./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d63f3d312d028079695bf95fa29efe98b168bcd1b57f8b32c4056bb2f52ae36f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:39:36,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:39:36,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:39:36,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:39:36,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:39:36,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:39:36,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:39:36,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:39:36,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:39:36,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:39:36,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:39:36,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:39:36,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:39:36,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:39:36,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:39:36,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:39:36,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:39:36,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:39:36,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:39:36,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:39:36,665 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:39:36,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:39:36,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:39:36,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:39:36,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:39:36,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:39:36,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:39:36,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:39:36,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:39:36,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:39:36,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:39:36,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:39:36,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:39:36,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:39:36,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:39:36,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:39:36,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:39:36,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:39:36,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:39:36,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:39:36,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:39:36,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:39:36,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:39:36,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:39:36,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:39:36,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:39:36,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:39:36,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:39:36,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:39:36,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:39:36,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:39:36,692 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:39:36,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:39:36,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:39:36,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:39:36,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:39:36,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:39:36,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:39:36,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:39:36,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:39:36,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:39:36,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:39:36,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:39:36,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:39:36,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:39:36,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:39:36,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:39:36,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:39:36,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:39:36,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:39:36,695 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:39:36,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:39:36,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:39:36,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63f3d312d028079695bf95fa29efe98b168bcd1b57f8b32c4056bb2f52ae36f [2022-07-12 13:39:36,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:39:36,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:39:36,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:39:36,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:39:36,875 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:39:36,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i [2022-07-12 13:39:36,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4fd839d6/ce9483b3d84842d98df74871558f65b9/FLAG05e1d819a [2022-07-12 13:39:37,546 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:39:37,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i [2022-07-12 13:39:37,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4fd839d6/ce9483b3d84842d98df74871558f65b9/FLAG05e1d819a [2022-07-12 13:39:37,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4fd839d6/ce9483b3d84842d98df74871558f65b9 [2022-07-12 13:39:37,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:39:37,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:39:37,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:39:37,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:39:37,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:39:37,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:39:37" (1/1) ... [2022-07-12 13:39:37,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4569f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:37, skipping insertion in model container [2022-07-12 13:39:37,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:39:37" (1/1) ... [2022-07-12 13:39:37,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:39:37,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:39:38,175 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [3810] [2022-07-12 13:39:39,913 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i[459385,459398] [2022-07-12 13:39:40,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:39:40,197 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:39:40,246 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [3810] [2022-07-12 13:39:40,557 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 13:39:40,565 INFO L158 Benchmark]: Toolchain (without parser) took 2883.94ms. Allocated memory was 142.6MB in the beginning and 224.4MB in the end (delta: 81.8MB). Free memory was 107.4MB in the beginning and 125.2MB in the end (delta: -17.7MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. [2022-07-12 13:39:40,566 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:39:40,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2882.01ms. Allocated memory was 142.6MB in the beginning and 224.4MB in the end (delta: 81.8MB). Free memory was 107.4MB in the beginning and 125.2MB in the end (delta: -17.7MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. [2022-07-12 13:39:40,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2882.01ms. Allocated memory was 142.6MB in the beginning and 224.4MB in the end (delta: 81.8MB). Free memory was 107.4MB in the beginning and 125.2MB in the end (delta: -17.7MB). Peak memory consumption was 126.8MB. 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d63f3d312d028079695bf95fa29efe98b168bcd1b57f8b32c4056bb2f52ae36f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:39:42,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:39:42,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:39:42,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:39:42,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:39:42,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:39:42,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:39:42,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:39:42,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:39:42,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:39:42,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:39:42,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:39:42,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:39:42,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:39:42,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:39:42,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:39:42,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:39:42,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:39:42,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:39:42,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:39:42,190 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:39:42,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:39:42,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:39:42,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:39:42,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:39:42,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:39:42,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:39:42,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:39:42,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:39:42,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:39:42,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:39:42,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:39:42,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:39:42,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:39:42,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:39:42,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:39:42,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:39:42,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:39:42,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:39:42,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:39:42,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:39:42,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:39:42,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:39:42,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:39:42,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:39:42,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:39:42,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:39:42,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:39:42,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:39:42,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:39:42,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:39:42,238 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:39:42,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:39:42,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:39:42,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:39:42,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:39:42,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:39:42,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:39:42,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:39:42,240 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:39:42,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:39:42,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:39:42,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:39:42,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:39:42,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:39:42,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:39:42,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:39:42,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:39:42,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:39:42,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:39:42,241 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:39:42,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:39:42,242 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:39:42,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:39:42,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:39:42,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:39:42,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63f3d312d028079695bf95fa29efe98b168bcd1b57f8b32c4056bb2f52ae36f [2022-07-12 13:39:42,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:39:42,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:39:42,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:39:42,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:39:42,510 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:39:42,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i [2022-07-12 13:39:42,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75525ca9c/96bc36bf54974eab8951923d191af80c/FLAG11c88c9be [2022-07-12 13:39:43,271 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:39:43,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i [2022-07-12 13:39:43,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75525ca9c/96bc36bf54974eab8951923d191af80c/FLAG11c88c9be [2022-07-12 13:39:43,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75525ca9c/96bc36bf54974eab8951923d191af80c [2022-07-12 13:39:43,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:39:43,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:39:43,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:39:43,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:39:43,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:39:43,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:39:43" (1/1) ... [2022-07-12 13:39:43,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eaf95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:43, skipping insertion in model container [2022-07-12 13:39:43,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:39:43" (1/1) ... [2022-07-12 13:39:43,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:39:43,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:39:43,998 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [3810] [2022-07-12 13:39:45,491 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i[459385,459398] [2022-07-12 13:39:45,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:39:45,681 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:39:45,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:39:45,760 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [3810] [2022-07-12 13:39:45,981 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i[459385,459398] [2022-07-12 13:39:45,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:39:46,007 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:39:46,107 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [3810] [2022-07-12 13:39:46,397 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i[459385,459398] [2022-07-12 13:39:46,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:39:46,573 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:39:46,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46 WrapperNode [2022-07-12 13:39:46,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:39:46,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:39:46,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:39:46,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:39:46,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:46,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:46,939 INFO L137 Inliner]: procedures = 442, calls = 6361, calls flagged for inlining = 129, calls inlined = 123, statements flattened = 13972 [2022-07-12 13:39:46,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:39:46,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:39:46,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:39:46,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:39:46,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:46,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:46,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:46,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:47,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:47,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:47,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:47,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:39:47,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:39:47,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:39:47,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:39:47,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (1/1) ... [2022-07-12 13:39:47,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:39:47,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:39:47,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:39:47,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:39:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 13:39:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 13:39:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure to_sd [2022-07-12 13:39:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sd [2022-07-12 13:39:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_tuner [2022-07-12 13:39:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_tuner [2022-07-12 13:39:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:39:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:39:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:39:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:39:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2388x [2022-07-12 13:39:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2388x [2022-07-12 13:39:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_tuner [2022-07-12 13:39:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_tuner [2022-07-12 13:39:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2583x [2022-07-12 13:39:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2583x [2022-07-12 13:39:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure to_ir_state [2022-07-12 13:39:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure to_ir_state [2022-07-12 13:39:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-12 13:39:47,226 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-12 13:39:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_ns [2022-07-12 13:39:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_ns [2022-07-12 13:39:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:39:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:39:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-07-12 13:39:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-07-12 13:39:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-07-12 13:39:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-07-12 13:39:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:39:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:39:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_sliced_fmt [2022-07-12 13:39:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_sliced_fmt [2022-07-12 13:39:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:39:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:39:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:39:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-07-12 13:39:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-07-12 13:39:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_resolution [2022-07-12 13:39:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_resolution [2022-07-12 13:39:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-12 13:39:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-12 13:39:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure cx25836_initialize [2022-07-12 13:39:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25836_initialize [2022-07-12 13:39:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write4 [2022-07-12 13:39:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write4 [2022-07-12 13:39:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ext_ctrls [2022-07-12 13:39:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ext_ctrls [2022-07-12 13:39:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_frequency [2022-07-12 13:39:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_frequency [2022-07-12 13:39:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_std_setup [2022-07-12 13:39:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_std_setup [2022-07-12 13:39:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-12 13:39:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-12 13:39:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_modulation_enable [2022-07-12 13:39:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_modulation_enable [2022-07-12 13:39:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure cx23885_initialize [2022-07-12 13:39:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23885_initialize [2022-07-12 13:39:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_raw_fmt [2022-07-12 13:39:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_raw_fmt [2022-07-12 13:39:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or [2022-07-12 13:39:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or [2022-07-12 13:39:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ctrl [2022-07-12 13:39:47,233 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ctrl [2022-07-12 13:39:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure set_audclk_freq [2022-07-12 13:39:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure set_audclk_freq [2022-07-12 13:39:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_g_parameters [2022-07-12 13:39:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_g_parameters [2022-07-12 13:39:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_initialize [2022-07-12 13:39:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_initialize [2022-07-12 13:39:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 13:39:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 13:39:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:39:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:39:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_input_status [2022-07-12 13:39:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_input_status [2022-07-12 13:39:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure lpf_count_to_ns [2022-07-12 13:39:47,235 INFO L138 BoogieDeclarations]: Found implementation of procedure lpf_count_to_ns [2022-07-12 13:39:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_set_audclk_freq [2022-07-12 13:39:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_set_audclk_freq [2022-07-12 13:39:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:39:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_us [2022-07-12 13:39:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_us [2022-07-12 13:39:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:39:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 13:39:47,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 13:39:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:39:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 13:39:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:39:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 13:39:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2022-07-12 13:39:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2022-07-12 13:39:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:39:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_name [2022-07-12 13:39:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_name [2022-07-12 13:39:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_decode_vbi_line [2022-07-12 13:39:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_decode_vbi_line [2022-07-12 13:39:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_clocks_to_clock_divider [2022-07-12 13:39:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_clocks_to_clock_divider [2022-07-12 13:39:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx231xx [2022-07-12 13:39:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx231xx [2022-07-12 13:39:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-12 13:39:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-12 13:39:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_probe [2022-07-12 13:39:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_probe [2022-07-12 13:39:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 13:39:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 13:39:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure odd_parity [2022-07-12 13:39:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure odd_parity [2022-07-12 13:39:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_enable [2022-07-12 13:39:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_enable [2022-07-12 13:39:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 13:39:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 13:39:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure filter_rx_s_min_width [2022-07-12 13:39:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure filter_rx_s_min_width [2022-07-12 13:39:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:39:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_shutdown [2022-07-12 13:39:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_shutdown [2022-07-12 13:39:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 13:39:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 13:39:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:39:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:39:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ctrl [2022-07-12 13:39:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ctrl [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_s_parameters [2022-07-12 13:39:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_s_parameters [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:39:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:39:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:39:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure input_change [2022-07-12 13:39:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure input_change [2022-07-12 13:39:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_g_parameters [2022-07-12 13:39:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_g_parameters [2022-07-12 13:39:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_querymenu [2022-07-12 13:39:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_querymenu [2022-07-12 13:39:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 13:39:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 13:39:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_probe [2022-07-12 13:39:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_probe [2022-07-12 13:39:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-12 13:39:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-12 13:39:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_shutdown [2022-07-12 13:39:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_shutdown [2022-07-12 13:39:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:39:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:39:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:39:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:39:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_enable [2022-07-12 13:39:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_enable [2022-07-12 13:39:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 13:39:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 13:39:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:39:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:39:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:39:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:39:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_freq_to_clock_divider [2022-07-12 13:39:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_freq_to_clock_divider [2022-07-12 13:39:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_demodulation_enable [2022-07-12 13:39:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_demodulation_enable [2022-07-12 13:39:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:39:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:39:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_work_handler [2022-07-12 13:39:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_work_handler [2022-07-12 13:39:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:39:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 13:39:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 13:39:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write [2022-07-12 13:39:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write [2022-07-12 13:39:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:39:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-12 13:39:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-12 13:39:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure set_volume [2022-07-12 13:39:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure set_volume [2022-07-12 13:39:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure cx231xx_initialize [2022-07-12 13:39:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure cx231xx_initialize [2022-07-12 13:39:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:39:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ext_ctrls [2022-07-12 13:39:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ext_ctrls [2022-07-12 13:39:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:39:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 13:39:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:39:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:39:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_notify [2022-07-12 13:39:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_notify [2022-07-12 13:39:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 13:39:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 13:39:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 13:39:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 13:39:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-12 13:39:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-12 13:39:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 13:39:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 13:39:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 13:39:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 13:39:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_try_ext_ctrls [2022-07-12 13:39:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_try_ext_ctrls [2022-07-12 13:39:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 13:39:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 13:39:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_tx [2022-07-12 13:39:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_tx [2022-07-12 13:39:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_queryctrl [2022-07-12 13:39:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_queryctrl [2022-07-12 13:39:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_freq [2022-07-12 13:39:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_freq [2022-07-12 13:39:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_std [2022-07-12 13:39:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_std [2022-07-12 13:39:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_s_parameters [2022-07-12 13:39:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_s_parameters [2022-07-12 13:39:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure to_state [2022-07-12 13:39:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure to_state [2022-07-12 13:39:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_register [2022-07-12 13:39:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_register [2022-07-12 13:39:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_register [2022-07-12 13:39:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_register [2022-07-12 13:39:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure set_input [2022-07-12 13:39:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure set_input [2022-07-12 13:39:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:39:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 13:39:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure cx23888_std_setup [2022-07-12 13:39:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23888_std_setup [2022-07-12 13:39:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:39:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-12 13:39:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-12 13:39:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:39:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_rx [2022-07-12 13:39:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_rx [2022-07-12 13:39:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or4 [2022-07-12 13:39:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or4 [2022-07-12 13:39:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read [2022-07-12 13:39:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read [2022-07-12 13:39:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:39:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:39:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_sliced_fmt [2022-07-12 13:39:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_sliced_fmt [2022-07-12 13:39:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2022-07-12 13:39:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2022-07-12 13:39:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_adapter_id [2022-07-12 13:39:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_adapter_id [2022-07-12 13:39:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_carrier_freq [2022-07-12 13:39:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_carrier_freq [2022-07-12 13:39:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-12 13:39:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-12 13:39:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_s_edge_detection [2022-07-12 13:39:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_s_edge_detection [2022-07-12 13:39:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-12 13:39:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-12 13:39:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read4 [2022-07-12 13:39:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read4 [2022-07-12 13:39:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rx_params_lock_of_cx25840_ir_state [2022-07-12 13:39:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-12 13:39:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-12 13:39:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23885 [2022-07-12 13:39:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23885 [2022-07-12 13:39:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_pulse_clocks [2022-07-12 13:39:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_pulse_clocks [2022-07-12 13:39:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23888 [2022-07-12 13:39:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23888 [2022-07-12 13:39:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23887 [2022-07-12 13:39:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23887 [2022-07-12 13:39:48,270 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:39:48,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:39:51,419 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:42:41,852 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:42:41,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:42:41,883 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:42:41,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:42:41 BoogieIcfgContainer [2022-07-12 13:42:41,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:42:41,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:42:41,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:42:41,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:42:41,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:39:43" (1/3) ... [2022-07-12 13:42:41,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26979ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:42:41, skipping insertion in model container [2022-07-12 13:42:41,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:46" (2/3) ... [2022-07-12 13:42:41,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26979ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:42:41, skipping insertion in model container [2022-07-12 13:42:41,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:42:41" (3/3) ... [2022-07-12 13:42:41,897 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--i2c--cx25840--cx25840.ko-entry_point.cil.out.i [2022-07-12 13:42:41,906 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:42:41,907 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:42:42,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:42:42,074 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@1ce0fa24, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@69e3137a [2022-07-12 13:42:42,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:42:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 8702 states, 4997 states have (on average 1.1885131078647189) internal successors, (5939), 5043 states have internal predecessors, (5939), 3584 states have call successors, (3584), 120 states have call predecessors, (3584), 119 states have return successors, (3569), 3561 states have call predecessors, (3569), 3569 states have call successors, (3569) [2022-07-12 13:42:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-07-12 13:42:42,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:42,117 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:42,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1030560293, now seen corresponding path program 1 times [2022-07-12 13:42:42,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:42:42,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440726257] [2022-07-12 13:42:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:42,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:42:42,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:42:42,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:42:42,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:42:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:44,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 3300 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 13:42:44,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:42:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2844 backedges. 513 proven. 0 refuted. 0 times theorem prover too weak. 2331 trivial. 0 not checked. [2022-07-12 13:42:44,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:42:44,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:42:44,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440726257] [2022-07-12 13:42:44,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440726257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:44,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:44,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:42:44,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706400435] [2022-07-12 13:42:44,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:44,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 13:42:44,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:42:44,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 13:42:44,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:42:44,325 INFO L87 Difference]: Start difference. First operand has 8702 states, 4997 states have (on average 1.1885131078647189) internal successors, (5939), 5043 states have internal predecessors, (5939), 3584 states have call successors, (3584), 120 states have call predecessors, (3584), 119 states have return successors, (3569), 3561 states have call predecessors, (3569), 3569 states have call successors, (3569) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-12 13:42:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:44,666 INFO L93 Difference]: Finished difference Result 17399 states and 26261 transitions. [2022-07-12 13:42:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 13:42:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 458 [2022-07-12 13:42:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:44,735 INFO L225 Difference]: With dead ends: 17399 [2022-07-12 13:42:44,735 INFO L226 Difference]: Without dead ends: 8680 [2022-07-12 13:42:44,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:42:44,798 INFO L413 NwaCegarLoop]: 13079 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, 13079 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:44,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13079 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:42:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8680 states. [2022-07-12 13:42:47,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8680 to 8680. [2022-07-12 13:42:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8680 states, 4992 states have (on average 1.1850961538461537) internal successors, (5916), 5021 states have internal predecessors, (5916), 3569 states have call successors, (3569), 119 states have call predecessors, (3569), 118 states have return successors, (3559), 3551 states have call predecessors, (3559), 3559 states have call successors, (3559) [2022-07-12 13:42:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8680 states to 8680 states and 13044 transitions. [2022-07-12 13:42:47,853 INFO L78 Accepts]: Start accepts. Automaton has 8680 states and 13044 transitions. Word has length 458 [2022-07-12 13:42:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:47,855 INFO L495 AbstractCegarLoop]: Abstraction has 8680 states and 13044 transitions. [2022-07-12 13:42:47,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-12 13:42:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8680 states and 13044 transitions. [2022-07-12 13:42:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-07-12 13:42:47,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:47,867 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:47,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:42:48,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:42:48,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash -273770679, now seen corresponding path program 1 times [2022-07-12 13:42:48,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:42:48,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767102477] [2022-07-12 13:42:48,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:48,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:42:48,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:42:48,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:42:48,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:42:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:50,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 3300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:42:50,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:42:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2844 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 2736 trivial. 0 not checked. [2022-07-12 13:42:51,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:42:51,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:42:51,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767102477] [2022-07-12 13:42:51,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767102477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:51,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:51,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:42:51,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168521721] [2022-07-12 13:42:51,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:51,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:42:51,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:42:51,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:42:51,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:42:51,403 INFO L87 Difference]: Start difference. First operand 8680 states and 13044 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-12 13:42:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:54,314 INFO L93 Difference]: Finished difference Result 17326 states and 26059 transitions. [2022-07-12 13:42:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:42:54,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 458 [2022-07-12 13:42:54,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:54,376 INFO L225 Difference]: With dead ends: 17326 [2022-07-12 13:42:54,376 INFO L226 Difference]: Without dead ends: 8681 [2022-07-12 13:42:54,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:42:54,424 INFO L413 NwaCegarLoop]: 13026 mSDtfsCounter, 6 mSDsluCounter, 52063 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 65089 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:54,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 65089 Invalid, 142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 13:42:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8681 states. [2022-07-12 13:42:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8681. [2022-07-12 13:42:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8681 states, 4993 states have (on average 1.185059082715802) internal successors, (5917), 5022 states have internal predecessors, (5917), 3569 states have call successors, (3569), 119 states have call predecessors, (3569), 118 states have return successors, (3559), 3551 states have call predecessors, (3559), 3559 states have call successors, (3559) [2022-07-12 13:42:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8681 states to 8681 states and 13045 transitions. [2022-07-12 13:42:56,925 INFO L78 Accepts]: Start accepts. Automaton has 8681 states and 13045 transitions. Word has length 458 [2022-07-12 13:42:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:56,928 INFO L495 AbstractCegarLoop]: Abstraction has 8681 states and 13045 transitions. [2022-07-12 13:42:56,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-12 13:42:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand 8681 states and 13045 transitions. [2022-07-12 13:42:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-07-12 13:42:56,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:56,934 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:56,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:42:57,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:42:57,144 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:57,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2004782655, now seen corresponding path program 1 times [2022-07-12 13:42:57,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:42:57,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916931064] [2022-07-12 13:42:57,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:57,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:42:57,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:42:57,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:42:57,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:42:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 3443 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:42:59,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:43:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 144 proven. 1 refuted. 0 times theorem prover too weak. 2946 trivial. 0 not checked. [2022-07-12 13:43:00,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:43:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2022-07-12 13:43:04,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:43:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916931064] [2022-07-12 13:43:04,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916931064] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:43:04,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:43:04,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 13:43:04,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900118900] [2022-07-12 13:43:04,132 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:43:04,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 13:43:04,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:43:04,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 13:43:04,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:43:04,134 INFO L87 Difference]: Start difference. First operand 8681 states and 13045 transitions. Second operand has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 11 states have internal predecessors, (93), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-07-12 13:43:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:43:09,150 INFO L93 Difference]: Finished difference Result 17333 states and 26067 transitions. [2022-07-12 13:43:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:43:09,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 11 states have internal predecessors, (93), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 471 [2022-07-12 13:43:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:43:09,226 INFO L225 Difference]: With dead ends: 17333 [2022-07-12 13:43:09,227 INFO L226 Difference]: Without dead ends: 8687 [2022-07-12 13:43:09,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 931 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:43:09,270 INFO L413 NwaCegarLoop]: 13027 mSDtfsCounter, 8 mSDsluCounter, 91117 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 104144 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:43:09,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 104144 Invalid, 249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 13:43:09,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8687 states. [2022-07-12 13:43:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8687 to 8687. [2022-07-12 13:43:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8687 states, 4997 states have (on average 1.1849109465679408) internal successors, (5921), 5026 states have internal predecessors, (5921), 3570 states have call successors, (3570), 120 states have call predecessors, (3570), 119 states have return successors, (3560), 3552 states have call predecessors, (3560), 3560 states have call successors, (3560) [2022-07-12 13:43:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8687 states to 8687 states and 13051 transitions. [2022-07-12 13:43:11,824 INFO L78 Accepts]: Start accepts. Automaton has 8687 states and 13051 transitions. Word has length 471 [2022-07-12 13:43:11,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:43:11,826 INFO L495 AbstractCegarLoop]: Abstraction has 8687 states and 13051 transitions. [2022-07-12 13:43:11,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 11 states have internal predecessors, (93), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-07-12 13:43:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8687 states and 13051 transitions. [2022-07-12 13:43:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-07-12 13:43:11,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:43:11,833 INFO L195 NwaCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:43:11,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:43:12,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:43:12,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:43:12,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:43:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash 990167561, now seen corresponding path program 2 times [2022-07-12 13:43:12,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:43:12,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081530545] [2022-07-12 13:43:12,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:43:12,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:43:12,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:43:12,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:43:12,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:43:13,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:43:13,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:43:13,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2045 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:43:13,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:43:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3507 trivial. 0 not checked. [2022-07-12 13:43:14,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:43:14,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:43:14,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081530545] [2022-07-12 13:43:14,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081530545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:43:14,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:43:14,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:43:14,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066257660] [2022-07-12 13:43:14,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:43:14,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:43:14,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:43:14,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:43:14,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:43:14,150 INFO L87 Difference]: Start difference. First operand 8687 states and 13051 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-12 13:43:16,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:43:16,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:43:16,934 INFO L93 Difference]: Finished difference Result 25868 states and 38881 transitions. [2022-07-12 13:43:16,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:43:16,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 484 [2022-07-12 13:43:16,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:43:17,025 INFO L225 Difference]: With dead ends: 25868 [2022-07-12 13:43:17,025 INFO L226 Difference]: Without dead ends: 17254 [2022-07-12 13:43:17,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:43:17,080 INFO L413 NwaCegarLoop]: 16578 mSDtfsCounter, 12866 mSDsluCounter, 13030 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12866 SdHoareTripleChecker+Valid, 29608 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:43:17,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12866 Valid, 29608 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 13:43:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17254 states. [2022-07-12 13:43:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17254 to 17248. [2022-07-12 13:43:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17248 states, 9923 states have (on average 1.1853270180388995) internal successors, (11762), 9972 states have internal predecessors, (11762), 7087 states have call successors, (7087), 238 states have call predecessors, (7087), 237 states have return successors, (7077), 7061 states have call predecessors, (7077), 7077 states have call successors, (7077) [2022-07-12 13:43:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17248 states to 17248 states and 25926 transitions. [2022-07-12 13:43:24,371 INFO L78 Accepts]: Start accepts. Automaton has 17248 states and 25926 transitions. Word has length 484 [2022-07-12 13:43:24,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:43:24,373 INFO L495 AbstractCegarLoop]: Abstraction has 17248 states and 25926 transitions. [2022-07-12 13:43:24,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-12 13:43:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 17248 states and 25926 transitions. [2022-07-12 13:43:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-07-12 13:43:24,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:43:24,378 INFO L195 NwaCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:43:24,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:43:24,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:43:24,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:43:24,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:43:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1513227909, now seen corresponding path program 1 times [2022-07-12 13:43:24,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:43:24,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039695469] [2022-07-12 13:43:24,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:43:24,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:43:24,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:43:24,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:43:24,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:43:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:27,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 3595 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 13:43:27,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:43:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 204 proven. 3 refuted. 0 times theorem prover too weak. 3300 trivial. 0 not checked. [2022-07-12 13:43:28,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:43:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3507 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 3324 trivial. 0 not checked. [2022-07-12 13:43:32,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:43:32,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039695469] [2022-07-12 13:43:32,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039695469] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:43:32,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:43:32,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 13:43:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296100136] [2022-07-12 13:43:32,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:43:32,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 13:43:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:43:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 13:43:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:43:32,945 INFO L87 Difference]: Start difference. First operand 17248 states and 25926 transitions. Second operand has 13 states, 11 states have (on average 8.909090909090908) internal successors, (98), 13 states have internal predecessors, (98), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-07-12 13:43:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:43:39,905 INFO L93 Difference]: Finished difference Result 34471 states and 51843 transitions. [2022-07-12 13:43:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:43:39,906 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.909090909090908) internal successors, (98), 13 states have internal predecessors, (98), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 487 [2022-07-12 13:43:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:43:39,996 INFO L225 Difference]: With dead ends: 34471 [2022-07-12 13:43:39,997 INFO L226 Difference]: Without dead ends: 17250 [2022-07-12 13:43:40,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-07-12 13:43:40,087 INFO L413 NwaCegarLoop]: 13027 mSDtfsCounter, 9 mSDsluCounter, 130172 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 143199 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:43:40,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 143199 Invalid, 343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-12 13:43:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17250 states. [2022-07-12 13:43:47,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17250 to 17250. [2022-07-12 13:43:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17250 states, 9925 states have (on average 1.1852896725440807) internal successors, (11764), 9974 states have internal predecessors, (11764), 7087 states have call successors, (7087), 238 states have call predecessors, (7087), 237 states have return successors, (7077), 7061 states have call predecessors, (7077), 7077 states have call successors, (7077) [2022-07-12 13:43:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17250 states to 17250 states and 25928 transitions. [2022-07-12 13:43:47,197 INFO L78 Accepts]: Start accepts. Automaton has 17250 states and 25928 transitions. Word has length 487 [2022-07-12 13:43:47,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:43:47,198 INFO L495 AbstractCegarLoop]: Abstraction has 17250 states and 25928 transitions. [2022-07-12 13:43:47,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.909090909090908) internal successors, (98), 13 states have internal predecessors, (98), 4 states have call successors, (50), 2 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-07-12 13:43:47,198 INFO L276 IsEmpty]: Start isEmpty. Operand 17250 states and 25928 transitions. [2022-07-12 13:43:47,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2022-07-12 13:43:47,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:43:47,202 INFO L195 NwaCegarLoop]: trace histogram [39, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:43:47,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:43:47,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:43:47,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:43:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:43:47,420 INFO L85 PathProgramCache]: Analyzing trace with hash -818921137, now seen corresponding path program 2 times [2022-07-12 13:43:47,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:43:47,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606371711] [2022-07-12 13:43:47,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:43:47,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:43:47,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:43:47,424 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:43:47,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:43:49,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:43:49,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:43:49,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:43:49,101 INFO L286 TraceCheckSpWp]: Computing forward predicates...