./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/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-?-6c24879 [2022-07-12 13:09:38,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:09:38,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:09:38,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:09:38,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:09:38,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:09:38,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:09:38,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:09:38,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:09:38,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:09:38,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:09:38,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:09:38,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:09:38,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:09:38,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:09:38,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:09:38,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:09:38,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:09:38,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:09:38,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:09:38,257 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:09:38,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:09:38,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:09:38,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:09:38,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:09:38,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:09:38,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:09:38,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:09:38,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:09:38,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:09:38,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:09:38,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:09:38,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:09:38,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:09:38,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:09:38,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:09:38,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:09:38,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:09:38,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:09:38,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:09:38,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:09:38,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:09:38,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:09:38,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:09:38,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:09:38,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:09:38,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:09:38,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:09:38,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:09:38,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:09:38,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:09:38,305 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:09:38,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:09:38,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:09:38,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:09:38,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:09:38,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:09:38,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:09:38,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:09:38,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:09:38,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:09:38,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-12 13:09:38,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:09:38,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:09:38,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:09:38,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:09:38,470 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:09:38,471 INFO L432 ainManager$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 [2022-07-12 13:09:38,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac1a868b/3bc78e89bd0843afb4315e81b5f59127/FLAG2da8c3c63 [2022-07-12 13:09:39,193 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:09:39,194 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 [2022-07-12 13:09:39,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac1a868b/3bc78e89bd0843afb4315e81b5f59127/FLAG2da8c3c63 [2022-07-12 13:09:39,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac1a868b/3bc78e89bd0843afb4315e81b5f59127 [2022-07-12 13:09:39,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:09:39,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:09:39,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:09:39,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:09:39,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:09:39,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:09:39" (1/1) ... [2022-07-12 13:09:39,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e717fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:39, skipping insertion in model container [2022-07-12 13:09:39,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:09:39" (1/1) ... [2022-07-12 13:09:39,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:09:39,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:09:41,518 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] [2022-07-12 13:09:41,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:09:41,676 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:09:41,934 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 13:09:41,941 INFO L158 Benchmark]: Toolchain (without parser) took 2394.43ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 60.2MB in the beginning and 107.5MB in the end (delta: -47.3MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2022-07-12 13:09:41,942 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:09:41,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2383.89ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 59.9MB in the beginning and 107.5MB in the end (delta: -47.6MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2022-07-12 13:09:41,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2383.89ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 59.9MB in the beginning and 107.5MB in the end (delta: -47.6MB). Peak memory consumption was 82.0MB. 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-?-6c24879 [2022-07-12 13:09:43,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:09:43,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:09:43,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:09:43,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:09:43,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:09:43,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:09:43,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:09:43,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:09:43,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:09:43,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:09:43,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:09:43,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:09:43,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:09:43,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:09:43,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:09:43,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:09:43,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:09:43,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:09:43,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:09:43,357 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:09:43,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:09:43,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:09:43,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:09:43,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:09:43,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:09:43,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:09:43,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:09:43,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:09:43,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:09:43,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:09:43,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:09:43,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:09:43,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:09:43,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:09:43,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:09:43,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:09:43,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:09:43,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:09:43,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:09:43,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:09:43,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:09:43,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:09:43,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:09:43,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:09:43,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:09:43,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:09:43,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:09:43,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:09:43,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:09:43,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:09:43,385 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:09:43,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:09:43,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:09:43,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:09:43,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:09:43,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:09:43,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:09:43,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:09:43,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:09:43,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:09:43,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:09:43,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:09:43,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:09:43,388 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:09:43,388 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:09:43,388 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:09:43,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:09:43,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:09:43,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:09:43,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-12 13:09:43,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:09:43,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:09:43,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:09:43,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:09:43,640 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:09:43,644 INFO L432 ainManager$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 [2022-07-12 13:09:43,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e746487a/b365203e158a460994d463bf03098050/FLAGec0ce3358 [2022-07-12 13:09:44,329 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:09:44,329 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 [2022-07-12 13:09:44,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e746487a/b365203e158a460994d463bf03098050/FLAGec0ce3358 [2022-07-12 13:09:44,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e746487a/b365203e158a460994d463bf03098050 [2022-07-12 13:09:44,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:09:44,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:09:44,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:09:44,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:09:44,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:09:44,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:09:44" (1/1) ... [2022-07-12 13:09:44,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c17bea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:44, skipping insertion in model container [2022-07-12 13:09:44,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:09:44" (1/1) ... [2022-07-12 13:09:44,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:09:44,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:09:46,557 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] [2022-07-12 13:09:46,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:09:46,707 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:09:46,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:09:47,068 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] [2022-07-12 13:09:47,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:09:47,111 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:09:47,387 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] [2022-07-12 13:09:47,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:09:47,502 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:09:47,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47 WrapperNode [2022-07-12 13:09:47,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:09:47,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:09:47,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:09:47,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:09:47,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:47,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:47,805 INFO L137 Inliner]: procedures = 445, calls = 5265, calls flagged for inlining = 154, calls inlined = 136, statements flattened = 9918 [2022-07-12 13:09:47,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:09:47,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:09:47,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:09:47,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:09:47,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:47,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:47,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:47,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:47,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:48,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:48,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:48,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:09:48,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:09:48,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:09:48,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:09:48,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (1/1) ... [2022-07-12 13:09:48,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:09:48,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:09:48,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:09:48,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:09:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-12 13:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-12 13:09:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-12 13:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-12 13:09:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:09:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 13:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 13:09:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:09:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-12 13:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-12 13:09:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-12 13:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-12 13:09:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-12 13:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-12 13:09:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-12 13:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-12 13:09:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-12 13:09:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-12 13:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-12 13:09:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:09:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-12 13:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-12 13:09:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-12 13:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-12 13:09:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 13:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 13:09:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-12 13:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-12 13:09:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 13:09:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 13:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 13:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-12 13:09:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-12 13:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 13:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-12 13:09:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-12 13:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-12 13:09:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-12 13:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-12 13:09:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-12 13:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-12 13:09:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-12 13:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-12 13:09:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-12 13:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 13:09:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 13:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-12 13:09:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-12 13:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-12 13:09:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-12 13:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-12 13:09:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-12 13:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-12 13:09:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-12 13:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-12 13:09:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-12 13:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 13:09:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 13:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-12 13:09:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-12 13:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:09:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-12 13:09:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-12 13:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-12 13:09:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-12 13:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-12 13:09:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-12 13:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-12 13:09:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-12 13:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-12 13:09:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-12 13:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-12 13:09:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-12 13:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-12 13:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-12 13:09:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-12 13:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 13:09:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 13:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-12 13:09:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-12 13:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:09:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:09:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-12 13:09:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-12 13:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-12 13:09:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-12 13:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-12 13:09:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-12 13:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-12 13:09:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-12 13:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-12 13:09:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-12 13:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-12 13:09:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-12 13:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 13:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 13:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-12 13:09:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-12 13:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-12 13:09:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-12 13:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-12 13:09:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-12 13:09:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-12 13:09:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-12 13:09:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-12 13:09:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-12 13:09:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-12 13:09:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-12 13:09:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-12 13:09:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-12 13:09:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-12 13:09:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-12 13:09:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-12 13:09:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-12 13:09:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-12 13:09:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-12 13:09:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-12 13:09:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-12 13:09:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-12 13:09:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-12 13:09:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-12 13:09:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-12 13:09:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 13:09:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 13:09:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 13:09:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 13:09:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:09:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:09:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:09:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-12 13:09:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-12 13:09:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-12 13:09:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 13:09:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:09:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:09:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 13:09:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 13:09:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 13:09:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-12 13:09:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-12 13:09:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-12 13:09:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-12 13:09:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-12 13:09:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-12 13:09:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:09:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:09:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-12 13:09:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-12 13:09:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:09:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:09:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-12 13:09:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-12 13:09:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-12 13:09:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-12 13:09:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:09:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:09:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:09:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:09:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-12 13:09:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-12 13:09:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:09:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:09:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-12 13:09:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-12 13:09:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:09:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:09:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-12 13:09:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-12 13:09:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-12 13:09:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-12 13:09:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:09:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-12 13:09:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-12 13:09:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-12 13:09:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-12 13:09:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:09:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 13:09:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 13:09:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-12 13:09:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-12 13:09:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-12 13:09:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-12 13:09:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 13:09:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 13:09:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:09:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-12 13:09:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-12 13:09:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-12 13:09:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:09:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-12 13:09:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-12 13:09:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 13:09:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 13:09:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-12 13:09:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-12 13:09:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-12 13:09:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-12 13:09:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 13:09:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 13:09:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 13:09:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 13:09:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-12 13:09:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-12 13:09:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-12 13:09:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-12 13:09:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-12 13:09:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-12 13:09:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-12 13:09:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-12 13:09:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-12 13:09:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-12 13:09:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-12 13:09:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-12 13:09:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-12 13:09:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-12 13:09:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-12 13:09:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-12 13:09:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-12 13:09:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-12 13:09:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-12 13:09:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-12 13:09:48,249 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:09:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-12 13:09:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-12 13:09:48,250 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-12 13:09:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-12 13:09:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-12 13:09:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-12 13:09:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-12 13:09:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:09:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:09:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-12 13:09:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-12 13:09:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 13:09:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 13:09:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-12 13:09:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-12 13:09:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-12 13:09:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-12 13:09:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-12 13:09:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-12 13:09:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 13:09:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 13:09:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-12 13:09:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-12 13:09:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-12 13:09:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-12 13:09:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-12 13:09:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-12 13:09:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-12 13:09:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-12 13:09:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-12 13:09:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-12 13:09:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 13:09:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 13:09:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 13:09:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 13:09:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-12 13:09:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-12 13:09:49,006 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:09:49,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:09:49,753 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0bv64 != ~tmp___1~2;#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0bv64 != ~tmp___1~2);#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16bv32 == ~size; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10bv32 == ~size; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2bv32 == ~size; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8bv32 == ~size; [2022-07-12 13:09:49,927 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843-1: ~tmp___2~1 := #t~ret123;havoc #t~ret123;#res := ~tmp___2~1[32:0]; [2022-07-12 13:09:49,928 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 [2022-07-12 13:09:49,928 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2022-07-12 13:09:49,928 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4bv32 == ~size; [2022-07-12 13:09:49,928 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: ~tmp___1~2 := #t~ret122;havoc #t~ret122; [2022-07-12 13:09:49,928 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 [2022-07-12 13:09:49,928 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: ~tmp___0~8 := #t~ret121;havoc #t~ret121; [2022-07-12 13:09:49,928 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 [2022-07-12 13:09:49,928 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2022-07-12 13:09:49,928 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2022-07-12 13:11:08,792 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,792 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 [2022-07-12 13:11:08,792 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; [2022-07-12 13:11:08,793 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; [2022-07-12 13:11:08,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2022-07-12 13:11:08,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2022-07-12 13:11:08,793 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 [2022-07-12 13:11:08,793 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; [2022-07-12 13:11:08,793 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; [2022-07-12 13:11:08,793 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; [2022-07-12 13:11:08,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2022-07-12 13:11:08,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2022-07-12 13:11:08,793 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 [2022-07-12 13:11:08,794 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]; [2022-07-12 13:11:08,794 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; [2022-07-12 13:11:08,794 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; [2022-07-12 13:11:08,966 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:11:08,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:11:08,982 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 13:11:08,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:11:08 BoogieIcfgContainer [2022-07-12 13:11:08,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:11:08,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:11:08,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:11:08,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:11:08,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:09:44" (1/3) ... [2022-07-12 13:11:08,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624ef82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:11:08, skipping insertion in model container [2022-07-12 13:11:08,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:09:47" (2/3) ... [2022-07-12 13:11:08,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624ef82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:11:08, skipping insertion in model container [2022-07-12 13:11:08,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:11:08" (3/3) ... [2022-07-12 13:11:08,991 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-12 13:11:09,000 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:11:09,000 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:11:09,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:11:09,089 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@6c1615a6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@272f983f [2022-07-12 13:11:09,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:11:09,102 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) [2022-07-12 13:11:09,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-12 13:11:09,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:09,124 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] [2022-07-12 13:11:09,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:09,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:09,129 INFO L85 PathProgramCache]: Analyzing trace with hash 676289931, now seen corresponding path program 1 times [2022-07-12 13:11:09,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:09,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743652125] [2022-07-12 13:11:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:11:09,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:09,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:09,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:11:09,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:11:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:11:15,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 13:11:15,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-07-12 13:11:15,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:11:15,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:15,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743652125] [2022-07-12 13:11:15,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743652125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:11:15,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:11:15,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:11:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848170582] [2022-07-12 13:11:15,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:11:15,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 13:11:15,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:15,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 13:11:15,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:11:15,216 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) [2022-07-12 13:11:15,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:15,410 INFO L93 Difference]: Finished difference Result 7453 states and 11552 transitions. [2022-07-12 13:11:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 13:11:15,413 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 [2022-07-12 13:11:15,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:15,449 INFO L225 Difference]: With dead ends: 7453 [2022-07-12 13:11:15,449 INFO L226 Difference]: Without dead ends: 3714 [2022-07-12 13:11:15,470 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 [2022-07-12 13:11:15,474 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 [2022-07-12 13:11:15,475 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] [2022-07-12 13:11:15,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2022-07-12 13:11:15,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3714. [2022-07-12 13:11:15,758 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) [2022-07-12 13:11:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5728 transitions. [2022-07-12 13:11:15,784 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5728 transitions. Word has length 193 [2022-07-12 13:11:15,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:11:15,784 INFO L495 AbstractCegarLoop]: Abstraction has 3714 states and 5728 transitions. [2022-07-12 13:11:15,784 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) [2022-07-12 13:11:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5728 transitions. [2022-07-12 13:11:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-12 13:11:15,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:15,791 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] [2022-07-12 13:11:15,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:11:16,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:11:16,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:16,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2117889793, now seen corresponding path program 1 times [2022-07-12 13:11:16,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:16,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185740581] [2022-07-12 13:11:16,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:11:16,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:16,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:16,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:11:16,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:11:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:11:22,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:11:22,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-12 13:11:23,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:11:23,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:23,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185740581] [2022-07-12 13:11:23,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185740581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:11:23,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:11:23,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:11:23,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296808892] [2022-07-12 13:11:23,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:11:23,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:11:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:23,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:11:23,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:11:23,133 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) [2022-07-12 13:11:25,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:25,572 INFO L93 Difference]: Finished difference Result 7418 states and 11477 transitions. [2022-07-12 13:11:25,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:11:25,572 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 [2022-07-12 13:11:25,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:25,593 INFO L225 Difference]: With dead ends: 7418 [2022-07-12 13:11:25,593 INFO L226 Difference]: Without dead ends: 3717 [2022-07-12 13:11:25,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:11:25,609 INFO L413 NwaCegarLoop]: 5692 mSDtfsCounter, 6 mSDsluCounter, 22697 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:11:25,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28389 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 13:11:25,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-12 13:11:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-07-12 13:11:25,692 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) [2022-07-12 13:11:25,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5737 transitions. [2022-07-12 13:11:25,709 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5737 transitions. Word has length 193 [2022-07-12 13:11:25,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:11:25,710 INFO L495 AbstractCegarLoop]: Abstraction has 3717 states and 5737 transitions. [2022-07-12 13:11:25,710 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) [2022-07-12 13:11:25,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5737 transitions. [2022-07-12 13:11:25,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-12 13:11:25,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:25,712 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] [2022-07-12 13:11:25,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:11:25,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:11:25,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:25,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2032450187, now seen corresponding path program 1 times [2022-07-12 13:11:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:25,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475187754] [2022-07-12 13:11:25,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:11:25,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:25,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:25,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:11:25,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:11:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:11:32,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 3127 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:11:32,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-12 13:11:33,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:11:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-12 13:11:34,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:34,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475187754] [2022-07-12 13:11:34,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475187754] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:11:34,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:11:34,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 13:11:34,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060353203] [2022-07-12 13:11:34,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:11:34,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 13:11:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:34,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 13:11:34,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:11:34,729 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) [2022-07-12 13:11:38,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:38,721 INFO L93 Difference]: Finished difference Result 7429 states and 11501 transitions. [2022-07-12 13:11:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:11:38,722 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 [2022-07-12 13:11:38,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:38,741 INFO L225 Difference]: With dead ends: 7429 [2022-07-12 13:11:38,741 INFO L226 Difference]: Without dead ends: 3725 [2022-07-12 13:11:38,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:11:38,758 INFO L413 NwaCegarLoop]: 5694 mSDtfsCounter, 14 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:11:38,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39742 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 13:11:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3725 states. [2022-07-12 13:11:38,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3725 to 3723. [2022-07-12 13:11:38,846 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) [2022-07-12 13:11:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5744 transitions. [2022-07-12 13:11:38,860 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5744 transitions. Word has length 200 [2022-07-12 13:11:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:11:38,861 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5744 transitions. [2022-07-12 13:11:38,862 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) [2022-07-12 13:11:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5744 transitions. [2022-07-12 13:11:38,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-12 13:11:38,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:38,867 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] [2022-07-12 13:11:38,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:11:39,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:11:39,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash 642298943, now seen corresponding path program 2 times [2022-07-12 13:11:39,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:39,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144634023] [2022-07-12 13:11:39,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:11:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:39,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:39,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:11:39,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:11:44,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:11:44,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:11:44,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:11:44,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:47,445 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-07-12 13:11:47,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:11:47,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:47,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144634023] [2022-07-12 13:11:47,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144634023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:11:47,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:11:47,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:11:47,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599722398] [2022-07-12 13:11:47,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:11:47,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:11:47,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:47,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:11:47,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:11:47,448 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) [2022-07-12 13:11:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:47,582 INFO L93 Difference]: Finished difference Result 5285 states and 8058 transitions. [2022-07-12 13:11:47,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:11:47,583 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 [2022-07-12 13:11:47,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:47,606 INFO L225 Difference]: With dead ends: 5285 [2022-07-12 13:11:47,607 INFO L226 Difference]: Without dead ends: 5280 [2022-07-12 13:11:47,610 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 [2022-07-12 13:11:47,611 INFO L413 NwaCegarLoop]: 6516 mSDtfsCounter, 2318 mSDsluCounter, 5623 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-12 13:11:47,611 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] [2022-07-12 13:11:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2022-07-12 13:11:47,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5277. [2022-07-12 13:11:47,748 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) [2022-07-12 13:11:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 8050 transitions. [2022-07-12 13:11:47,766 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 8050 transitions. Word has length 207 [2022-07-12 13:11:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:11:47,767 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 8050 transitions. [2022-07-12 13:11:47,768 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) [2022-07-12 13:11:47,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 8050 transitions. [2022-07-12 13:11:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-12 13:11:47,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:47,770 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] [2022-07-12 13:11:47,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:11:47,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:11:47,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:47,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1607065466, now seen corresponding path program 1 times [2022-07-12 13:11:47,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:47,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601461914] [2022-07-12 13:11:47,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:11:47,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:47,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:48,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:11:48,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:11:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:11:54,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 13:11:54,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-12 13:11:54,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:11:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 13:11:56,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:56,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601461914] [2022-07-12 13:11:56,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601461914] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:11:56,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:11:56,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 13:11:56,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324852760] [2022-07-12 13:11:56,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:11:56,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 13:11:56,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 13:11:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:11:56,433 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) [2022-07-12 13:12:01,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:12:01,198 INFO L93 Difference]: Finished difference Result 10560 states and 16163 transitions. [2022-07-12 13:12:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 13:12:01,208 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 [2022-07-12 13:12:01,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:12:01,231 INFO L225 Difference]: With dead ends: 10560 [2022-07-12 13:12:01,232 INFO L226 Difference]: Without dead ends: 5287 [2022-07-12 13:12:01,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-12 13:12:01,250 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 24 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:12:01,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 39743 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 13:12:01,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2022-07-12 13:12:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 5279. [2022-07-12 13:12:01,359 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) [2022-07-12 13:12:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8054 transitions. [2022-07-12 13:12:01,375 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8054 transitions. Word has length 216 [2022-07-12 13:12:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:12:01,375 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8054 transitions. [2022-07-12 13:12:01,375 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) [2022-07-12 13:12:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8054 transitions. [2022-07-12 13:12:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-12 13:12:01,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:12:01,378 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] [2022-07-12 13:12:01,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:12:01,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:12:01,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:12:01,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:12:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash 837176656, now seen corresponding path program 2 times [2022-07-12 13:12:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:12:01,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412559944] [2022-07-12 13:12:01,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:12:01,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:12:01,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:12:01,601 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:12:01,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:12:06,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:12:06,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:12:07,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:12:07,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:12:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-07-12 13:12:09,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:12:09,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:12:09,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412559944] [2022-07-12 13:12:09,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412559944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:12:09,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:12:09,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:12:09,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222283837] [2022-07-12 13:12:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:12:09,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:12:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:12:09,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:12:09,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:12:09,864 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) [2022-07-12 13:12:09,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:12:09,937 INFO L93 Difference]: Finished difference Result 10529 states and 16066 transitions. [2022-07-12 13:12:09,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:12:09,938 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 [2022-07-12 13:12:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:12:09,971 INFO L225 Difference]: With dead ends: 10529 [2022-07-12 13:12:09,971 INFO L226 Difference]: Without dead ends: 5279 [2022-07-12 13:12:09,985 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 [2022-07-12 13:12:09,987 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 [2022-07-12 13:12:09,987 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] [2022-07-12 13:12:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5279 states. [2022-07-12 13:12:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5279 to 5279. [2022-07-12 13:12:10,091 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) [2022-07-12 13:12:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8052 transitions. [2022-07-12 13:12:10,104 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8052 transitions. Word has length 223 [2022-07-12 13:12:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:12:10,105 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8052 transitions. [2022-07-12 13:12:10,105 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) [2022-07-12 13:12:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8052 transitions. [2022-07-12 13:12:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-12 13:12:10,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:12:10,107 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] [2022-07-12 13:12:10,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:12:10,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:12:10,323 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:12:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:12:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -751171246, now seen corresponding path program 1 times [2022-07-12 13:12:10,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:12:10,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413713640] [2022-07-12 13:12:10,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:12:10,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:12:10,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:12:10,327 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:12:10,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 13:12:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:12:16,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 13:12:16,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:12:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-07-12 13:12:17,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:12:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-07-12 13:12:19,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:12:19,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413713640] [2022-07-12 13:12:19,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413713640] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:12:19,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:12:19,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 13:12:19,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34047394] [2022-07-12 13:12:19,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:12:19,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 13:12:19,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:12:19,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 13:12:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:12:19,324 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) [2022-07-12 13:12:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:12:26,433 INFO L93 Difference]: Finished difference Result 10568 states and 16176 transitions. [2022-07-12 13:12:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 13:12:26,434 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 [2022-07-12 13:12:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:12:26,451 INFO L225 Difference]: With dead ends: 10568 [2022-07-12 13:12:26,451 INFO L226 Difference]: Without dead ends: 5293 [2022-07-12 13:12:26,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-12 13:12:26,466 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 21 mSDsluCounter, 56796 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s 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, 6.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:12:26,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62491 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-12 13:12:26,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5293 states. [2022-07-12 13:12:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5293 to 5281. [2022-07-12 13:12:26,558 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) [2022-07-12 13:12:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 8056 transitions. [2022-07-12 13:12:26,570 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 8056 transitions. Word has length 223 [2022-07-12 13:12:26,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:12:26,573 INFO L495 AbstractCegarLoop]: Abstraction has 5281 states and 8056 transitions. [2022-07-12 13:12:26,573 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) [2022-07-12 13:12:26,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 8056 transitions. [2022-07-12 13:12:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-12 13:12:26,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:12:26,576 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] [2022-07-12 13:12:26,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:12:26,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:12:26,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:12:26,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:12:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash -655912632, now seen corresponding path program 2 times [2022-07-12 13:12:26,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:12:26,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743051477] [2022-07-12 13:12:26,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:12:26,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:12:26,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:12:26,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:12:26,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 13:12:31,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:12:31,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:12:31,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:12:31,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:12:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2022-07-12 13:12:35,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:12:35,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:12:35,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743051477] [2022-07-12 13:12:35,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743051477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:12:35,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:12:35,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:12:35,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198973219] [2022-07-12 13:12:35,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:12:35,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:12:35,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:12:35,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:12:35,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:12:35,023 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) [2022-07-12 13:12:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:12:35,130 INFO L93 Difference]: Finished difference Result 5283 states and 8057 transitions. [2022-07-12 13:12:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:12:35,131 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 [2022-07-12 13:12:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:12:35,142 INFO L225 Difference]: With dead ends: 5283 [2022-07-12 13:12:35,142 INFO L226 Difference]: Without dead ends: 5237 [2022-07-12 13:12:35,143 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 [2022-07-12 13:12:35,143 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 [2022-07-12 13:12:35,144 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] [2022-07-12 13:12:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2022-07-12 13:12:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 5237. [2022-07-12 13:12:35,245 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) [2022-07-12 13:12:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 7996 transitions. [2022-07-12 13:12:35,258 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 7996 transitions. Word has length 230 [2022-07-12 13:12:35,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:12:35,258 INFO L495 AbstractCegarLoop]: Abstraction has 5237 states and 7996 transitions. [2022-07-12 13:12:35,259 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) [2022-07-12 13:12:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 7996 transitions. [2022-07-12 13:12:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-12 13:12:35,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:12:35,261 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] [2022-07-12 13:12:35,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 13:12:35,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:12:35,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:12:35,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:12:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1861933267, now seen corresponding path program 1 times [2022-07-12 13:12:35,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:12:35,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320794385] [2022-07-12 13:12:35,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:12:35,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:12:35,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:12:35,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:12:35,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 13:12:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:12:41,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 3329 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 13:12:41,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:12:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 198 proven. 10 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-07-12 13:12:42,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:12:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-07-12 13:12:45,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:12:45,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320794385] [2022-07-12 13:12:45,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320794385] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:12:45,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:12:45,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-12 13:12:45,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155204972] [2022-07-12 13:12:45,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:12:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 13:12:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:12:45,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 13:12:45,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:12:45,605 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) [2022-07-12 13:12:54,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:12:54,016 INFO L93 Difference]: Finished difference Result 10494 states and 16091 transitions. [2022-07-12 13:12:54,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 13:12:54,017 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 [2022-07-12 13:12:54,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:12:54,032 INFO L225 Difference]: With dead ends: 10494 [2022-07-12 13:12:54,032 INFO L226 Difference]: Without dead ends: 5267 [2022-07-12 13:12:54,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-12 13:12:54,043 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 40 mSDsluCounter, 51072 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s 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, 7.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:12:54,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 56767 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-12 13:12:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2022-07-12 13:12:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5255. [2022-07-12 13:12:54,137 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) [2022-07-12 13:12:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8029 transitions. [2022-07-12 13:12:54,150 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8029 transitions. Word has length 239 [2022-07-12 13:12:54,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:12:54,151 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 8029 transitions. [2022-07-12 13:12:54,151 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) [2022-07-12 13:12:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8029 transitions. [2022-07-12 13:12:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-12 13:12:54,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:12:54,154 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] [2022-07-12 13:12:54,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 13:12:54,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:12:54,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:12:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:12:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 966308871, now seen corresponding path program 1 times [2022-07-12 13:12:54,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:12:54,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087381344] [2022-07-12 13:12:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:12:54,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:12:54,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:12:54,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:12:54,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 13:13:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:01,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 3385 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 13:13:01,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 252 proven. 15 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2022-07-12 13:13:02,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:13:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-07-12 13:13:05,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:05,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087381344] [2022-07-12 13:13:05,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087381344] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:13:05,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:13:05,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-12 13:13:05,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027398623] [2022-07-12 13:13:05,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:13:05,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-12 13:13:05,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:05,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-12 13:13:05,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-12 13:13:05,441 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) [2022-07-12 13:13:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:13,870 INFO L93 Difference]: Finished difference Result 10518 states and 16099 transitions. [2022-07-12 13:13:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 13:13:13,871 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 [2022-07-12 13:13:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:13,886 INFO L225 Difference]: With dead ends: 10518 [2022-07-12 13:13:13,886 INFO L226 Difference]: Without dead ends: 5273 [2022-07-12 13:13:13,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-12 13:13:13,897 INFO L413 NwaCegarLoop]: 5696 mSDtfsCounter, 60 mSDsluCounter, 45457 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s 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, 7.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:13:13,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 51153 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-07-12 13:13:13,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5273 states. [2022-07-12 13:13:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5273 to 5257. [2022-07-12 13:13:13,987 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) [2022-07-12 13:13:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8033 transitions. [2022-07-12 13:13:14,001 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8033 transitions. Word has length 245 [2022-07-12 13:13:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:14,001 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8033 transitions. [2022-07-12 13:13:14,001 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) [2022-07-12 13:13:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8033 transitions. [2022-07-12 13:13:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-12 13:13:14,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:14,003 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] [2022-07-12 13:13:14,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:14,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:14,221 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash -443402579, now seen corresponding path program 2 times [2022-07-12 13:13:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:14,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217630567] [2022-07-12 13:13:14,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:13:14,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:14,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:14,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:14,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 13:13:19,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:13:19,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:13:19,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:13:19,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2022-07-12 13:13:19,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:13:19,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:19,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217630567] [2022-07-12 13:13:19,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217630567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:13:19,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:13:19,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:13:19,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858320486] [2022-07-12 13:13:19,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:13:19,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:13:19,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:19,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:13:19,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:13:19,413 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) [2022-07-12 13:13:20,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:20,005 INFO L93 Difference]: Finished difference Result 12432 states and 18919 transitions. [2022-07-12 13:13:20,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:13:20,006 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 [2022-07-12 13:13:20,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:20,033 INFO L225 Difference]: With dead ends: 12432 [2022-07-12 13:13:20,033 INFO L226 Difference]: Without dead ends: 7200 [2022-07-12 13:13:20,048 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 [2022-07-12 13:13:20,048 INFO L413 NwaCegarLoop]: 5959 mSDtfsCounter, 1485 mSDsluCounter, 5647 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-07-12 13:13:20,049 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] [2022-07-12 13:13:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2022-07-12 13:13:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7193. [2022-07-12 13:13:20,228 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) [2022-07-12 13:13:20,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7193 states to 7193 states and 10900 transitions. [2022-07-12 13:13:20,250 INFO L78 Accepts]: Start accepts. Automaton has 7193 states and 10900 transitions. Word has length 250 [2022-07-12 13:13:20,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:20,250 INFO L495 AbstractCegarLoop]: Abstraction has 7193 states and 10900 transitions. [2022-07-12 13:13:20,250 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) [2022-07-12 13:13:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7193 states and 10900 transitions. [2022-07-12 13:13:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-12 13:13:20,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:20,254 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] [2022-07-12 13:13:20,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:20,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:20,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:20,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:20,468 INFO L85 PathProgramCache]: Analyzing trace with hash -292812326, now seen corresponding path program 1 times [2022-07-12 13:13:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:20,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702507115] [2022-07-12 13:13:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:13:20,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:20,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:20,472 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:20,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 13:13:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:27,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 3579 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 13:13:27,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 482 proven. 21 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2022-07-12 13:13:28,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:13:32,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2022-07-12 13:13:32,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:32,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702507115] [2022-07-12 13:13:32,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702507115] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:13:32,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:13:32,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-12 13:13:32,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139462696] [2022-07-12 13:13:32,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:13:32,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 13:13:32,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:32,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 13:13:32,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-12 13:13:32,357 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) [2022-07-12 13:13:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:44,360 INFO L93 Difference]: Finished difference Result 14410 states and 21870 transitions. [2022-07-12 13:13:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 13:13:44,362 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 [2022-07-12 13:13:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:44,385 INFO L225 Difference]: With dead ends: 14410 [2022-07-12 13:13:44,385 INFO L226 Difference]: Without dead ends: 7217 [2022-07-12 13:13:44,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2022-07-12 13:13:44,401 INFO L413 NwaCegarLoop]: 5697 mSDtfsCounter, 80 mSDsluCounter, 62500 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s 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 [2022-07-12 13:13:44,402 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] [2022-07-12 13:13:44,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7217 states. [2022-07-12 13:13:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7217 to 7197. [2022-07-12 13:13:44,548 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) [2022-07-12 13:13:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 10906 transitions. [2022-07-12 13:13:44,569 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 10906 transitions. Word has length 305 [2022-07-12 13:13:44,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:44,570 INFO L495 AbstractCegarLoop]: Abstraction has 7197 states and 10906 transitions. [2022-07-12 13:13:44,570 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) [2022-07-12 13:13:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 10906 transitions. [2022-07-12 13:13:44,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-12 13:13:44,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:44,574 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] [2022-07-12 13:13:44,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:44,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:44,787 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:44,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:44,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1211485600, now seen corresponding path program 1 times [2022-07-12 13:13:44,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:44,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766647148] [2022-07-12 13:13:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:13:44,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:44,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:44,792 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:44,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 13:13:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:51,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 3635 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 13:13:51,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 552 proven. 28 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2022-07-12 13:13:52,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:13:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-07-12 13:13:57,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766647148] [2022-07-12 13:13:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766647148] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:13:57,925 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:13:57,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-07-12 13:13:57,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337253267] [2022-07-12 13:13:57,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:13:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-12 13:13:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-12 13:13:57,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-07-12 13:13:57,926 INFO L87 Difference]: Start difference. First operand 7197 states and 10906 transitions. Second operand has 23 states, 21 states have (on average 6.333333333333333) internal successors, (133), 23 states have internal predecessors, (133), 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)