09:12,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109667377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:12,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:12,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:09:12,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545859091] [2022-07-20 00:09:12,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:12,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:09:12,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:12,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:09:12,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:12,029 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) [2022-07-20 00:09:12,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:12,834 INFO L93 Difference]: Finished difference Result 22581 states and 34122 transitions. [2022-07-20 00:09:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:09:12,836 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 [2022-07-20 00:09:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:12,889 INFO L225 Difference]: With dead ends: 22581 [2022-07-20 00:09:12,889 INFO L226 Difference]: Without dead ends: 12324 [2022-07-20 00:09:12,920 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 [2022-07-20 00:09:12,921 INFO L413 NwaCegarLoop]: 6984 mSDtfsCounter, 1666 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:12,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 12057 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 00:09:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-07-20 00:09:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 10289. [2022-07-20 00:09:13,180 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) [2022-07-20 00:09:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 15461 transitions. [2022-07-20 00:09:13,211 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 15461 transitions. Word has length 198 [2022-07-20 00:09:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:13,212 INFO L495 AbstractCegarLoop]: Abstraction has 10289 states and 15461 transitions. [2022-07-20 00:09:13,212 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) [2022-07-20 00:09:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 15461 transitions. [2022-07-20 00:09:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-20 00:09:13,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:13,248 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] [2022-07-20 00:09:13,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:13,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:13,471 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1262009768, now seen corresponding path program 1 times [2022-07-20 00:09:13,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:13,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979511849] [2022-07-20 00:09:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:13,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:13,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:13,476 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) [2022-07-20 00:09:13,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 00:09:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:38,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-20 00:09:38,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:39,536 INFO L244 Elim1Store]: Index analysis took 408 ms [2022-07-20 00:09:40,947 INFO L356 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-07-20 00:09:40,948 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 [2022-07-20 00:09:40,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:40,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 00:09:41,326 INFO L244 Elim1Store]: Index analysis took 293 ms [2022-07-20 00:09:42,439 INFO L356 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-07-20 00:09:42,440 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 [2022-07-20 00:09:47,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 00:09:47,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-07-20 00:09:47,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 00:09:47,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-07-20 00:09:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-07-20 00:09:47,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:47,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:47,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979511849] [2022-07-20 00:09:47,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979511849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:47,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:47,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 00:09:47,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731158312] [2022-07-20 00:09:47,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:47,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:09:47,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:47,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:09:47,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 00:09:47,583 INFO L87 Difference]: Start difference. First operand 10289 states and 15461 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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) [2022-07-20 00:10:00,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:04,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:11,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:14,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:10:15,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []