./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/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-?-f4b24e3 [2022-07-14 00:50:31,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:50:31,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:50:31,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:50:31,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:50:31,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:50:31,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:50:31,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:50:31,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:50:31,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:50:31,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:50:31,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:50:31,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:50:31,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:50:31,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:50:31,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:50:31,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:50:31,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:50:31,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:50:31,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:50:31,490 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:50:31,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:50:31,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:50:31,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:50:31,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:50:31,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:50:31,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:50:31,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:50:31,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:50:31,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:50:31,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:50:31,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:50:31,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:50:31,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:50:31,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:50:31,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:50:31,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:50:31,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:50:31,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:50:31,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:50:31,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:50:31,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:50:31,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:50:31,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:50:31,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:50:31,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:50:31,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:50:31,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:50:31,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:50:31,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:50:31,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:50:31,531 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:50:31,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:50:31,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:50:31,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:50:31,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:50:31,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:50:31,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:50:31,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:50:31,533 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:50:31,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:50:31,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:50:31,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:50:31,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:50:31,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:50:31,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:50:31,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:50:31,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:50:31,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:50:31,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:50:31,535 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:50:31,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:50:31,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:50:31,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-14 00:50:31,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:50:31,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:50:31,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:50:31,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:50:31,786 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:50:31,787 INFO L432 ainManager$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 [2022-07-14 00:50:31,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5a211ea/d8740d6d755a42c5b57b352beaf856bb/FLAGff611b452 [2022-07-14 00:50:32,614 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:50:32,615 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 [2022-07-14 00:50:32,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5a211ea/d8740d6d755a42c5b57b352beaf856bb/FLAGff611b452 [2022-07-14 00:50:32,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5a211ea/d8740d6d755a42c5b57b352beaf856bb [2022-07-14 00:50:32,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:50:32,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:50:32,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:50:32,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:50:32,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:50:32,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:50:32" (1/1) ... [2022-07-14 00:50:32,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c261b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:32, skipping insertion in model container [2022-07-14 00:50:32,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:50:32" (1/1) ... [2022-07-14 00:50:32,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:50:33,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:50:35,739 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] [2022-07-14 00:50:35,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:50:35,944 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:50:36,236 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 00:50:36,240 INFO L158 Benchmark]: Toolchain (without parser) took 3365.87ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 64.2MB in the beginning and 89.9MB in the end (delta: -25.7MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2022-07-14 00:50:36,240 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 64.2MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:50:36,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3364.36ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 64.2MB in the beginning and 89.9MB in the end (delta: -25.7MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2022-07-14 00:50:36,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 64.2MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3364.36ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 64.2MB in the beginning and 89.9MB in the end (delta: -25.7MB). Peak memory consumption was 88.4MB. 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-?-f4b24e3 [2022-07-14 00:50:37,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:50:37,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:50:38,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:50:38,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:50:38,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:50:38,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:50:38,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:50:38,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:50:38,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:50:38,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:50:38,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:50:38,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:50:38,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:50:38,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:50:38,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:50:38,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:50:38,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:50:38,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:50:38,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:50:38,051 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:50:38,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:50:38,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:50:38,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:50:38,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:50:38,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:50:38,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:50:38,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:50:38,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:50:38,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:50:38,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:50:38,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:50:38,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:50:38,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:50:38,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:50:38,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:50:38,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:50:38,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:50:38,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:50:38,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:50:38,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:50:38,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:50:38,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:50:38,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:50:38,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:50:38,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:50:38,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:50:38,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:50:38,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:50:38,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:50:38,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:50:38,093 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:50:38,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:50:38,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:50:38,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:50:38,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:50:38,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:50:38,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:50:38,094 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:50:38,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:50:38,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:50:38,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:50:38,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:50:38,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:50:38,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:50:38,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:50:38,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:50:38,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:50:38,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:50:38,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:50:38,096 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:50:38,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:50:38,097 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:50:38,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:50:38,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:50:38,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:50:38,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-07-14 00:50:38,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:50:38,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:50:38,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:50:38,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:50:38,439 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:50:38,441 INFO L432 ainManager$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 [2022-07-14 00:50:38,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90141fbad/7dd2aac940b84bef820127ce9ee1c612/FLAGfe3649f25 [2022-07-14 00:50:39,266 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:50:39,267 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 [2022-07-14 00:50:39,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90141fbad/7dd2aac940b84bef820127ce9ee1c612/FLAGfe3649f25 [2022-07-14 00:50:39,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90141fbad/7dd2aac940b84bef820127ce9ee1c612 [2022-07-14 00:50:39,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:50:39,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:50:39,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:50:39,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:50:39,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:50:39,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:50:39" (1/1) ... [2022-07-14 00:50:39,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1770add0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:39, skipping insertion in model container [2022-07-14 00:50:39,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:50:39" (1/1) ... [2022-07-14 00:50:39,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:50:39,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:50:42,099 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] [2022-07-14 00:50:42,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:50:42,275 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:50:42,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:50:42,750 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] [2022-07-14 00:50:42,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:50:42,807 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:50:43,113 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] [2022-07-14 00:50:43,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:50:43,320 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:50:43,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43 WrapperNode [2022-07-14 00:50:43,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:50:43,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:50:43,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:50:43,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:50:43,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,676 INFO L137 Inliner]: procedures = 445, calls = 5265, calls flagged for inlining = 154, calls inlined = 136, statements flattened = 9918 [2022-07-14 00:50:43,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:50:43,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:50:43,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:50:43,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:50:43,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:43,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:44,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:44,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:50:44,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:50:44,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:50:44,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:50:44,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (1/1) ... [2022-07-14 00:50:44,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:50:44,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:50:44,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:50:44,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:50:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-07-14 00:50:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-07-14 00:50:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-07-14 00:50:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-07-14 00:50:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 00:50:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 00:50:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-14 00:50:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-14 00:50:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:50:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:50:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-07-14 00:50:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-07-14 00:50:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-07-14 00:50:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-07-14 00:50:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-07-14 00:50:44,202 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-07-14 00:50:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-07-14 00:50:44,202 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-07-14 00:50:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-14 00:50:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-07-14 00:50:44,202 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-07-14 00:50:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:50:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:50:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-07-14 00:50:44,203 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-07-14 00:50:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-07-14 00:50:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-07-14 00:50:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:50:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:50:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-14 00:50:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-07-14 00:50:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:50:44,205 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:50:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 00:50:44,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 00:50:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:50:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 00:50:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:50:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:50:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-07-14 00:50:44,206 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-07-14 00:50:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:50:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-07-14 00:50:44,207 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-07-14 00:50:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-07-14 00:50:44,208 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-07-14 00:50:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-14 00:50:44,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-07-14 00:50:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-07-14 00:50:44,209 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-07-14 00:50:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-14 00:50:44,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-07-14 00:50:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:50:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:50:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-14 00:50:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-07-14 00:50:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-07-14 00:50:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-07-14 00:50:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-07-14 00:50:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-07-14 00:50:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-07-14 00:50:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-07-14 00:50:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-07-14 00:50:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-07-14 00:50:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:50:44,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:50:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-07-14 00:50:44,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-07-14 00:50:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:50:44,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:50:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-07-14 00:50:44,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-07-14 00:50:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-07-14 00:50:44,213 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-07-14 00:50:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-07-14 00:50:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-07-14 00:50:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-07-14 00:50:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-07-14 00:50:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-07-14 00:50:44,215 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-07-14 00:50:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-07-14 00:50:44,215 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-07-14 00:50:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-14 00:50:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-14 00:50:44,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-14 00:50:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 00:50:44,216 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 00:50:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-07-14 00:50:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-07-14 00:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:50:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:50:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 00:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 00:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-07-14 00:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-07-14 00:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-07-14 00:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-07-14 00:50:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-14 00:50:44,218 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-14 00:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-14 00:50:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-07-14 00:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:50:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-07-14 00:50:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-07-14 00:50:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-07-14 00:50:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-07-14 00:50:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:50:44,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:50:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:50:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:50:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:50:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-07-14 00:50:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-07-14 00:50:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:50:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-07-14 00:50:44,225 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-07-14 00:50:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-07-14 00:50:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-07-14 00:50:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-07-14 00:50:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-07-14 00:50:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-07-14 00:50:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-07-14 00:50:44,232 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-07-14 00:50:44,232 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-07-14 00:50:44,232 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-14 00:50:44,232 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-14 00:50:44,232 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-07-14 00:50:44,232 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-07-14 00:50:44,232 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-07-14 00:50:44,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-07-14 00:50:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-07-14 00:50:44,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-07-14 00:50:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-07-14 00:50:44,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-07-14 00:50:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-14 00:50:44,233 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-14 00:50:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-07-14 00:50:44,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-07-14 00:50:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-14 00:50:44,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-14 00:50:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:50:44,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:50:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:50:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:50:44,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:50:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-07-14 00:50:44,235 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-07-14 00:50:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-07-14 00:50:44,235 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-07-14 00:50:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:50:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-14 00:50:44,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-14 00:50:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:50:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:50:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:50:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:50:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:50:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:50:44,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:50:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:50:44,236 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:50:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 00:50:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-07-14 00:50:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-07-14 00:50:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-07-14 00:50:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-07-14 00:50:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-07-14 00:50:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-07-14 00:50:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:50:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:50:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-07-14 00:50:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-07-14 00:50:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:50:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:50:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-07-14 00:50:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-07-14 00:50:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-07-14 00:50:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-07-14 00:50:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:50:44,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:50:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:50:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-14 00:50:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 00:50:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-07-14 00:50:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:50:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-14 00:50:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-07-14 00:50:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 00:50:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:50:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-07-14 00:50:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-07-14 00:50:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-07-14 00:50:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:50:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-07-14 00:50:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-07-14 00:50:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-07-14 00:50:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-07-14 00:50:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-07-14 00:50:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-07-14 00:50:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-07-14 00:50:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:50:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:50:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 00:50:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-07-14 00:50:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-07-14 00:50:45,207 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:50:45,209 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:50:46,428 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0bv64 != ~tmp___1~2;#res := ~ret~3; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0bv64 != ~tmp___1~2);#res := ~ret~3; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-07-14 00:50:46,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16bv32 == ~size; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10bv32 == ~size; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2bv32 == ~size; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8bv32 == ~size; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843-1: ~tmp___2~1 := #t~ret123;havoc #t~ret123;#res := ~tmp___2~1[32:0]; [2022-07-14 00:50:46,700 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 [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4bv32 == ~size; [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: ~tmp___1~2 := #t~ret122;havoc #t~ret122; [2022-07-14 00:50:46,700 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 [2022-07-14 00:50:46,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: ~tmp___0~8 := #t~ret121;havoc #t~ret121; [2022-07-14 00:50:46,700 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 [2022-07-14 00:50:46,701 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2022-07-14 00:50:46,701 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2022-07-14 00:52:15,990 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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 [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,991 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; [2022-07-14 00:52:15,992 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2022-07-14 00:52:15,992 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2022-07-14 00:52:15,992 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 [2022-07-14 00:52:15,992 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; [2022-07-14 00:52:15,992 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; [2022-07-14 00:52:15,992 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; [2022-07-14 00:52:15,992 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2022-07-14 00:52:15,992 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2022-07-14 00:52:15,992 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 [2022-07-14 00:52:15,992 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]; [2022-07-14 00:52:15,992 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; [2022-07-14 00:52:15,992 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; [2022-07-14 00:52:16,194 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:52:16,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:52:16,219 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:52:16,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:52:16 BoogieIcfgContainer [2022-07-14 00:52:16,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:52:16,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:52:16,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:52:16,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:52:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:50:39" (1/3) ... [2022-07-14 00:52:16,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e993159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:52:16, skipping insertion in model container [2022-07-14 00:52:16,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:50:43" (2/3) ... [2022-07-14 00:52:16,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e993159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:52:16, skipping insertion in model container [2022-07-14 00:52:16,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:52:16" (3/3) ... [2022-07-14 00:52:16,234 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:52:16,244 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:52:16,245 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:52:16,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:52:16,345 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@2f272aa4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ca41175 [2022-07-14 00:52:16,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:52:16,358 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) [2022-07-14 00:52:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-14 00:52:16,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:16,386 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] [2022-07-14 00:52:16,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:16,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:16,392 INFO L85 PathProgramCache]: Analyzing trace with hash 676289931, now seen corresponding path program 1 times [2022-07-14 00:52:16,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:52:16,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068740796] [2022-07-14 00:52:16,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:16,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:52:16,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:52:16,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:52:16,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:52:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:22,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-14 00:52:23,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:52:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-07-14 00:52:23,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:52:23,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:52:23,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068740796] [2022-07-14 00:52:23,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068740796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:52:23,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:52:23,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:52:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212338667] [2022-07-14 00:52:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:52:23,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 00:52:23,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:52:23,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 00:52:23,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 00:52:23,089 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) [2022-07-14 00:52:23,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:52:23,373 INFO L93 Difference]: Finished difference Result 7453 states and 11552 transitions. [2022-07-14 00:52:23,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 00:52:23,375 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 [2022-07-14 00:52:23,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:52:23,403 INFO L225 Difference]: With dead ends: 7453 [2022-07-14 00:52:23,404 INFO L226 Difference]: Without dead ends: 3714 [2022-07-14 00:52:23,424 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 [2022-07-14 00:52:23,429 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:52:23,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5749 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:52:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2022-07-14 00:52:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3714. [2022-07-14 00:52:23,615 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) [2022-07-14 00:52:23,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5728 transitions. [2022-07-14 00:52:23,648 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5728 transitions. Word has length 193 [2022-07-14 00:52:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:52:23,649 INFO L495 AbstractCegarLoop]: Abstraction has 3714 states and 5728 transitions. [2022-07-14 00:52:23,649 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) [2022-07-14 00:52:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5728 transitions. [2022-07-14 00:52:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-14 00:52:23,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:23,657 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] [2022-07-14 00:52:23,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 00:52:23,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:52:23,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:23,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2117889793, now seen corresponding path program 1 times [2022-07-14 00:52:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:52:23,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294911940] [2022-07-14 00:52:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:23,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:52:23,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:52:23,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:52:23,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:52:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:31,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:52:31,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:52:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-14 00:52:31,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:52:31,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:52:31,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294911940] [2022-07-14 00:52:31,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294911940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:52:31,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:52:31,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:52:31,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609463965] [2022-07-14 00:52:31,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:52:31,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:52:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:52:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:52:31,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:52:31,643 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) [2022-07-14 00:52:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:52:34,179 INFO L93 Difference]: Finished difference Result 7418 states and 11477 transitions. [2022-07-14 00:52:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:52:34,180 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 [2022-07-14 00:52:34,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:52:34,201 INFO L225 Difference]: With dead ends: 7418 [2022-07-14 00:52:34,201 INFO L226 Difference]: Without dead ends: 3717 [2022-07-14 00:52:34,216 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 [2022-07-14 00:52:34,216 INFO L413 NwaCegarLoop]: 5692 mSDtfsCounter, 6 mSDsluCounter, 22697 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28389 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:52:34,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28389 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 00:52:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-14 00:52:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-07-14 00:52:34,417 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) [2022-07-14 00:52:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5737 transitions. [2022-07-14 00:52:34,435 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5737 transitions. Word has length 193 [2022-07-14 00:52:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:52:34,435 INFO L495 AbstractCegarLoop]: Abstraction has 3717 states and 5737 transitions. [2022-07-14 00:52:34,436 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) [2022-07-14 00:52:34,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5737 transitions. [2022-07-14 00:52:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-14 00:52:34,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:34,438 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] [2022-07-14 00:52:34,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:52:34,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:52:34,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:34,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:34,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2032450187, now seen corresponding path program 1 times [2022-07-14 00:52:34,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:52:34,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100360523] [2022-07-14 00:52:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:34,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:52:34,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:52:34,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:52:34,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:52:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:52:42,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 3127 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 00:52:42,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:52:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-14 00:52:42,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:52:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-14 00:52:44,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:52:44,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100360523] [2022-07-14 00:52:44,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100360523] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:52:44,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:52:44,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-14 00:52:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301019001] [2022-07-14 00:52:44,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:52:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:52:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:52:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:52:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:52:44,567 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) [2022-07-14 00:52:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:52:49,378 INFO L93 Difference]: Finished difference Result 7429 states and 11501 transitions. [2022-07-14 00:52:49,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:52:49,396 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 [2022-07-14 00:52:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:52:49,415 INFO L225 Difference]: With dead ends: 7429 [2022-07-14 00:52:49,415 INFO L226 Difference]: Without dead ends: 3725 [2022-07-14 00:52:49,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:52:49,429 INFO L413 NwaCegarLoop]: 5694 mSDtfsCounter, 14 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:52:49,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39742 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-14 00:52:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3725 states. [2022-07-14 00:52:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3725 to 3723. [2022-07-14 00:52:49,522 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) [2022-07-14 00:52:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5744 transitions. [2022-07-14 00:52:49,536 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5744 transitions. Word has length 200 [2022-07-14 00:52:49,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:52:49,536 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5744 transitions. [2022-07-14 00:52:49,537 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) [2022-07-14 00:52:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5744 transitions. [2022-07-14 00:52:49,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-14 00:52:49,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:49,540 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] [2022-07-14 00:52:49,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:52:49,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:52:49,758 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:49,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:49,758 INFO L85 PathProgramCache]: Analyzing trace with hash 642298943, now seen corresponding path program 2 times [2022-07-14 00:52:49,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:52:49,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340845658] [2022-07-14 00:52:49,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:52:49,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:52:49,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:52:49,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:52:49,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:52:55,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:52:55,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:52:56,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 00:52:56,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:52:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-07-14 00:52:59,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:52:59,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:52:59,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340845658] [2022-07-14 00:52:59,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340845658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:52:59,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:52:59,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:52:59,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929447560] [2022-07-14 00:52:59,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:52:59,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:52:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:52:59,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:52:59,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:52:59,351 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) [2022-07-14 00:52:59,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:52:59,490 INFO L93 Difference]: Finished difference Result 5285 states and 8058 transitions. [2022-07-14 00:52:59,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:52:59,491 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 [2022-07-14 00:52:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:52:59,539 INFO L225 Difference]: With dead ends: 5285 [2022-07-14 00:52:59,540 INFO L226 Difference]: Without dead ends: 5280 [2022-07-14 00:52:59,546 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 [2022-07-14 00:52:59,548 INFO L413 NwaCegarLoop]: 6516 mSDtfsCounter, 2318 mSDsluCounter, 5623 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 12139 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:52:59,549 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] [2022-07-14 00:52:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2022-07-14 00:52:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5277. [2022-07-14 00:52:59,742 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) [2022-07-14 00:52:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 8050 transitions. [2022-07-14 00:52:59,759 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 8050 transitions. Word has length 207 [2022-07-14 00:52:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:52:59,760 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 8050 transitions. [2022-07-14 00:52:59,760 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) [2022-07-14 00:52:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 8050 transitions. [2022-07-14 00:52:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-14 00:52:59,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:52:59,762 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] [2022-07-14 00:52:59,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:52:59,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:52:59,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:52:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:52:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1607065466, now seen corresponding path program 1 times [2022-07-14 00:52:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:52:59,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332849239] [2022-07-14 00:52:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:52:59,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:52:59,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:52:59,994 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:52:59,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:53:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:53:07,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:53:07,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:53:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-14 00:53:08,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:53:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 00:53:10,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:53:10,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332849239] [2022-07-14 00:53:10,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332849239] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:53:10,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:53:10,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-14 00:53:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36284035] [2022-07-14 00:53:10,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:53:10,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:53:10,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:53:10,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:53:10,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:53:10,192 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) [2022-07-14 00:53:15,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:53:15,376 INFO L93 Difference]: Finished difference Result 10560 states and 16163 transitions. [2022-07-14 00:53:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:53:15,378 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 [2022-07-14 00:53:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:53:15,405 INFO L225 Difference]: With dead ends: 10560 [2022-07-14 00:53:15,406 INFO L226 Difference]: Without dead ends: 5287 [2022-07-14 00:53:15,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:53:15,425 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 24 mSDsluCounter, 34048 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:53:15,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 39743 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-14 00:53:15,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2022-07-14 00:53:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 5279. [2022-07-14 00:53:15,530 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) [2022-07-14 00:53:15,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8054 transitions. [2022-07-14 00:53:15,546 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8054 transitions. Word has length 216 [2022-07-14 00:53:15,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:53:15,546 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8054 transitions. [2022-07-14 00:53:15,547 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) [2022-07-14 00:53:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8054 transitions. [2022-07-14 00:53:15,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-14 00:53:15,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:53:15,549 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] [2022-07-14 00:53:15,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:53:15,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:53:15,756 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:53:15,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:53:15,756 INFO L85 PathProgramCache]: Analyzing trace with hash 837176656, now seen corresponding path program 2 times [2022-07-14 00:53:15,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:53:15,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99699996] [2022-07-14 00:53:15,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:53:15,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:53:15,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:53:15,760 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:53:15,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:53:21,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:53:21,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:53:21,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:53:21,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:53:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-07-14 00:53:25,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:53:25,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:53:25,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99699996] [2022-07-14 00:53:25,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99699996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:53:25,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:53:25,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:53:25,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963879085] [2022-07-14 00:53:25,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:53:25,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:53:25,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:53:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:53:25,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:53:25,081 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) [2022-07-14 00:53:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:53:25,243 INFO L93 Difference]: Finished difference Result 10529 states and 16066 transitions. [2022-07-14 00:53:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:53:25,244 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 [2022-07-14 00:53:25,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:53:25,287 INFO L225 Difference]: With dead ends: 10529 [2022-07-14 00:53:25,288 INFO L226 Difference]: Without dead ends: 5279 [2022-07-14 00:53:25,308 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 [2022-07-14 00:53:25,309 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 [2022-07-14 00:53:25,310 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] [2022-07-14 00:53:25,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5279 states. [2022-07-14 00:53:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5279 to 5279. [2022-07-14 00:53:25,449 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) [2022-07-14 00:53:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 8052 transitions. [2022-07-14 00:53:25,467 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 8052 transitions. Word has length 223 [2022-07-14 00:53:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:53:25,468 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 8052 transitions. [2022-07-14 00:53:25,468 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) [2022-07-14 00:53:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 8052 transitions. [2022-07-14 00:53:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-14 00:53:25,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:53:25,471 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] [2022-07-14 00:53:25,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:53:25,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:53:25,691 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:53:25,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:53:25,692 INFO L85 PathProgramCache]: Analyzing trace with hash -751171246, now seen corresponding path program 1 times [2022-07-14 00:53:25,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:53:25,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363849906] [2022-07-14 00:53:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:53:25,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:53:25,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:53:25,696 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:53:25,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:53:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:53:33,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 00:53:33,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:53:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-07-14 00:53:34,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:53:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-07-14 00:53:36,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:53:36,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363849906] [2022-07-14 00:53:36,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363849906] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:53:36,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:53:36,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-14 00:53:36,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414879676] [2022-07-14 00:53:36,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:53:36,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 00:53:36,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:53:36,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 00:53:36,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:53:36,682 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) [2022-07-14 00:53:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:53:44,725 INFO L93 Difference]: Finished difference Result 10568 states and 16176 transitions. [2022-07-14 00:53:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 00:53:44,727 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 [2022-07-14 00:53:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:53:44,756 INFO L225 Difference]: With dead ends: 10568 [2022-07-14 00:53:44,756 INFO L226 Difference]: Without dead ends: 5293 [2022-07-14 00:53:44,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:53:44,777 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 21 mSDsluCounter, 56796 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 62491 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:53:44,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62491 Invalid, 854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-07-14 00:53:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5293 states. [2022-07-14 00:53:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5293 to 5281. [2022-07-14 00:53:44,912 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) [2022-07-14 00:53:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 8056 transitions. [2022-07-14 00:53:44,931 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 8056 transitions. Word has length 223 [2022-07-14 00:53:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:53:44,931 INFO L495 AbstractCegarLoop]: Abstraction has 5281 states and 8056 transitions. [2022-07-14 00:53:44,932 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) [2022-07-14 00:53:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 8056 transitions. [2022-07-14 00:53:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-14 00:53:44,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:53:44,935 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] [2022-07-14 00:53:45,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:53:45,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:53:45,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:53:45,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:53:45,142 INFO L85 PathProgramCache]: Analyzing trace with hash -655912632, now seen corresponding path program 2 times [2022-07-14 00:53:45,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:53:45,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123112120] [2022-07-14 00:53:45,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:53:45,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:53:45,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:53:45,145 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:53:45,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:53:51,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:53:51,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:53:51,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:53:51,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:53:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2022-07-14 00:53:54,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:53:54,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:53:54,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123112120] [2022-07-14 00:53:54,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123112120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:53:54,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:53:54,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:53:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52828659] [2022-07-14 00:53:54,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:53:54,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:53:54,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:53:54,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:53:54,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:53:54,899 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) [2022-07-14 00:53:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:53:54,968 INFO L93 Difference]: Finished difference Result 5283 states and 8057 transitions. [2022-07-14 00:53:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:53:54,968 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 [2022-07-14 00:53:54,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:53:54,988 INFO L225 Difference]: With dead ends: 5283 [2022-07-14 00:53:54,988 INFO L226 Difference]: Without dead ends: 5237 [2022-07-14 00:53:54,992 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 [2022-07-14 00:53:54,992 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 [2022-07-14 00:53:54,992 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] [2022-07-14 00:53:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2022-07-14 00:53:55,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 5237. [2022-07-14 00:53:55,113 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) [2022-07-14 00:53:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 7996 transitions. [2022-07-14 00:53:55,128 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 7996 transitions. Word has length 230 [2022-07-14 00:53:55,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:53:55,128 INFO L495 AbstractCegarLoop]: Abstraction has 5237 states and 7996 transitions. [2022-07-14 00:53:55,128 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) [2022-07-14 00:53:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 7996 transitions. [2022-07-14 00:53:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 00:53:55,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:53:55,132 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] [2022-07-14 00:53:55,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-14 00:53:55,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:53:55,354 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:53:55,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:53:55,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1861933267, now seen corresponding path program 1 times [2022-07-14 00:53:55,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:53:55,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090557018] [2022-07-14 00:53:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:53:55,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:53:55,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:53:55,359 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:53:55,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:54:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:54:03,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 3329 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:54:03,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:54:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 198 proven. 10 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-07-14 00:54:04,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:54:07,633 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-07-14 00:54:07,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:54:07,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090557018] [2022-07-14 00:54:07,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090557018] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:54:07,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:54:07,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-14 00:54:07,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102081580] [2022-07-14 00:54:07,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:54:07,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 00:54:07,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:54:07,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 00:54:07,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:54:07,634 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) [2022-07-14 00:54:17,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:54:17,209 INFO L93 Difference]: Finished difference Result 10494 states and 16091 transitions. [2022-07-14 00:54:17,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 00:54:17,210 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 [2022-07-14 00:54:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:54:17,242 INFO L225 Difference]: With dead ends: 10494 [2022-07-14 00:54:17,243 INFO L226 Difference]: Without dead ends: 5267 [2022-07-14 00:54:17,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-14 00:54:17,260 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 40 mSDsluCounter, 51072 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s 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, 8.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:54:17,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 56767 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-07-14 00:54:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2022-07-14 00:54:17,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5255. [2022-07-14 00:54:17,397 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) [2022-07-14 00:54:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8029 transitions. [2022-07-14 00:54:17,420 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8029 transitions. Word has length 239 [2022-07-14 00:54:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:54:17,420 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 8029 transitions. [2022-07-14 00:54:17,420 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) [2022-07-14 00:54:17,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8029 transitions. [2022-07-14 00:54:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-14 00:54:17,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:54:17,423 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] [2022-07-14 00:54:17,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:54:17,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:54:17,651 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:54:17,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:54:17,652 INFO L85 PathProgramCache]: Analyzing trace with hash 966308871, now seen corresponding path program 1 times [2022-07-14 00:54:17,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:54:17,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515830540] [2022-07-14 00:54:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:54:17,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:54:17,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:54:17,660 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:54:17,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:54:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:54:25,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 3385 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 00:54:25,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:54:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 252 proven. 15 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2022-07-14 00:54:26,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:54:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-07-14 00:54:30,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:54:30,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515830540] [2022-07-14 00:54:30,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515830540] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:54:30,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:54:30,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-14 00:54:30,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041374165] [2022-07-14 00:54:30,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:54:30,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 00:54:30,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:54:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 00:54:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:54:30,744 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) [2022-07-14 00:54:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:54:40,199 INFO L93 Difference]: Finished difference Result 10518 states and 16099 transitions. [2022-07-14 00:54:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 00:54:40,200 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 [2022-07-14 00:54:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:54:40,219 INFO L225 Difference]: With dead ends: 10518 [2022-07-14 00:54:40,219 INFO L226 Difference]: Without dead ends: 5273 [2022-07-14 00:54:40,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-14 00:54:40,234 INFO L413 NwaCegarLoop]: 5696 mSDtfsCounter, 60 mSDsluCounter, 45457 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 51153 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:54:40,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 51153 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-07-14 00:54:40,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5273 states. [2022-07-14 00:54:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5273 to 5257. [2022-07-14 00:54:40,344 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) [2022-07-14 00:54:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8033 transitions. [2022-07-14 00:54:40,410 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8033 transitions. Word has length 245 [2022-07-14 00:54:40,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:54:40,410 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8033 transitions. [2022-07-14 00:54:40,411 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) [2022-07-14 00:54:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8033 transitions. [2022-07-14 00:54:40,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-14 00:54:40,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:54:40,413 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] [2022-07-14 00:54:40,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:54:40,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:54:40,613 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:54:40,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:54:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash -443402579, now seen corresponding path program 2 times [2022-07-14 00:54:40,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:54:40,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102729977] [2022-07-14 00:54:40,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:54:40,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:54:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:54:40,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:54:40,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:54:46,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:54:46,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:54:47,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:54:47,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:54:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2022-07-14 00:54:47,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:54:47,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:54:47,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102729977] [2022-07-14 00:54:47,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102729977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:54:47,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:54:47,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:54:47,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074736905] [2022-07-14 00:54:47,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:54:47,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:54:47,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:54:47,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:54:47,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:54:47,183 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) [2022-07-14 00:54:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:54:47,945 INFO L93 Difference]: Finished difference Result 12432 states and 18919 transitions. [2022-07-14 00:54:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:54:47,946 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 [2022-07-14 00:54:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:54:47,976 INFO L225 Difference]: With dead ends: 12432 [2022-07-14 00:54:47,976 INFO L226 Difference]: Without dead ends: 7200