./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.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 d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:26:40,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:26:40,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:26:40,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:26:40,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:26:40,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:26:40,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:26:40,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:26:40,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:26:40,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:26:40,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:26:40,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:26:40,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:26:40,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:26:40,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:26:40,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:26:40,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:26:40,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:26:40,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:26:40,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:26:40,093 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:26:40,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:26:40,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:26:40,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:26:40,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:26:40,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:26:40,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:26:40,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:26:40,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:26:40,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:26:40,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:26:40,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:26:40,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:26:40,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:26:40,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:26:40,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:26:40,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:26:40,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:26:40,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:26:40,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:26:40,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:26:40,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:26:40,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:26:40,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:26:40,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:26:40,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:26:40,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:26:40,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:26:40,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:26:40,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:26:40,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:26:40,134 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:26:40,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:26:40,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:26:40,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:26:40,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:26:40,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:26:40,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:26:40,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:26:40,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:26:40,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:26:40,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:26:40,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:26:40,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:26:40,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:26:40,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:26:40,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:26:40,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:26:40,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:26:40,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:26:40,138 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:26:40,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:26:40,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:26:40,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-23 00:26:40,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:26:40,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:26:40,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:26:40,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:26:40,395 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:26:40,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:26:40,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2d281dc/6561cd213c44421f8c938dca54f7e7ae/FLAG3161c2715 [2022-07-23 00:26:41,069 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:26:41,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:26:41,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2d281dc/6561cd213c44421f8c938dca54f7e7ae/FLAG3161c2715 [2022-07-23 00:26:41,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2d281dc/6561cd213c44421f8c938dca54f7e7ae [2022-07-23 00:26:41,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:26:41,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:26:41,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:26:41,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:26:41,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:26:41,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:26:41" (1/1) ... [2022-07-23 00:26:41,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac6c176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:41, skipping insertion in model container [2022-07-23 00:26:41,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:26:41" (1/1) ... [2022-07-23 00:26:41,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:26:41,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:26:43,286 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-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-23 00:26:43,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:26:43,418 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:26:43,699 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 00:26:43,704 INFO L158 Benchmark]: Toolchain (without parser) took 2525.89ms. Allocated memory was 104.9MB in the beginning and 174.1MB in the end (delta: 69.2MB). Free memory was 54.9MB in the beginning and 78.9MB in the end (delta: -24.0MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-07-23 00:26:43,705 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 83.9MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 23.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 00:26:43,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2523.23ms. Allocated memory was 104.9MB in the beginning and 174.1MB in the end (delta: 69.2MB). Free memory was 54.4MB in the beginning and 78.9MB in the end (delta: -24.5MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-07-23 00:26:43,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 83.9MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 23.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2523.23ms. Allocated memory was 104.9MB in the beginning and 174.1MB in the end (delta: 69.2MB). Free memory was 54.4MB in the beginning and 78.9MB in the end (delta: -24.5MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.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 d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:26:45,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:26:45,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:26:45,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:26:45,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:26:45,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:26:45,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:26:45,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:26:45,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:26:45,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:26:45,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:26:45,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:26:45,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:26:45,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:26:45,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:26:45,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:26:45,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:26:45,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:26:45,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:26:45,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:26:45,329 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:26:45,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:26:45,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:26:45,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:26:45,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:26:45,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:26:45,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:26:45,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:26:45,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:26:45,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:26:45,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:26:45,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:26:45,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:26:45,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:26:45,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:26:45,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:26:45,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:26:45,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:26:45,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:26:45,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:26:45,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:26:45,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:26:45,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 00:26:45,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:26:45,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:26:45,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:26:45,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:26:45,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:26:45,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:26:45,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:26:45,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:26:45,376 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:26:45,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 00:26:45,377 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 00:26:45,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:26:45,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:26:45,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:26:45,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:26:45,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:26:45,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:26:45,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:26:45,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:26:45,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:26:45,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:26:45,379 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 00:26:45,379 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 00:26:45,379 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:26:45,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:26:45,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:26:45,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 00:26:45,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-23 00:26:45,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:26:45,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:26:45,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:26:45,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:26:45,644 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:26:45,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:26:45,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be4f4cc7/96e9b0fa0d724109b33b221f265b4667/FLAG5c8294c06 [2022-07-23 00:26:46,415 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:26:46,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:26:46,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be4f4cc7/96e9b0fa0d724109b33b221f265b4667/FLAG5c8294c06 [2022-07-23 00:26:46,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2be4f4cc7/96e9b0fa0d724109b33b221f265b4667 [2022-07-23 00:26:46,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:26:46,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:26:46,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:26:46,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:26:46,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:26:46,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:26:46" (1/1) ... [2022-07-23 00:26:46,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79503b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:46, skipping insertion in model container [2022-07-23 00:26:46,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:26:46" (1/1) ... [2022-07-23 00:26:46,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:26:46,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:26:48,449 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-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-23 00:26:48,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:26:48,574 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 00:26:48,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:26:48,970 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-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-23 00:26:48,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:26:49,016 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:26:49,310 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-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-07-23 00:26:49,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:26:49,429 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:26:49,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49 WrapperNode [2022-07-23 00:26:49,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:26:49,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:26:49,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:26:49,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:26:49,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,781 INFO L137 Inliner]: procedures = 445, calls = 5265, calls flagged for inlining = 154, calls inlined = 136, statements flattened = 9918 [2022-07-23 00:26:49,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:26:49,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:26:49,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:26:49,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:26:49,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:49,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:50,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:50,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:26:50,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:26:50,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:26:50,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:26:50,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (1/1) ... [2022-07-23 00:26:50,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:26:50,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:26:50,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 00:26:50,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 00:26:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-23 00:26:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-23 00:26:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-23 00:26:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-23 00:26:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:26:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:26:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-23 00:26:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-23 00:26:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:26:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:26:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-23 00:26:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-23 00:26:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-23 00:26:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-23 00:26:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-23 00:26:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-23 00:26:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-23 00:26:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-23 00:26:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-23 00:26:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-23 00:26:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-23 00:26:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:26:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:26:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-23 00:26:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-23 00:26:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-23 00:26:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-23 00:26:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 00:26:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 00:26:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-23 00:26:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-23 00:26:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:26:50,189 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:26:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-23 00:26:50,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-23 00:26:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:26:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 00:26:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 00:26:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 00:26:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-23 00:26:50,190 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-23 00:26:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 00:26:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-23 00:26:50,190 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-23 00:26:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-23 00:26:50,191 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-23 00:26:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-23 00:26:50,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-23 00:26:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-23 00:26:50,192 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-23 00:26:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-23 00:26:50,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-23 00:26:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:26:50,192 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:26:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-23 00:26:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-23 00:26:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-23 00:26:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-23 00:26:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-23 00:26:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-23 00:26:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-23 00:26:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-23 00:26:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-23 00:26:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-23 00:26:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 00:26:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 00:26:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-23 00:26:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-23 00:26:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:26:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:26:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-23 00:26:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-23 00:26:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-23 00:26:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-23 00:26:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-23 00:26:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-23 00:26:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-23 00:26:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-23 00:26:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-23 00:26:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-23 00:26:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-23 00:26:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-23 00:26:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-23 00:26:50,197 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-23 00:26:50,197 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-23 00:26:50,197 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 00:26:50,197 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 00:26:50,198 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-23 00:26:50,198 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-23 00:26:50,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:26:50,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:26:50,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:26:50,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:26:50,199 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-23 00:26:50,199 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-23 00:26:50,199 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-23 00:26:50,199 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-23 00:26:50,199 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-23 00:26:50,199 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-23 00:26:50,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-23 00:26:50,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-23 00:26:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:26:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-23 00:26:50,200 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-23 00:26:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-23 00:26:50,200 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-23 00:26:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:26:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:26:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:26:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 00:26:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 00:26:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-23 00:26:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-23 00:26:50,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 00:26:50,204 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-23 00:26:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-23 00:26:50,205 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-23 00:26:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-23 00:26:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-23 00:26:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-23 00:26:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-23 00:26:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-23 00:26:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-23 00:26:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-23 00:26:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-23 00:26:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-23 00:26:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-23 00:26:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-23 00:26:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-23 00:26:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-23 00:26:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-23 00:26:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-23 00:26:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-23 00:26:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-23 00:26:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-23 00:26:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-23 00:26:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-23 00:26:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-23 00:26:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-23 00:26:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-23 00:26:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-23 00:26:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-23 00:26:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 00:26:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:26:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:26:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-23 00:26:50,211 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-23 00:26:50,212 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-23 00:26:50,212 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 00:26:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:26:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:26:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:26:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 00:26:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 00:26:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-23 00:26:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-23 00:26:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-23 00:26:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-23 00:26:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-23 00:26:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-23 00:26:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-23 00:26:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:26:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:26:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-23 00:26:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-23 00:26:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:26:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:26:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-23 00:26:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-23 00:26:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-23 00:26:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-23 00:26:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:26:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:26:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:26:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:26:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-23 00:26:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-23 00:26:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 00:26:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 00:26:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-23 00:26:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-23 00:26:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:26:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:26:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-23 00:26:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-23 00:26:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-23 00:26:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-23 00:26:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:26:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-23 00:26:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-23 00:26:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-23 00:26:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-23 00:26:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:26:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 00:26:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 00:26:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-23 00:26:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-23 00:26:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-23 00:26:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-23 00:26:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-23 00:26:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-23 00:26:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:26:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-23 00:26:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 00:26:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 00:26:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 00:26:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 00:26:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-23 00:26:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-23 00:26:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-23 00:26:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-23 00:26:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:26:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-23 00:26:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-23 00:26:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 00:26:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 00:26:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-23 00:26:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-23 00:26:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-23 00:26:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-23 00:26:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-23 00:26:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-23 00:26:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 00:26:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 00:26:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-23 00:26:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-23 00:26:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-23 00:26:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-23 00:26:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-23 00:26:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-23 00:26:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-23 00:26:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-23 00:26:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-23 00:26:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-23 00:26:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-23 00:26:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-23 00:26:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-23 00:26:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-23 00:26:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-23 00:26:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-23 00:26:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-23 00:26:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 00:26:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 00:26:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:26:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:26:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-23 00:26:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-23 00:26:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-23 00:26:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-23 00:26:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-23 00:26:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-23 00:26:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-23 00:26:50,229 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-23 00:26:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:26:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:26:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-23 00:26:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-23 00:26:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-23 00:26:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-23 00:26:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-23 00:26:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-23 00:26:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-23 00:26:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-23 00:26:50,230 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-23 00:26:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-23 00:26:50,231 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-23 00:26:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-23 00:26:50,231 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-23 00:26:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-23 00:26:50,231 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-23 00:26:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-23 00:26:50,231 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-23 00:26:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-23 00:26:50,231 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-23 00:26:50,231 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-23 00:26:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-23 00:26:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-23 00:26:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:26:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:26:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 00:26:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 00:26:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-23 00:26:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-23 00:26:51,151 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:26:51,153 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:26:51,915 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:26:52,097 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0bv64 != ~tmp___1~2;#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0bv64 != ~tmp___1~2);#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16bv32 == ~size; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10bv32 == ~size; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2bv32 == ~size; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8bv32 == ~size; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843-1: ~tmp___2~1 := #t~ret123;havoc #t~ret123;#res := ~tmp___2~1[32:0]; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843: SUMMARY for call #t~ret123 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4bv32 == ~size; [2022-07-23 00:26:52,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: ~tmp___1~2 := #t~ret122;havoc #t~ret122; [2022-07-23 00:26:52,099 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833: SUMMARY for call #t~ret122 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:26:52,099 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: ~tmp___0~8 := #t~ret121;havoc #t~ret121; [2022-07-23 00:26:52,099 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821: SUMMARY for call #t~ret121 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:26:52,099 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2022-07-23 00:26:52,099 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2022-07-23 00:28:16,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 4bv32 == __copy_from_user_~size#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 8bv32 == __copy_from_user_~size#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 10bv32 == __copy_from_user_~size#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 16bv32 == __copy_from_user_~size#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761-1: __copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret116#1;havoc __copy_from_user_#t~ret116#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761: SUMMARY for call __copy_from_user_#t~ret116#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume 0bv64 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume !(0bv64 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774: SUMMARY for call __copy_from_user_#t~ret117#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774-1: __copy_from_user_~tmp___1~1#1 := __copy_from_user_#t~ret117#1;havoc __copy_from_user_#t~ret117#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume 0bv64 != __copy_from_user_~tmp___1~1#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume !(0bv64 != __copy_from_user_~tmp___1~1#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:16,973 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2022-07-23 00:28:16,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2022-07-23 00:28:16,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784: SUMMARY for call __copy_from_user_#t~ret118#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-07-23 00:28:16,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784-1: __copy_from_user_~tmp___2~0#1 := __copy_from_user_#t~ret118#1;havoc __copy_from_user_#t~ret118#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~0#1[32:0]; [2022-07-23 00:28:16,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 2bv32 == __copy_from_user_~size#1; [2022-07-23 00:28:16,974 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-07-23 00:28:17,156 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:28:17,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:28:17,189 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 00:28:17,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:28:17 BoogieIcfgContainer [2022-07-23 00:28:17,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:28:17,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:28:17,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:28:17,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:28:17,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:26:46" (1/3) ... [2022-07-23 00:28:17,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3915e19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:28:17, skipping insertion in model container [2022-07-23 00:28:17,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:26:49" (2/3) ... [2022-07-23 00:28:17,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3915e19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:28:17, skipping insertion in model container [2022-07-23 00:28:17,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:28:17" (3/3) ... [2022-07-23 00:28:17,202 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:28:17,211 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:28:17,212 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:28:17,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:28:17,297 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@5fe94781, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4f91f9b8 [2022-07-23 00:28:17,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:28:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 3729 states, 2844 states have (on average 1.499648382559775) internal successors, (4265), 2934 states have internal predecessors, (4265), 750 states have call successors, (750), 134 states have call predecessors, (750), 133 states have return successors, (742), 724 states have call predecessors, (742), 742 states have call successors, (742) [2022-07-23 00:28:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-23 00:28:17,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:28:17,331 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:28:17,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:28:17,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:28:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash 676289931, now seen corresponding path program 1 times [2022-07-23 00:28:17,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:28:17,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582681713] [2022-07-23 00:28:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:28:17,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:28:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:28:17,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:28:17,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 00:28:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:28:23,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 00:28:23,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:28:23,204 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-07-23 00:28:23,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:28:23,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:28:23,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582681713] [2022-07-23 00:28:23,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582681713] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:28:23,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:28:23,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:28:23,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021344661] [2022-07-23 00:28:23,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:28:23,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 00:28:23,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:28:23,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 00:28:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 00:28:23,237 INFO L87 Difference]: Start difference. First operand has 3729 states, 2844 states have (on average 1.499648382559775) internal successors, (4265), 2934 states have internal predecessors, (4265), 750 states have call successors, (750), 134 states have call predecessors, (750), 133 states have return successors, (742), 724 states have call predecessors, (742), 742 states have call successors, (742) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 00:28:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:28:23,415 INFO L93 Difference]: Finished difference Result 7453 states and 11552 transitions. [2022-07-23 00:28:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 00:28:23,424 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2022-07-23 00:28:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:28:23,451 INFO L225 Difference]: With dead ends: 7453 [2022-07-23 00:28:23,452 INFO L226 Difference]: Without dead ends: 3714 [2022-07-23 00:28:23,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 00:28:23,470 INFO L413 NwaCegarLoop]: 5749 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:28:23,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5749 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:28:23,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2022-07-23 00:28:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3714. [2022-07-23 00:28:23,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 2839 states have (on average 1.4963015146178231) internal successors, (4248), 2919 states have internal predecessors, (4248), 742 states have call successors, (742), 133 states have call predecessors, (742), 132 states have return successors, (738), 720 states have call predecessors, (738), 738 states have call successors, (738) [2022-07-23 00:28:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5728 transitions. [2022-07-23 00:28:23,670 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5728 transitions. Word has length 193 [2022-07-23 00:28:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:28:23,670 INFO L495 AbstractCegarLoop]: Abstraction has 3714 states and 5728 transitions. [2022-07-23 00:28:23,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 00:28:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5728 transitions. [2022-07-23 00:28:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-23 00:28:23,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:28:23,746 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:28:23,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:28:23,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:28:23,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:28:23,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:28:23,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2117889793, now seen corresponding path program 1 times [2022-07-23 00:28:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:28:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837088774] [2022-07-23 00:28:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:28:23,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:28:23,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:28:23,954 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:28:23,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 00:28:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:28:30,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 00:28:30,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:28:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-23 00:28:30,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:28:30,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:28:30,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837088774] [2022-07-23 00:28:30,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837088774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:28:30,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:28:30,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:28:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132073872] [2022-07-23 00:28:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:28:30,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:28:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:28:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:28:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:28:30,701 INFO L87 Difference]: Start difference. First operand 3714 states and 5728 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 00:28:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:28:33,275 INFO L93 Difference]: Finished difference Result 7418 states and 11477 transitions. [2022-07-23 00:28:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:28:33,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 193 [2022-07-23 00:28:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:28:33,310 INFO L225 Difference]: With dead ends: 7418 [2022-07-23 00:28:33,310 INFO L226 Difference]: Without dead ends: 3717 [2022-07-23 00:28:33,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:28:33,325 INFO L413 NwaCegarLoop]: 5692 mSDtfsCounter, 6 mSDsluCounter, 22697 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28389 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:28:33,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28389 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-23 00:28:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-23 00:28:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-07-23 00:28:33,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 2841 states have (on average 1.4963041182682155) internal successors, (4251), 2922 states have internal predecessors, (4251), 742 states have call successors, (742), 133 states have call predecessors, (742), 133 states have return successors, (744), 720 states have call predecessors, (744), 738 states have call successors, (744) [2022-07-23 00:28:33,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5737 transitions. [2022-07-23 00:28:33,418 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5737 transitions. Word has length 193 [2022-07-23 00:28:33,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:28:33,419 INFO L495 AbstractCegarLoop]: Abstraction has 3717 states and 5737 transitions. [2022-07-23 00:28:33,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 00:28:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5737 transitions. [2022-07-23 00:28:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-23 00:28:33,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:28:33,422 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:28:33,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 00:28:33,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:28:33,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:28:33,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:28:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2032450187, now seen corresponding path program 1 times [2022-07-23 00:28:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:28:33,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972962560] [2022-07-23 00:28:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:28:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:28:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:28:33,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:28:33,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 00:28:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:28:40,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 3127 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 00:28:40,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:28:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-23 00:28:40,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:28:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-23 00:28:42,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:28:42,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972962560] [2022-07-23 00:28:42,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972962560] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:28:42,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:28:42,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-23 00:28:42,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771408355] [2022-07-23 00:28:42,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:28:42,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:28:42,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:28:42,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:28:42,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:28:42,393 INFO L87 Difference]: Start difference. First operand 3717 states and 5737 transitions. Second operand has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 00:28:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:28:46,506 INFO L93 Difference]: Finished difference Result 7429 states and 11501 transitions. [2022-07-23 00:28:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 00:28:46,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 200 [2022-07-23 00:28:46,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:28:46,523 INFO L225 Difference]: With dead ends: 7429 [2022-07-23 00:28:46,524 INFO L226 Difference]: Without dead ends: 3725 [2022-07-23 00:28:46,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:28:46,537 INFO L413 NwaCegarLoop]: 5694 mSDtfsCounter, 14 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39742 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:28:46,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39742 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-23 00:28:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3725 states. [2022-07-23 00:28:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3725 to 3723. [2022-07-23 00:28:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 2845 states have (on average 1.495957820738137) internal successors, (4256), 2926 states have internal predecessors, (4256), 743 states have call successors, (743), 134 states have call predecessors, (743), 134 states have return successors, (745), 721 states have call predecessors, (745), 739 states have call successors, (745) [2022-07-23 00:28:46,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5744 transitions. [2022-07-23 00:28:46,614 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5744 transitions. Word has length 200 [2022-07-23 00:28:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:28:46,615 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5744 transitions. [2022-07-23 00:28:46,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 00:28:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5744 transitions. [2022-07-23 00:28:46,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-23 00:28:46,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:28:46,618 INFO L195 NwaCegarLoop]: trace histogram [14, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:28:46,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 00:28:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:28:46,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:28:46,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:28:46,831 INFO L85 PathProgramCache]: Analyzing trace with hash 642298943, now seen corresponding path program 2 times [2022-07-23 00:28:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:28:46,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457543314] [2022-07-23 00:28:46,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:28:46,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:28:46,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:28:46,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:28:46,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 00:28:52,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:28:52,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:28:52,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 00:28:52,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:28:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-07-23 00:28:55,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:28:55,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:28:55,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457543314] [2022-07-23 00:28:55,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457543314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:28:55,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:28:55,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:28:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975371936] [2022-07-23 00:28:55,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:28:55,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:28:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:28:55,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:28:55,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:28:55,376 INFO L87 Difference]: Start difference. First operand 3723 states and 5744 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:28:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:28:55,502 INFO L93 Difference]: Finished difference Result 5285 states and 8058 transitions. [2022-07-23 00:28:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:28:55,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 207 [2022-07-23 00:28:55,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:28:55,529 INFO L225 Difference]: With dead ends: 5285 [2022-07-23 00:28:55,529 INFO L226 Difference]: Without dead ends: 5280 [2022-07-23 00:28:55,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:28:55,533 INFO L413 NwaCegarLoop]: 6516 mSDtfsCounter, 2318 mSDsluCounter, 5623 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 12139 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:28:55,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 12139 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:28:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2022-07-23 00:28:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5277. [2022-07-23 00:28:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 4004 states have (on average 1.4832667332667333) internal successors, (5939), 4135 states have internal predecessors, (5939), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-23 00:28:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 8050 transitions. [2022-07-23 00:28:55,751 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 8050 transitions. Word has length 207 [2022-07-23 00:28:55,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:28:55,752 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 8050 transitions. [2022-07-23 00:28:55,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:28:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 8050 transitions. [2022-07-23 00:28:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-23 00:28:55,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:28:55,756 INFO L195 NwaCegarLoop]: trace histogram [14, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:28:55,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:28:55,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:28:55,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:28:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:28:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1607065466, now seen corresponding path program 1 times [2022-07-23 00:28:55,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:28:55,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741621872] [2022-07-23 00:28:55,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:28:55,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:28:55,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:28:55,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:28:55,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 00:29:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:02,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:29:02,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-23 00:29:03,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:29:04,994 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 00:29:04,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:04,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741621872] [2022-07-23 00:29:04,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741621872] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:29:04,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:29:04,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-23 00:29:04,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22652065] [2022-07-23 00:29:04,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:29:04,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 00:29:04,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:04,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 00:29:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:29:04,996 INFO L87 Difference]: Start difference. First operand 5277 states and 8050 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 00:29:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:10,020 INFO L93 Difference]: Finished difference Result 10560 states and 16163 transitions. [2022-07-23 00:29:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 00:29:10,022 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 216 [2022-07-23 00:29:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:10,050 INFO L225 Difference]: With dead ends: 10560 [2022-07-23 00:29:10,051 INFO L226 Difference]: Without dead ends: 5287 [2022-07-23 00:29:10,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-23 00:29:10,069 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 24 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 39743 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:10,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 39743 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-23 00:29:10,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2022-07-23 00:29:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 5279. [2022-07-23 00:29:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 4006 states have (on average 1.4835247129306042) internal successors, (5943), 4137 states have internal predecessors, (5943), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-23 00:29:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8054 transitions. [2022-07-23 00:29:10,201 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8054 transitions. Word has length 216 [2022-07-23 00:29:10,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:10,202 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8054 transitions. [2022-07-23 00:29:10,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 00:29:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8054 transitions. [2022-07-23 00:29:10,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-23 00:29:10,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:10,204 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:10,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:10,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:10,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:10,420 INFO L85 PathProgramCache]: Analyzing trace with hash 837176656, now seen corresponding path program 2 times [2022-07-23 00:29:10,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:10,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048343430] [2022-07-23 00:29:10,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:29:10,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:10,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:10,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:10,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 00:29:15,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:29:15,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:29:15,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:29:15,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-07-23 00:29:18,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:29:18,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:18,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048343430] [2022-07-23 00:29:18,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048343430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:29:18,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:29:18,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:29:18,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119085655] [2022-07-23 00:29:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:29:18,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:29:18,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:29:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:29:18,936 INFO L87 Difference]: Start difference. First operand 5279 states and 8054 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 00:29:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:19,026 INFO L93 Difference]: Finished difference Result 10529 states and 16066 transitions. [2022-07-23 00:29:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:29:19,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 223 [2022-07-23 00:29:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:19,049 INFO L225 Difference]: With dead ends: 10529 [2022-07-23 00:29:19,049 INFO L226 Difference]: Without dead ends: 5279 [2022-07-23 00:29:19,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:29:19,065 INFO L413 NwaCegarLoop]: 5726 mSDtfsCounter, 5654 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5654 SdHoareTripleChecker+Valid, 5726 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:19,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5654 Valid, 5726 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:29:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5279 states. [2022-07-23 00:29:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5279 to 5279. [2022-07-23 00:29:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 4006 states have (on average 1.4830254618072891) internal successors, (5941), 4137 states have internal predecessors, (5941), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-23 00:29:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8052 transitions. [2022-07-23 00:29:19,190 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8052 transitions. Word has length 223 [2022-07-23 00:29:19,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:19,191 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8052 transitions. [2022-07-23 00:29:19,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 00:29:19,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8052 transitions. [2022-07-23 00:29:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-23 00:29:19,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:19,194 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:19,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:19,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:19,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:19,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash -751171246, now seen corresponding path program 1 times [2022-07-23 00:29:19,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:19,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564029287] [2022-07-23 00:29:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:29:19,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:19,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:19,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:19,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 00:29:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:26,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 00:29:26,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-07-23 00:29:26,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:29:29,328 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-07-23 00:29:29,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:29,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564029287] [2022-07-23 00:29:29,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564029287] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:29:29,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:29:29,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-23 00:29:29,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916309785] [2022-07-23 00:29:29,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:29:29,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 00:29:29,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:29,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 00:29:29,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:29:29,331 INFO L87 Difference]: Start difference. First operand 5279 states and 8052 transitions. Second operand has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 00:29:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:37,173 INFO L93 Difference]: Finished difference Result 10568 states and 16176 transitions. [2022-07-23 00:29:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 00:29:37,174 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 223 [2022-07-23 00:29:37,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:37,194 INFO L225 Difference]: With dead ends: 10568 [2022-07-23 00:29:37,195 INFO L226 Difference]: Without dead ends: 5293 [2022-07-23 00:29:37,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-23 00:29:37,209 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 21 mSDsluCounter, 56796 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 62491 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:37,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62491 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-07-23 00:29:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5293 states. [2022-07-23 00:29:37,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5293 to 5281. [2022-07-23 00:29:37,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 4008 states have (on average 1.4832834331337326) internal successors, (5945), 4139 states have internal predecessors, (5945), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-07-23 00:29:37,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 8056 transitions. [2022-07-23 00:29:37,312 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 8056 transitions. Word has length 223 [2022-07-23 00:29:37,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:37,312 INFO L495 AbstractCegarLoop]: Abstraction has 5281 states and 8056 transitions. [2022-07-23 00:29:37,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 00:29:37,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 8056 transitions. [2022-07-23 00:29:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-23 00:29:37,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:37,316 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:37,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:37,535 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:37,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash -655912632, now seen corresponding path program 2 times [2022-07-23 00:29:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:37,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529915544] [2022-07-23 00:29:37,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:29:37,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:37,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:37,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:37,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 00:29:42,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:29:42,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:29:42,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:29:42,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2022-07-23 00:29:45,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:29:45,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:45,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529915544] [2022-07-23 00:29:45,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529915544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:29:45,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:29:45,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:29:45,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107883965] [2022-07-23 00:29:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:29:45,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:29:45,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:29:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:29:45,956 INFO L87 Difference]: Start difference. First operand 5281 states and 8056 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:29:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:29:46,050 INFO L93 Difference]: Finished difference Result 5283 states and 8057 transitions. [2022-07-23 00:29:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:29:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 230 [2022-07-23 00:29:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:29:46,064 INFO L225 Difference]: With dead ends: 5283 [2022-07-23 00:29:46,065 INFO L226 Difference]: Without dead ends: 5237 [2022-07-23 00:29:46,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:29:46,066 INFO L413 NwaCegarLoop]: 5724 mSDtfsCounter, 5638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5638 SdHoareTripleChecker+Valid, 5724 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:29:46,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5638 Valid, 5724 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:29:46,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2022-07-23 00:29:46,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 5237. [2022-07-23 00:29:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 3977 states have (on average 1.4845360824742269) internal successors, (5904), 4107 states have internal predecessors, (5904), 1043 states have call successors, (1043), 217 states have call predecessors, (1043), 216 states have return successors, (1049), 996 states have call predecessors, (1049), 1040 states have call successors, (1049) [2022-07-23 00:29:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 7996 transitions. [2022-07-23 00:29:46,168 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 7996 transitions. Word has length 230 [2022-07-23 00:29:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:29:46,169 INFO L495 AbstractCegarLoop]: Abstraction has 5237 states and 7996 transitions. [2022-07-23 00:29:46,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 00:29:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 7996 transitions. [2022-07-23 00:29:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-23 00:29:46,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:29:46,171 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:29:46,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 00:29:46,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:29:46,387 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:29:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:29:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1861933267, now seen corresponding path program 1 times [2022-07-23 00:29:46,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:29:46,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910754730] [2022-07-23 00:29:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:29:46,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:29:46,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:29:46,391 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:29:46,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 00:29:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:29:52,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 3329 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 00:29:52,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:29:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 198 proven. 10 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-07-23 00:29:53,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:29:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-07-23 00:29:56,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:29:56,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910754730] [2022-07-23 00:29:56,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910754730] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:29:56,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:29:56,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-23 00:29:56,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500235958] [2022-07-23 00:29:56,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:29:56,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 00:29:56,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:29:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 00:29:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:29:56,488 INFO L87 Difference]: Start difference. First operand 5237 states and 7996 transitions. Second operand has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-23 00:30:05,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:05,872 INFO L93 Difference]: Finished difference Result 10494 states and 16091 transitions. [2022-07-23 00:30:05,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 00:30:05,873 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 239 [2022-07-23 00:30:05,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:05,892 INFO L225 Difference]: With dead ends: 10494 [2022-07-23 00:30:05,892 INFO L226 Difference]: Without dead ends: 5267 [2022-07-23 00:30:05,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-23 00:30:05,906 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 40 mSDsluCounter, 51072 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 56767 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:30:05,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 56767 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-07-23 00:30:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2022-07-23 00:30:06,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5255. [2022-07-23 00:30:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 3993 states have (on average 1.485098923115452) internal successors, (5930), 4123 states have internal predecessors, (5930), 1043 states have call successors, (1043), 219 states have call predecessors, (1043), 218 states have return successors, (1056), 996 states have call predecessors, (1056), 1040 states have call successors, (1056) [2022-07-23 00:30:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8029 transitions. [2022-07-23 00:30:06,032 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8029 transitions. Word has length 239 [2022-07-23 00:30:06,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:06,033 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 8029 transitions. [2022-07-23 00:30:06,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-23 00:30:06,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8029 transitions. [2022-07-23 00:30:06,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-23 00:30:06,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:06,036 INFO L195 NwaCegarLoop]: trace histogram [33, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:30:06,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-23 00:30:06,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:06,252 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:06,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash 966308871, now seen corresponding path program 1 times [2022-07-23 00:30:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:06,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927519752] [2022-07-23 00:30:06,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:30:06,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:06,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:06,256 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:06,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 00:30:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:30:13,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 3385 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 00:30:13,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:30:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 252 proven. 15 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2022-07-23 00:30:14,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:30:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-07-23 00:30:17,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:30:17,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927519752] [2022-07-23 00:30:17,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927519752] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:30:17,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:30:17,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-23 00:30:17,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044297801] [2022-07-23 00:30:17,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:30:17,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 00:30:17,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:30:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 00:30:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-23 00:30:17,991 INFO L87 Difference]: Start difference. First operand 5255 states and 8029 transitions. Second operand has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-23 00:30:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:27,288 INFO L93 Difference]: Finished difference Result 10518 states and 16099 transitions. [2022-07-23 00:30:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 00:30:27,291 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 245 [2022-07-23 00:30:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:27,307 INFO L225 Difference]: With dead ends: 10518 [2022-07-23 00:30:27,307 INFO L226 Difference]: Without dead ends: 5273 [2022-07-23 00:30:27,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-23 00:30:27,317 INFO L413 NwaCegarLoop]: 5696 mSDtfsCounter, 60 mSDsluCounter, 45457 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 51153 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:30:27,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 51153 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-07-23 00:30:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5273 states. [2022-07-23 00:30:27,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5273 to 5257. [2022-07-23 00:30:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3995 states have (on average 1.4853566958698372) internal successors, (5934), 4125 states have internal predecessors, (5934), 1043 states have call successors, (1043), 219 states have call predecessors, (1043), 218 states have return successors, (1056), 996 states have call predecessors, (1056), 1040 states have call successors, (1056) [2022-07-23 00:30:27,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8033 transitions. [2022-07-23 00:30:27,431 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8033 transitions. Word has length 245 [2022-07-23 00:30:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:27,431 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8033 transitions. [2022-07-23 00:30:27,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-07-23 00:30:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8033 transitions. [2022-07-23 00:30:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-23 00:30:27,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:27,434 INFO L195 NwaCegarLoop]: trace histogram [38, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:30:27,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 00:30:27,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:27,651 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:27,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash -443402579, now seen corresponding path program 2 times [2022-07-23 00:30:27,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:27,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345223843] [2022-07-23 00:30:27,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:30:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:27,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:27,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 00:30:32,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:30:32,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:30:33,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:30:33,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:30:33,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2022-07-23 00:30:33,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:30:33,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:30:33,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345223843] [2022-07-23 00:30:33,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345223843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:30:33,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:30:33,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:30:33,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350170395] [2022-07-23 00:30:33,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:30:33,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:30:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:30:33,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:30:33,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:30:33,244 INFO L87 Difference]: Start difference. First operand 5257 states and 8033 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:30:33,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:33,890 INFO L93 Difference]: Finished difference Result 12432 states and 18919 transitions. [2022-07-23 00:30:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:30:33,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 250 [2022-07-23 00:30:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:33,915 INFO L225 Difference]: With dead ends: 12432 [2022-07-23 00:30:33,915 INFO L226 Difference]: Without dead ends: 7200 [2022-07-23 00:30:33,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:30:33,930 INFO L413 NwaCegarLoop]: 5959 mSDtfsCounter, 1485 mSDsluCounter, 5647 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 11606 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 [2022-07-23 00:30:33,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 11606 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 00:30:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2022-07-23 00:30:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7193. [2022-07-23 00:30:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7193 states, 5501 states have (on average 1.4824577349572805) internal successors, (8155), 5677 states have internal predecessors, (8155), 1366 states have call successors, (1366), 326 states have call predecessors, (1366), 325 states have return successors, (1379), 1307 states have call predecessors, (1379), 1363 states have call successors, (1379) [2022-07-23 00:30:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7193 states to 7193 states and 10900 transitions. [2022-07-23 00:30:34,122 INFO L78 Accepts]: Start accepts. Automaton has 7193 states and 10900 transitions. Word has length 250 [2022-07-23 00:30:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:34,122 INFO L495 AbstractCegarLoop]: Abstraction has 7193 states and 10900 transitions. [2022-07-23 00:30:34,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:30:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 7193 states and 10900 transitions. [2022-07-23 00:30:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-23 00:30:34,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:34,127 INFO L195 NwaCegarLoop]: trace histogram [38, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-23 00:30:34,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 00:30:34,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:34,347 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:34,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:34,348 INFO L85 PathProgramCache]: Analyzing trace with hash -292812326, now seen corresponding path program 1 times [2022-07-23 00:30:34,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:34,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190604297] [2022-07-23 00:30:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:30:34,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:34,352 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:34,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 00:30:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:30:41,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 3579 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 00:30:41,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:30:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 482 proven. 21 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2022-07-23 00:30:42,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:30:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2022-07-23 00:30:46,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:30:46,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190604297] [2022-07-23 00:30:46,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190604297] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:30:46,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:30:46,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-23 00:30:46,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370376304] [2022-07-23 00:30:46,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:30:46,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-23 00:30:46,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:30:46,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-23 00:30:46,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-23 00:30:46,900 INFO L87 Difference]: Start difference. First operand 7193 states and 10900 transitions. Second operand has 21 states, 19 states have (on average 6.842105263157895) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-07-23 00:30:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:30:59,005 INFO L93 Difference]: Finished difference Result 14410 states and 21870 transitions. [2022-07-23 00:30:59,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 00:30:59,006 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.842105263157895) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 305 [2022-07-23 00:30:59,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:30:59,030 INFO L225 Difference]: With dead ends: 14410 [2022-07-23 00:30:59,030 INFO L226 Difference]: Without dead ends: 7217 [2022-07-23 00:30:59,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2022-07-23 00:30:59,047 INFO L413 NwaCegarLoop]: 5697 mSDtfsCounter, 80 mSDsluCounter, 62500 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 68197 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:30:59,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 68197 Invalid, 1286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-07-23 00:30:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7217 states. [2022-07-23 00:30:59,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7217 to 7197. [2022-07-23 00:30:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7197 states, 5505 states have (on average 1.4824704813805631) internal successors, (8161), 5681 states have internal predecessors, (8161), 1366 states have call successors, (1366), 326 states have call predecessors, (1366), 325 states have return successors, (1379), 1307 states have call predecessors, (1379), 1363 states have call successors, (1379) [2022-07-23 00:30:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 10906 transitions. [2022-07-23 00:30:59,207 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 10906 transitions. Word has length 305 [2022-07-23 00:30:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:30:59,209 INFO L495 AbstractCegarLoop]: Abstraction has 7197 states and 10906 transitions. [2022-07-23 00:30:59,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.842105263157895) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-07-23 00:30:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 10906 transitions. [2022-07-23 00:30:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-23 00:30:59,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:30:59,213 INFO L195 NwaCegarLoop]: trace histogram [43, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:30:59,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 00:30:59,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 00:30:59,427 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:30:59,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:30:59,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1211485600, now seen corresponding path program 1 times [2022-07-23 00:30:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:30:59,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560399637] [2022-07-23 00:30:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:30:59,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:30:59,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:30:59,432 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 00:30:59,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process