./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-6c24879 [2022-07-12 13:03:24,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:03:24,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:03:24,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:03:24,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:03:24,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:03:24,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:03:24,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:03:24,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:03:24,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:03:24,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:03:24,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:03:24,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:03:24,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:03:24,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:03:24,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:03:24,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:03:24,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:03:24,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:03:24,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:03:24,633 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:03:24,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:03:24,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:03:24,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:03:24,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:03:24,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:03:24,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:03:24,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:03:24,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:03:24,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:03:24,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:03:24,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:03:24,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:03:24,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:03:24,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:03:24,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:03:24,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:03:24,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:03:24,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:03:24,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:03:24,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:03:24,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:03:24,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:03:24,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:03:24,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:03:24,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:03:24,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:03:24,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:03:24,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:03:24,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:03:24,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:03:24,691 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:03:24,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:03:24,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:03:24,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:03:24,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:03:24,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:03:24,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:03:24,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:03:24,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:03:24,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:03:24,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:03:24,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:03:24,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:03:24,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:03:24,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:03:24,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:03:24,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:03:24,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:03:24,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:03:24,696 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:03:24,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:03:24,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:03:24,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-12 13:03:24,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:03:24,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:03:24,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:03:24,951 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:03:24,951 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:03:24,952 INFO L432 ainManager$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 [2022-07-12 13:03:25,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac099d77/f2c284eabf1c45fab9943e4cad0e2adb/FLAG2d6b8678d [2022-07-12 13:03:25,719 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:03:25,719 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 [2022-07-12 13:03:25,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac099d77/f2c284eabf1c45fab9943e4cad0e2adb/FLAG2d6b8678d [2022-07-12 13:03:25,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac099d77/f2c284eabf1c45fab9943e4cad0e2adb [2022-07-12 13:03:25,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:03:25,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:03:25,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:03:25,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:03:25,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:03:25,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:03:25" (1/1) ... [2022-07-12 13:03:25,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d40c300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:25, skipping insertion in model container [2022-07-12 13:03:25,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:03:25" (1/1) ... [2022-07-12 13:03:25,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:03:25,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:03:26,507 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] [2022-07-12 13:03:28,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:03:28,313 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:03:28,405 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] [2022-07-12 13:03:28,643 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) [2022-07-12 13:03:28,653 INFO L158 Benchmark]: Toolchain (without parser) took 2862.18ms. Allocated memory was 90.2MB in the beginning and 146.8MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 54.4MB in the end (delta: 1.7MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2022-07-12 13:03:28,654 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:03:28,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2859.37ms. Allocated memory was 90.2MB in the beginning and 146.8MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 54.4MB in the end (delta: 1.7MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2022-07-12 13:03:28,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2859.37ms. Allocated memory was 90.2MB in the beginning and 146.8MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 54.4MB in the end (delta: 1.7MB). Peak memory consumption was 87.2MB. 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-?-6c24879 [2022-07-12 13:03:30,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:03:30,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:03:30,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:03:30,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:03:30,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:03:30,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:03:30,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:03:30,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:03:30,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:03:30,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:03:30,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:03:30,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:03:30,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:03:30,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:03:30,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:03:30,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:03:30,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:03:30,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:03:30,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:03:30,450 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:03:30,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:03:30,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:03:30,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:03:30,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:03:30,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:03:30,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:03:30,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:03:30,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:03:30,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:03:30,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:03:30,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:03:30,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:03:30,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:03:30,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:03:30,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:03:30,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:03:30,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:03:30,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:03:30,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:03:30,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:03:30,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:03:30,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:03:30,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:03:30,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:03:30,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:03:30,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:03:30,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:03:30,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:03:30,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:03:30,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:03:30,514 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:03:30,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:03:30,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:03:30,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:03:30,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:03:30,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:03:30,516 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:03:30,516 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:03:30,522 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:03:30,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:03:30,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:03:30,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:03:30,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:03:30,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:03:30,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:03:30,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:03:30,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:03:30,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:03:30,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:03:30,524 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:03:30,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:03:30,525 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:03:30,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:03:30,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:03:30,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:03:30,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-07-12 13:03:30,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:03:30,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:03:30,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:03:30,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:03:30,862 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:03:30,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-12 13:03:30,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8046dd787/18ca255bd25048c2839aad29c5b38d11/FLAG587c4a5a9 [2022-07-12 13:03:31,716 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:03:31,717 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 [2022-07-12 13:03:31,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8046dd787/18ca255bd25048c2839aad29c5b38d11/FLAG587c4a5a9 [2022-07-12 13:03:32,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8046dd787/18ca255bd25048c2839aad29c5b38d11 [2022-07-12 13:03:32,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:03:32,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:03:32,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:03:32,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:03:32,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:03:32,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:03:32" (1/1) ... [2022-07-12 13:03:32,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b8c1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:32, skipping insertion in model container [2022-07-12 13:03:32,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:03:32" (1/1) ... [2022-07-12 13:03:32,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:03:32,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:03:32,961 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] [2022-07-12 13:03:34,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:03:34,908 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:03:35,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:03:35,082 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] [2022-07-12 13:03:35,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:03:35,543 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:03:35,614 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] [2022-07-12 13:03:35,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:03:36,120 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:03:36,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36 WrapperNode [2022-07-12 13:03:36,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:03:36,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:03:36,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:03:36,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:03:36,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,510 INFO L137 Inliner]: procedures = 434, calls = 5126, calls flagged for inlining = 152, calls inlined = 136, statements flattened = 9807 [2022-07-12 13:03:36,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:03:36,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:03:36,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:03:36,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:03:36,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:03:36,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:03:36,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:03:36,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:03:36,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (1/1) ... [2022-07-12 13:03:36,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:03:36,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:03:36,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:03:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-12 13:03:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-12 13:03:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-12 13:03:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-12 13:03:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 13:03:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 13:03:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:03:37,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:03:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-12 13:03:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-12 13:03:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-12 13:03:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-12 13:03:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-12 13:03:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-12 13:03:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-12 13:03:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-12 13:03:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-12 13:03:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-12 13:03:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-12 13:03:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:03:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-12 13:03:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-12 13:03:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 13:03:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-12 13:03:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:03:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 13:03:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 13:03:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-12 13:03:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-12 13:03:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-12 13:03:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-12 13:03:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-12 13:03:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-12 13:03:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-12 13:03:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-12 13:03:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-12 13:03:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 13:03:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 13:03:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-12 13:03:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-12 13:03:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 13:03:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 13:03:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-12 13:03:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-12 13:03:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-12 13:03:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-12 13:03:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-12 13:03:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 13:03:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-12 13:03:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:03:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-12 13:03:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-12 13:03:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-12 13:03:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-12 13:03:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-12 13:03:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-12 13:03:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-12 13:03:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-12 13:03:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-12 13:03:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 13:03:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 13:03:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-12 13:03:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-12 13:03:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:03:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:03:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-12 13:03:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-12 13:03:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-12 13:03:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-12 13:03:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-12 13:03:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-12 13:03:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-12 13:03:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-12 13:03:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-12 13:03:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-12 13:03:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-12 13:03:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-12 13:03:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-12 13:03:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-12 13:03:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-12 13:03:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-12 13:03:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-12 13:03:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-12 13:03:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-12 13:03:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-12 13:03:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-12 13:03:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-12 13:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-12 13:03:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-12 13:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 13:03:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 13:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 13:03:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 13:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:03:37,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-12 13:03:37,037 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-12 13:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-12 13:03:37,037 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-12 13:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 13:03:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 13:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 13:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:03:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 13:03:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 13:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 13:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-12 13:03:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-12 13:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-12 13:03:37,040 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-12 13:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-12 13:03:37,040 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-12 13:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:03:37,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-12 13:03:37,041 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-12 13:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:03:37,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-12 13:03:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-12 13:03:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-12 13:03:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-12 13:03:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:03:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:03:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:03:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:03:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-12 13:03:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-12 13:03:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:03:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:03:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-12 13:03:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-12 13:03:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:03:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:03:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-12 13:03:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-12 13:03:37,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:03:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-12 13:03:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-12 13:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-12 13:03:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-12 13:03:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-12 13:03:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-12 13:03:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:03:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 13:03:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 13:03:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-12 13:03:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-12 13:03:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-12 13:03:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-12 13:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 13:03:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 13:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:03:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 13:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-12 13:03:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-12 13:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-12 13:03:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-12 13:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:03:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-12 13:03:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-12 13:03:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 13:03:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 13:03:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-12 13:03:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-12 13:03:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-12 13:03:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-12 13:03:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 13:03:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 13:03:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 13:03:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 13:03:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-12 13:03:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-12 13:03:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-12 13:03:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-12 13:03:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-12 13:03:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-12 13:03:37,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-12 13:03:37,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 13:03:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 13:03:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-12 13:03:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-12 13:03:37,063 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-12 13:03:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-12 13:03:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-12 13:03:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-12 13:03:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-12 13:03:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-12 13:03:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-12 13:03:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-12 13:03:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-12 13:03:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-12 13:03:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-12 13:03:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-12 13:03:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:03:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 13:03:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:03:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:03:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:03:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:03:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-12 13:03:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-12 13:03:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-12 13:03:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-12 13:03:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-12 13:03:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-12 13:03:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-12 13:03:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-12 13:03:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-12 13:03:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-12 13:03:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 13:03:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 13:03:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-12 13:03:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-12 13:03:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-12 13:03:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-12 13:03:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-12 13:03:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-12 13:03:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 13:03:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 13:03:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-12 13:03:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-12 13:03:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-12 13:03:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-12 13:03:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-12 13:03:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-12 13:03:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-12 13:03:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-12 13:03:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-12 13:03:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-12 13:03:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 13:03:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 13:03:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 13:03:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 13:03:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-12 13:03:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-12 13:03:38,266 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:03:38,269 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:03:39,210 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:03:39,475 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0bv64 != ~tmp___1~3;#res := ~ret~3; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0bv64 != ~tmp___1~3);#res := ~ret~3; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16bv32 == ~size; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2022-07-12 13:03:39,476 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10bv32 == ~size; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8bv32 == ~size; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := ~tmp___2~2[32:0]; [2022-07-12 13:03:39,477 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 [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2bv32 == ~size; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4bv32 == ~size; [2022-07-12 13:03:39,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: ~tmp___1~3 := #t~ret117;havoc #t~ret117; [2022-07-12 13:03:39,478 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 [2022-07-12 13:03:39,478 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: ~tmp___0~8 := #t~ret116;havoc #t~ret116; [2022-07-12 13:03:39,478 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 [2022-07-12 13:03:39,478 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2022-07-12 13:03:39,478 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2022-07-12 13:05:04,839 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2022-07-12 13:05:04,840 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; [2022-07-12 13:05:04,840 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; [2022-07-12 13:05:04,840 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; [2022-07-12 13:05:04,840 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; [2022-07-12 13:05:04,840 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; [2022-07-12 13:05:04,841 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; [2022-07-12 13:05:04,841 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2022-07-12 13:05:04,841 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; [2022-07-12 13:05:04,841 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; [2022-07-12 13:05:04,841 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 [2022-07-12 13:05:04,841 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; [2022-07-12 13:05:04,841 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; [2022-07-12 13:05:04,842 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2022-07-12 13:05:04,842 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2022-07-12 13:05:04,842 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 [2022-07-12 13:05:04,842 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; [2022-07-12 13:05:04,842 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; [2022-07-12 13:05:04,842 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; [2022-07-12 13:05:04,842 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2022-07-12 13:05:04,843 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2022-07-12 13:05:04,843 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 [2022-07-12 13:05:04,843 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]; [2022-07-12 13:05:04,843 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; [2022-07-12 13:05:04,843 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; [2022-07-12 13:05:05,061 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:05:05,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:05:05,110 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 13:05:05,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:05:05 BoogieIcfgContainer [2022-07-12 13:05:05,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:05:05,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:05:05,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:05:05,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:05:05,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:03:32" (1/3) ... [2022-07-12 13:05:05,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d8b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:05:05, skipping insertion in model container [2022-07-12 13:05:05,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:03:36" (2/3) ... [2022-07-12 13:05:05,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d8b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:05:05, skipping insertion in model container [2022-07-12 13:05:05,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:05:05" (3/3) ... [2022-07-12 13:05:05,126 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-07-12 13:05:05,139 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:05:05,139 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:05:05,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:05:05,258 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@47048fa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60a04e5f [2022-07-12 13:05:05,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:05:05,270 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) [2022-07-12 13:05:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 13:05:05,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:05,285 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] [2022-07-12 13:05:05,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 862318060, now seen corresponding path program 1 times [2022-07-12 13:05:05,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:05,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676148254] [2022-07-12 13:05:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:05,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:05,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:05,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:05,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:05:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:11,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:05:11,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-12 13:05:11,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:05:11,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:11,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676148254] [2022-07-12 13:05:11,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676148254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:05:11,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:05:11,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:05:11,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589017855] [2022-07-12 13:05:11,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:05:11,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:05:11,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:05:11,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:05:11,255 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) [2022-07-12 13:05:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:12,091 INFO L93 Difference]: Finished difference Result 8294 states and 12825 transitions. [2022-07-12 13:05:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:05:12,093 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 [2022-07-12 13:05:12,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:12,133 INFO L225 Difference]: With dead ends: 8294 [2022-07-12 13:05:12,134 INFO L226 Difference]: Without dead ends: 4594 [2022-07-12 13:05:12,155 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 [2022-07-12 13:05:12,158 INFO L413 NwaCegarLoop]: 5840 mSDtfsCounter, 1423 mSDsluCounter, 5620 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-12 13:05:12,159 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] [2022-07-12 13:05:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2022-07-12 13:05:12,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4586. [2022-07-12 13:05:12,370 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) [2022-07-12 13:05:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4586 states to 4586 states and 7036 transitions. [2022-07-12 13:05:12,501 INFO L78 Accepts]: Start accepts. Automaton has 4586 states and 7036 transitions. Word has length 55 [2022-07-12 13:05:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:12,502 INFO L495 AbstractCegarLoop]: Abstraction has 4586 states and 7036 transitions. [2022-07-12 13:05:12,502 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) [2022-07-12 13:05:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4586 states and 7036 transitions. [2022-07-12 13:05:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 13:05:12,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:12,506 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] [2022-07-12 13:05:12,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:12,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:12,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:12,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2041421241, now seen corresponding path program 1 times [2022-07-12 13:05:12,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:12,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873408045] [2022-07-12 13:05:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:12,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:12,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:05:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:18,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:05:18,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-12 13:05:18,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:05:18,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873408045] [2022-07-12 13:05:18,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873408045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:05:18,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:05:18,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:05:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94336007] [2022-07-12 13:05:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:05:18,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:05:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:05:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:05:18,710 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) [2022-07-12 13:05:19,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:19,540 INFO L93 Difference]: Finished difference Result 4599 states and 7048 transitions. [2022-07-12 13:05:19,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:05:19,541 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 [2022-07-12 13:05:19,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:19,572 INFO L225 Difference]: With dead ends: 4599 [2022-07-12 13:05:19,572 INFO L226 Difference]: Without dead ends: 4596 [2022-07-12 13:05:19,577 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 [2022-07-12 13:05:19,578 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 [2022-07-12 13:05:19,578 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] [2022-07-12 13:05:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-07-12 13:05:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2022-07-12 13:05:19,718 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) [2022-07-12 13:05:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 7045 transitions. [2022-07-12 13:05:19,757 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 7045 transitions. Word has length 65 [2022-07-12 13:05:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:19,757 INFO L495 AbstractCegarLoop]: Abstraction has 4596 states and 7045 transitions. [2022-07-12 13:05:19,757 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) [2022-07-12 13:05:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 7045 transitions. [2022-07-12 13:05:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 13:05:19,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:19,762 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] [2022-07-12 13:05:19,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:19,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:19,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1141615170, now seen corresponding path program 1 times [2022-07-12 13:05:19,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:19,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696265508] [2022-07-12 13:05:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:19,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:19,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:19,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:05:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:25,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:05:25,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-12 13:05:26,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:05:26,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:26,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696265508] [2022-07-12 13:05:26,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696265508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:05:26,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:05:26,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:05:26,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541432124] [2022-07-12 13:05:26,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:05:26,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:05:26,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:05:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:05:26,083 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) [2022-07-12 13:05:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:27,020 INFO L93 Difference]: Finished difference Result 7023 states and 10662 transitions. [2022-07-12 13:05:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:05:27,021 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 [2022-07-12 13:05:27,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:27,067 INFO L225 Difference]: With dead ends: 7023 [2022-07-12 13:05:27,067 INFO L226 Difference]: Without dead ends: 6935 [2022-07-12 13:05:27,074 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 [2022-07-12 13:05:27,076 INFO L413 NwaCegarLoop]: 6389 mSDtfsCounter, 2264 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 11977 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:05:27,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 11977 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 13:05:27,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-07-12 13:05:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-07-12 13:05:27,308 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) [2022-07-12 13:05:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10544 transitions. [2022-07-12 13:05:27,341 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10544 transitions. Word has length 66 [2022-07-12 13:05:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:27,342 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10544 transitions. [2022-07-12 13:05:27,342 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) [2022-07-12 13:05:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10544 transitions. [2022-07-12 13:05:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-12 13:05:27,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:27,351 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] [2022-07-12 13:05:27,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:27,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:27,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:27,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:27,571 INFO L85 PathProgramCache]: Analyzing trace with hash 383961807, now seen corresponding path program 1 times [2022-07-12 13:05:27,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:27,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968559441] [2022-07-12 13:05:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:27,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:27,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:27,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:27,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:05:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:32,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:05:32,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-12 13:05:33,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:05:33,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:33,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968559441] [2022-07-12 13:05:33,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968559441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:05:33,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:05:33,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:05:33,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459355592] [2022-07-12 13:05:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:05:33,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:05:33,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:33,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:05:33,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:05:33,243 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) [2022-07-12 13:05:34,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:34,639 INFO L93 Difference]: Finished difference Result 13866 states and 21083 transitions. [2022-07-12 13:05:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:05:34,640 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 [2022-07-12 13:05:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:34,679 INFO L225 Difference]: With dead ends: 13866 [2022-07-12 13:05:34,679 INFO L226 Difference]: Without dead ends: 6939 [2022-07-12 13:05:34,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:05:34,714 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:05:34,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28249 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 13:05:34,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2022-07-12 13:05:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6928. [2022-07-12 13:05:34,899 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) [2022-07-12 13:05:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10533 transitions. [2022-07-12 13:05:34,930 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10533 transitions. Word has length 110 [2022-07-12 13:05:34,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:34,932 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10533 transitions. [2022-07-12 13:05:34,932 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) [2022-07-12 13:05:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10533 transitions. [2022-07-12 13:05:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 13:05:34,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:34,942 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] [2022-07-12 13:05:35,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:35,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:35,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1223170593, now seen corresponding path program 1 times [2022-07-12 13:05:35,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:35,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344470735] [2022-07-12 13:05:35,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:35,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:35,169 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:35,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:05:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:41,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:05:41,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-12 13:05:41,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:05:41,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:41,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344470735] [2022-07-12 13:05:41,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344470735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:05:41,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:05:41,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 13:05:41,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690139876] [2022-07-12 13:05:41,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:05:41,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:05:41,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:41,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:05:41,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 13:05:41,220 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) [2022-07-12 13:05:42,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:42,481 INFO L93 Difference]: Finished difference Result 14008 states and 21320 transitions. [2022-07-12 13:05:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:05:42,482 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 [2022-07-12 13:05:42,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:42,527 INFO L225 Difference]: With dead ends: 14008 [2022-07-12 13:05:42,527 INFO L226 Difference]: Without dead ends: 7106 [2022-07-12 13:05:42,556 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 [2022-07-12 13:05:42,556 INFO L413 NwaCegarLoop]: 5938 mSDtfsCounter, 3442 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 13810 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:05:42,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 13810 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 13:05:42,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7106 states. [2022-07-12 13:05:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7106 to 6928. [2022-07-12 13:05:42,838 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) [2022-07-12 13:05:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10529 transitions. [2022-07-12 13:05:42,865 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10529 transitions. Word has length 115 [2022-07-12 13:05:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:42,866 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 10529 transitions. [2022-07-12 13:05:42,866 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) [2022-07-12 13:05:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10529 transitions. [2022-07-12 13:05:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 13:05:42,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:42,872 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] [2022-07-12 13:05:42,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:43,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:43,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:43,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:43,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1157822766, now seen corresponding path program 1 times [2022-07-12 13:05:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:43,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207618647] [2022-07-12 13:05:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:43,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:43,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:43,097 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:43,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:05:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:48,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:05:48,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-12 13:05:48,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:05:48,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:48,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207618647] [2022-07-12 13:05:48,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207618647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:05:48,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:05:48,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:05:48,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971473244] [2022-07-12 13:05:48,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:05:48,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:05:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:05:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:05:48,635 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) [2022-07-12 13:05:48,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:48,978 INFO L93 Difference]: Finished difference Result 13858 states and 21066 transitions. [2022-07-12 13:05:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:05:48,981 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 [2022-07-12 13:05:48,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:49,006 INFO L225 Difference]: With dead ends: 13858 [2022-07-12 13:05:49,006 INFO L226 Difference]: Without dead ends: 6956 [2022-07-12 13:05:49,030 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 [2022-07-12 13:05:49,031 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 [2022-07-12 13:05:49,031 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] [2022-07-12 13:05:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-07-12 13:05:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6932. [2022-07-12 13:05:49,201 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) [2022-07-12 13:05:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 10533 transitions. [2022-07-12 13:05:49,231 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 10533 transitions. Word has length 119 [2022-07-12 13:05:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:49,233 INFO L495 AbstractCegarLoop]: Abstraction has 6932 states and 10533 transitions. [2022-07-12 13:05:49,233 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) [2022-07-12 13:05:49,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 10533 transitions. [2022-07-12 13:05:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 13:05:49,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:49,239 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] [2022-07-12 13:05:49,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:49,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:49,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:49,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:49,456 INFO L85 PathProgramCache]: Analyzing trace with hash 623672786, now seen corresponding path program 1 times [2022-07-12 13:05:49,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:49,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60552480] [2022-07-12 13:05:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:49,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:49,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:49,461 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:49,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 13:05:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:05:54,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:05:54,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:05:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-12 13:05:55,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:05:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-12 13:05:55,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:05:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60552480] [2022-07-12 13:05:55,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60552480] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:05:55,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:05:55,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 13:05:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083797073] [2022-07-12 13:05:55,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:05:55,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:05:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:05:55,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:05:55,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:05:55,270 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) [2022-07-12 13:05:55,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:05:55,734 INFO L93 Difference]: Finished difference Result 13890 states and 21106 transitions. [2022-07-12 13:05:55,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:05:55,734 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 [2022-07-12 13:05:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:05:55,764 INFO L225 Difference]: With dead ends: 13890 [2022-07-12 13:05:55,765 INFO L226 Difference]: Without dead ends: 6984 [2022-07-12 13:05:55,783 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 [2022-07-12 13:05:55,785 INFO L413 NwaCegarLoop]: 5655 mSDtfsCounter, 28 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 22591 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:05:55,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 22591 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 13:05:55,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-07-12 13:05:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6960. [2022-07-12 13:05:55,958 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) [2022-07-12 13:05:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10569 transitions. [2022-07-12 13:05:55,984 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10569 transitions. Word has length 122 [2022-07-12 13:05:55,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:05:55,985 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10569 transitions. [2022-07-12 13:05:55,985 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) [2022-07-12 13:05:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10569 transitions. [2022-07-12 13:05:55,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 13:05:55,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:05:55,991 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] [2022-07-12 13:05:56,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:05:56,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:05:56,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:05:56,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:05:56,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1349838916, now seen corresponding path program 1 times [2022-07-12 13:05:56,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:05:56,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483741900] [2022-07-12 13:05:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:05:56,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:05:56,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:05:56,215 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:05:56,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 13:06:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:01,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:06:01,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-12 13:06:02,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:02,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483741900] [2022-07-12 13:06:02,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483741900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:02,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:02,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:06:02,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931594596] [2022-07-12 13:06:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:02,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:02,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:02,816 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) [2022-07-12 13:06:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:03,009 INFO L93 Difference]: Finished difference Result 13894 states and 21106 transitions. [2022-07-12 13:06:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:03,009 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 [2022-07-12 13:06:03,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:03,042 INFO L225 Difference]: With dead ends: 13894 [2022-07-12 13:06:03,042 INFO L226 Difference]: Without dead ends: 6960 [2022-07-12 13:06:03,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:03,064 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 [2022-07-12 13:06:03,064 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] [2022-07-12 13:06:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-07-12 13:06:03,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6960. [2022-07-12 13:06:03,259 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) [2022-07-12 13:06:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10565 transitions. [2022-07-12 13:06:03,381 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10565 transitions. Word has length 127 [2022-07-12 13:06:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:03,382 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10565 transitions. [2022-07-12 13:06:03,382 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) [2022-07-12 13:06:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10565 transitions. [2022-07-12 13:06:03,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-12 13:06:03,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:03,388 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] [2022-07-12 13:06:03,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:03,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:03,607 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash -355339667, now seen corresponding path program 1 times [2022-07-12 13:06:03,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:03,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978490879] [2022-07-12 13:06:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:03,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:03,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:03,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 13:06:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:09,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 13:06:09,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-07-12 13:06:10,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:10,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:10,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978490879] [2022-07-12 13:06:10,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978490879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:10,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:10,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:06:10,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973462142] [2022-07-12 13:06:10,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:10,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:10,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:10,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:10,090 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) [2022-07-12 13:06:10,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:10,984 INFO L93 Difference]: Finished difference Result 13893 states and 21097 transitions. [2022-07-12 13:06:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:10,984 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 [2022-07-12 13:06:10,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:11,006 INFO L225 Difference]: With dead ends: 13893 [2022-07-12 13:06:11,007 INFO L226 Difference]: Without dead ends: 6959 [2022-07-12 13:06:11,021 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 [2022-07-12 13:06:11,023 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 [2022-07-12 13:06:11,023 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] [2022-07-12 13:06:11,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2022-07-12 13:06:11,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6959. [2022-07-12 13:06:11,198 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) [2022-07-12 13:06:11,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 10552 transitions. [2022-07-12 13:06:11,220 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 10552 transitions. Word has length 126 [2022-07-12 13:06:11,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:11,221 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 10552 transitions. [2022-07-12 13:06:11,221 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) [2022-07-12 13:06:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 10552 transitions. [2022-07-12 13:06:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-12 13:06:11,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:11,237 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] [2022-07-12 13:06:11,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:11,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:11,451 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash 173054243, now seen corresponding path program 1 times [2022-07-12 13:06:11,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:11,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766608210] [2022-07-12 13:06:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:11,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:11,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:11,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:11,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 13:06:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:16,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:06:16,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:17,423 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-12 13:06:17,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:17,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:17,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766608210] [2022-07-12 13:06:17,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766608210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:17,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:17,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:06:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42056228] [2022-07-12 13:06:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:17,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:17,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:17,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:17,425 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) [2022-07-12 13:06:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:18,653 INFO L93 Difference]: Finished difference Result 17231 states and 26013 transitions. [2022-07-12 13:06:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:18,654 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 [2022-07-12 13:06:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:18,702 INFO L225 Difference]: With dead ends: 17231 [2022-07-12 13:06:18,703 INFO L226 Difference]: Without dead ends: 10298 [2022-07-12 13:06:18,727 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 [2022-07-12 13:06:18,727 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:18,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 11929 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 13:06:18,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2022-07-12 13:06:19,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10280. [2022-07-12 13:06:19,043 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) [2022-07-12 13:06:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10280 states to 10280 states and 15453 transitions. [2022-07-12 13:06:19,076 INFO L78 Accepts]: Start accepts. Automaton has 10280 states and 15453 transitions. Word has length 151 [2022-07-12 13:06:19,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:19,076 INFO L495 AbstractCegarLoop]: Abstraction has 10280 states and 15453 transitions. [2022-07-12 13:06:19,076 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) [2022-07-12 13:06:19,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10280 states and 15453 transitions. [2022-07-12 13:06:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-12 13:06:19,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:19,100 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] [2022-07-12 13:06:19,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:19,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:19,315 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:19,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 5358041, now seen corresponding path program 1 times [2022-07-12 13:06:19,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:19,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266492285] [2022-07-12 13:06:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:19,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:19,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:19,320 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:19,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 13:06:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:25,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:06:25,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-12 13:06:25,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:25,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:25,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266492285] [2022-07-12 13:06:25,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266492285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:25,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:25,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 13:06:25,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177197322] [2022-07-12 13:06:25,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:25,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:06:25,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:25,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:06:25,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 13:06:25,163 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) [2022-07-12 13:06:26,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:26,960 INFO L93 Difference]: Finished difference Result 24384 states and 36610 transitions. [2022-07-12 13:06:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:06:26,963 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 [2022-07-12 13:06:26,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:27,010 INFO L225 Difference]: With dead ends: 24384 [2022-07-12 13:06:27,010 INFO L226 Difference]: Without dead ends: 14130 [2022-07-12 13:06:27,038 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 [2022-07-12 13:06:27,038 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 [2022-07-12 13:06:27,039 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] [2022-07-12 13:06:27,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14130 states. [2022-07-12 13:06:27,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14130 to 10282. [2022-07-12 13:06:27,386 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) [2022-07-12 13:06:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10282 states to 10282 states and 15454 transitions. [2022-07-12 13:06:27,420 INFO L78 Accepts]: Start accepts. Automaton has 10282 states and 15454 transitions. Word has length 167 [2022-07-12 13:06:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:27,420 INFO L495 AbstractCegarLoop]: Abstraction has 10282 states and 15454 transitions. [2022-07-12 13:06:27,420 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) [2022-07-12 13:06:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 10282 states and 15454 transitions. [2022-07-12 13:06:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-12 13:06:27,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:27,445 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] [2022-07-12 13:06:27,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:27,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:27,663 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash -900271211, now seen corresponding path program 1 times [2022-07-12 13:06:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:27,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049214757] [2022-07-12 13:06:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:27,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:27,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:27,669 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:27,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 13:06:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:34,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:06:34,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:34,075 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-12 13:06:34,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:34,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:34,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049214757] [2022-07-12 13:06:34,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049214757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:34,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:34,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:06:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664876660] [2022-07-12 13:06:34,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:34,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:34,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:34,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:34,077 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) [2022-07-12 13:06:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:34,412 INFO L93 Difference]: Finished difference Result 20539 states and 30878 transitions. [2022-07-12 13:06:34,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:34,412 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 [2022-07-12 13:06:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:34,447 INFO L225 Difference]: With dead ends: 20539 [2022-07-12 13:06:34,447 INFO L226 Difference]: Without dead ends: 10283 [2022-07-12 13:06:34,471 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 [2022-07-12 13:06:34,472 INFO L413 NwaCegarLoop]: 5650 mSDtfsCounter, 0 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:34,472 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] [2022-07-12 13:06:34,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-12 13:06:34,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10283. [2022-07-12 13:06:34,765 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) [2022-07-12 13:06:34,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 15455 transitions. [2022-07-12 13:06:34,801 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 15455 transitions. Word has length 196 [2022-07-12 13:06:34,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:34,802 INFO L495 AbstractCegarLoop]: Abstraction has 10283 states and 15455 transitions. [2022-07-12 13:06:34,802 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) [2022-07-12 13:06:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 15455 transitions. [2022-07-12 13:06:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-12 13:06:34,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:34,825 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] [2022-07-12 13:06:34,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:35,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:35,052 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash -752536678, now seen corresponding path program 1 times [2022-07-12 13:06:35,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:35,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543880834] [2022-07-12 13:06:35,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:35,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:35,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:35,057 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:35,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 13:06:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:41,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:06:41,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-12 13:06:41,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:41,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:41,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543880834] [2022-07-12 13:06:41,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543880834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:41,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:41,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:06:41,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738624719] [2022-07-12 13:06:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:41,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:41,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:41,110 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) [2022-07-12 13:06:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:41,638 INFO L93 Difference]: Finished difference Result 22581 states and 34122 transitions. [2022-07-12 13:06:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:41,640 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 [2022-07-12 13:06:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:41,671 INFO L225 Difference]: With dead ends: 22581 [2022-07-12 13:06:41,671 INFO L226 Difference]: Without dead ends: 12324 [2022-07-12 13:06:41,685 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 [2022-07-12 13:06:41,686 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 [2022-07-12 13:06:41,686 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] [2022-07-12 13:06:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-07-12 13:06:41,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 10289. [2022-07-12 13:06:41,973 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) [2022-07-12 13:06:42,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10289 states to 10289 states and 15461 transitions. [2022-07-12 13:06:42,006 INFO L78 Accepts]: Start accepts. Automaton has 10289 states and 15461 transitions. Word has length 198 [2022-07-12 13:06:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:42,006 INFO L495 AbstractCegarLoop]: Abstraction has 10289 states and 15461 transitions. [2022-07-12 13:06:42,007 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) [2022-07-12 13:06:42,007 INFO L276 IsEmpty]: Start isEmpty. Operand 10289 states and 15461 transitions. [2022-07-12 13:06:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-12 13:06:42,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:42,029 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] [2022-07-12 13:06:42,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:42,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:42,244 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:42,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1262009768, now seen corresponding path program 1 times [2022-07-12 13:06:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:42,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518205671] [2022-07-12 13:06:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:42,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:42,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:42,283 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) [2022-07-12 13:06:42,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 13:07:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:02,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-12 13:07:02,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:03,287 INFO L244 Elim1Store]: Index analysis took 367 ms [2022-07-12 13:07:04,772 INFO L356 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-07-12 13:07:04,773 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 [2022-07-12 13:07:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:04,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:07:05,212 INFO L244 Elim1Store]: Index analysis took 344 ms [2022-07-12 13:07:06,545 INFO L356 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-07-12 13:07:06,546 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 [2022-07-12 13:07:12,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:07:12,083 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 [2022-07-12 13:07:12,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:07:12,115 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 [2022-07-12 13:07:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-07-12 13:07:12,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:12,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:12,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518205671] [2022-07-12 13:07:12,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518205671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:12,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:12,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 13:07:12,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713179074] [2022-07-12 13:07:12,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:12,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:07:12,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:12,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:07:12,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:07:12,212 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) [2022-07-12 13:07:24,037 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 []