./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-f4b24e3 [2022-07-14 00:44:18,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:44:18,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:44:18,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:44:18,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:44:18,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:44:18,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:44:18,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:44:18,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:44:18,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:44:18,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:44:18,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:44:18,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:44:18,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:44:18,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:44:18,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:44:18,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:44:18,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:44:18,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:44:18,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:44:18,395 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:44:18,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:44:18,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:44:18,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:44:18,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:44:18,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:44:18,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:44:18,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:44:18,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:44:18,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:44:18,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:44:18,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:44:18,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:44:18,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:44:18,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:44:18,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:44:18,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:44:18,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:44:18,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:44:18,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:44:18,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:44:18,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:44:18,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:44:18,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:44:18,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:44:18,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:44:18,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:44:18,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:44:18,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:44:18,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:44:18,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:44:18,448 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:44:18,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:44:18,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:44:18,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:44:18,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:44:18,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:44:18,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:44:18,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:44:18,450 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:44:18,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:44:18,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:44:18,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:44:18,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:44:18,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:44:18,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:44:18,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:44:18,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:44:18,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:44:18,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:44:18,452 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:44:18,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:44:18,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:44:18,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-14 00:44:18,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:44:18,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:44:18,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:44:18,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:44:18,758 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:44:18,759 INFO L432 ainManager$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 [2022-07-14 00:44:18,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7810169e/c918e1212a1c4bca8d0ce16e1022405e/FLAG6c4ed239b [2022-07-14 00:44:19,677 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:44:19,678 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 [2022-07-14 00:44:19,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7810169e/c918e1212a1c4bca8d0ce16e1022405e/FLAG6c4ed239b [2022-07-14 00:44:19,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7810169e/c918e1212a1c4bca8d0ce16e1022405e [2022-07-14 00:44:19,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:44:19,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:44:19,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:44:19,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:44:19,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:44:19,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:44:19" (1/1) ... [2022-07-14 00:44:19,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c05f21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:19, skipping insertion in model container [2022-07-14 00:44:19,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:44:19" (1/1) ... [2022-07-14 00:44:19,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:44:19,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:44:20,440 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] [2022-07-14 00:44:21,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:44:22,072 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:44:22,120 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] [2022-07-14 00:44:22,331 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) [2022-07-14 00:44:22,337 INFO L158 Benchmark]: Toolchain (without parser) took 2495.47ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 57.6MB in the beginning and 47.7MB in the end (delta: 9.9MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-07-14 00:44:22,338 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory was 92.3MB in the beginning and 92.2MB in the end (delta: 120.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:44:22,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2491.87ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 57.4MB in the beginning and 47.7MB in the end (delta: 9.7MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-07-14 00:44:22,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory was 92.3MB in the beginning and 92.2MB in the end (delta: 120.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2491.87ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 57.4MB in the beginning and 47.7MB in the end (delta: 9.7MB). Peak memory consumption was 61.6MB. 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-?-f4b24e3 [2022-07-14 00:44:24,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:44:24,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:44:24,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:44:24,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:44:24,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:44:24,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:44:24,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:44:24,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:44:24,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:44:24,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:44:24,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:44:24,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:44:24,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:44:24,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:44:24,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:44:24,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:44:24,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:44:24,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:44:24,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:44:24,153 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:44:24,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:44:24,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:44:24,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:44:24,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:44:24,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:44:24,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:44:24,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:44:24,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:44:24,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:44:24,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:44:24,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:44:24,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:44:24,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:44:24,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:44:24,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:44:24,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:44:24,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:44:24,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:44:24,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:44:24,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:44:24,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:44:24,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:44:24,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:44:24,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:44:24,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:44:24,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:44:24,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:44:24,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:44:24,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:44:24,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:44:24,210 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:44:24,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:44:24,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:44:24,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:44:24,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:44:24,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:44:24,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:44:24,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:44:24,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:44:24,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:44:24,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:44:24,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:44:24,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:44:24,213 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:44:24,213 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:44:24,213 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:44:24,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:44:24,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:44:24,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:44:24,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-14 00:44:24,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:44:24,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:44:24,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:44:24,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:44:24,571 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:44:24,572 INFO L432 ainManager$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 [2022-07-14 00:44:24,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18ecbbfa/6332d10130ae4631b8389d162f430d92/FLAGaa1810e23 [2022-07-14 00:44:25,399 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:44:25,399 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 [2022-07-14 00:44:25,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18ecbbfa/6332d10130ae4631b8389d162f430d92/FLAGaa1810e23 [2022-07-14 00:44:25,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18ecbbfa/6332d10130ae4631b8389d162f430d92 [2022-07-14 00:44:25,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:44:25,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:44:25,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:44:25,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:44:25,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:44:25,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:44:25" (1/1) ... [2022-07-14 00:44:25,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7c393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:25, skipping insertion in model container [2022-07-14 00:44:25,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:44:25" (1/1) ... [2022-07-14 00:44:25,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:44:25,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:44:26,201 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] [2022-07-14 00:44:27,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:44:27,748 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:44:27,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:44:27,834 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] [2022-07-14 00:44:28,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:44:28,092 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:44:28,128 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] [2022-07-14 00:44:28,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:44:28,585 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:44:28,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28 WrapperNode [2022-07-14 00:44:28,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:44:28,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:44:28,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:44:28,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:44:28,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:28,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,014 INFO L137 Inliner]: procedures = 434, calls = 5126, calls flagged for inlining = 152, calls inlined = 136, statements flattened = 9807 [2022-07-14 00:44:29,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:44:29,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:44:29,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:44:29,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:44:29,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:44:29,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:44:29,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:44:29,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:44:29,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (1/1) ... [2022-07-14 00:44:29,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:44:29,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:44:29,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:44:29,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:44:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-14 00:44:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-14 00:44:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-14 00:44:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-14 00:44:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-14 00:44:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-14 00:44:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:44:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:44:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-14 00:44:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-14 00:44:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-14 00:44:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-14 00:44:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-14 00:44:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-14 00:44:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-14 00:44:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-14 00:44:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-14 00:44:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-14 00:44:29,496 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-14 00:44:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:44:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:44:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-14 00:44:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-14 00:44:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-14 00:44:29,497 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-14 00:44:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:44:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:44:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-14 00:44:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-14 00:44:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:44:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:44:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 00:44:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 00:44:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:44:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 00:44:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:44:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:44:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-14 00:44:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-14 00:44:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:44:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-14 00:44:29,499 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-14 00:44:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-14 00:44:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-14 00:44:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-14 00:44:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-14 00:44:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-14 00:44:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-14 00:44:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-14 00:44:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-14 00:44:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:44:29,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:44:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-14 00:44:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-14 00:44:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-14 00:44:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-14 00:44:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-14 00:44:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-14 00:44:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-14 00:44:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-14 00:44:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-14 00:44:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-14 00:44:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-14 00:44:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-14 00:44:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:44:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:44:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-14 00:44:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-14 00:44:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:44:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:44:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-14 00:44:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-14 00:44:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-14 00:44:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-14 00:44:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-14 00:44:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-14 00:44:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-14 00:44:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-14 00:44:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-14 00:44:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-14 00:44:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-14 00:44:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-14 00:44:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-14 00:44:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-14 00:44:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-14 00:44:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 00:44:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 00:44:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-14 00:44:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-14 00:44:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:44:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:44:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-14 00:44:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-14 00:44:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-14 00:44:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-14 00:44:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-14 00:44:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-14 00:44:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-14 00:44:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-14 00:44:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:44:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-14 00:44:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-14 00:44:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-14 00:44:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-14 00:44:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-14 00:44:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:44:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-14 00:44:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-14 00:44:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-14 00:44:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-14 00:44:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-14 00:44:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-14 00:44:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-14 00:44:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-14 00:44:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-14 00:44:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-14 00:44:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-14 00:44:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-14 00:44:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-14 00:44:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-14 00:44:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-14 00:44:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-14 00:44:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-14 00:44:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-14 00:44:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-14 00:44:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-14 00:44:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-14 00:44:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-14 00:44:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-14 00:44:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-14 00:44:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-14 00:44:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-14 00:44:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:44:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:44:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:44:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:44:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:44:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-14 00:44:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-14 00:44:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-14 00:44:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-14 00:44:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:44:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:44:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:44:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:44:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:44:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 00:44:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-14 00:44:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-14 00:44:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-14 00:44:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-14 00:44:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-14 00:44:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-14 00:44:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:44:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:44:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-14 00:44:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-14 00:44:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:44:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:44:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-14 00:44:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-14 00:44:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-14 00:44:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-14 00:44:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:44:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:44:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:44:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:44:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-14 00:44:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-14 00:44:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 00:44:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 00:44:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-14 00:44:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-14 00:44:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:44:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:44:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-14 00:44:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-14 00:44:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-14 00:44:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-14 00:44:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:44:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-14 00:44:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-14 00:44:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-14 00:44:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-14 00:44:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:44:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 00:44:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 00:44:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-14 00:44:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-14 00:44:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-14 00:44:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-14 00:44:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 00:44:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 00:44:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:44:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:44:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-14 00:44:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-14 00:44:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:44:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-14 00:44:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-14 00:44:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:44:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:44:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-14 00:44:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-14 00:44:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-14 00:44:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-14 00:44:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:44:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:44:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 00:44:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 00:44:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-14 00:44:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-14 00:44:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-14 00:44:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-14 00:44:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-14 00:44:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-14 00:44:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-14 00:44:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:44:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:44:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-14 00:44:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-14 00:44:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-14 00:44:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-14 00:44:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-14 00:44:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-14 00:44:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-14 00:44:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-14 00:44:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-14 00:44:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-14 00:44:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-14 00:44:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-14 00:44:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-14 00:44:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-14 00:44:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:44:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:44:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:44:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:44:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:44:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:44:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-14 00:44:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-14 00:44:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-14 00:44:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-14 00:44:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-14 00:44:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-14 00:44:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-14 00:44:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-14 00:44:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-14 00:44:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-14 00:44:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 00:44:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 00:44:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-14 00:44:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-14 00:44:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-14 00:44:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-14 00:44:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-14 00:44:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-14 00:44:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:44:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:44:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-14 00:44:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-14 00:44:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-14 00:44:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-14 00:44:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-14 00:44:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-14 00:44:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-14 00:44:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-14 00:44:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-14 00:44:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-14 00:44:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:44:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:44:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 00:44:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 00:44:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-14 00:44:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-14 00:44:30,270 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:44:30,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:44:30,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:44:31,186 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0bv64 != ~tmp___1~3;#res := ~ret~3; [2022-07-14 00:44:31,186 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0bv64 != ~tmp___1~3);#res := ~ret~3; [2022-07-14 00:44:31,186 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2022-07-14 00:44:31,186 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2022-07-14 00:44:31,186 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2022-07-14 00:44:31,186 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16bv32 == ~size; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10bv32 == ~size; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8bv32 == ~size; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := ~tmp___2~2[32:0]; [2022-07-14 00:44:31,187 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 [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2bv32 == ~size; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4bv32 == ~size; [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: ~tmp___1~3 := #t~ret117;havoc #t~ret117; [2022-07-14 00:44:31,187 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 [2022-07-14 00:44:31,187 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: ~tmp___0~8 := #t~ret116;havoc #t~ret116; [2022-07-14 00:44:31,188 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 [2022-07-14 00:44:31,188 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2022-07-14 00:44:31,188 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2022-07-14 00:45:56,951 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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 [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 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; [2022-07-14 00:45:56,952 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2022-07-14 00:45:56,952 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2022-07-14 00:45:56,953 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 [2022-07-14 00:45:56,953 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; [2022-07-14 00:45:56,953 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; [2022-07-14 00:45:56,953 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; [2022-07-14 00:45:56,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2022-07-14 00:45:56,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2022-07-14 00:45:56,953 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 [2022-07-14 00:45:56,953 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]; [2022-07-14 00:45:56,953 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; [2022-07-14 00:45:56,954 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; [2022-07-14 00:45:57,174 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:45:57,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:45:57,201 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:45:57,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:45:57 BoogieIcfgContainer [2022-07-14 00:45:57,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:45:57,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:45:57,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:45:57,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:45:57,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:44:25" (1/3) ... [2022-07-14 00:45:57,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64595406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:45:57, skipping insertion in model container [2022-07-14 00:45:57,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:44:28" (2/3) ... [2022-07-14 00:45:57,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64595406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:45:57, skipping insertion in model container [2022-07-14 00:45:57,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:45:57" (3/3) ... [2022-07-14 00:45:57,212 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-14 00:45:57,223 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:45:57,223 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:45:57,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:45:57,325 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@68b151cf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3b45faee [2022-07-14 00:45:57,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:45:57,339 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) [2022-07-14 00:45:57,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 00:45:57,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:45:57,356 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] [2022-07-14 00:45:57,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:45:57,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:45:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash 862318060, now seen corresponding path program 1 times [2022-07-14 00:45:57,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:45:57,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665674451] [2022-07-14 00:45:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:45:57,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:45:57,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:45:57,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:45:57,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:46:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:03,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:46:03,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:46:03,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:03,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:03,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665674451] [2022-07-14 00:46:03,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665674451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:03,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:03,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:46:03,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384937182] [2022-07-14 00:46:03,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:46:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:03,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:46:03,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:03,781 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) [2022-07-14 00:46:04,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:04,538 INFO L93 Difference]: Finished difference Result 8294 states and 12825 transitions. [2022-07-14 00:46:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:46:04,540 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 [2022-07-14 00:46:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:04,581 INFO L225 Difference]: With dead ends: 8294 [2022-07-14 00:46:04,581 INFO L226 Difference]: Without dead ends: 4594 [2022-07-14 00:46:04,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:04,612 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 [2022-07-14 00:46:04,615 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] [2022-07-14 00:46:04,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2022-07-14 00:46:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4586. [2022-07-14 00:46:04,820 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) [2022-07-14 00:46:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4586 states to 4586 states and 7036 transitions. [2022-07-14 00:46:04,849 INFO L78 Accepts]: Start accepts. Automaton has 4586 states and 7036 transitions. Word has length 55 [2022-07-14 00:46:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:04,850 INFO L495 AbstractCegarLoop]: Abstraction has 4586 states and 7036 transitions. [2022-07-14 00:46:04,850 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) [2022-07-14 00:46:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4586 states and 7036 transitions. [2022-07-14 00:46:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-14 00:46:04,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:04,858 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] [2022-07-14 00:46:04,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:05,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:05,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:05,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:05,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2041421241, now seen corresponding path program 1 times [2022-07-14 00:46:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:05,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102308725] [2022-07-14 00:46:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:05,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:05,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:05,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:46:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:11,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:46:11,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:46:11,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:11,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:11,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102308725] [2022-07-14 00:46:11,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102308725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:11,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:11,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:46:11,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697133841] [2022-07-14 00:46:11,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:11,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:46:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:11,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:46:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:11,492 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) [2022-07-14 00:46:12,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:12,305 INFO L93 Difference]: Finished difference Result 4599 states and 7048 transitions. [2022-07-14 00:46:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:46:12,305 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 [2022-07-14 00:46:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:12,330 INFO L225 Difference]: With dead ends: 4599 [2022-07-14 00:46:12,330 INFO L226 Difference]: Without dead ends: 4596 [2022-07-14 00:46:12,333 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 [2022-07-14 00:46:12,334 INFO L413 NwaCegarLoop]: 5664 mSDtfsCounter, 5610 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:46:12,335 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] [2022-07-14 00:46:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-07-14 00:46:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2022-07-14 00:46:12,437 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) [2022-07-14 00:46:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 7045 transitions. [2022-07-14 00:46:12,467 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 7045 transitions. Word has length 65 [2022-07-14 00:46:12,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:12,468 INFO L495 AbstractCegarLoop]: Abstraction has 4596 states and 7045 transitions. [2022-07-14 00:46:12,469 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) [2022-07-14 00:46:12,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 7045 transitions. [2022-07-14 00:46:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-14 00:46:12,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:12,471 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] [2022-07-14 00:46:12,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:12,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:12,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:12,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:12,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1141615170, now seen corresponding path program 1 times [2022-07-14 00:46:12,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:12,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341971258] [2022-07-14 00:46:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:12,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:12,716 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:12,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:46:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:19,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:46:19,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:46:19,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:19,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:19,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341971258] [2022-07-14 00:46:19,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341971258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:19,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:19,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:46:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347600526] [2022-07-14 00:46:19,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:46:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:46:19,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:19,943 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) [2022-07-14 00:46:21,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:21,266 INFO L93 Difference]: Finished difference Result 7023 states and 10662 transitions. [2022-07-14 00:46:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:46:21,267 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 [2022-07-14 00:46:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:21,314 INFO L225 Difference]: With dead ends: 7023 [2022-07-14 00:46:21,314 INFO L226 Difference]: Without dead ends: 6935 [2022-07-14 00:46:21,322 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 [2022-07-14 00:46:21,325 INFO L413 NwaCegarLoop]: 6389 mSDtfsCounter, 2264 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:46:21,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 11977 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 00:46:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-07-14 00:46:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-07-14 00:46:21,535 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) [2022-07-14 00:46:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10544 transitions. [2022-07-14 00:46:21,582 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10544 transitions. Word has length 66 [2022-07-14 00:46:21,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:21,583 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10544 transitions. [2022-07-14 00:46:21,584 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) [2022-07-14 00:46:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10544 transitions. [2022-07-14 00:46:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-14 00:46:21,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:21,593 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] [2022-07-14 00:46:21,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-14 00:46:21,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:21,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash 383961807, now seen corresponding path program 1 times [2022-07-14 00:46:21,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:21,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366654619] [2022-07-14 00:46:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:21,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:21,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:21,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:46:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:27,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:46:27,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-14 00:46:27,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:27,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:27,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366654619] [2022-07-14 00:46:27,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366654619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:27,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:27,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:46:27,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292001337] [2022-07-14 00:46:27,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:27,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:46:27,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:27,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:46:27,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:46:27,995 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) [2022-07-14 00:46:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:29,341 INFO L93 Difference]: Finished difference Result 13866 states and 21083 transitions. [2022-07-14 00:46:29,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:46:29,342 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 [2022-07-14 00:46:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:29,367 INFO L225 Difference]: With dead ends: 13866 [2022-07-14 00:46:29,367 INFO L226 Difference]: Without dead ends: 6939 [2022-07-14 00:46:29,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:46:29,387 INFO L413 NwaCegarLoop]: 5651 mSDtfsCounter, 23 mSDsluCounter, 22598 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28249 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:46:29,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28249 Invalid, 26 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:46:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2022-07-14 00:46:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6928. [2022-07-14 00:46:29,608 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) [2022-07-14 00:46:29,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10533 transitions. [2022-07-14 00:46:29,648 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10533 transitions. Word has length 110 [2022-07-14 00:46:29,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:29,648 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10533 transitions. [2022-07-14 00:46:29,648 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) [2022-07-14 00:46:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10533 transitions. [2022-07-14 00:46:29,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-14 00:46:29,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:29,653 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] [2022-07-14 00:46:29,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:29,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:29,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1223170593, now seen corresponding path program 1 times [2022-07-14 00:46:29,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:29,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578129585] [2022-07-14 00:46:29,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:29,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:29,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:29,872 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:29,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:46:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:35,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:46:35,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-14 00:46:35,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:35,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:35,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578129585] [2022-07-14 00:46:35,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578129585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:35,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:35,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:46:35,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671224251] [2022-07-14 00:46:35,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:35,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:46:35,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:35,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:46:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:46:35,882 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) [2022-07-14 00:46:37,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:37,011 INFO L93 Difference]: Finished difference Result 14008 states and 21320 transitions. [2022-07-14 00:46:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:46:37,011 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 [2022-07-14 00:46:37,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:37,049 INFO L225 Difference]: With dead ends: 14008 [2022-07-14 00:46:37,049 INFO L226 Difference]: Without dead ends: 7106 [2022-07-14 00:46:37,074 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 [2022-07-14 00:46:37,075 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 [2022-07-14 00:46:37,076 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] [2022-07-14 00:46:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7106 states. [2022-07-14 00:46:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7106 to 6928. [2022-07-14 00:46:37,393 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) [2022-07-14 00:46:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10529 transitions. [2022-07-14 00:46:37,417 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10529 transitions. Word has length 115 [2022-07-14 00:46:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:37,418 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10529 transitions. [2022-07-14 00:46:37,418 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) [2022-07-14 00:46:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10529 transitions. [2022-07-14 00:46:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-14 00:46:37,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:37,423 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] [2022-07-14 00:46:37,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:37,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:37,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:37,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:37,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1157822766, now seen corresponding path program 1 times [2022-07-14 00:46:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:37,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043154631] [2022-07-14 00:46:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:37,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:37,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:37,644 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:37,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:46:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:43,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:46:43,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-14 00:46:43,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:43,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:43,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043154631] [2022-07-14 00:46:43,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043154631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:43,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:43,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:46:43,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472944079] [2022-07-14 00:46:43,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:43,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:46:43,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:43,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:46:43,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:43,976 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) [2022-07-14 00:46:44,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:44,195 INFO L93 Difference]: Finished difference Result 13858 states and 21066 transitions. [2022-07-14 00:46:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:46:44,197 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 [2022-07-14 00:46:44,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:44,222 INFO L225 Difference]: With dead ends: 13858 [2022-07-14 00:46:44,223 INFO L226 Difference]: Without dead ends: 6956 [2022-07-14 00:46:44,245 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 [2022-07-14 00:46:44,246 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 [2022-07-14 00:46:44,246 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] [2022-07-14 00:46:44,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-07-14 00:46:44,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6932. [2022-07-14 00:46:44,385 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) [2022-07-14 00:46:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 10533 transitions. [2022-07-14 00:46:44,405 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 10533 transitions. Word has length 119 [2022-07-14 00:46:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:44,406 INFO L495 AbstractCegarLoop]: Abstraction has 6932 states and 10533 transitions. [2022-07-14 00:46:44,406 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) [2022-07-14 00:46:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 10533 transitions. [2022-07-14 00:46:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 00:46:44,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:44,411 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] [2022-07-14 00:46:44,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:44,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:44,644 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:44,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:44,644 INFO L85 PathProgramCache]: Analyzing trace with hash 623672786, now seen corresponding path program 1 times [2022-07-14 00:46:44,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:44,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346266519] [2022-07-14 00:46:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:44,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:44,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:44,649 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:44,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:46:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:50,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:46:50,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-14 00:46:50,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:46:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-14 00:46:50,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:50,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346266519] [2022-07-14 00:46:50,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346266519] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:46:50,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:46:50,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 00:46:50,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059947625] [2022-07-14 00:46:50,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:46:50,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:46:50,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:50,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:46:50,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:46:50,798 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) [2022-07-14 00:46:51,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:51,222 INFO L93 Difference]: Finished difference Result 13890 states and 21106 transitions. [2022-07-14 00:46:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:46:51,222 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 [2022-07-14 00:46:51,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:51,242 INFO L225 Difference]: With dead ends: 13890 [2022-07-14 00:46:51,243 INFO L226 Difference]: Without dead ends: 6984 [2022-07-14 00:46:51,256 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 [2022-07-14 00:46:51,257 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 [2022-07-14 00:46:51,257 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] [2022-07-14 00:46:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-07-14 00:46:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6960. [2022-07-14 00:46:51,381 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) [2022-07-14 00:46:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10569 transitions. [2022-07-14 00:46:51,400 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10569 transitions. Word has length 122 [2022-07-14 00:46:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:51,401 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10569 transitions. [2022-07-14 00:46:51,401 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) [2022-07-14 00:46:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10569 transitions. [2022-07-14 00:46:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-14 00:46:51,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:51,407 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] [2022-07-14 00:46:51,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:51,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:51,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:51,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1349838916, now seen corresponding path program 1 times [2022-07-14 00:46:51,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:51,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435542119] [2022-07-14 00:46:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:51,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:51,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:51,636 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:51,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:46:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:57,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:46:57,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:46:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-14 00:46:58,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:46:58,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:46:58,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435542119] [2022-07-14 00:46:58,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435542119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:58,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:58,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:46:58,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114588050] [2022-07-14 00:46:58,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:58,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:46:58,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:46:58,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:46:58,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:58,893 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) [2022-07-14 00:46:59,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:59,173 INFO L93 Difference]: Finished difference Result 13894 states and 21106 transitions. [2022-07-14 00:46:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:46:59,174 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 [2022-07-14 00:46:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:59,212 INFO L225 Difference]: With dead ends: 13894 [2022-07-14 00:46:59,213 INFO L226 Difference]: Without dead ends: 6960 [2022-07-14 00:46:59,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:46:59,245 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 [2022-07-14 00:46:59,245 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] [2022-07-14 00:46:59,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-07-14 00:46:59,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6960. [2022-07-14 00:46:59,383 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) [2022-07-14 00:46:59,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10565 transitions. [2022-07-14 00:46:59,402 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10565 transitions. Word has length 127 [2022-07-14 00:46:59,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:59,403 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10565 transitions. [2022-07-14 00:46:59,403 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) [2022-07-14 00:46:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10565 transitions. [2022-07-14 00:46:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-14 00:46:59,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:59,410 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] [2022-07-14 00:46:59,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:46:59,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:46:59,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash -355339667, now seen corresponding path program 1 times [2022-07-14 00:46:59,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:46:59,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573993081] [2022-07-14 00:46:59,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:59,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:46:59,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:46:59,640 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:46:59,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:47:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:05,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:47:05,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-07-14 00:47:05,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:05,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:05,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573993081] [2022-07-14 00:47:05,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573993081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:05,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:05,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:47:05,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123385008] [2022-07-14 00:47:05,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:05,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:47:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:05,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:47:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:05,846 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) [2022-07-14 00:47:06,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:06,744 INFO L93 Difference]: Finished difference Result 13893 states and 21097 transitions. [2022-07-14 00:47:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:47:06,746 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 [2022-07-14 00:47:06,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:06,782 INFO L225 Difference]: With dead ends: 13893 [2022-07-14 00:47:06,782 INFO L226 Difference]: Without dead ends: 6959 [2022-07-14 00:47:06,798 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 [2022-07-14 00:47:06,799 INFO L413 NwaCegarLoop]: 7393 mSDtfsCounter, 5554 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 9628 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:06,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5554 Valid, 9628 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 00:47:06,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2022-07-14 00:47:06,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6959. [2022-07-14 00:47:06,941 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) [2022-07-14 00:47:06,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 10552 transitions. [2022-07-14 00:47:06,961 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 10552 transitions. Word has length 126 [2022-07-14 00:47:06,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:06,962 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 10552 transitions. [2022-07-14 00:47:06,962 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) [2022-07-14 00:47:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 10552 transitions. [2022-07-14 00:47:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-14 00:47:06,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:06,973 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] [2022-07-14 00:47:07,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:07,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:07,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:07,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash 173054243, now seen corresponding path program 1 times [2022-07-14 00:47:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:07,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606486912] [2022-07-14 00:47:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:07,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:07,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:07,204 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:07,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:47:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:13,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:47:13,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-14 00:47:13,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:13,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:13,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606486912] [2022-07-14 00:47:13,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606486912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:13,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:13,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:47:13,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903659989] [2022-07-14 00:47:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:13,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:47:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:13,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:47:13,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:13,648 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) [2022-07-14 00:47:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:14,890 INFO L93 Difference]: Finished difference Result 17231 states and 26013 transitions. [2022-07-14 00:47:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:47:14,891 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 [2022-07-14 00:47:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:14,930 INFO L225 Difference]: With dead ends: 17231 [2022-07-14 00:47:14,930 INFO L226 Difference]: Without dead ends: 10298 [2022-07-14 00:47:14,950 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 [2022-07-14 00:47:14,950 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 [2022-07-14 00:47:14,951 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] [2022-07-14 00:47:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2022-07-14 00:47:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10280. [2022-07-14 00:47:15,238 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) [2022-07-14 00:47:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10280 states to 10280 states and 15453 transitions. [2022-07-14 00:47:15,266 INFO L78 Accepts]: Start accepts. Automaton has 10280 states and 15453 transitions. Word has length 151 [2022-07-14 00:47:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:15,267 INFO L495 AbstractCegarLoop]: Abstraction has 10280 states and 15453 transitions. [2022-07-14 00:47:15,267 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) [2022-07-14 00:47:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 10280 states and 15453 transitions. [2022-07-14 00:47:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-14 00:47:15,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:15,285 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] [2022-07-14 00:47:15,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-14 00:47:15,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:15,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:15,512 INFO L85 PathProgramCache]: Analyzing trace with hash 5358041, now seen corresponding path program 1 times [2022-07-14 00:47:15,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:15,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77267683] [2022-07-14 00:47:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:15,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:15,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:15,517 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:15,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:47:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:21,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:47:21,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-14 00:47:21,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:21,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:21,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77267683] [2022-07-14 00:47:21,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77267683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:21,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:21,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:47:21,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829747069] [2022-07-14 00:47:21,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:21,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:47:21,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:21,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:47:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:47:21,780 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) [2022-07-14 00:47:23,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:23,505 INFO L93 Difference]: Finished difference Result 24384 states and 36610 transitions. [2022-07-14 00:47:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:47:23,506 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 [2022-07-14 00:47:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:23,599 INFO L225 Difference]: With dead ends: 24384 [2022-07-14 00:47:23,599 INFO L226 Difference]: Without dead ends: 14130 [2022-07-14 00:47:23,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:47:23,633 INFO L413 NwaCegarLoop]: 8360 mSDtfsCounter, 3882 mSDsluCounter, 13708 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:23,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3882 Valid, 22068 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-14 00:47:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14130 states. [2022-07-14 00:47:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14130 to 10282. [2022-07-14 00:47:24,107 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) [2022-07-14 00:47:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10282 states to 10282 states and 15454 transitions. [2022-07-14 00:47:24,136 INFO L78 Accepts]: Start accepts. Automaton has 10282 states and 15454 transitions. Word has length 167 [2022-07-14 00:47:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:24,136 INFO L495 AbstractCegarLoop]: Abstraction has 10282 states and 15454 transitions. [2022-07-14 00:47:24,136 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) [2022-07-14 00:47:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 10282 states and 15454 transitions. [2022-07-14 00:47:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-14 00:47:24,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:24,159 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] [2022-07-14 00:47:24,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:24,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:24,386 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:24,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:24,387 INFO L85 PathProgramCache]: Analyzing trace with hash -900271211, now seen corresponding path program 1 times [2022-07-14 00:47:24,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:24,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730655073] [2022-07-14 00:47:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:24,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:24,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:24,391 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:24,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:47:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:31,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:47:31,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-14 00:47:31,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:31,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:31,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730655073] [2022-07-14 00:47:31,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730655073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:31,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:31,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:47:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312795888] [2022-07-14 00:47:31,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:31,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:47:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:31,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:47:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:31,093 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) [2022-07-14 00:47:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:31,349 INFO L93 Difference]: Finished difference Result 20539 states and 30878 transitions. [2022-07-14 00:47:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:47:31,350 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 [2022-07-14 00:47:31,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:31,384 INFO L225 Difference]: With dead ends: 20539 [2022-07-14 00:47:31,384 INFO L226 Difference]: Without dead ends: 10283 [2022-07-14 00:47:31,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:31,409 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 0 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-14 00:47:31,410 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] [2022-07-14 00:47:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-14 00:47:31,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10283. [2022-07-14 00:47:31,645 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) [2022-07-14 00:47:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 15455 transitions. [2022-07-14 00:47:31,676 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 15455 transitions. Word has length 196 [2022-07-14 00:47:31,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:31,677 INFO L495 AbstractCegarLoop]: Abstraction has 10283 states and 15455 transitions. [2022-07-14 00:47:31,678 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) [2022-07-14 00:47:31,678 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 15455 transitions. [2022-07-14 00:47:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-14 00:47:31,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:31,813 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] [2022-07-14 00:47:31,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:32,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:32,024 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:32,025 INFO L85 PathProgramCache]: Analyzing trace with hash -752536678, now seen corresponding path program 1 times [2022-07-14 00:47:32,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:32,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114631085] [2022-07-14 00:47:32,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:32,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:32,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:32,029 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:32,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:47:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:38,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:47:38,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-14 00:47:38,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:38,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:38,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114631085] [2022-07-14 00:47:38,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114631085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:38,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:38,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:47:38,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360304946] [2022-07-14 00:47:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:38,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:47:38,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:47:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:38,662 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) [2022-07-14 00:47:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:39,180 INFO L93 Difference]: Finished difference Result 22581 states and 34122 transitions. [2022-07-14 00:47:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:47:39,182 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 [2022-07-14 00:47:39,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:39,235 INFO L225 Difference]: With dead ends: 22581 [2022-07-14 00:47:39,235 INFO L226 Difference]: Without dead ends: 12324 [2022-07-14 00:47:39,264 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 [2022-07-14 00:47:39,265 INFO L413 NwaCegarLoop]: 6984 mSDtfsCounter, 1666 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 12057 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:39,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 12057 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:47:39,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-07-14 00:47:39,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 10289. [2022-07-14 00:47:39,545 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) [2022-07-14 00:47:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 15461 transitions. [2022-07-14 00:47:39,574 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 15461 transitions. Word has length 198 [2022-07-14 00:47:39,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:39,574 INFO L495 AbstractCegarLoop]: Abstraction has 10289 states and 15461 transitions. [2022-07-14 00:47:39,574 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) [2022-07-14 00:47:39,575 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 15461 transitions. [2022-07-14 00:47:39,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-14 00:47:39,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:39,593 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] [2022-07-14 00:47:39,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:39,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:39,820 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:39,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:39,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1262009768, now seen corresponding path program 1 times [2022-07-14 00:47:39,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:39,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380118680] [2022-07-14 00:47:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:39,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:39,844 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:39,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 00:48:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:02,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-14 00:48:02,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:02,900 INFO L244 Elim1Store]: Index analysis took 291 ms [2022-07-14 00:48:04,127 INFO L356 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-07-14 00:48:04,127 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 [2022-07-14 00:48:04,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:48:04,495 INFO L244 Elim1Store]: Index analysis took 271 ms [2022-07-14 00:48:05,501 INFO L356 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-07-14 00:48:05,501 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 [2022-07-14 00:48:11,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 00:48:11,466 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 [2022-07-14 00:48:11,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 00:48:11,492 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 [2022-07-14 00:48:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-07-14 00:48:11,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:11,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:11,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380118680] [2022-07-14 00:48:11,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380118680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:11,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:11,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:48:11,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648149437] [2022-07-14 00:48:11,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:11,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:48:11,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:11,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:48:11,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:48:11,579 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) [2022-07-14 00:48:23,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:29,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:37,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:40,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []